R137/2012-A-CZ1-23.01
| OIML Certification System | CMI |
| OIML Member State Czech Republic | OIML Certificate No. R137/2012-A-CZ1-2023.01 |
| 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: Zhejiang Songchuan Instrument Technology Co., Ltd. Address: No.1 Luhai Road, Eastern New District, 317511 Wenling, Taizhou City Zhejiang, China | |
| Manufacturer Name: Zhejiang Songchuan Instrument Technology Co., Ltd. Address: No.1 Luhai Road, Eastern New District, 317511 Wenling, Taizhou City Zhejiang, China | |
| Identification of the certified type (the detailed characteristics will be defined in the additional pages) diaphragm gas meter type: JBD1.6-SA, JBD2.5-SA (or G1.6, G2.5) | |
| 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 R137 Edition (year): 2012, Including Amendment 2014 For accuracy class (if applicable): 1.5 | |
| Revision No. | Date | Description of the modification |
| - | 9 June 2023 | Issuing Certificate |
| Identification, signature and stamp The OIML Issuing Authority RNDr. Pavel Klenovský Head of Certification Body Date: 9 June 2023 | ||
| 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 | ||
1 General information concerning the type
| Information indicated on the instrument | |
| Manufacturer's trade mark | JBD1.6-SA, JBD2.5-SA(or G1.6,G2.5) |
| Type designation | JBD1.6-SA,JBD2.5-SA(or G1.6,G2.5) |
| Accuracy class | 1.5 |
| Cyclic volume(if applicable) | 0.9dm3 |
| Minimum pressurepmin | 0 bar(g) |
| Maximum pressurepmax | 0.5 bar(g) |
| Ambient temperature range | (-25...+55)℃ |
| Gas temperature range | (-25...+55)℃ |
| Base pressure(if applicable) | Not applicable |
| Base temperature(if applicable) | Not applicable |
| tsp(if applicable) | Not applicable |
| Electrical power | Not applicable |
| Identification of software | Not applicable |
Example of the labels:
Photos of the constructions:
2 Additional information concerning the type
| Size G | $Q_{\mathrm{max}}(\mathrm{m}^{3}/\mathrm{h})$ | $Q_{t}(\mathrm{m}^{3}/\mathrm{h})$ | $Q_{\mathrm{min}}(\mathrm{m}^{3}/\mathrm{h})$ | Cyclic volume $V(\mathrm{dm}^{3})$ | Maximum permissible pressure loss $\Delta P$ in $Q_{\mathrm{max}}(\mathrm{Pa})$ | $P_{\mathrm{max}}(\mathrm{kPa})$ |
| G2.5 | 4.0 | 0.4 | 0.025 | 0.9 | 200 | 50 |
| G1.6 | 2.5 | 0.25 | 0.016 | 0.9 | 200 | 50 |
The gas meter can be produced with the distance between connections (male threads): 130 mm, 110 mm, 90 mm
The male threads used in gas meters JBD1.6-SA, JBD2.5-SA (or G1.6, G2.5): M30x2, G7/8", G3/4"
Dimensions of diaphragm gas meters JBD1.6-SA, JBD2.5-SA (or G1.6, G2.5) (part 1/2)
Cesky metrologicky institut
Dimensions of diaphragm gas meters JBD1.6-SA, JBD2.5-SA (or G1.6, G2.5) (part 2/2)
Location of 8 seals on diaphragm gas meters JBD1.6-SA, JBD2.5-SA (or G1.6, G2.5):