Inspection body “FMT-Kontrola”

FMT Zaječar / Inspection body

Inspection body department

The department carries out testing, measurement, inspection and verification of measuring transformers intended for electricity billing. The work is performed using reliable and proven measuring equipment, applying defined test procedures and in accordance with the applicable standards, technical regulations and metrological requirements.

Our activities include testing of the metrological and technical characteristics of measuring transformers, checking the accuracy and reliability of measurements, analysis and processing of results, and preparation of the related technical documentation.

The Factory of Measuring Transformers Zaječar holds an authorisation of the Ministry of Economy for verification of measuring instruments, designation OM 074, covering measuring transformers used for electricity billing.

Professional work, experience and the use of reliable measuring systems ensure a high level of accuracy and reliability of test results, as well as compliance of measuring transformers with the prescribed requirements.

Inspection body contact

Stražilovska 57, 19000 Zaječar, Republic of Serbia

Phone/fax: +381 (0) 19 3413 536

E-mail: laboratorija@fmt.rs

Technical manager: Milan Vatović, B.Sc. in Electrical Engineering – m.vatovic@fmt.rs

Accreditation number (ATS)

06-142

SRPS ISO/IEC 17020:2012, type C

Accreditation valid until

13 May 2029

Accreditation granted on 14 May 2025

Authorised body registration number

OM 074

Directorate of Measures and Precious Metals

Authorisation valid until

9 July 2028

Decision dated 9 July 2025

Measuring instruments we verify

Type of inspection: initial verification, in accordance with the Rulebook on measuring transformers used for electricity billing (“Official Gazette of RS”, No. 88/22).

No.	Type of measuring instrument	Measuring range	Accuracy classes
1.	Current measuring transformers	Primary current up to 3000 A	0.10.20.50.2S0.5S
2.	Voltage measuring transformers	Primary voltage (highest voltage for equipment) up to 38 kV, for rated burdens at power factor 0.8 inductive (voltage measuring transformer burdens, type II)	0.10.20.5

Price list for verification of measuring instruments

Price list dated 14 July 2025, approved by the Ministry of Economy by decision of 17 July 2025.

No.	Type of measuring instrument	Amount in RSD per instrument, excluding VAT
1.	Current measuring transformers with primary current up to 3000 A accuracy classes: 0.1; 0.2; 0.5; 0.2S; 0.5S	1,820.00
2.	Voltage measuring transformers with primary voltage up to 38 kV, for rated burdens at power factor 0.8 inductive (voltage measuring transformer burdens, type II) accuracy classes: 0.1; 0.2 and 0.5	1,820.00

The original price list and the Ministry's approval decision can be found in the Documents section.

Terms

Prices are stated excluding VAT.
Payment is made in advance, based on a pro forma invoice, to account no. 160-375528-50, Banca Intesa Belgrade.
No price reductions are provided.
A verification certificate for an instrument for which the metrological instruction or type approval certificate does not prescribe mandatory issuance of a certificate is charged additionally at RSD 2,800.00.

How to request verification

Verification is carried out at the inspection body “FMT-Kontrola”, Stražilovska 57, Zaječar. The forms are available in the Documents section below.

Fill in the Request for inspection (verification) of measuring instruments with the applicant's details and the number of pieces per type of inspection.

Together with the request, fill in the Request annex with the characteristics of the instruments submitted for inspection.

Send the completed documents to laboratorija@fmt.rs and propose a date for the initial inspection.

After receiving the pro forma invoice, make the advance payment; the instruments are then inspected and verified (sealing and, where required, a certificate).

Confidentiality: all information obtained or created during the inspection of the client's instruments is treated by the inspection body as a business secret and will not be made publicly available, unless otherwise agreed. If disclosure of confidential information is required by law, the client will be notified, unless this is prohibited by law.

Complaints and appeals

Every user of the inspection body's services, as well as any interested party, has the right to file a complaint or an appeal if they believe the procedure was not carried out in accordance with the requirements of the standard.

A complaint can be filed in writing (by post), in person, by e-mail or by phone; it may be received by any employee of the inspection body.
The complaints and appeals procedure is free of charge, and the complainant's data are kept confidential.
The complainant is informed that the complaint is being processed, of the expected response time and of the measures taken.
Persons to whom the complaint relates do not take part in determining whether it is justified.
If the complainant does not agree with the decision, the procedure continues at second instance, in accordance with the Law on General Administrative Procedure.

The complete complaints and appeals procedure can be found in the Documents section.

Insurance of instruments

All instruments submitted for inspection to the inspection body “FMT-Kontrola” are insured with an insurance company. If damage occurs during handling or inspection and is caused by the work of the inspection body's staff or a failure of its equipment, the damage will be compensated.

Documents

Click a document to view it. You can download the PDF using the “Download PDF” button in the document viewer. The current edition of the scope of accreditation is also available at www.ats.rs.

Inspection body equipment

Measuring equipment used for the inspection and verification of measuring transformers.