R137/2012-B-NL1-18.16
OIML Certificate
OIML Member State The Netherlands
Number R 137/2012-B-NL1-18.16 Project number 1902481 Page 1 of 2
Issuing authority NMi Certin B.V. Person responsible: C. Oosterman
Applicant and Manufacturer ZENNER Metering Technology (Shanghai) Ltd. No.6558, East Yinggang Road Qingpu Industrial Zone Shanghai P.R. China
Identification of the diaphragm gas meter certified type Type: xxS (steel)/ HP xxA (aluminium) (xx is G1.6, G2.5, G4 or WG2.5) Brand: Huajune
Characteristics See page 3
This OIML Certificate is issued under scheme B
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 137-1 (2012) "Gas meters"
Accuracy class
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
2 November 2018
C. Oosterman Head Certification Board
NMi Certin B.V.
Hugo de Grootplein 1
3314 EG Dordrecht
the Netherlands
T +31 78 6332332
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
OIML Certificate
OIML Member State The Netherlands
Number R 137/2012-B-NL1-18.16
Project number 1902481
Page 2 of 2
The conformity was established by the results of tests and examinations provided in the associated report(s):
No. NMi-13200090-04 dated 17 November 2015 that includes 50 pages.
Characteristics of the gas meter:
Table 1 gives the general characteristics of the meter type. Table 2 specify in detail the essential characteristics.
Table 1: General characteristics
| Destined for the measurement of | Gas volume |
| Mechanical class | M1 |
| Electromagnetic class | E1 |
| Cyclic volume | 1,2dm3 |
| Maximumpmax-AtmosxxS | 0,5bar |
| Maximumpmax-AtmosHPxxA | 1,5bar |
| Ambient temperature range | -25℃/+55℃ |
| Gas temperature range | -25℃/+55℃ |
| Table 2: Essential characteristics | ||
| Maximum $Q_{\mathrm{max}}$ [m3/h] | Minimum $Q_{\mathrm{min}}$ [m3/h] | Minimum Qt [m3/h] |
| 6 | 0.016 | 0.20 |
Notes:
If higher values are chosen for $ Q_{\mathrm{min}} $ and/or lower values for $ Q_{\mathrm{max}} $ it has to be taken into account that $ Q_{\mathrm{max}} / Q_{\mathrm{min}}\geq 150 $ . For $ Q_{t} $ it has to be taken in account that the minimum value is not lower than the minimum value as indicated in the table above and that $ Q_{t}\leq0,1 $ $ Q_{\mathrm{max}}. $