R46/2012-A-NL1-23.04 Rev. 1
OIML Certificate
OIML Member State The Netherlands
Number R46/2012-A-NL1-23.04 revision 1
Project number 3906012
Page 1 of 4
Issuing authority
NMi Certin B.V. Person responsible: M.Ph.D. Schmidt
Applicant and Saudi Meters Company ltd.
Manufacturer 2nd Industrial Area
4719 Riyadh 14331-7141 Unit No.14
Kingdom of Saudi Arabia
Identification of the certified type
A measuring instrument Type: MA309MT3LSA or MA309MT4LSA
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 46-1/-2 (2012) "Active electrical energy meters"
Accuracy class
C for MA309MT4LSA
Accuracy class
D for MA309MT3LSA
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 17 June 2025
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
Number R46/2012-A-NL1-23.04 revision 1
Project number 3906012
Page 2 of 4
No. NMi-3630882-03 dated 8 September 2023 that includes 60 pages;
No. NMi-3630882-04 dated 8 September 2023 that includes 12 pages.
The conformity was established by the results of tests and examinations provided in the associated reports:
- No. NMi-3906012-01 dated 17 June 2025 that includes 30 pages.
Characteristics of the measuring instrument
In Table 1 the general characteristics of the measuring instrument are presented.
Table 1 General characteristics
| General characteristics MA309MT3LSA | |
| Meter type | Static |
| Connection mode(phase, wires, elements) | 3p,3w,3e(CT/VT connected)3p,4w,3e(CT/VT connected) |
| Direction of energy flow/registers | Two-registers,bi-directional |
| Terminal arrangement | 3P3W:DIN438573P4W:BS Type |
| Protective class | ClassII |
| Environmental application | |
| Ambient temperature range | -25℃to+70℃(tested up to+80℃) |
| Humidity class | 3P3W:H23P4W:H2 |
| IP Rating/environmental use | 3P3W:IP54(indoor)3P4W:IP54(indoor) |
| Meter quantities | |
| Nominal voltage($U_{nom}$) | 3P3W:3x110V3P4W:3x57,73/100...3x120/209 |
| Nominal frequency($f_{nom}$) | 60Hz |
| Maximum current($I_{max}$) | 6A |
| Basic current($I_{n}$) | 1A or1.5A |
| Transitional current($I_{tr}$) | 0.1A |
| Minimum current($I_{min}$) | 0.01A or0.015A |
| Starting current($I_{st}$) | 0.001A or0.0015A |
| Meter constant | 10.000imp./kWh |
OIML Certificate
OIML Member State The Netherlands
Number R46/2012-A-NL1-23.04 revision 1
Project number 3906012
Page 3 of 4
| Product version | |
| Hardware version | KF13A430 Main V1.1 |
| Power supply board(PS) | KF13A430 PS V1.1 |
| Communication Module version | CL101KG:KF01L064V3.4 |
| Communication Module version | CL101KG:KF01L064V3.4 |
| Communication Module version | CL102KG:KF01L1534GV1.1 |
| Software identification | LR:4303Checksum:7741D0E8 |
| General characteristics MA309MT4LSA | |
| Meter type | Static |
| Connection mode(phase, wires,elements) | 3p,4w,3e(CT connected) |
| Direction of energy flow/registers | Two-registers,bi-directional |
| Terminal arrangement | DIN43857 |
| Protective class | Category2 |
| Environmental application | |
| Ambient temperature range | -25℃to+70℃ |
| Humidity class | H2 |
| IP Rating/environmental use | IP54(indoor) |
| Meter quantities | |
| Nominal voltage($U_{nom}$) | 3x133/230V...3x230/400V |
| Nominal frequency($f_{nom}$) | 60Hz |
| Maximum current($I_{max}$) | 6A |
| Basic current($I_{n}$) | 1.5A |
| Transitional current($I_{tr}$) | 0.1A |
| Minimum current($I_{min}$) | 0.015A |
| Starting current($I_{st}$) | 0.0015A |
| Meter constant | 10.000imp./kWh |
| Product version | |
| Hardware version | KF13A427MainV1.1 |
| Power supply board(PS) | KF13A427PSV1.1 |
| Module version | CL101KG:KF01L064V3.4 |
| Software identification | LR:4202Checksum:E893748D |
OIML Certificate
OIML Member State The Netherlands
Number R46/2012-A-NL1-23.04 revision 1 Project number 3906012
Page 4 of 4
Certificate history:
This revision replaces the previous version.
| Revision | Date | Description of the modification |
| 0 | 8 September 2023 | Initial issue |
| 1 | 17 June 2025 | MA309MT3LSA meter is changed from a 3P3W configuration to a 3P4W configuration, changed in voltage from 3x110V to 3x57,73/100V...3x120/209V and update of communication module CL101KG communication which includes NB+2G+GPS and additional module CL102KG which includes 4G+2G+GPS and a change of operating temperature from-25℃...+70℃ to-25℃...+80℃ |