R117/2019-A-NL1-23.04 Rev. 0
OIML Certificate
OIML Member State The Netherlands
Number R117/2019-A-NL1-23.04 revision 0 Project number 2502536 Page 1 of 4
Issuing authority NMi Certin B.V. Person responsible: M.Ph.D. Schmidt
Applicant and CZAR Metric System Private Limited Manufacturer Plot No.A-451 MIDC Industrial Area, Mahape Navi Mumbai 400710 Maharashtra, India
Identification of the A electronic calculating and indicating device used as a part of Fuel, AdBlue, LPG and LNG dispensers.
certified type Type: CZ series
Characteristics See page 2 and further
This OIML Certificate is issued under scheme A.
This Certificate attests the conformity of the above identified type (represented by the samples identified in the OIML Type Evaluation Report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML):
R 117:2019 "Dynamic measuring systems for liquids other than water"
Accuracy class 0,5/1,0/1,5
This Certificate relates only to the metrological and technical characteristics of the type of measuring instrument covered by the relevant OIML International Recommendation identified above. This Certificate does not bestow any form of legal international approval.
Important note: Apart from the mention of the Certificate's reference number and the name of the OIML Member State in which the Certificate was issued, partial quotation of the Certificate and of the associated OIML Type Evaluation Report(s) is not permitted, although either may be reproduced in full.
Issuing Authority
NMi Certin B.V., OIML Issuing Authority NL1 4 May 2023
NMi Certin B.V.
Thijsseweg 11
2629 JA Delft
The Netherlands
T +31 88 636 2332
Certification Board
This document is issued under the provision that no liability is accepted and that the applicant shall indemnify third-party liability.
The notification of NMi Certin B.V. as Issuing Authority can be verified at www.oiml.org
This document is digitally signed and sealed. The digital signature can be verified in the blue ribbon at the top of the electronic version of this certificate.
OIML Certificate
Number R117/2019-A-NL1-23.04 revision 0 Project number 2502536 Page 2 of 4
The conformity was established by the results of tests and examinations provided in the associated reports:
No. NMi-2502536-01 dated 27 October 2021 that includes 119 pages.
No. NMi-2502536-03 dated 4 May 2023 that includes 34 pages.
Characteristics of the measuring instrument
In Table 1 the general characteristics of the measuring instrument are presented.
The construction of the measuring instrument is recorded in the Documentation folder no. DF2502536-2.
The CZ series is an electronic calculating and indicating device which is used as part of fuel, AdBlue, LPG and LNG dispensers.
The CZ series can have a maximum of 4 main displays and a maximum of 8 delivery nozzles connected to it.
A maximum of four nozzles can be connected to each calculating/indicating device's main display, only one nozzle out of the four connected to a single display can be simultaneously operated.
The meter pulse cable is a shielded cable with RS-485 communication protocol.
The approved power supply for the calculator is 230 VAC 50 Hz.
The Point of Sales (POS) can be connected to the device via a shielded POS cable. The approved communication protocol for the POS cable is RS-485.
Approved PCB drawings and parts list of the electronic calculating and indicating device can be found in documentation folder no. DF2502536-2.
Optionally, a printer can be connected to the dispenser as follows:
Printer mounted on the dispenser door, powered and communication through the dispenser;
Printer mounted on the side of the dispenser, powered and communication through the dispenser;
Remote printer connected via the POS communication cable.
Table 1 General characteristics of the electronic calculating/indicating device type CZ series
| Maximum volume indication | 6 digits(4 integers and 2 decimals) |
| Maximum unit price | 5 digits(3 integers and 2 decimals) |
| Maximum price to pay | 7 digits(5 integers and 2 decimals) |
| Environmental classes | E1/M2/H3(condensing humidity) |
| Ambient temperature range | -25℃/+55℃ |
| Power supply | 230VAC50Hz |
| Approved input | Pulser communication cable via RS-485(shielded) |
| Approved output | POS communication cable via RS-485(shielded) |
| Pulser | Magnetic encoderCZ-MGE-XXRS-485 communication protocolOutput signal256 pulse/revolution |
OIML Certificate
OIML Member State The Netherlands
Number R117/2019-A-NL1-23.04 revision 0
Project number 2502536
Page 3 of 4
| Maximum number of nozzles | 8 |
| Maximum number of main indicating device | 4 |
| Maximum number of nozzles connected to each indicating device | 4 |
Table 2 Software identification of the electronic calculating and indicating device type CZ series
| Used in Dispenser type | Board | Firmware version | Hash code |
| Fuel and LPG dispenser | CPU Board | CZ-CPU_V1.1 | 10f85e8d0d3add237df9c1066014cc550fcfb53174ae3e446ab6c116ab504a9f |
| CZ-CPU_V2.0 | 414f8d096a229fb0d4823f91a9b4761e369a8e468389755b4d3544f2c0b0d08b | ||
| Main Display cum CPU Board | CZ-DIS_V1.1 | 1f2eda31bcef24f9427819d38460d1c47b0f4310f1227aae18c823b4d8634f3 | |
| CZ-DIS_V2.0 | d7a87432a2748161363ecdcd809d8c6c481953ff54f80bef77df88902c5bca8a | ||
| Pulser Board | CZ-MGE_V1.1 | 48680bb9633709cc27e18822df23f5b762831e83d946893fab5382aec716363c | |
| Keypad Display Board | CZ-DKP_V1.1 | 8d0ea94278cafd43a4d949c8b1431c02d89665af02090496e4a3b7760181034a |
| Used in dispenser type | Board | Firmware version | Hash code |
| LNG dispenser | CPU Board | LNG CZ-CPU_V2.2 | ad345a06221995f83b3faf6289c16a9996cea16ee7f5e05816943a17daf23473 |
| Main Display cum CPU Board | LNG CZ-DIS_V2.2 | 23c41eaa883465355ab629e56facc82cec186d7f6ae10ebbd8aada746cb52d99 |
Software version verification of the electronic calculating and indicating device type CZ series
The software versions and checksums can be displayed on the LCD display by following the below procedure:
On the alphanumeric keypad on the dispenser press SETUP $ \rightarrow $ P2 $ \rightarrow $ enter unique password by a user with sufficient rights $ \rightarrow $ ENTER this puts the dispenser in maintenance mode.
Then press 5 $ \rightarrow $ 1 $ \rightarrow $ 1 $ \rightarrow $ 1 for CPU board
or 5 $ \rightarrow $ 1 $ \rightarrow $ 1 $ \rightarrow $ 2 for Main Display board
or 5 $ \rightarrow $ 1 $ \rightarrow $ 1 $ \rightarrow $ 3 for Pulser board
or 5 $ \rightarrow $ 1 $ \rightarrow $ 1 $ \rightarrow $ 4 for Keypad Display board
OIML Certificate
OIML Member State The Netherlands
Number R117/2019-A-NL1-23.04 revision 0 Project number 2502536
Page 4 of 4
Table 3 Legally relevant parameter list of the electronic calculating and indicating device type CZ series
| Process code | Process code name | Value / range |
| 122 | Unit Rate | 5 digits (XXX.XX) |
| 212 | Product Grade | 3 Characters (XXX) |
| 24521 | Pre-Mask Value | 60(mL) |
| 2412 | Decimal Setting | 0~3(digits) |
| 24511 | High Flow Cutoff | 250(mL) |
| 243 | No Pulse No Fuel | 30(sec) |
| 51 | Log | Transaction, Calibration Change, Unit Rate Change, Density Change, Error |
| 311 | View Last Cal | View K Factor |
| 214 | Date & Time | dd:mm:yy,hh:mm:ss |
| 511 | PCBA Soft Detail | View board details |
| 52 | Model Info | View model details |
| 521 | Serial Number | View serial number of Dispenser |
Production location
The electronic calculating and indicating device is produced at one of the following production locations:
CZAR Metric System Private Limited, Plot No. A-451, Central Road, MIDC Industrial Area, Mahape Pin code 400710, Maharashtra India.
CZAR Metric System Private Limited, Plot No.C-541, MIDC Industrial Area, Pawne Navi Mumbai 400705, Maharashtra, India.
Certificate history:
This revision replaces the previous version.
| Revision | Date | Description of the modification |
| 0 | 4 May 2023 | Initial issue |