R60/2021-A-NL1-26.03 Rev. 0
OIML Certificate
OIML Member State The Netherlands
Number R60/2021-A-NL1-26.03 revision 0 Project number 3883612 Page 1 of 2
Issuing authority
NMi Certin B.V.
Person responsible: M.Ph.D. Schmidt
Applicant and Manufacturer
Keli Sensing Technology (Ningbo) Co., Ltd. No.199, Changxing Road Jiangbei District, Ningbo China
Identification of the certified type
A compression load cell, with strain gauges, equipped with electronics. Type : SDS
Characteristics
See next page
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 Test Report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML):
OIML R 60-1:2021 for accuracy class C
This Certificate relates only to the metrological and technical characteristics of the type of measuring instrument covered by the relevant OIML International Recommendation above-identified. 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 Test Report(s) is not permitted, although either may be reproduced in full.
Issuing Authority
NMi Certin B.V., OIML Issuing Authority NL1 13 February 2026
NMi Certin B.V.
Thijsseweg 11
2629 JA Delft
The Netherlands
T +31 88 6362332
Certification Board
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
This document is digitally signed and sealed. The digital signature can be verified in the blue ribbon on top of the electronic version of this certificate.
OIML Certificate
Number R60/2021-A-NL1-26.03 revision 0
Project number 3883612
Page 2 of 2
The conformity was established by the results of tests and examinations provided in the associated report:
No. NMi-3883612-01 dated 13 February 2026 that includes 46 pages.
Characteristics of the load cell:
| Characterization of load cell capabilities | Digital load cell |
| Maximum capacity $ E_{\mathrm{max}} $ | 20t up to and including 100t |
| Minimum dead load | 0kg |
| Accuracy Class | C |
| Maximum number of load cell intervals(n) $ ^{(1)} $ | 4000 |
| Ratio of minimum LC Verification interval $ ^{(1)} $ $ Y=E_{\mathrm{max}}/v_{\mathrm{min}} $ | 9000 |
| Ratio of minimum dead load output return $ ^{(1)} $ $ Z=E_{\mathrm{max}}/(2*DR) $ | 5000 |
| Temperature range | -10℃/+40℃ |
| Fraction $ p_{\mathrm{LC}} $ | 0,8 |
| Humidity Class | NH |
| Safe overload | 150% of $ E_{\mathrm{max}} $ |
| Recommended excitation | 12V DC |
| Excitation maximum | 15V DC |
| Transducer material | steel |
| Atmospheric protection | Hermetically welded |
| Electromagnetic environment class | E2 |
| Number of counts for $ E_{\mathrm{max}} $ | ≥Y*5/pLC |
| Software identification | Version number:2 |
Remarks:
The characteristics for $ n_{\mathrm{max}} $ , Y and Z can be reduced separately;
The identification number will be displayed on the load cell.
Each load cell produced is provided with an accompanying document with information about its characteristics.
Revision History
| Revision | Date | Change(s) |
| 0 | 2026-02-13 | Initial issue. |