R139/2018-A-CZ1-24.01 Rev. 1
| OIML CERTIFICATE ISSUED UNDER SCHEME A | |
| OIML Issuing Authority Name: Czech Metrology Institute Address: Okružní 31, 638 00 Brno, Czech Republic Person responsible: Jan Kalandra | |
| Applicant Name: CENSTAR SCIENCE & TECHNOLOGY CORP., LTD Address: No.4, Xuesong Road, Hi-New Technology Industry Development Zone, Zhengzhou City, Henan Province, China | |
| Manufacturer Name: CENSTAR SCIENCE & TECHNOLOGY CORP., LTD Address: No.4, Xuesong Road, Hi-New Technology Industry Development Zone, Zhengzhou City, Henan Province, China | |
| Identification of the certified type (the detailed characteristics will be defined in the additional pages) CNG dispenser CSJQD3S, CSJQD1S | |
| Designation of the module (if applicable) | |
| This OIML 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): OIML R 139 Edition (year): 2018 For accuracy class (if applicable): 1.5 |
| This OIML Certificate relates only to metrological and technical characteristics of the type of measuring instrument covered by the relevant OIML Recommendation identified above. This OIML Certificate does not bestow any form of legal international approval. | ||
| The conformity was established by the results of tests and examinations provided in the associated OIML type evaluation reports: - No.0511-ER-F119-23 dated July 22,2024 that includes 20 pages. - Test report No.6015-PT-P5004-24 dated July 23,2024 that includes 16 pages including annexes. - No.0511-ER-F010-25 dated May 19,2025 that includes 20 pages. - Test report No.6015-PT-P0026-25 dated May 19,2025 that includes 13 pages including annexes. | ||
| The technical documentation relating to the identified type is contained in documentation file: 0511-UL-F119-23 OIML Certificate History | ||
| Revision No. | Date | Description of the modification |
| - | 29 August 2024 | Issuing certificate |
| Revision 1 | 21 May 2025 | New motherboard layout CNG200 |
| The OIML Issuing Authority Ing. František Staněk, PhD. Deputy Director of Certification Body Date:21 May 2025 | ||
| Important note: Apart from the mention of the Certificate's reference number and the name of the OIML Member State in which the Certificate is 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. | ||
Measuring system description
The CNG dispensers type CSJQD1S, CSJQD3S are designed to measure, memorise and display the mass of compressed natural gas (CNG) passing through the measurement transducer.
The CNG dispensers contain following models:
CSJQD1S: 2 filling nozzles, 1 bank;
CSJQD3S: 2 filling nozzles, 3 banks;
Measurement transducer Micro Motion CNG050;
The CNG dispensers type CSJQD1S, CSJQD3S consist of:
Calculating / indicating device Censtar Science & Technology Corp.
Motherboard of keyboard
Motherboard of calculating device CNG200
All metrological parameters are protected by hardware switch located on calculating device's motherboard. The hardware switch is protected by mechanical seal.
Characteristics
| Minimum measured quantity [kg]: | 2 | |
| Flow rate range [kg/min]: | 1.3-77 | |
| Maximum pressure of the gas Pmax[MPa]: | 25 | |
| Maximum storage pressure Pst[MPa]: | 27 | |
| Maximum fast-fill pressure Pv[MPa]: | 20 | |
| Types of gas or mixtures of gas: | Compressed natural gas | |
| Temperature range of the gas[℃]: | -25 to +55 | |
| Ambient temperature range[℃]: | -25 to +55 | |
| Environmental classification: | M1 | |
| Electrical power supply[V]: | 230 | |
| Identification of software: | ||
| Calculating device CNG200: | Main-V200 | |
| Keyboard: | CNG01-V2.00.1 | |
| Measurement transducer: | 3.52/3C4A | |
Securing components and verification marks
Recommended sealing points are shown in pictures below.
Figure 1: HW switch protected metrological parameters CNG200 ver. V1.02
Figure 2: HW switch protected metrological parameters CNG200 ver. V1.003.01
Right side = metrological parameters are protected
Figure 3: Sealing the motherboard of calculating device
Figure 4: Sealing the MVD Direct Connect Barriers (whole box)
Figure 5: Sealing the measurement transducer(s)
Figure 6: Appearance of computer box with calculating device CNG200 ver. V1.02
Figure 7: Appearance of computer box with calculating device CNG200 ver. V1.003.01
Figure 8: Appearance of keyboard's motherboard