R85/2008-A-NL1-20.02 Rev. 1
OIML Certificate
OIML Member State The Netherlands
Number R 85/2008-A-NL1-20.02 revision 1
Project number 2572706
Page 1 of 2
Issuing authority Person responsible:
NMi Certin B.V. M. Boudewijns
Applicant and Manufacturer
Endress+Hauser SE+Co. KG
Hauptstrasse 1
79689 Maulburg
Germany
Identification of the A calculating and indicating device intended for use as part of a liquid level gauge certified type Type: NRF81
Characteristics See page 2 and further
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 85-1 & 2 (2008) "Automatic level gauges for measuring the level of liquid in stationary storage tanks"
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.
This certificate and supporting reports comply with the requirements of OIML-CS-PD-07 clause 6.2.
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 25 March 2021
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.
OIML Certificate
OIML Member State The Netherlands
Number R 85/2008-A-NL1-20.02 revision 1
Project number 2572706
Page 2 of 2
The conformity was established by the results of tests and examinations provided in the associated reports:
No. NMi-16200591-05 dated 19 December 2016 that includes 19 pages.
No. NMi-16200591-06 dated 19 December 2016 that includes 17 pages;
No. NMi-2491609-01 dated 25 November 2020 that includes 52 pages;
No. NMi-2491609-02 dated 25 November that includes 20 pages.
Characteristics of the measuring instrument
In Table 1 the general characteristics of the measuring instrument are presented.
The construction of the measuring instrument is recorded in the Documentation folder no. TC8909-3.
Table 1 General characteristics
| Ambient temperature range | -40-+70℃; condensing humidity |
| Power supply voltage | -AC mains100...240VAC(-15%/+10%)@50/60Hz-AC mains65VAC(-20%/+15%)@50/60Hz-DC mains24...55VDC(-20%/+15%) |
| Software identification | Version number01.02.00withchecksum0x02FEVersion number01.02.01withchecksum0x0D3EVersion number01.03.03withchecksum0x8D45Version number01.04.01withchecksum0xfa7aVersion number01.05.00withchecksum0x991f |
Certificate history: This revision replaces the previous version.
| Revision | Date | Description of the modification |
| Initial | 10 December 2020 | - |
| 1 | 25 March 2021 | Added new software version 01.05.00 |