R139/2018-A-NL1-23.02 Rev. 0
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-23.02 revision 0 Project number 2502536 Page 1 of 6
Issuing authority NMi Certin B.V. Person responsible: M.Ph.D. Schmidt
Applicant and Manufacturer CZAR Metric System Private Limited Plot No. A-451 MIDC Industrial Area, Mahape Navi Mumbai 400710 Maharashtra, India
Identification of the CNG Dispenser
certified type
Manufacturers mark: Czar
Type: CZC-******[1]
Characteristics See following pages
This OIML Certificate is issued under scheme A.
This Certificate attests the conformity of the above identified type (represented by the sample(s) identified in the OIML Type Evaluation Report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML):
R 139:2018 "Compressed gaseous fuel measuring systems for vehicles"
Accuracy class 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.
This certificate and supporting reports comply with the requirements of OIML-CS-PD-07 clause 6.2.
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.
[1] Where " $ \star $ " can be a number or a letter for representing different configurations of the dispenser.
Issuing Authority
OIML Certificate
Number R139/2018-A-NL1-23.02 revision 0 Project number 2502536 Page 2 of 6
The conformity was established by the results of tests and examinations provided in the associated report:
- No. NMi-2502536-04 dated 4 May 2023 that includes 27 pages.
Characteristics of the CNG Dispenser
CNG Dispenser CZC-******* series
In Table 1 the general characteristics of the CNG dispenser are presented.
The construction of the CNG dispenser is recorded in the Documentation folder no. CF2502536-1.
Table 1 General characteristics of the CNG dispenser
| Minimum-maximum flow rate | Within the flow ranges of the applicable measurement sensor see table 5 and/or 6 |
| Minimum measured quantity | 1kg |
| Maximum filling pressure of the gas | Within the maximum pressure of the applicable measurement sensor see table 5 and/or 6 |
| Maximum storage pressure | 500Bar |
| Accuracy class | 1.5 |
| Environmental classes | E1/M2 |
| Ambient temperature range | -25-+55℃; condensing humidity |
| Product temperature range | Within the product temperature ranges of the applicable measurement sensor see table 5 and/or 6 |
| Intended for the measurement of | Compressed Natural Gas(CNG) |
| Power supply voltage | 185-245V AC;50Hz |
Each CZC-******* dispenser consists at least of:
One measurement transducer (Coriolis mass meter CNGmass (E+H) or Coriolis mass meter CNG 050 (Emerson)).
One electronic calculating/indicating device (CZ series calculator).
Optionally, a printer may 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.
The calculating/indicating device can have a maximum of 4 main displays, allowing it to configure and control 4 nozzles (meters), out of which 4 nozzles (meters) can be simultaneously operated.
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-23.02 revision 0 Project number 2502536 Page 3 of 6
A maximum of one nozzle (meter) can be connected to each calculating/indicating device's main display.
Approved input - Mass meter communication cable via RS-485
Approved output - POS communication cable via RS-485
All communication cables (POS and Mass meter communication) should be shielded cables.
The characteristics of the mentioned parts of the dispenser are presented at table 2 and higher.
Essential parts of the CZC-***** series CNG dispensers
The conformity of the following parts was established by the results of tests and examinations provided in the associated reports:
Part:
Calculating/indicating device
Producer:
CZAR Metric System Private Limited
Type:
CZ Series
Documentation folder:
DF2502536-2
No. NMi-2502536-01 dated 27 October 2021 that includes 119 pages;
Reports:
No. NMi-2502536-03 dated 4 May 2023 that includes 34 pages.
Table 2 General characteristics of the 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 |
| Maximum number of nozzles | 4 |
| Maximum number of main indicating device | 4 |
| Maximum number of nozzles connected to each indicating device | 1 |
| Approved input | Mass meter communication cable via RS-485(shielded) |
| Approved output | POS communication cable via RS-485(shielded) |
| Mass Meter communication | RS-485 communication protocol |
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-23.02 revision 0 Project number 2502536 Page 4 of 6
Table 3 Software identification of the calculating/indicating device type CZ series
| Board | Firmware version | Hash code |
| CPU Board | CNG CZ-CPU_V2.2 | ad345a06221995f83b3faf6289c16a9996cea16ee7f5e05816943a17daf23473 |
| Main Display cum CPU Board | CNG CZ-DIS_V2.2 | 23c41eea883465355ab629e56facc82cec186d7f6ae10ebbd8aada746cb52d99 |
Software version verification of the calculating/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.
Table 4 Legally relevant parameter list of the calculating/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) |
| 243 | No flow 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 |
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-23.02 revision 0 Project number 2502536 Page 5 of 6
Part:
Producer:
Type:
Measurement transducer
Endress+Hauser Flowtec AG.
Documentation folder:
Reports:
CNGmass
TC10997-1
No. CPC-607296-1a dated 7 February 2007;
No. CPC-10200012-02a dated 8 February 2010;
No. NMi-16200831-01 dated 13 July 2017;
No. NMi-16200831-02 dated 19 July 2017;
No. NMi-2665464-01 dated 5 April 2022.
Table 5 General characteristics of the measurement transducer type CNGmass
| Minimum-maximum flow rate | 0,3-30kg/min(sizeDN08)0,8-80kg/min(sizeDN15)1,5-150kg/min(sizeDN25) |
| MMQ | 1kg |
| Maximum pressure | 350bar(g) |
| Intended for the measurement of | Compressed Natural Gas(CNG) |
| Environment classes | M2/E2 |
| Ambient temperature range | -40℃/+55℃;condensing humidity |
| Fluid temperature range | -50℃/+125℃ |
| Power supply Voltage | 20...28VAC;50/60Hz;10...30VDC |
| Software identification | SW Version number:1.01.00Checksum:0x13BD2D46 |
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-23.02 revision 0 Project number 2502536 Page 6 of 6
Part:
Producer:
Measurement transducer
Type:
Emerson Process Management Flow B.V.
CNG 050
Documentation folder:
TC11012-1
Reports:
No. CPC/9200574-2 dated 26 January 2010.
No. NMi-1900487-01 dated 14 July 2017.
Table 6 General characteristics of the measurement transducer type CNG050
| Minimum-maximum flow rate | 1,3-77kg/min |
| MMQ | 1kg |
| Maximum pressure | 317 or 345 bar(g)(depending on flange type) |
| Intended for the measurement of | Compressed Natural Gas(CNG) |
| Environment classes | M2/E2 |
| Ambient temperature range | -40℃/+55℃;condensing humidity |
| Fluid temperature range | -25℃/+55℃ |
| Power supply voltage | 24VDC±20%(withMVDDirectConnectI.S)15-26VDC |
| Software identification | SW Version number:3.52Checksum:3C4A |
Production location
The CNG dispenser 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 |