R137/2012-A-CZ1-24.01 Rev. 1
OIML Member State Czech Republic
OIML Certificate No. R137/2012-A-CZ1-24.01 Revision 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: Hangzhou Innover Technology Co., Ltd Address: NO.1186-1, Bin’an Road, Binjiang District 310052 Hangzhou City Zhejiang Province, China | |
| Manufacturer Name: Hangzhou Innover Technology Co., Ltd Address: NO.1186-1, Bin’an Road, Binjiang District 310052 Hangzhou City Zhejiang Province, China | |
| Identification of the certified type (the detailed characteristics will be defined in the additional pages) diaphragm gas meter type: G1.6, G2.5, G4, G4K | |
| 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 |
| 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 report: • No.0511-ER-P084-24 dated30.9.2024 that includes17pages. • Test Report No.5012-PT-A0014-24 dated26.9.2024 that includes11pages. | ||
| The technical documentation relating to the identified type is contained in documentation file: 0511-UL-P084-24 OIML Certificate History | ||
| Revision No. | Date | Description of the modification |
| - | 29 May 2024 | Issuing Certificate |
| Revision 1 | 14 October 2024 | Gas meters with aluminium housing and pulse emitter were added. |
| Identification, signature and stamp The OIML Issuing Authority RNDr.Pavel Klenovský Head of Certification Body Date:14 October 2024 | ||
| 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 | INNOVER® |
| Type designation | G4,G4K,G2.5,G1.6 |
| Accuracy class | 1.5 |
| Cyclic volume(if applicable) | 1.2dm3 |
| 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 label:
(Gas meters with aluminium housing must not be marked with letter "T".)
POLSKY MIKROTOROCY INSTITUT
Photos of the construction of gas meters with steel housing:
CENTRAL HISTORICUM INSTITUTI
Photos of the construction of gas meters with aluminium housing:
GEOLOGICAL VESTING
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 $Q_{\mathrm{max}}(\mathrm{Pa})$ | $P_{\mathrm{max}}(\mathrm{kPa})$ |
| G4K | 6.0 | 0.6 | 0.016 | 1.2 | 200 | 50 |
| G4 | 6.0 | 0.6 | 0.04 | 1.2 | 200 | 50 |
| G2.5 | 4.0 | 0.4 | 0.025 | 1.2 | 200 | 50 |
| G1.6 | 2.5 | 0.25 | 0.016 | 1.2 | 200 | 50 |
| Pulse number | 1imp=0.01m3 |
The gas meter does not contain any electronic components.
The gas meter can be produced with steel housing with the distance between connections (male threads): 130 mm, 110 mm
The male threads used in gas meters G1.6, G2.5, G4, G4K: G1 $ \frac{1}{4} $ , G1" , G7/8" , G3/4" , M30 $ \times $ 2, M26 $ \times $ 1.5, 3/4"NPT, 1"BS746, 3/4"BS746
Dimensional drawing of diaphragm gas meters G1.6, G2.5, G4, G4K with steel housing:
| A(mm) | 110/130 |
| B(mm) | 206 |
| C(mm) | 212 |
| D(mm) | 166 |
| E(mm) | 136 |
MIDDLEBURG INSTITUTE OF PHYSICISTRY
Dimensional drawing of diaphragm gas meters G1.6, G2.5, G4, G4K with aluminium housing:
Location of 2 seals on diaphragm gas meters G1.6, G2.5, G4, G4K with steel housing:
Location of 4 seals on diaphragm gas meters G1.6, G2.5, G4, G4K with aluminium housing:
Verze 20-001
ZUCKER INSTITUTIONAL INSTITUT