R139/2018-A-NL1-22.01 Rev. 1
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-22.01 revision 1
Project number 2955059
Page 1 of 2
Issuing authority Person responsible:
NMi Certin B.V.
M.Ph.D. Schmidt
Applicant and Manufacturer
Rheonik Messtechnik GmbH
Rudolf Diesel Strasse 5
85235 Odelzhausen
Germany
Identification of the certified type
A measurement sensor (Coriolis sensor) Type: RHM04; RHM10
Characteristics
See page 2
This OIML Certificate is issued under scheme A.
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 139-1 (2018) "Compressed gaseous fuel measuring systems for vehicles"
Accuracy class 2/4
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 24 February 2023
NMi Certin B.V.
Thijsseweg 11
2629 JA Delft
The Netherlands
T +31 88 636 2332
Certification Board
This document is issued under the provision that no liability is accepted and that the applicant shall indemnify third-party liability.
This document is digitally signed and sealed. The digital signature can be verified in the blue ribbon at the top of the electronic version of this certificate.
OIML Certificate
OIML Member State The Netherlands
Number R139/2018-A-NL1-22.01 revision 1
Project number 2955059
Page 2 of 2
The conformity was established by the results of tests and examinations provided in the associated reports:
No. NMi-2438559-01 dated 29 April 2022 that includes 122 pages;
No. NMi-2955059-01 dated 18 May 2022 that includes 20 pages;
No. NMi-3592299-01 dated 24 February 2023 that includes 15 pages.
Characteristics of the measuring instrument
In Table 1 the general characteristics of the measuring instrument are presented. The construction of the measuring instruments is recorded in the Documentation folder no.2955059-1
Table 1 General characteristics
| Sensor type | RHM04 | RHM10 |
| Qmin(kg/min) | 0,075 | 0,15 |
| Qmax(kg/min) | 7,2 | 24 |
| Minimum Measured Quantity(MMQ) | 1 | 1 |
| Flow direction | bi-directional | |
| Maximum pressure(bar g) | 1087 | 1040 |
| Accuracy class | 2 or 4 | |
| Environmental classes | M2/E2 | |
| Ambient temperature range | -40℃-+70℃;non condensing humidity | |
| Product temperature range | -40℃-+55℃ | |
| Intended for the measurement of | Hydrogen(H2) | |
Certificate history:
This revision replaces the previous version.
| Revision | Date | Description of the modification |
| Initial | 18 May 2022 | Initial approval |
| 1 | 24 February 2023 | Extension of flowrates. |