R137/2012-B-NL1-18.13
OIML Certificate
OIML Member State The Netherlands
Number R 137/2012-B-NL1-18.13 Project number 16200656 Page 1 of 3
Issuing authority NMi Certin B.V. Person responsible: C. Oosterman
Applicant and Pietro Fiorentini S.p.A. Manufacturer Via E. Fermi, 8/10 36057-Arcugnano (VI) Italy
Identification of the A Rotary displacement gas meter certified type IM-RM
Characteristics See page 2 and further
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 1.0
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
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-NL1-18.13
Project number 16200656
Page 2 of 3
The conformity was established by the results of tests and examinations provided in the associated report(s):
No. CVN-700313-02 dated 11 March 2014 that includes 27 pages;
No. NMi-11200077-01 dated 5 October 2018 (identical copy) that includes 7 pages;
No. NMi-15200227-01 dated 22 December 2016 that includes 10 pages;
No. NMi-16200656-01 dated 17 January 2018 that includes 20 pages;
No. NMi-16200656-02 dated 7 December 2018 that includes 19 pages.
Characteristics of the measuring instrument
In Table 1 the general characteristics of the measuring instrument are presented.
Table 2 gives an overview of the general characteristics of the family of instruments.
Table 1 General characteristics
| Destined for the measurement of | Gas volume |
| Environmental classes | M1/E1 |
| Accuracy class | 1.0 |
| Maximum pressure | 20 bar |
| Ambient temperature range | -25℃/+55℃ |
| Gas temperature range | -25℃/+55℃ |
| Designed for | condensing humidity |
| Orientation | Horizontal/Vertical up/Vertical down(all orientations) |
| Flow direction | Uni-directional(indicated with arrow) |
| G-value | $Q_{\mathrm{max}}$ [m³/h] | minimum $Q_{\mathrm{min}}$ [m³/h] | $Q_{\mathrm{t}}$ [m³/h] | volume V [dm³] | diameter [mm] | accuracy class | maximum $p_{\mathrm{max}}$ [bar(g)] |
| G10 | 16 | 0,3 | 0,8 | 0,18 | $40^{[1]}$ | 1,0 | 19 |
| G16 | 25 | 0,3 | 1,25 | 0,18 | $40^{[1]}$ | 1,0 | 19 |
| G25 | 40 | 0,5 | 2 | 0,26 | $40^{[1]}$ | 1,0 | 19 |
| G40 | 65 | 1,8 | 3,25 | 0,26 | $40^{[1]}$ | 1,0 | 19 |
| G16 | 25 | 0,5 | 1,25 | 0,69 | 40 or 50 | 1,0 | 19 |
| G25 | 40 | 0,5 | 2 | 0,69 | 40 or 50 | 1,0 | 19 |
| G40 | 65 | 0,5 | 3,25 | 0,69 | 40 or 50 | 1,0 | 19 |
| G65 | 100 | 0,5 | 5 | 0,69 | 40 or 50 | 1,0 | 19 |
| G65 | 100 | 0,5 | 5 | 0,69 | 40 or 50 | $1,0^{[2]}$ | 20 |
| G40 | 65 | 0,8 | 3,25 | 1,11 | 50 or 80 | 1,0 | 19 |
| G65 | 100 | 0,8 | 5 | 1,11 | 50 or 80 | 1,0 | 19 |
| G100 | 160 | 0,8 | 8 | 1,11 | 50 or 80 | 1,0 | 19 |
| G100 | 160 | 0,8 | 8 | 1,11 | 50 or 80 | $1,0^{[2]}$ | 20 |
| G160 | 250 | 1,6 | 12,5 | 1,42 | 80 | 1,0 | 19 |
| G160 | 250 | 1,6 | 12,5 | 1,42 | 80 | $1,0^{[2]}$ | 20 |
| G65 | 100 | 1,25 | 5 | 1,73 | 80 | 1,0 | 19 |
| G100 | 160 | 1,25 | 8 | 1,73 | 80 | 1,0 | 19 |
| G160 | 250 | 1,25 | 12,5 | 1,73 | 80 | 1,0 | 19 |
| G160 | 250 | 1,25 | 12,5 | 1,73 | 80 | $1,0^{[2]}$ | 20 |
| G65 | 100 | 1,25 | 5 | 2,31 | 80 or 100 | 1,0 | 20 |
| G100 | 160 | 1,25 | 8 | 2,31 | 80 or 100 | 1,0 | 20 |
| G160 | 250 | 1,25 | 12,5 | 2,31 | 80 or 100 | $1,0^{[2]}$ | 20 |
| G100 | 160 | 2 | 8 | 2,98 | 80 or 100 | 1,0 | 20 |
| G160 | 250 | 2 | 12,5 | 2,98 | 80 or 100 | 1,0 | 20 |
| G250 | 400 | 2 | 20 | 2,98 | 80 or 100 | $1,0^{[2]}$ | 20 |
| G250 | 400 | 3,25 | 20 | 3,88 | 100 or 150 | 1,0 | 20 |
| G400 | 650 | 3,25 | 32,5 | 3,88 | 100 or 150 | $1,0^{[2]}$ | 20 |
| G400 | 650 | 5 | 32,5 | 5,97 | 150 | 1,0 | 20 |
| G650 | 1000 | 5 | 50 | 5,97 | 150 | $1,0^{[2]}$ | 20 |
[1] The meters are equipped with 1 $ \frac{1}{2} $ inch thread connections.
[2] The meters can also be delivered as class 1,5 with $ Q_{\mathrm{max}}/Q_{\mathrm{min}}\geq 150. $
Installation conditions:
For this rotary meter family no specific installation conditions are applicable.