FlowCERT

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Installation Limitation of Performance Correct installation and the positioning of the Speedy sensor is essential for maintaining measurement accuracy and the reliability of a Speedy velocity unit, and there are a number of factors which will limit the performance of the Speedy Velocity Sensor. 1. Temperature – the speedy velocity sensor should only be operated in the temperature range stated in the Product Specification section of this Chapter, operation outside of this temperature range will have a significant effect on the accuracy of velocity measurement. 2. Measurement Medium – the speedy velocity sensor uses ultrasonic Doppler technology and therefore relies on the transmitted signal being reflected back to the sensor from particles (solids) contained in the media, it is therefore not suitable for the measurement of velocity in media that do not contain particles e.g. clean water. Speedy should only be used in medium that is compatible with the materials used in the construction of the speedy, resistance and compatibility lists for the materials used are available from Pulsar on request. Highly abrasive medium may lead to mechanical wear of the sensor and in the case of high velocities or large particle size this may result in permanent damage to the sensor. 3. Hydraulic disturbance – correct installation, of the Speedy sensor, in the vicinity of bends, profile changes, gates/slides and any form of hydraulic ramp/jump are essential to ensure accuracy of measurement. Changes to direction of flow (streaming or reverse/surge flows) must also be avoided at the point of measurement. Page 24
Positioning of the Speedy sensor The required mounting distances between any hydraulic disturbance and the installation point are as follows: Change of profile h < 2.5% of Diameter, L>min. 3 x Diameter h > 2.5% of Diameter, L = distance to where standing wave does not exist anymore. Curves and Bends for v < 1m/s (3fps): a < 15° L> min. 3 x Diameter a < 45° L> min. 10 x Diameter a < 90° L > min. 20 x DN for v > 1m/s (3fps): a > 15° L = distance until the surface of the water reaches laminar flow Page 25
Page 1: FlowCERT INSTRUCTION MANUAL
Page 5 and 6: Contents Chapter 1 Start Here…...
Page 7 and 8: Common Parameters..................
Page 11 and 12: Chapter 1 Start Here… Congratulat
Page 13 and 14: Functional Description The FlowCERT
Page 15 and 16: Product Specification Physical Wall
Page 17 and 18: Chapter 2 FlowCERT Installation Pow
Page 19 and 20: Dimensions Wall mount The dimension
Page 21 and 22: Cable Entry There are 6 cable gland
Page 23 and 24: Speedy velocity sensor please refer
Page 25 and 26: Preparation for Operation Before sw
Page 27 and 28: Chapter 3 DUET Transducer DUET Tran
Page 29 and 30: Mounting Plate Fixings The DUET is
Page 31 and 32: Chapter 4 Speedy Velocity Sensor Fo
Page 33: Speedy Hardware Specification Suppl
Page 37 and 38: Step or obstruction h < 2.5% of Dia
Page 39 and 40: Page 29
Page 41 and 42: FlowCERT Parameter list for Speedy
Page 43 and 44: Chapter 5 How To Use Your FlowCERT
Page 45 and 46: Program Mode This mode is used to s
Page 47 and 48: Menu Keys The menu keys have the fo
Page 49 and 50: Note You can tell which part of the
Page 51 and 52: Using the RS232 Serial Interface Th
Page 53 and 54: Parameter Defaults Factory Defaults
Page 55 and 56: Chapter 6 Quick Set-up Guide This q
Page 57 and 58: For devices which do not match any
Page 59 and 60: Wait ….. Parameter Default Descri
Page 61 and 62: Parameter Set Value Description P21
Page 63 and 64: Point of Measurement The transducer
Page 65 and 66: Calculations ABSOLUTE If the flow c
Page 67 and 68: Example 1 ‘V’ Notch Weir In thi
Page 69 and 70: BS3680 Flumes (P700 = 2) Point of M
Page 71 and 72: U-Throated Flume ABSOLUTE If the fl
Page 73 and 74: To program the FlowCERT for Example
Page 75 and 76: RATIOMETRIC If the flow calculation
Page 77 and 78: To program the FlowCERT for Example
Page 79 and 80: RATIOMETRIC BS3680 Rectangular Weir
Page 81 and 82: Rectangular Channel Calculations AB
Page 83 and 84: Round Pipe If the flow calculation
Page 85 and 86:
V-notch angle weirs, the head is me
Page 87 and 88:
Chapter 7 Parameter Guide This chap
Page 89 and 90:
Relays Menu Relay 1 Relay 2 Relay 3
Page 91 and 92:
OCM Menu PMD Setup Dimensions Calcs
Page 93 and 94:
mA Output 1 Menu Range Operation Se
Page 95 and 96:
Echo Processing Menu Xdr. 1 Status
Page 97 and 98:
Device Comm Menu RS232 Setup RS485
Page 99 and 100:
Parameter Listing and Descriptions
Page 101 and 102:
P106 Span This parameter should be
Page 103 and 104:
P125 High mA Trim This parameter al
Page 105 and 106:
Alarms P210, 220, 230, 240, 250 =1
Page 107 and 108:
Alarm ID Description Setpoints 6= I
Page 109 and 110:
Pumps P210, 220, 230, 240, 250 = 2
Page 111 and 112:
Pump Duty Description 8= First On F
Page 113 and 114:
Control P210, 220, 230, 240, 250 =
Page 115 and 116:
P215, P225, P235, P245, P255 Relay
Page 117 and 118:
Common Parameters P216, P226, P236,
Page 119 and 120:
P584 Maximum Temperature Date This
Page 121 and 122:
If P700 = 3 (BS 3680 Weir) Select f
Page 123 and 124:
P706 Volume Units Select the Volume
Page 125 and 126:
P713 Dimension D This parameter is
Page 127 and 128:
P717 Exponent This parameter is use
Page 129 and 130:
Velocity The calculation of flow us
Page 131 and 132:
P685 Peak width Sets the evaluation
Page 133 and 134:
Average Flow P863 Average Flow This
Page 135 and 136:
Auxiliary P810 Units This parameter
Page 137 and 138:
P822 Totaliser Decimal Places This
Page 139 and 140:
Operation P831 mA 1 Mode This param
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mA Output 2 Parameters Range P890 m
Page 143 and 144:
Trim P896 mA 2 Low Trim If the devi
Page 145 and 146:
Stability Parameters Damping Dampin
Page 147 and 148:
P884 Peak Percent This parameter is
Page 149 and 150:
P928 Serial Number This parameter w
Page 151 and 152:
Watchdog You can check how many tim
Page 153 and 154:
P974 Start Week This parameter will
Page 155 and 156:
P979 End Month This parameter is us
Page 157 and 158:
P144 Call Type This parameter deter
Page 159 and 160:
The choices for you to enter are as
Page 161 and 162:
P995 Keys Test You should press eac
Page 163 and 164:
Chapter 8 Troubleshooting This sect
Page 165 and 166:
Parameter Record APPLICATION Operat
Page 167 and 168:
Relay 4 Parameter Details Entered V
Page 169 and 170:
Dimensions Parameter Details Entere
Page 171 and 172:
P773 Flow Breakpoint 22 -1.000 P774
Page 173 and 174:
Auxiliary Parameter Details Entered
Page 175 and 176:
Trim Parameter Details Entered Valu
Page 177 and 178:
System Information Parameter Detail
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