E-direct Catalogue - Endress+Hauser South Africa

A bull’s eye in quality. 

E-direct Product Overview 

www.za.endress.com

About E-direct 

The Endress+Hauser Group is among the leading international 

providers of measurement instruments, services and automation 

solutions for industrial process engineering. Endress+Hauser offer 

a complete product basket of innovative high quality products to 

complete solutions. 

Endresss+Hauser’s exclusive E-direct product range positions 

itself as a cost effective solution to the process environment. E- 

direct products are quality products offered at economical prices. 

Stockable products are shipped within 24 hours from Johannesburg 

and non-stockable products within 48 hours from Production 

Centres. 

The E-direct product range are used every day that require minimal 

application assistance to select, thus allows for a straightforward 

ordering process. Consultation from manufacturers or engineering 

support is rarely required for these “standard” products. 

E-direct offers the following benefits: 

• Competitive prices 

• Transparency via price/ quantity discount shown 

• Stockable product are despatch within 24 hours 

from Johannesburg 

Products are competitively priced and discounts are available 

in relation to the quantity of units purchased. The E-direct 

product range compliments the traditional range of products from 

Endress+Hauser. 

E-direct range comprises: 

Level measurement: 

• Universal limit switches for liquids and solids 

• Level limit switches for solids 

• Vibration limit switches for liquids 

• Level limits switches for multiple point detection 

in conductive liquids 

Pressure measurement 

• Pressure transducer 

• Pressure transmitters 

Temperature measurement 

• Temperature transmitters 

• Temperature sensors 

Recorders 

• Paperless recorders 

Components 

• Digital loop powered displays 

• Process transmitters 

• Contractors 

• Power suppliers 

Publisher: 

Endress+Hauser South Africa (Pty) Ltd 

5 Commerce Crescent West 

Eastgate Ext 13, Sandton 

We reserve the right to introduce technical changes 

without prior notice. 

2 Tel: 011 262 8000 Fax: 011 262 8062 E-mail: E-direct@za.endress.com

Table of contents 

Level 

Pressure 

Flow 

Limit detection in liquids 

Short vibrating fork: 38 mm Liquiphant T FTL20 4 

Conductive probes Liquipoint T FTW31 5 

Remote switching unit for conductive sensors Nivotester FTW325 6 

Floating Switch Liquifloat T FTS20 7 

Limit detection in bulk solids 

Capacitance probe Nivector FTC968 8 

Vibrating rod probe Soliphant T FTM20 9 

Capacitive limit switches Minicap FTC260 10 

Rotating paddle Soliswitch FTE30 11 

Pressure transducer up to 40 bar Cerabar T PMC131 12 

Pressure transducer up to 400 bar Cerabar T PMP131 13 

Flow switch with 1 or 2 x PNP 

or 1 x PNP + 4… 20 mA 

Flowphant T DTT31 14 

Temperature 

Temperature switches 

1 x PNP + 4… 20 mA Thermophant T TTR31 15 

Registration 

1 x PNP + 4… 20 mA with hygienic design Thermophant T TTR35 16 

Compact thermometers 

Fast response compact thermometer (Pt100) Easytemp TMR31 17 

Fast response compact thermometer (Pt100) with 

hygienic design 

Paperless recorder Ecograph T RSG30 20 

Components 

Displays 

With transmitter power supply RIA45 21 

Loop powered displays RIA251/261 22 

Color display with control functions RIA452 23 

Other components 

Process transmitter RMA421 24 

Power supply RN221N 25 

Power supply RNS221 26 

Surge arresters HAW56x 27 

Page 

Easytemp TMR35 18 

Transmitters 

DIN rail head transmitters iTemp TMT127/187 and TMT128/188 19 

Refer to website for sales and supply conditions. 

All prices are subject to R.O.E. and exclude VAT. 

3

Compact vibronic point level switch for liquids 

Liquiphant T FTL20 

Level 

• 38 mm fork/1.4435/316L 

• ½” thread 

• Compact size for simple installation in places difficult to access 

• Rugged stainless steel housing 316L/1.4435 

• Overspill protection and leakage detection 

• AC, DC or AS-i bus connection 

approval 

Application 

Liquiphant T FTL20 is a reliable level limit switch, for liquids. Its 

38 mm fork and its small process connections enable mounting 

it also in tanks as in very narrow pipes for example as pump 

protection. FTL20 fears no build up, bubbles or turbulences. It 

works independently from conductivity. 

Function 

The integrated electronic detects the change in the fork vibrating 

frequency when it gets covered and uncovered by the liquid. 

FTL20 can be directly connected to AS-i bus, alternating voltage 

or to a PLC. 

Product: 

all kinds of liquids 

Product density: 

≥ 0.7 g/cm 3 

Product viscosity: 

≤ 10 000 mm 2 /s (cSt) 

Mounting: 

vessels or pipes from DN25 

Product temperature: 

-40… +100 °C 

Process pressure: 

max. 40 bar 

Liquiphant T FTL20 

Connector Temperature Process conn. Electronics 

Valve -40… ISO 228 AC 

connector +100 °C G ½” DC PNP 

Order no. 

FTL20-0010 

FTL20-0020 

Technical Data 

Output AC version 

• Power supply 19… 253 VAC, 50/60 Hz 

• Electrical connection Valve connector 

Output DC version 

• Power supply 10… 35 VDC 

• Electrical connection Valve connector or M12x1 

AS-i bus 

• Power supply 24.5… 31 VDC 

• Electrical connection M12x1 

Output general 

• Switching time Approx. 0.5 s when covered; 

approx. 1.0 s when free 

• Hysteresis Approx. 2 mm with vertical mounting from top 

• Process connection G ½” 

Operating conditions 

• Orientation as required 

• Switch point vertical installation: 13 mm 

horizontal installation: 3.5 mm 

• Ambient temperature -40… +70 °C, AS-i bus -25… +70 °C 

• Temp. of product -40… +100 °C 

• Operating pressure -1… +40 bar 

• Storage temperature -40… +85 °C 

• Density of product min. 0.7 g/cm 3 

• Viscosity of product up to 10000 mm 2 /s (cSt) 

Approvals 

• WHG approval Overspill protection to §19 WHG (Germany) 

• Leakage 

4 Tel: 011 262 8000 Fax: 011 262 8062 

E-mail: E-direct@za.endress.com

Conductivity point level switch for multiple point detection 

Liquipoint T FTW31 

• Detect up to five level limits with one probe 

• Flexible instrumentation (compact/separate) 

• No moving parts in the tank 

• No calibration required 

Level 

approval 

Product: 

liquids as of 5 μs/cm 


-40… +100 °C 

Measuring points: 

up to 4 measuring points with 

5 rods 


-1… +10 bar 

Applications 

Liquipoint T sensors are used in conductive liquids for determining 

level limits. Depending on the number of measuring points, 

measuring tasks such as overspill protection, dry running protection, 

two-point control of pumps or multiple point detection can be 

implemented for an existing process connection. 

Function 

An alternating voltage exists between the rod probes in an empty 

tank. As soon as the conductive liquid in the tank creates a 

connection between the ground probe rod and, for example, the 

maximum probe rod, a measurable current flows and the Liquipoint 

T switches when it gets covered and uncovered by the liquid. 

Using alternating voltage prevents corrosion of the probe rods and 

electrolytic destruction of the product. The material used for the 

tank walls is not important for measurement because the system is 

designed as a closed potential-free circuit between the probe rods 

and the electronics. There is absolutely no danger if the probe rods 

are touched during operation. 

Liquipoint T FTW31 

Order no. 

Version Process conn. Electronics Length 

Non-Ex 

1000 mm FTW31-A1A3CA4A 

with G 1½” FEW 54 

3 rods 

2000 mm FTW31-A1A3DA4A 


General 

• Sensor length Rod: 1000 / 2000 mm 

• Min. conductivity ≥ 10 μs 

• Cable specification use standard cable (25 Ω per core) 

Electronic insert FEW54 

• Supply voltage 20… 55 VDC or 20… 253 VAC, 50/60 Hz 

• Current consumption 60 mA 

• Peak inrush current max. 2 A, max. 400 μs 

• Pulse frequency approx. 1.5 s 

• Output 

Two potential-free change-over contacts 

(DPDT) 

• Contact load capacity U~ max. 253 V, I~ max. 4 A, 

U = 30 V/4 A; 150 V/ 0.2 A 

• Power consumption < 2.0 W 


• Medium temp. -40… +100 °C 

• Ambient temp. -40… +70 °C 

• Pressure 

-1… +10 bar 

• Ingress Protection IP 66 

• Process connection G 1½” 

Material 

• Electrodes 1.4404 (316L)/insulation: PP; 

weight: 1.4435 (316L) 

• Process connection PPS 

• Housing F16 housing: PBT; hat: PPS; adapter: PBT 

Approvals (Compact-instrument version) 

• WHG approval WHG Z-65.40-360 (DIBt) 



5

Switching unit for connecting to conductive sensors 

Nivotester FTW325 

Level 

• Easy wiring thanks to pluggable terminal blocks 

• Configurable sensitivity range 

• Intrinsically safe signal circuit [EEx ia] IIC for using sensors in 

hazardous areas 

• Alarm relay can be switched as second level relay (SPDT) 

approval 

Product: 

liquids ≥ 5 μs/cm 

Feeding sensors: 

conductive rod or rope sensors 

Application 

The Nivotester FTW325 can be used for overspill protection 

(WHG), pump dry running protection or as a two-point control for 

pumps. Sensors like the Liquipoint T FTW31/32 can be connected 

to the FTW325. A more point detection with up to five measuring 

points is possible by using 3 Nivotester FTW325. 

Function 

The intrinsically safe signal input of the limit switch Nivotester 

FTW325 is galvanically isolated from the mains and the output. 

The Nivotester supplies the conductive probe with alternating 

current via a two-wire or three-wire line and monitors the voltage 

of this line. If the product reaches the switch point of the probe, 

the voltage between the probe and Nivotester is reduced. The 

output relays at the Nivotester switch depending on the set fail-safe 

mode. Two yellow light emitting diodes on the front panel of the 

Nivotester indicate the relay switch status. 

Nivotester FTW325 

Version Housing Power supply 

Non-Ex 

DIN rail mounting, 

2-channel, 22.5 mm 

Order no. 

85… 253 VAC FTW325-A2A1A 

20… 30 VAC, 

20… 60 VDC FTW325-A2B1A 


Input 

• Measured variable 

• Measuring range 

• Input signal 

• Type of protection 

Output 

• Output signal 

• Alarm relay 

• Switching delay 

• Switching power 

of relay contacs 

• Function indicators 

Power supply 

• Supply voltage 

Depending on the setting selected, the limit 

signal is triggered at a minimum or max. level 

Three resistance ranges can be set with DIL 

switches; 0.1… 1.0 kΩ; 1.0… 10.0 kΩ; 

10.0… 200.0 kΩ 

Input galvanically isolated from power 

supply and output 

[EEx ia] IIC 

Relay output: one floating change-over 

contact for the level alarm 

Floating change-over contact for fault 

reporting, can be switched as second level 

relay 

0.5 s; 2.0 s; 6.0 s when relay energized 

U max 

253 V; I max 

2 A; P max 

500 VA at 

cos 0,7; U max 

40 V; I max 

2 A; P max 

80 W 

Light emitting diodes for operation (gn), 

fault (rd), level alarm 1 and level alarm 2 

(ye) light up when level relay is energized) 

85… 253 VAC, 50/60 Hz; 

20… 60 VDC, max. 100 mA 

• Power consumption AC-version maximum 4.5 VA 

DC-version maximum 1.2 VA (at U min 

20 V) 


• Ambient temperature For individual mounting -20… +60 °C; 

for series mounting without lateral spacing 

-20… +50 °C 

• Storage temperature -25… +85 °C (preferably at +20 °C) 

Electrical Connection 

• Connection line Two-core, screening not required 

• Line resistance max. 25 Ω per core 

• Cross-section max. 1 x 2.5 mm 2 or 2 x 1.5 mm 2 

6 Tel: 011 262 8000 Fax: 011 262 8062 


Level limit detection in liquids 

Liquifloat T FTS20 

• Simple and cheap 

• Switching element as proximity or microswitch 

• Different cable materials for different media 

Level 

Application 

The Liquifloat T FTS20 floating switch is an easy and cost-effective 

alternative for level limit detection in liquids. It can be used as 

overspill or pump protection. Different cable materials for acids, 

akalis, oils or wastewater are available. 

Function 

An element built into the floating switch switches when a deviation 

in the horizontal is detected. The switching process is triggered by the 

movement of a steel ball and, depending on the version, is carried out 

by an inductive initiator or a microswitch. The inductive initiator acts 

as a switching output and provides a switching signal to EN 60947- 

5- 6 (NAMUR). The microswitch version is a two-way switch. 

Product: 


Density: 

≥ 0.8 g/cm 3 

Ambient temperature: 

≤ 85 °C 

Ambient pressure: 

≤ 3 bar 

Liquifloat T FTS20 

Order no. 

Electronics Cable Version 

AC/DC 5 m 

With PVC cable material 52010122 

With CSM cable material 52010124 


FTS20 AC/DC 

• Switching element Microswitch with switching ball 

• Switching function Change-over contact 

• Switching voltage AC: max. 250 V; DC: max. 150 V 

• Switching current max. 3 (1) A 

• Switching angle Upper switching point: +25° ±6°; 

lower switching point: +14° ±3°; 

measured to the horizontal 

• Ambient temperature PVC: +5… +70 °C 

PUR and CSM: -20… +85 °C 

• Ambient pressure ≤ 3 bar 

• Density ≥ 0.8 g/cm 3 

FTS20 NAMUR 

• Switching element Inductive proximity switch with 

switching ball, closed when floating 

• Power supply 8.2 V ±2 V 

• Operating current < 1.2 mA unswitched; > 2.1 mA switched 

• Rev. polarity protect. Yes 

• Switching angle Switching points top +12°; 

switching points bottom -12°; 

measured to the horizontal 

• Ambient temperature PVC: +5… +70 °C 

PUR and CSM: -20… +85 °C 

• Ambient pressure ≤ 3 bar 

• Density ≥ 0.8 g/cm 3 

• Approvals TÜV 01 ATEX 1709; 

Ex approval: II 2G EEx ia IIB T5 

Cable 

• Material PVC, CSM: cross section 2 x 0.75 mm 2 

PUR: cross section 2 x 0.50 mm 2 

Areas of application and minimum cable length between fixing 

and floating body: 

• PVC: 

≥ 50 mm suitable for water, dirty water, 

slightly aggressive media 

• PUR: 

≥ 100 mm suitable for fuels, heating oils, 

liquids containing oil 

• CSM: 

≥ 100 mm suitable for acids and alkalis 



7

Capacitive point level switch for solids 

Nivector FTC968 

Level 

• No moving parts 

• Maintenance-free operation 

• With `Protector´: no contact with solids 

• Highly interference-free from electromagnetic 

fields and voltage peaks 

Product: 

bulk solids ≥ 30 mm grain size 

Approval: 

Dust-Ex-Zone 10 

Probe length: 

81 mm 

FTC968 

FTC968 with 

protector 

Product dielectric constant: 

ε r 

≥ 1.6 


-20… +80 °C 


-1… +6 bar 

Application 

The Nivector capacitance level limit switch is suitable for powdered 

and fine-grained solids of all kinds (e.g. plastic granulates materials, 

washing agents, animal feed). Because of its construction materials, 

Nivector is also suitable for use with foodstuffs, such as grain, sugar, 

herbs and spices or semolina. 

Function 

The face of the Nivector unit acts as a sensor. If the solids come 

into contact with the front face, then the electronics change the 

switching mode. Because of the safety switching facility, the 

instrument can be operated in any application with safety. The 

switching mode indication on the instrument via LEDs permits 

straightforward checks from the outside. A screen electrode 

prevents interference through the container walls or lateral solids 

build-up. 

Nivector FTC968 

Version 

Non-Ex 

Accessory 

Protector integral adapter with leakage 

protection 

Order no. 

Electronics 

AC version 918 098-0000 

DC version 918 098-0140 

Order no. 

917 255-1000 


Output 

• Connectable load 

AC: short duration (40 ms): max. 1.5 A 

max. 375 VA at 253 V or max. 31.5 VA 

at 21 V (not protected against short circuit); 

continuous: max. 87 VA at 253 V, max. 7.4 

VA at 21 V, min. 2.5 VA at 253 V (10 mA), 

min. 0.5 VA at 2.1 V (20 mA) voltage 

drop max. 12 V, leakage current max. 4 mA 

DC: short duration (50 ms) max. 0.5 A, max. 

55 V (clocked overload and short-circuit 

protection); continuous: max. 350 mA, 

residual voltage < 3 V, leakage current < 100 μA 

Power supply 

AC: 21… 253 V, 50/60 Hz 

DC: 10… 55 V 


• Ambient temperature -20… +60 °C 

• Material temperature -20… + 80 °C 

• Storage temperature - 25… + 85 °C 

• Operating pressure -1… +6 bar 

• Ingress Protection IP 65/IP 67 according to Standard EN 60529 

Mechanical construction 

• Process connections FTC968: Thread G 1 A with two nuts, 

thread R 1 (DIN 2999) 

• Electrical connection Screwed terminals for max. 1.5 mm² wires 

in cable entry PG 11 (can be rotated as 

required), for 6… 8 mm cable diameter 

8 Tel: 011 262 8000 Fax: 011 262 8062 


Vibronic limit switches for bulk solids 

Soliphant T FTM20 

• No calibration: easy commissioning 

• No seize with coarse-grained material 

• No mechanically moving parts 

• Sensor material 316L 

• Switching status visible from outside 

Level 

Application 

Soliphant T is a robust level limit switch for silos with fine-grained 

or coarse-grained, non-fluidized bulk solids. Soliphant T works 

independently from dielectric constant value and conductivity. The 

various designs means the device has a wide range of applications. 

Product: non-fluidized bulk solids 

Product density: 

≥ 200 g/l 


-1… +25 bar 

Probe length: 

225 mm 


-40… +150 °C 

Function 

A piezoelectric drive excites the vibrating rod of Soliphant T FTM20 

to its resonance frequency. If medium covers the vibrating rod, 

the rodˇs vibrating amplitude changes (the vibration is damped). 

Soliphantˇs electronics compare the actual amplitude with a target 

value and indicate whether the vibrating rod is vibrating freely or 

whether it is covered by medium. The process connection is decoupled 

from the rods’ vibration movements and thus is insensitive 

to vibrations and noise. Control systems, switching units, signalling 

systems (e.g. lamps, horns, PCS, PLC, etc.) can be directly 

connected. Minimum/maximum quiescent current safety can be 

switched at electronic insert. 

Soliphant T FTM20 

Version Electronics Housing Process conn. 

Non-Ex 

AC/DC/ 

Relay 

Polyester 

Thread R 1” 

Thread R 1½” 

Order no. 

FTM20-AA42A 

FTM20-AG42A 


Output parameters 

• Fail-safe mode Minimum/maximum quiescent current 

• Drop-out signal output locked 

• Switching delay 0.5 s when the sensor is covered, 

1 s when the sensor is exposed 

Accuracy 

• Measuring frequency 700… 800 Hz 

• Measured error max. ≤ 5 mm 

• Repeatability < 1mm 

• Start-up setting time 2 s 

Ambient conditions 

• Ambient temp. -40… +70 °C 


• Climate class Tropicalized as per DIN IEC 68 part 2-38 

• Ingress protection IP 66 / IP 67 

• Shock resistance IEC 61010, CSA 1010.1-92, FM3600 

• Vibration resistance DIN 60068-2-27/IEC 68-2-27; 

shock 30 g; vibration 0.01 g 2 /Hz 

• EMC 

Interference emission to EN 61326, Electrical 

Equipment Class B; Interference immunity 

EN 61326 Annex A (Industrial) 

Electronic insert FEM24 (AC/DC with relay output) 

• Power supply 19… 253 VAC 50/60 Hz 

19… 55 VDC 

• Power consumption approx. 1.3 VA 

• Output 

Loads switched via 2 floating change-over 

contacts 

I~ max. 6 A, U~ max. 253 V; 

P~ max.1 500 VA, cos = 1 

P~ max. 750 VA, cos > 0.7 

I– max. 6 A to 30 V 

I– max. 0.2 A to 125 V 



9

Capacitive point level switch for bulk solids 

Minicap FTC260 / FTC262 

Level 

• Adjustment-free commissioning 

• Active build-up compensation 

• Maintenance-free 

approval 

Product: 

Bulk solids 


-1… +25 bar 

Probe length: 

140 mm 

Product dielectric constant: 

ε r 

≥ 1.6 

Application 

The Minicap FTC260 is suitable for level detection of powdery and 

fine-grain bulk solids, such as grain, flour, powdered milk, mixed 

feed, cement, chalk or gypsum – also in dust explosive areas. The 

Minicap comes in two versions: 

- Relay output (SPDT) or 

- PNP output 

Function 

The Minicap is an electronic switch. When the limit is exceeded or 

the load falls below the limit, a switching signal is output. A switch 

housing or signal output device (e.g. lights, horns, programmable 

logic sequencer, stored program control, etc.) can be connected to 

the Minicap. It has an in-built switch-over facility for minimum/ 

maximum safety. It detects the formation of deposits on the probe, 

and compensates for the effects of this so that the switching point 

is maintained. The Minicap comes with factory settings. Other 

sensitivity adjustments can be made on the housing. 

Minicap FTC260 

Length Version Electronics 

140 mm Non-Ex 

DC-PNP 

Universal relay 

Order no. 

FTC260-AA2D1 

FTC260-AA4D1 


Output 

• Output signal 

• Switching delay 

Power supply 


DC-PNP: 

I max 

200 mA, secure against overload and 

shorting, residual voltage at U max 

< 2.9 V 

AC/DC-SPDT: 

AC: I max 

= 4 A, I min 

= 1 mA, U min 

= 6 V, 

U max 

= 253 V, P max 

= 1000 VA 

DC: max. 4 A-30 V, max. 0.2 A-253 V 

0.5 s upon release/covering 

DC-PNP: 10.8… 45 VDC, short pulse up 

to 55 VDC, current input 30 mA (max.), 

reverse polarity protection 

AC/DC-SPDT (relay contact): 

20… 253 VAC or 20… 55 VDC, 

max. current input: 130 mA 

Accuracy 

• Drift 

horizontal ±3 mm, vertical ±6 mm 

• Hysteresis horizontal 4 mm, vertical 7 mm 

• Switchpoint horizontal at centre of probe -5 mm, 

vertical 40 mm 


• Ambient temp. -40… +70 °C (… +60 °C Dust Ex) 

• Protection system IP 66 

• Process temperature -40… +120 °C (… +80 °C Dust Ex) 

• Process pressure -1.0… +25 bar 

General 

• Medium 

Bulk solids with grain size up to 30 mm, 

relative dielectric constant ε r 

≥ 1.6 

• Process connection R 1 DIN 2999/ISO 7 

10 Tel: 011 262 8000 Fax: 011 262 8062 


Paddle point level switch for solids 

Soliswitch FTE30 

• Simple operation 

• Proven principle 

• Slip clutch 

Level 

Application 

The universal paddle level limit switch FTE30 is used as a full, 

empty and demand alarm on silos containing solids. Its construction 

and materials make the unit suitable for use in the food industry. 

Certification to dust Zone 10 and dust Zone 20 provides more 

application possibilities. 

Product: bulk solids ≤ 50 mm grain size 


0.5… +1.8 bar 


-20… +80 °C 

Measurement Principle 

A reduction gear and synchronous motor rotate the shaft and 

paddle. If the paddle is stopped by material covering it, the hinged 

motor in the housing moves from the rest position to the switch 

position. This movement operates two switch contacts – the first is 

for external level indication and the second switches the power off 

to the motor. When the medium level falls below the paddle, the 

hinged motor returns to its rest position, the two contacts switch to 

normal operation, and the paddle starts to rotate. Intermittent loads 

that operate against or even in the same direction of rotation are 

evened out by using a slip clutch. 

Soliswitch FTE30 

Order no. 

Version Power supply Length 

Standard 230 VAC 75 mm FTE30-AA11 


Power supply 


230 VAC (relay 250 VAC) 

20… 28 VDC (relay 250 VAC) 

• Cable entry PG 13.5 


• Mechanical load max. 60 N on the shaft; 

max. 1500 N on strengthened shaft 

• Load in the rope max. 1500 N 

• Ambient temperature 0.5… 1.8 bar 

• Omgevingstemp. -20… +60 °C 

• Degree of protection IP 65 with closed lid; IP 20 with open lid 

• Vibration protection IEC 654-3, dimensions V.S.1 

(v < 3 mm/s, 1 < f < 150 Hz) 

• Process temperature -20… +80 °C 

• Solids weight 100 g/l 

• Grain size Up to 50 mm 


• Material 

Housing: Plastic with 30 % fiber glass; 

shaft: Stainless steel 1.4305; 

paddle: Stainless steel 1.4305; 

O-ring seal: NBR; 

shaft seal: NBR Perbunan; 

rope extension: Stainless steel 1.4401 with 

stainless steel 1.4305 weight; 

hinged paddle: Stainless steel 1.4435; 

protection tube/cover: Stainless steel 1.4301 

• Shaft bearing High power friction bearing, maintenance-free 

• Shaft resolution approx. 1 rotation per minute 

• Process connection Threaded boss – thread G ½” BSP 

• Electrical connection Plug-in screw terminals 2.5 mm 2 solid core, 

1.5 mm 2 core with ferrule 



11

Pressure 

Pressure transducer for absolute and 

gauge pressure measurement 

Cerabar T PMC131 

• Reliable with long-term stability 

• Vacuum and overload stability 

• Will withstand corrosion and abrasion 

• Simple assembly 

• Integrated 4… 20 mA electronics 

Application 

The Cerabar T PMC131 allows measurement of absolute and 

gauge pressure in liquids, vapors and gases with a highly accurate, 

long-term stability and overload resilience capacitance ceramic sensor. 

The ceramic sensor is very resistant to corrosion and abrasion. 

Function 

The measurement pressure causes a slight deflection of the sensor 

diaphragm. The change in proportion to pressure is measured and is 

available as a 4 up to 20 mA output signal. The pressure transducer 

comes either with a DIN 43650/ISO 4400 plug or cable entry for 

connection to an amplifier supply system (e.g. a RN221N power 

supply from E-direct). 

Product: 

liquids, vapors and gases 

Overload stability: 

up to factor 40 


-20… +100 °C 

Measuring cell: 

Dry (oil-free) ceramic cell 

Measuring range (limits): 

-1… +40 bar 

Accuracy: 

< 0.5 % 

Cerabar T PMC131 

With pressure gauge 

connection 

With plug 

Without 

linearization 

protocol 

Measuring range, 

Unit, Overload 

0… 6 bar, 

0… 600 kPa, 

40 bar 

0… 10 bar, 

0…1 MPa, 

40 bar 

Order no. 

PMC131-A11F1A1R 

PMC131-A11F1A1S 


Output 

• Output signal 4… 20 mA/two-wire 

Accuracy 

• Long-term stability < 0,15 % FS 1) per annum 


• Material temperature -20… +100 °C 


• Protection IP 65 


• Process diaphragm Al 2 

O 3 

(aluminium oxide ceramic) 

• Electrical connection 4-pole plug connection acc. to ISO 4400 

with cable connection M16 

• Process connection G ½ A according to DIN 16288, G ½ A 

acc. to ISO 228, hole Ø 6 mm or 11.4 mm 

Power supply U b 


11… 30 VDC at 5 % wave 

1) 

FS = Full Scale = Measuring range 

12 Tel: 011 262 8000 Fax: 011 262 8062 


Pressure transducer for absolute and 

gauge pressure measurement up to 400 bar 

Cerabar T PMP131 

• Vacuum and overload stability 

• Reliable with long-term stability 

• Front connected process connection 

• Integrated 4… 20 mA electronic 

Pressure 

Application 

The Cerabar T with its polysilicon sensor allows measurement of 

absolute and over-pressure in liquids, vapors and gases. The process 

connection comes with internal or front connecting diaphragm. The 

front connecting version is especially suited to highly contaminated 

or viscous media. For the Cerabar PMP131 both the switch point 

and hysteresis in the range of 1.5… 20 % can be adjusted. 

Product: liquids, vapors and gases 

Function 

The measurement pressure causes a slight deflection of the sensor 

diaphragm. The change in proportion to pressure is measured and 

is available as a 4 to 20 mA output signal. The pressure transducer 

comes either with a DIN 43650/ISO 4400 plug or cable entry for 

connection to an amplifier supply system (e.g. a RN221N-A1 power 

supply from E-direct). 

Output: 

4… 20 mA 


-25… +70 °C 

Measuring range (limits): 

0 up to 400 bar 

Accuracy: 

< 0.5 % 

Cerabar T PMP131 

Version Meas. range, Unit, Overload 

0… 6 bar, 0… 600 kPa, 

24 bar 

0… 10 bar, 0… 1 MPa, 

Non-Ex, with 

40 bar 

analog output 

0… 40 bar, 0… 4 MPa, 

and plug 

160 bar 

0… 160 bar, 0… 16 MPa, 

600 bar 

Order no. 

PMP131-A1101A1R 

PMP131-A1101A1S 

PMP131-A1101A1X 

PMP131-A1101A71 


Output 

• Output signal 4… 20 mA/two-wire or switch output PNP 

Accuracy 

• Long term stability < 0.15 % FS 1) per annum 


• Material temperature -25… +70 °C 

• Ambient temp. -25… +70 °C, in Ex-area -25… +65 °C 

• Protection IP 65 m plug; 

IP 68 with cable entry (5 m or 25 m) 


• Process connection 1.4435 

• Electrical connection 4-pole plug connection according to 

ISO 4400 with M16 cable connection or 

5/25 m fixed cable 

• Process connection G ½ A according to DIN 16288 or 

G ½ A according to DIN 3852-A, 

SS 316L, front connecting 

Power supply U b 

• Analog output 

Non-Ex: 12… 30 VDC at 5 % wave 

Ex-version: open-circuit voltage < 26 V; 

short circuit current < 100 mA; 

power consumption < 0.8 W 

1) 

FS = Full Scale = Measuring range 



13

Flow switch for monitoring of mass flow 

Flowphant T DTT31 

Flow 

• 3 buttons on-site parameterizing or 

via ReadWin ® 2000 configuration software 

• On-site display 

• High reproducibility and long-term stability 

• Large turndown 

• Practically no pressure loss 

DESINA 

compliant 

Medium: 



0… +100 bar (at 20 °C) 

Measuring range: 

0.03… 3 m/s 

Medium temperature: 

-20… +85 °C 

Application 

Flow switch for monitoring, displaying and measuring relative mass 

flow rates of liquid media in the range from 0.03… 3 m/s. 

Application examples: 

Monitoring cooling water circulation systems of pumps, turbines, 

compressors and heat exchangers, monitoring CIP cleaning processes 

and monitoring lubrication systems. 

Function 

The device measures the mass fl ow of a liquid medium with the 

calorimetric measurement method. The calorimetric measuring 

principle is based on cooling a heated temperature sensor. Heat 

is removed from the sensor by forced convection due to medium 

fl owing by. The extent of this heat transfer depends on the medium 

velocity and the difference in temperature between the sensor and 

medium (King’s law). The higher the velocity or the mass fl ow of the 

medium, the greater the temperature sensor cooling. 

Flowphant T DTT31 

Order number 

Process connection Connector Output 

Thread ISO 228 

M12 1 x PNP DTT31-A1A111AE2AAB 

G ½ A 

Accessory 

Order number 

5 m cable with M12 counter connector 51005148 

Configuration kit, USB-connection TXU10-AA 


Input 

• Measurement range 0… 100 %; resolution 1 % 

0.03… 3 m/s for liquids 

Output 

• Output signal 1 PNP or 2 x PNP or PNP with analog 

output for flow and temperature 

• Voltage drop PNP ≤ 2 V 

• Overload protection automatic testing 

Performance characteristics 

• Reference conditions according to DIN IEC 60770/61003 

• Measured error switch point and display 0.2 % 

• Long-term drift ≤ 0.5 % per year under refer. operating cond. 

• Sensor reaction time 6… 12 s 

• Response time switch output 100 ms 


• Medium temperature -20… +85 °C 


• Degree of protection IP 66 

Power supply 

• Supply voltage U b 

18… 30 VDC, reverse polarity protection 

• Current consumption without load < 100 mA at 24 VDC 

General 

• EMC 

Interference emission as per IEC 61326 Series, 

class B electrical equipment; interference 

immunity as per IEC 61326 Series, appendix A 

(indust. use) and NAMUR Recomm. NE 21 

• Operating elements 3 buttons or PC and ReadWin ® 2000 

• Materials 

Process conn., protect. tube and housing 316L 

Approvals 

• Desina compliant 

14 Tel: 011 262 8000 Fax: 011 262 8062 


Temperature switch for measurement, monitoring and 

control of process temperatures 

Thermophant T TTR31 

• Three buttons for local set-up, via ReadWin ® 2000 configuration 

software or FieldCare 


• Stainless steel housing 316L 

• Fast response times without reduced tip 

Temperature 

DESINA 

compliant 

Application 

Temperature switch for the monitoring, display and control of 

process temperatures with threads or couplings. 

Function 

A platinum sensor located at the measuring tip changes its 

resistance value depending on the temperature. This resistance 

value is recorded electronically. The conversion of the resistance 

value into a temperature measurement signal is defined by the 

international standard IEC 751. 

Temperature range: 

-50… +150 °C 

Immersion length (mm): 

50, 100, 200 

Display: 

4 digit, 14 segments display 

with color change 

Response time: 

< 1.0 s (T 50 

); < 2.0 s (T 90 

) 


Order no. 

Output Process Conn. Length 

PNP with 

100 mm TTR31-A1C111AE2CAB 

G ½ A, 316L 

analog output 

200 mm TTR31-A1C111AE2EAB 

Accessory 

Configuration kit, USB-connection 

Order number 

TXU10-AA 


Supply voltage 

• Power supply U b 

12… 30 VDC 

• Current consumption Without load < 60 mA, reverse 

polarity protection 

Output 

• Output signal 1 or 2 x PNP or PNP with 4… 20 mA 



• Measured error Electronics max. 0.2 K or 0.16 % sensor Class A 

• Long-term drift ≤ 0,1 % per year 

• Sensor response time T 50 

= < 1.0 s; T 90 

= < 2.0 s 

• Analog output Non-linearity ≤ 0.2 % 

Sensor 

• Sensing element 1 x Pt100, four-wire 

• Tolerance Class A to IEC 751 


• Diameter 

6 mm 



• Protection IP 65 (complete housing) 

Materials 

Process connection and protection pipe 

316L/R a 

≤ 0.8 μm; housing 316L 

Operation 

• Operating elements 3 buttons or PC and software 

Approvals 




15

Temperature 

Temperature switch for measurement, monitoring and 

control of process temperatures in hygienic design 


• Hygienic process connections 

• Three buttons for local set-up, via ReadWin ® 2000 configuration 

software or FieldCare 


• Stainless steel housing 316L 


Application 

Desina compliant temperature switch for monitoring, display and 

control of process temperatures in hygienic applications. 

DESINA 

compliant 

Function 

A platinum sensor located at the measuring tip changes its 

resistance value depending on the temperature. This resistance 

value is recorded electronically. The conversion of the resistance 

value into a temperature measurement signal is defined by the 

international standard IEC 751. 


-50… +150 °C 


50, 100, 200 

Display: 

4 digit, 14 segments display 

with color change 


< 1.0 s (T 50 

); < 2.0 s (T 90 

) 



PNP with 

analog output 

Order no. 

TRI-CLAMP ® 50 mm TTR35-A1C111DL1BAB 

100 mm TTR35-A1C111DL2CAB 

Accessory 

Configuration kit, USB-connection 

Order no. 

TXU10-AA 


Supply voltage 

• Power supply U b 

12… 30 VDC 

• Current consumption Without load < 60 mA, reverse 

polarity protection 

Output 

• Output signal 1 or 2 x PNP or PNP with 4… 20 mA 



• Measured error Electronics max. 0.2 K or 0.16 % sensor Class A 

• Long-term drift ≤ 0.1 % per year 

• Sensor response time T 50 

= < 1.0 s; T 90 

= < 2.0 s 

• Analog output Non-linearity ≤ 0.2 % 

Sensor 

• Sensing element 1 x Pt100, four-wire 



• Diameter 

6 mm 



• Protection IP 65 (complete housing) 

Materials 

Process connection and protection pipe 

316L/R a 

≤ 0.8 μm; housing 316L 

Operation 

• Operating elements 3 buttons or PC and software 

Approvals 

• 3A 


16 Tel: 011 262 8000 Fax: 011 262 8062 


Compact thermometer with M12 plug-in connector, 

Pt100 or 4… 20 mA 

Easytemp TMR31 

• PC programmable transmitter 

with 4… 20 mA output or Pt100 sensor 

• Highly accurate sensor and electronics 

• M12 plug-in connector with IP 66 


• Sensor length selectable 

Temperature 

Application 

The Easytemp TMR31 is used in tanks and pipes. Due to its flexible 

adjustment to the process, TMR31 is the solution for simple 

measuring tasks in all industries. 

Function 

The compact thermometer consists of a complete sensor with 

Pt100 class A, a transducer (optional) and a housing with various 

process connections. There are also other process connections 

available as accessories. The built-in electronics can be programmed 

via a PC (configuration kit TXU10-BA needed) using the M12 plugin 

connector and convert the Pt100 input signal into a temperature 

linear 4… 20 mA signal. 


-50… +200 °C 


40… 600 (Ø 6 mm) 

Accuracy: 

< 0.08 %, Pt100 class A 


< 1 s (T 50 

), < 2 s (T 90 

) 


Order no. 


50 mm TMR31-A1AABBAB1AAA 

4… 20 mA G ½” 

100 mm TMR31-A1AABBAC1AAA 


Sensor 

• Sensing element 1 x Pt100 

• Process temperature -50… +150 °C (200 °C extension neck) 

• Material 

316L 

• Diameter 

6 mm 

• Sensor diameter 40… 600 mm selectable (please specify) 

• Response time T 50 

= ≤ 1.0 s; T 90 

= ≤ 2.0 s 

• Max. pressure 30 bar (at 100 mm and 20 °C, depending 

on process connection) 

Process connection 

• Version 

G ½”, 316L; without (flange welding boss 

or compression fitting needed) 

Transmitter housing 


• Electrical connection M12-plug-in connector 

• Material 304 

Output characteristics 

• Output signal with electronics 4… 20 mA, 20… 4 mA 

without electronics Pt100 

• Signal on alarm Undershooting measuring range: linear 

decrease to 3.8 mA; exceeding measuring 

range: linear increase to 20.5 mA; sensor break, 

sensor short-circuit: ≤ 3.6 mA or 21.0 mA 

Power supply 

• Supply voltage U b 

= 10… 35 V DC 

Accuracy 

• Response time 1 s 

• Measuring error 0.1 K or 0.08 % 



17

Temperature 

Compact thermometer with M12 plug-in connector, 

for hygienic applications, Pt100 or 4… 20 mA 


• Hygienic process connections, surface finishing R a 

≤ 0.8 μm 

• PC programmable transmitter with 4… 20 mA output or Pt100 

sensor 


• M12 plug-in connector with IP 66 

• Compact thermometer from stainless steel 

Application 

The Easytemp TMR35 thermometer with hygienic design is used in 

pipes and tanks. The typical application is in plants or machinery for 

food & beverage production. 

Function 

The compact thermometer consists of a complete sensor with 

Pt100, class A, a transmitter and a housing with various process 

connections. There are also other process connections available 

as accessories. The built-in electronics can be programmed via a 

PC (configuration kit TXU10-BA needed) using the M12 plug-in 

connector and converts the Pt100 input signal into a temperature 

linear 4 to 20 mA signal. 


-50… +200 °C 


30, 50 (Ø 6 mm) 

Accuracy: 

< 0.08 %, Pt100 class A 


< 1.0 s (T 50 

), < 2.0 s (T 90 

) 

Easytemp TMR35 (4… 20 mA output) Order no. 

Process conn. Length Meas. range 

4… 20 mA, 

TRI-CLAMP ® 30 mm 

0… +100 °C TMR35-A1AADBAA1AAA 

4… 20 mA, 

DIN11851 50 mm 

0… +150 °C TMR35-A1BAPLAB1AAA 


Sensor 

• Sensing element 1 x Pt100 


• Process temperature -50… +150 °C 

• Material 

316L 

• Diameter 

6 mm 

• Sensor diameter 30 mm, 50 mm 

• Response time T 50 

= ≤ 1.0 s; T 90 

= ≤ 2.0 s 

• Max. pressure 30 bar (at 100 mm and 20 °C, depending 

on process connection) 

Process connection 

• Conical metal-to-metal connection, with G ½”; TRI-CLAMP ® 

flange 1” 1-½”, ISO 2852 DN 25/38; Dairy connection 

DIN 11851 DN 25; Varivent ® Ø 68 mm for DN 32/125 

Transmitter housing 


• Electrical connection M12-plug-in connector 

• Material 304 

Output characteristics 

• Output signal with electronics 4… 20 mA, 20… 4 mA 

• Signal on alarm 

Power supply 


Accuracy 

• Response time 

without electronics Pt100 

Sensor break; Sensor short-circuit: 

≤ 3.6 mA or 21.0 mA 

U b 

= 10… 35 VDC 

Electronics 1 s 

• Measuring error 0.1 K or 0.08 % 

18 Tel: 011 262 8000 Fax: 011 262 8062 


Temperature transmitter for resistance thermometers (RTD) 

and for thermocouples (TC) 

iTemp TMT127/187 and 128/188 

• Fixed measuring ranges for three- and four-wire resistance 

thermometer and thermocouples including linearization 

• Two-wire technology, 4… 20 mA analog output 

• High accuracy (in total ambient temperature range) 

• Fault indication on sensor short or open circuit to 

NAMUR NE 43 

• Galvanic isolation 

Temperature 

TMT187/188 

Application 

The temperature transmitter are alternatively available as head 

transmitter (TMT187/188) or as rail mounting (TMT127/128). 

The TMT187/188 temperature head transmitters can be installed 

in the form B sensor head. They have a fixed measurement range 

and have a 4… 20 mA analog output. 

Approval: 

ATEX II (1) G EEx ia 

Measuring range: 

fi xed, selectable 

Accuracy: 

< 0.08 % (Pt100) 

RTD sensors: 

3-wire 

TMT127/128 

Input: TMT127/187 resistance thermometer (RTD) or 

TMT128/188 thermoelements (TC) 

Function 

The TMT127/187 RTD temperature transmitter is a two-wire 

transmitter with an analog output and a three- or four-wire 

resistance thermometer input. 

The TMT128/188 TC temperature transmitter is a two-wire 

transmitter with an analog output and thermocouple input. 

iTemp TMT127/128/187/188 

Order no. 

Rail mounting transmitter Meas. range 

RTD 

0… 100 °C TMT127-A31FEA 

TMT127 

Non-Ex 

3-wire 

0… 200 °C TMT127-A31FHA 

TMT128 TC Non-Ex 0… 150 °C TMT128-AJABA 

Head transmitter 

RTD Non-Ex 0… 100 °C TMT187-A31FEA 

TMT187 

3-wire Ex 0… 100 °C TMT187-B31FEA 

0… 100 °C TMT188-AKAAA 

TMT188 TC Ex 

0… 1200 °C TMT188-AKAHA 


Output 

• Output signal 4… 20 mA transmission is linear to 

temperature and resistance 

• Max. load (V power supply -12 V)/0.022 A 

• Input current required ≤ 3.5 mA 

• Current limit ≤ 23 mA 

• Switch on delay 4 s (during power up I a 

= 3.8 mA) 

• Response time 1 s 

Failure signal (fault monitoring) 

• Measurement range undercut Linear drop to 3.8 mA 

• Exceeding measurement range Linear rise to 20.5 mA 

• Sensor breakage/ 

Sensor short circuit ≥ 21.0 mA 

Electrical connection 

• Power supply TMT127/128: U b 

= 12… 35 V, polarity 

protected; Ex U b 

= 12… 30 V 

TMT187/188: U b 

= 8… 35 V, polarity 

protected Ex U b 

= 8… 30 V 

• Galvanic isolation û = 3.75 kV 

• Allowable ripple U ss 

≤ 5 V bei U b 

≥ 13 V, f max. 

= 1 kHz 

Accuracy 

• Influence of power supply ≤ ±0.01 %/V deviation from 24 V 

• Load influence ≤ ±0.02 %/100 Ω 

• Pt100 0.2 K or 0.08 %; 

• Thermocouple type J and K: typ. 0.5 K; N: typ. 1.0 K; 

S and R: typ. 2.0 K 




19

Registration 

Paperless recorder for display, recording and communication 

Ecograph T RSG30 

• Low installation depth saves space and money 

• Reliable data archiving with internal memory and separate 

CompactFlash card (mechanically locked) 

• No data loss even in event of power failure 

• Available worldwide due to integrated Web server 

function for remote monitoring 

• Integration (option): It is possible to calculate an intermediate, 

daily, monthly, yearly or total value (13-digit, 64 bit) 

Recording: 

1 s up to 12 h 

Input: 

Current, voltage and temperature 

can be directly connected 

Installation depth: 

171 mm 

Data medium: 

CF-card up to 512 MB 

Network integration and 

remote data transmission: 

Ethernet, RS232/RS485 

(modem) and USB 

Display: 

LC color graphic display 

Application 

Ranges of application cover many sectors and branches of industry. 

Ecograph T is used to display and record critical parameters in 

production processes, e.g. to monitor: quality and quantity in the 

water and wastewater industries, processes in power stations, food 

and milk industry processes, tank and level, temperature in metal 

working or cold storage and transport. 

Function 

Data recording on internal memory and CompactFlash card. 

Measured values are shown on the LC color graphic display. Up to 

14 internal limit values can be assigned to the channels freely. Limit 

value violations are recorded and additionally can be put out on up 

to 4 relays. 

Ecograph T RSG30* 

Version Input Interface 

with 3 Standard 

universal 

inputs Standard 

Standard 

Standard 

with 6 

universal RS232/485, Ethernet 

with integrated 

inputs 

Webserver 

* Including 256 MB memory card. 

Order no. 

RSG30-A1A3ABC1 

RSG30-A1A3ABA1 

RSG30-B1A3ABA1 

RSG30-B1B3ABA1 


Input values (universal input) 

• Measured variable Current: 0… 5/20 mA, 4… 20 mA; 

Voltage > 1 V: 0 5/10 V, ± 10 V, ± 30 V; 

Voltage ≤ 1 V: ± 1 V, ± 150 mV; 

Resistance thermometer (RTD): Pt100, Pt500, 

Pt1000, Cu50, Cu53, Cu100, Pt46, Pt50; 

Thermocouples: Typ J, K, T, N, L, D, C, B, S, R 

• Measured error ± 0.1 % of measuring range 

• Scan rate all channels within 100 ms 

• Resolution for all ranges: ≥ 18 Bit 

Input values (digital input) 

• Number of inputs 3 

• Input frequency max. 25 Hz 

• Pulse length min. 20 ms 

• Input current max. 2 mA 

• Input voltage max. 32 V 

Output values (auxillary voltage output) 

• Output voltage approx. 24 V, max. 28 V 

• Output current max. 250 mA, short-circuit proof 

Power supply 

• Supply voltage 100… 230 VAC (±10 %) / 24 VAC/DC 

• Power consump. 100… 230 V : max. 30 VA / 24 V : max. 24 VA 

• Connection data USB port (standard); Ethernet interface option); 

interface/comm. Serial RS232/RS485 interface (option) 

Human interface 

• Saving data Selectable memory cycle: 1s/2s/3s/4s/5s/10s/ 

15s/20s/30s/1min/2min/3min/4min/5min/ 

10min/30min/1h/6h/12h 

• Internal memory: Program memory: 2 MB Flash (non-volatile), 

main memory: 2 MB SRAM, data buffering 

and RTC-buffering with lithium cell (replace 

after 10 years) 

• External memory: Supp. CF mem. cards: 32/64/128/256/512 MB 

20 Tel: 011 262 8000 Fax: 011 262 8062 


Digital indicator with mathematical 

functionalities and linearization 

RIA45 

• 5-digit LCD including bargraph and color alteration 

• 1 or 2 channel device with mathematical functionalities 

• Intrinsically safe universal inputs 

• Wide range power supply 

• Linearization, differential pressure calculation 

• Log function/memory for alarms as well as min./max. values 

Components 

Display: 

LCD – 2 lines; black/white/yellow; alarm modus: 

color alteration into red; toggle function between channels 

Outputs: 

2 relays, 1 /2 analog outputs 

Inputs: 

1 / 2 universal inputs measuring 

current, voltage, resistance, 

temperature (RTD, TC) 

Dimensions: 

96 x 48 x 175 mm 

Functionalities: 

Linearization, mathematical 

calculations (+/-/avg), 

differential pressure package 

Field of application 

Equipped with extensive functionalities and approvals the device 

RIA45 suits into application in all industries and branches, e.g. 

chemicals, ship building as well as water and waste water. Typical 

applications are particularly displaying and monitoring process 

values, e.g. where over fill protection is necessary. 

As panel display the RIA45 is mainly installed in control rooms, 

switch cabinets or laboratories. 

Device functionalities 

The indicator detects, evaluates and displays analogue process values. 

The integrated loop power supply provides power supply to two-wire 

sensors. Universal inputs allow measuring of current and voltage as 

well as providing a direct connection to RTDs and thermocouples. 

For purposes of process control, limit points can be monitored and 

corresponding integrated relays can be activated. The dual line LC 

display has been developed especially for the process industries 

and provides a wide range of information which is programmable. 

Upon pushing the quick information button the display manually or 

automatically switches through the various values (process, calculated 

or memory-values). In the event of a failure the colour of the display 

alternates to signal an alarm, which is easily visible from distance. The 

integrated application package “differential pressure” allows a quick, 

convenient and easy initiation in differential pressure applications. 

RIA45 

Version 

Non-Ex 

Input / Output 

1x universal / 1x analog 

1x universal / 1x analog 

+ 2 relay 

Order no. 

RIA45-A1A1 

RIA45-A1C1 


Input Parameters 

• Input 1/2 x universal input 0…20 mA, 4…20 mA; 

Over range: up to 22 mA, 0…10 V, 2…10 V, 

0…5 V, 1…5 V, ± 1 V, ± 10 V, ± 30 V, ± 100 mV, 

± 150 mV, 30…3000 Ω; Pt 100 acc. to IEC751, 

GOST, JIS1604, Pt 500 and Pt 1000 acc. to IEC751; 

Cu 100, Cu 50, Pt 50, Pt 46, Cu 53 acc. to GOST; 

Ni 100, Ni 1000 acc. to DIN43760; Type J, K, 

T, N, B, S, R acc. to IEC584; Type U acc. to 

DIN43710; Type L acc. to DIN43710, GOST; 

Type C, D according to ASTM E998 

• Linearization Linearization of input and calculated values 

(up to 32 linearization points supported) 

• Tolerance current 0,05 % of measurement range 

Output Parameters 

• Analog output 1/2 x analog output, 0…20 mA, 4…20 mA; 

0…10 V, 2…10 V, 0…5 V; short-circuit proof, 

I max 

< 25 mA 

• Loop power supp. 24V DC (+15%/-5%), max 25 mA 

• Status Output 1 x Open Collector 

Structural Design 

• Electr. connection Coded, pluggable spring clip, 2,5 mm²; 

power supply with screw clamp 

Display and User Interface 

• Display LCD 2-lines; black/white/yellow; alarm 

mode: color alteration into red; toggle function 

• Operation via 3 buttons and/or via configuration software 

Power Supply 

• Power supply 20 V… 230 VAC/DC 



21

Components 

Digital display module with measurement 

amplifier supply and linearization 

Display RIA251/RIA261 

• Three-key operation 

• Highly legible five-digit color display 

• For connection to 4… 20 mA circuits 

• RIA261 with rear illumination without additional power supply 

and trend bargraph 

Voltage drop: 

RIA251: < 2 V; 

RIA261: < 2.5 V 

Protection: 

RIA251: IP 65; RIA261: IP 66 

RIA261 

RIA251 

Display: 

5 digit LC display 

Accuracy: 

< 0.1% of display range 

Application 

The RIA251/261 process display modules monitor measurement 

signals and display them with high resolution and accuracy. They 

permit universal installation, e.g. RIA251 in switch cabinets, control 

rooms, with laboratory equipment, plant and equipment facilities, 

e.g. RIA261 in fixed or mobile rigs. 

Function 

The process display module is directly connected to the 4… 20 mA 

measurement circuit. Parameters can easily be set for measurement 

range, decimal point and offset by three buttons on the face of the 

unit. Parameter setting is possible during operation. The reading 

is given on a five-digit, seven-segment LC display. The fieldhousing 

version (RIA261) additionally has a backlit display. 

RIA251/261 

Order no. 

Product Version 

RIA251 Standard (Version for non-Ex areas) RIA251-A1 

Standard (Version for non-Ex areas), 

RIA261 with mounting kit 

RIA261-A12 

With Ex-approval and mounting kit RIA261-B12 


Input 

• Input 

4… 20 mA (reverse-polarity protection) 

• Measured parameter Current 

• Max. input current 150 mA (short circuit current) 

• Accuracy 

< 0.1 % of full scale 

• Temperature drift < 0.01 %/10K 

Output 

• HART ® 

User interface 

• Display 

The display allows transmission of the 

HART ® transmission protocol 

5-digit LC display 

RIA251: 17 mm 

RIA261: 26 mm with rear illumination and 

trend bargraph in 10 % steps); 

range of display: -19999… +99 999 

3 buttons 

• Operation 

Power supply 

• Cable entry (RIA261) 2 x M20x1.5 

• Supply 

via 4… 20 mA loop supply 

Accessories 

Approvals 

• Ex approval 

Wall and stand pipe mounting kit with 

tension tape installation, 1.4301 stainless 

steel (only for RIA261) 

RIA261: ATEX II 2(1) G EExia IIC T5/T6 

22 Tel: 011 262 8000 Fax: 011 262 8062 


Digital process display with a 7-digit display, alternating 

pump control and integration 

RIA452 

• Input with two-wire loop power supply, optionally 

intrinsically safe 

• Pump control function 

• Monitoring function via status inputs 

• Digital output with integration 

Components 

Display: 

7-digit/14 segment 

multicolored 

Dimensions: 

standard 96 x 96 mm 

Function: 

linearization, pump control 

function, integration 

Approval: 

ATEX II (1) GD [EEx ia] IIC 

optional 

Relays: 

4 or 8 (optional) 

Output: 

optional 1 x analog output 

Application 

The RIA452 process display interprets and displays all kind of process 

signals with high resolution and accuracy. It can also be used to 

automate control tasks via limit value or via analog or digital output. 

Function 

Up to eight presettable relays monitor the measured value for any 

infringement (undershooting/overstepping) of the preset limit 

values. Further operation modes for the relays are sensor- or device 

errors, batch- and pump control functions (e.g. alternating pump 

control). The scalable analog output offers wide options to transfer 

the input signal: zoom function, linearization, offset, inverting and 

signal conversion (conversion in-/output). The optional impuls 

output offers the possibility to create integrated process values. 

Simple setting up using a serial interface and PC programme as well 

as manual front end set up are available. 

RIA452 

Version 

Non-Ex 

current input 

Order no. 

8 limit values, pulse 

input and integration RIA452-A113A11A 


Input 

• Analog input 1 x 0/4… 20 mA (impedance 5 Ω) 

• Universal input 0/4… 20 mA, 0… 5 mA, ±40 mV, 

±150 mV, ±600 mV, ±2,5 V, 

0… 10 V, 0… 5 V, ±10 V, 30… 3000 Ω 

resistance thermometer Pt100/500/1 000, 

Cu50/100, Pt50 

thermocouple types J, K, T, N, B, S, R to 

IEC 581-1; D, C to ASTME998; 

L to DIN 43710, GOST 

• Digital input 4 x, max. 10 Hz 

• Accuracy 

0.1 % of the measurement range end value 

Output 

• Transmitter supply 24 VDC, 250 mA, on option intrinsically 

safe 1 x 24 VDC, 22 mA in addition 

• Analog output 1 x 0/4… 20 mA, 0/2… 10 VDC; 

• Output impedance 

• Digital output 

• Linearity 




Power Supply 


max. ≤ 600 Ω 

1 x open collector passive 12.5 kHz 

4 x relays (change-over contact), 250 VAC/ 

30 VDC, 3A; expandable to 8 relays (option) 

≤ 0.1 % of the measurement range end value 

90… 250 VAC, 50/60 Hz 

20… 36 VDC/ 20… 28 VAC, 50/60 Hz 



23

Components 

Universal process transmitter with setpoint relay and analog output 

RMA421 

• All standard measurement signals can be connected 

directly (U, I, RTD, TC) 

• Flexible set point monitor with 2 changeover contacts 

• Scalable current or voltage output 

• Integrated loop power supply for connected sensors 

• RS232 interface for set up and measured value output 

• LC display and push buttons for front end set up 

Input: 

universal input 

Display: 

5 digit LC display 

Function: 

linearization 

Limit function: 

optional 2 relays 

Output: 

optional 1 x analog output 

Interface: 

RS 232 

Application 

Process transmitter RMA421 enables use as e.g. temperature 

transmitter, signal converter or contactor. The compact rail 

constructions are especially suited for the installation in control 

cabinets, for process control and laboratory equipment. 

Function 

Two presettable set points monitor the measured value for any 

deviation from the preset conditions. This opens up a number of 

possibilities for direct process control. The scalable analog output 

offers an instrument from which a matched signal can be obtained 

and transmitted to other instrumentation for further analysis. 

Simple setting up using a serial interface and PC programme as 

well as manual front end set up are available. Via integrated HART ® 

communication connection the HART ® transmitters can be 

parametrized in field from the control room. 

RMA421 

Order no. 

Power supply Version 

90… 253 VAC With analog output RMA421-A11A3A 


Input 

• Input 

1 universal input (0/4… 20 mA, 

±20 mA, ±100 mV, ±10 V, 0… 1 V, 

0… 10 V); thermocouple (TC) types: 

T, J, K, N, R, S, B to DIN EN 60584; U, L 

to DIN 43710; W3, W5 to ASTME 988-96; 

RTD types: Pt100 (Pt500, Pt 1000) to 

DIN EN 60751, Ni100 to DIN 43760 

Possible using max. 32 points 

• Linearization 

Output 

• Transmitter supply 24 VDC ± 20 %, 30 mA 

• Analog output Opt. 0/4… 20 mA, 20… 4/0 mA or 

0… 10 V; actions to NE 43 

• Limit function Opt. 2 relays, 1 change-over contact 

250 VAC, 5 A 


• Protection Front IP 65, terminals IP 20 


• Dimensions H x W x D (mm): 110 x 45 x 112 

• Electrical connection Keyed, plug on screwed terminals, size 

1.5 mm 2 solid core, 1.0 mm 2 multicore 

with ferrule 

User interface 

• Display 

5-segment LED display (6 mm) and LED for 

limit, operation und alarm condition 

• Display range -19999… +99 999 

• Operation 3 keys and/or software 

Power supply 


90… 253 VAC, 50/60 Hz, optional 

18… 36 VDC, 20… 28 VAC, 50/60 Hz 

24 Tel: 011 262 8000 Fax: 011 262 8062 


Power supply with optional HART ® diagnostics 

RN221N 

• Loop power supply, wide range power supply, 

flexible power source 

• Bi-directional HART ® transmission with SMART transmitters 

• Communication sockets for HART ® sensor setting up 

• Compact DIN rail housing 

• HART ® diagnostics via status bit 

Components 

Approval: 

ATEX II (1) GD [EEx ia] IIC 

Diagnostics: 

via HART ® status bit or NE43 

HART ® signal: 

bidirectional 

Relay output: 

optional for HART ® diagnostics 

Application 

The RN221N barrier with power supply is used for the galvanic 

isolation of 4… 20 mA signal current circuits. It is also applied for 

intrinsically safe operation of 2-wire transmitters and to remove 

earth loops. The unit offers a sensor monitoring function as an 

option. This function monitors the HART ® signal or the current 

loop for faults. The status of the measuring point is reported over an 

alarm relay. 

Function 

The active barrier RN221N supplies the sensor with auxiliary 

energy and transmits the measuring signal to the output. 

The optional, intrinsically safe input circuit, conforms to the 

requirements for ignition classification ATEX II (1) GD. 

RN221N 

Version 

Standard version, without 

supervisory relay 

HART ® diagnosis, with 

supervisory relay 

Standard 

Ex version 

Standard 

Ex version 

Order no. 

RN221N-A1 

RN221N-B1 

RN221N-A3 

RN221N-B3 


Input 

• Power requirement 16.7 V ± 0.2 V (at I = 20 mA) 

• Open circuit voltage 26 V ± 5 % 

• Internal resistance 328 Ω 

• Linearity ≤ 0.15 % 

• Load influence ≤ 0.1 % 

Intrinsically safe input option 

• Open circuit voltage 27.3 V 

• Short circuit current 84.1 mA 

• Power consumption 576 mW 

• Capacitance 86 nF [EEx ia] IIC; 

683 nF [EEx ia] IIB, [EEx ia] IIA 

• Inductance 5.5 mH [EEx ia] IIC; 

20 mH [EEx ia] IIB, [EEx ia] IIA 

Output 

• Open circuit voltage 24 V ± 10 % 

• Load (impedance) 0… 700 Ω (without commun. resistance) 

• Galvanic isolation To all other current circuits 

Power supply 

• Power supply 20… 250 VDC/AC, 50/60 Hz 

• Power consumption Without HART ® diagnosis max. 2.5 W 

with HART ® diagnosis max. 5.0 W 

Ambient conditions 


Display and operating level 

• Display elements LED yellow in series to current output: 

Illuminates, when output current 

circuit is closed 

Remote commun. 

• HART ® commun. Signals are transmitted bi-directionally 

• Commun. resistance Resistance for HART ® communication 250 Ω 

built in. Please take note of voltage drop! 



25

Components 

Power supply 

RNS221 

• Two-channel supply for two 2-wire sensors or transmitters 

• Galvanic isolation between all circuits 

• LED status indicators 

• Wide range power supply, 20 to 250 VAC/DC, 50/60 Hz 

• Top hat (35 mm) DIN rail mounted housing to EN 50 022-35 

Application 

The RNS221 power supply supplies two 2-wire sensors or 

galvanically isolated transmitters. This is only valid for nonhazardous 

areas. Using the HART ® communication sockets allows 

bi-directional communication to SMART transmitters (for setup, etc.) 

Function 

The power supply has two galvanically isolated outputs for 

supplying voltage to sensors and transmitters. A built-in 

communication resistance (R = 250 Ω) enables bi-directional 

HART ® communication with SMART sensors and transmitters. 

HART ® signal: Bidirectional 

Diagnostics: 

Via HART ® status bit or NE43 

Relay output: 

Optional for HART ® diagnostics 

The system includes two channel power supply, 24 VDC, 30 mA, 

with LED status display for electrical supply of sensors and 

transmitters. All circuits are galvanically isolated from each other. 

The unit is constructed of 35 mm top hat DIN rail mounting. 

RNS221 

Version 

Non-hazardous area, 20… 250 VDC/AC 

Order no. 

RNS221-A1 

Technical data 

Output 

• Output signal Two channels for transmitter power supply, 

open circuit voltage 24 V ±10 %, with 

integrated HART ® communication 

resistance R = 250 Ω for each output 

• Output current circuit Maximum 30 mA; short circuit current: both 

channels continuously short circuit protected 

• Galvanic isolation Between all circuits 

Power supply 

• Power supply 

Wide range power supply, 

20… 250 VAC/DC, 50/60 Hz 

• Power consumption P ≤ 5 W 

• Current requirement (Input current limitation) I max 

/I n 

< 15 

• Power failure To EN 61 000-4-11 




• Climatic class To EN 60 654-1 Class B2 

• Ingress protection NEMA 1 

• EMC To IEC 61326, transmission Class A, 

immunity to IEC 61326 industrial environ. 

• Over voltage protect. To EN 61 010-1, Category II, installation 

protection fuse ≤ 10 A 


• Terminals Power and signal connections, keyed 

plug-on screw terminal, 16 AWG solid 

wire; 18 AWG for stranded wire with 

ferrule. Communication connection 

sockets, 2 mm on front panel of unit 

Display 

• 2 yellow illuminated LEDs with connected outputs; 1 green 

illuminated LED with main power connection 

26 Tel: 011 262 8000 Fax: 011 262 8062 


Surge arresters 

HAW56x 

• Security against external surges 

• Modular construction 

• In-line terminals included 

• Module exchange without opening circuit 

• Application in Ex areas (HAW560Z, HAW562Z, HAW569B) 

• High function security 

Components 

HAW561 

HAW560 

HAW569 

HAW562 

Application 

HAW561/561K 

The modules are single pole overvoltage protection units used to 

limit high voltage surges (classification C). For application in low 

voltage instrumentation supply cables or in low voltage main and 

sub distribution. 

HAW560/562/560Z/562Z and HAW569 

The surge arrester is used for limiting high voltages in signal cables 

of 0/4… 20 mA, PROFIBUS PA and PFM signal. For limiting 

intrinsically safe circuits are used the HAW560Z and HAW562Z. 

Design: 

modular construction for DIN 

rail, fieldhousing (HAW569) 

Approval: 

ATEX II 2 (1) G 

Signal: 

Power supply 24 VDC/AC, 230 VAC, current 0/4… 20 mA, 

PROFIBUS PA, RS485, PROFIBUS DP 

HAW560 and HAW565 

The surge arrester is used for limiting high voltages in bus systems 

like PROFIBUS DP and RS485. 

Function 

Protection of supply or instrumentation as well as signal cables 

and components from overvoltage surges, that can be induced, 

for example, by distant lightning strikes or switch sequences. 

HAW561 – Surge arrester 

Order no. 

Product 

Version 

HAW561 115/230 VAC/DC 51003570 

HAW560 – Surge arrester module carrier Order no. 

Product 

Version 

HAW560 Non-Ex 51003571 

HAW560Z Ex 51003574 

HAW562/565 – Surge arrester module Order no. 

Product 

Version 

HAW562 30 VDC, Non-Ex 51003572 

HAW562Z 30 VDC, Ex 51003575 

HAW565 5 VDC 51003573 

HAW569 – Surge arrester 

Order no. 

Product 

Version 

HAW569A 30 VDC, Non-Ex HAW569-A11A 

Technical Data 561 561K 562 562Z 565 

HAW 569A* 569B* 

Power supply 115/230 24/48 30 VDC 30 VDC 5 VDC 

VAC/DC VAC/DC 24 VDC* 24 VDC* 

Max. current 125 A 125 A 1 A 500 mA 100 mA 

consump. in the unit 

500 mA* 

to be protected (I N 

) 

Leakage current (8/20) 20 kA 10 kA 10 kA 10 kA 10 kA 

per line (i sn 

) 5 kA* 5 kA* 

Protection peak at i sn 

Line/Line ≤ 130 V ≤ 60 V ≤ 25 V 

≤ 65 V* ≤ 55 V* 

Line/PG < 1.5 kV < 450 kV ≤ 65 V ≤ 1 kV ≤ 20 V 

at 5 kA; at 5 kA ≤ 650 V* ≤ 1100 V* 

Response times 

Line/Line 

≤ 1 ns ≤ 1 ns ≤ 1 ns 

Line/PG ≤ 25 ns ≤ 25 ns ≤ 1 ns ≤ 100 ns ≤ 1 ns 

Limit frequency 

7.0 MHz 6.0 MHz 100 MHz 

14.0 MHz* 7.0 MHz* 

Imped. length/line 2.2 Ω 1.8 Ω 1 Ω 

Capacitance 

Line/Line 0.5 nF 1.1 nF 50 pF 

≤ 400 pF* ≤ 850 pF* 

Line/PG 0.9 nF 2 pF 50 pF 

≤ 20 pF* ≤ 15 pF* 

* Deviant values for HAW569A and HAW569B 



27

Contact Details: 

Website: 

www.za.endress.com 

Tel: 011 262 8000 

Fax: 011 262 8062 

E-Mail: 

e-direct@za.endress.com 

direct delivery! 

24 hour delivery dispatch on receipt of order for stockable products 

48 hour delivery dispatch on receipt of order for non-stockable products 

South Africa 

Endress+Hauser South Africa (Pty) Ltd 

5 Commerce Crescent West 

Eastgate Ext 13, Sandton 

Tel: 011 262 8000 

Fax: 011 262 8062 

www.za.endress.com 

EC 004E/21/en/04.10 

LL/INDD CS2

E-direct Catalogue - Endress+Hauser South Africa

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