Test certificate - Mettler Toledo

T e s t c e r t i f i c a t e
Number TC7978 revision 0
Project number 11200439
Page 1 of 6
Issued by
In accordance
with
Manufacturer
In respect of
NMi Certin B.V.
Paragraph 8.1 of EN 45501:1992/AC:1993, OIML R60:2000, OIML R76:2006.
Mettler-Toledo AG
Im Langacher 44
CH 8606 Greifensee
Switzerland
A weighing module, tested as a part of a weighing instrument.
Manufacturer : Mettler-Toledo AG
Brand name : OneForAll MFR with digicell board MFR
Type : ..MBA….., ..MPD….., ..MMA….. *
Characteristics Max : 800 g up to and including 35,1 kg
e : ≥ 0,01 g
d : ≥ 0,001 g
Accuracy class :
II
or III
In the description number TC7978 revision 0 further characteristics are described.
Description and The load cell is described in the description number TC7978 revision 0 and
documentation documented in the documentation folder TC7978-1, appertaining to this
test certificate.
Remarks Summary of the test involved: see Appendix number TC7978 revision 0.
*
For all subtypes see drawing TC7978/0-01.
Issuing Authority NMi Certin B.V. Notified Body number 0122
8 March 2012
C. Oosterman
Head Certification Board
NMi Certin B.V.
Hugo de Grootplein 1
3314 EG Dordrecht
The Netherlands
T +31 78 6332332
certin@nmi.nl
www.nmi.nl
This document is issued under the provision
that no liability is accepted and that the
applicant shall indemnify third-party liability.
The designation of NMi Certin BV.as Notified
Body can be verified at http://
ec.europa.eu/enterprise/newapproach/nando/
Parties concerned can lodge objection
against this decision, within six weeks
after the date of submission, to the
general manager of NMi (see
“Regulation objection and appeal
against decisions of NMi” www.nmi.nl)
Reproduction of the complete
document only is permitted
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D e s c r i p t i o n
Number TC7978 revision 0
Project number 11200439
Page 2 of 6
1 General information about the weighing module
All properties of the weighing module, whether mentioned or not, may not be in conflict with the
standard mentioned in the test certificate.
1.1 Essential parts
Mechanical:
Description Drawing number Rev. Remarks
Outline drawing 603 7978/0-02 0 Mechanical
Exploded view 603 7978/0-03 0 Mechanical
Cross-sectional drawing 603 7978/0-04 0 Mechanical
Outline drawing 8002 7978/0-05 0 Mechanical
Exploded view 8002 7978/0-06 0 Mechanical
Cross-sectional drawing 8002 7978/0-07 0 Mechanical
Outline drawing 35001 7978/0-08 0 Mechanical
Exploded view 35001 7978/0-09 0 Mechanical
Cross-sectional drawing 35001 7978/0-10 0 Mechanical
Electrical:
Description Drawing number Rev. Remarks
Cell board OneForAll(750R) 7978/0-11 0 Drawing (1 page)
Parts list (4 pages)
Digicell board MFR 7978/0-12 0 Drawing (2 pages)
Parts list (5 pages)
Scale Module Standard Interface (SMOSI) 7978/0-13 0 14 pages
Pegasus Discrete MFR: Block diagram 7978/0-14 0 -
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D e s c r i p t i o n
Number TC7978 revision 0
Project number 11200439
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Cable:
- The weighing module is provided with a UART serial interface and a USB interface. The cable
length is limited to:
- 0,3 m for the UART serial interface (not shielded);
- 5,0 m for the USB interface (shielded).
1.2 Essential characteristics
Weighing module characteristics:
Maximum capacity 800 g 8200 g 35,1 kg
Fraction P i 0,8 1,0
Verification scale interval e 0,01 g
Actual scale interval d 0,001 g
Maximum number of scale
intervals
Maximum partial weighing
ranges
n 82000 divisions
(per partial weighing range)
Depending on the configuration
n 35100 divisions
(per partial
weighing range)
Temperature range +10°C / +30 °C +5 °C / +40 °C
Tare T -100% for single interval instruments
T -Max 1 for multi interval instruments
Software:
The electronical load cell is equipped with software as described in TC8039. The software
identification can be displayed on the attached terminal.
Load cell characteristics:
Maximum capacity (E max ) 800 g 8200 g 35,1 kg
Humidity Class NH SH
Temperature range +10 °C / +30 °C +5 °C / +40 °C
Accuracy Class B B or C
Maximum number of load
cell intervals (n)
Ratio of minimum LC
Verification interval
Y = E max / V min
Ratio of minimum dead load
output return
Z = E max / (2 * DR)
82000 35100
82000 35100
82000 35100
The characteristics for n max and Y can be reduced separately. Z is proportional or equal to n max
Each produced load cell is supplied with information about its characteristics.
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D e s c r i p t i o n
Number TC7978 revision 0
Project number 11200439
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Power supply: 5,0 V DC ± 5%
Power supply current: 200 mA.
1.3 Essential shapes
The weighing module is built according to drawings:
- “Outline drawing 603”, drawing number 7978/0-02;
- “Exploded view 603”, drawing number 7978/0-03;
- “Cross-sectional drawing 603”, drawing number 7978/0-04;
- “Outline drawing 8002”, drawing number 7978/0-05;
- “Exploded view 8002”, drawing number 7978/0-06;
- “Cross-sectional drawing 8002”, drawing number 7978/0-07;
- “Outline drawing 35001”, drawing number 7978/0-08;
- “Exploded view 35001”, drawing number 7978/0-09;
- “Cross-sectional drawing 35001”, drawing number 7978/0-10;
- “Platform dimensions”, drawing number 7978/0-15.
The maximum platform dimensions are described in drawing “Platform dimensions”, drawing
7978/0-15.
The data plate is secured against removal by sealing or will be destroyed when removed. The data
plate mentions at least the information and markings as described in the OIML R60 and R76
documents. In the countries where it is mandatory the load cell should bear this test certificate
number: TC7978.
Securing:
The sealing shall be described in the approval certificate.
Both loadcell board and Digicell board MFR can be identified by unique ID numbers stored
permanently on the particular EEPROM. These numbers cannot be erased or changed. Any exchange
of the boards can be identified by reading these numbers.
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A p p e n d i x
Number TC7978 revision 0
Project number 11200439
Page 5 of 6
Tests according OIML R60:2000 performed for this test certificate:
Test Institute type, version, remarks
Temperature test and repeatability
(20, 30, 10 and 20 C)
Temperature test and repeatability
(20, 40, 5 and 20 C)
Temperature effect on minimum dead load
output (20, 30, 10 and 20 C)
Temperature effect on minimum dead load
output (20, 40, 5 and 20 C)
NMi Certin B.V.
NMi Certin B.V.
NMi Certin B.V.
NMi Certin B.V.
800g-B82-NH
8200g-B82-NH
35,1kg-B35-SH
800g-B82-NH
8200g-B82-NH
35,1kg-B35-SH
Creep (20, 30 and 10 C) NMi Certin B.V. 800g-B82-NH
8200g-B82-NH
Creep (20, 40 and 5 C) NMi Certin B.V. 35,1kg-B35-SH
Minimum dead load output return
(20, 30 and 10 C)
Minimum dead load output return
(20, 40 and 5 C)
Barometric pressure effects at room
temperature
NMi Certin B.V.
NMi Certin B.V.
NMi Certin B.V.
800g-B82-NH
8200g-B82-NH
35,1kg-B35-SH
800g-B82-NH
Damp heat, steady state NMi Certin B.V. 35,1kg-B35-SH
Warm-up time NMi Certin B.V. 800g-B82-NH
Span stability test NMi Certin B.V. 800g-B82-NH
Additional tests for load cells equipped with electronics:
Radiated immunity NMi Certin B.V. 800g-B82-NH
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A p p e n d i x
Number TC7978 revision 0
Project number 11200439
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Tests according OIML R76:2006 performed for this test certificate:
Test Institute type, version, remarks
Eccentricity NMi Certin B.V. 800g-B82-NH
Discrimination NMi Certin B.V. 35,1kg-B35-SH
Stability of equilibrium NMi Certin B.V. 8200g-B82-NH
Tilting NMi Certin B.V. 800g-B82-NH
Tare NMi Certin B.V. Not applicable according A.4.6.1
Endurance NMi Certin B.V. 800g-B82-NH
Electromagnetic susceptibility NMi Certin B.V. 800g-B82-NH
Relevant parts of the checklist NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
Power voltage variation NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
Short time power reduction NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
Electrical bursts NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
Surges NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
Electrostatic discharges NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
Conducted immunity D11 NMi Certin B.V. 8200g-B82-NH in combination
with ICS-indicator
500