R60/2021-A-NL1-24.34 Rev. 2
OIML Certificate
OIML Member State The Netherlands
Number R60/2021-A-NL1-24.34 revision 2 Project number 4020720 Page 1 of 3
Issuing authority
NMi Certin B.V.
Person responsible: M.Ph.D. Schmidt
Applicant and Manufacturer
Zhonghang Electronic Measuring Instruments (Xi'an) Co., Ltd. No.166, WestAve, Hi-tech District Xi'an, Shaanxi China
Identification of the certified type
A compression load cell, with strain gauges, equipped with electronics. Registered trade name ZEMIC
Type
: DHM14Hx
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 30 December 2025
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 R60/2021-A-NL1-24.34 revision 2 Project number 4020720 Page 2 of 3
Page 2 of 3
The conformity was established by the results of tests and examinations provided in the associated report:
No. NMi-3817525-01 revision 1 dated 20 January 2025 that includes 95 pages.
Characteristics of the load cell:
| Characterization of load cell capabilities | Digital load cell |
| Maximum capacity $ E_{\mathrm{max}} $ | 10t up to and including 50t |
| 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}} $ | 20000 |
| Ratio of minimum dead load output return $ ^{(1)} $ $ Z=E_{\mathrm{max}}/(2*DR) $ | 4000 |
| Temperature range | -10 $ ^{\circ} \mathrm{C} $ +40 $ ^{\circ} \mathrm{C} $ |
| Fraction $ p_{\mathrm{LC}} $ | 0,7 |
| Humidity Class | CH |
| Safe overload | 150% of $ E_{\mathrm{max}} $ |
| Recommended excitation | 12V DC |
| Excitation maximum | 15V DC |
| Transducer material | Alloy steel |
| Atmospheric protection | Hermetically welded |
| Electromagnetic environment class | E2 |
| Number of counts for $ E_{\mathrm{max}} $ | 300000 $ \geq $ Y $ \ast $ 5/$ p_{\mathrm{LC}} $ |
| Software identification | Version number:6.0 Checksum:8FBF |
Remark:
- The characteristics for $ n_{\mathrm{max}} $ Y and Z can be reduced separately.
Each load cell produced is provided with an accompanying document with information about its characteristics.
The above identified Type (represented by the sample(s) identified in the OIML Test Report) have bee found to comply with the additional national requirements established by the United States of America (NIST Handbook 44 and NCWM Publication 14), included in the Utilizer Declaration:
R 60 OIML-CS rev.2 Additional requirements from the United States Accuracy class III L;
R 60 OIML-CS rev.2 Additional requirements from the United States Marking requirements.
OIML Certificate
OIML Member State The Netherlands
Number R60/2021-A-NL1-24.34 revision 2 Project number 4020720
Revision History
Page 3 of 3
| Revision | Date | Change(s) |
| 0 | 2024-12-30 | Initial issue. |
| 1 | 2025-01-21 | Editorial change in the applicant's name. |
| 2 | 2025-12-30 | Change of address. |