Accredited by the Romanian Accreditation Association RENAR

Certificate No. LE 026 / 27.07.2011

We perform calibration of the following measurement equipment types:

1. Voltmeters for direct voltage – scopes from 0.02 to 1000 VDC
2. Voltmeters for alternating voltage – scopes from 0.2 to 1000 VAC (50Hz)
3. Ammeters for direct current – scopes from 0.2 mA to 1.9 ADC
4. Ammeters for alternating current – scopes from 2 mA to 1.9 AAC (50Hz)
5. Ohmmeters ( R ) – scopes from 0.01 Ω to 100 kΩ
6. Equipment for measurement of parameters of el. installations:
   • ground resistance RA (RE) – scopes from 0.5 Ω to 2 kΩ
   • “phase-zero” loop impedance, phase-insulated conductors (LOOP) in scopes from 0.1 Ω to 200 Ω
   • contact voltage Uc (Uf) - scopes from 0.1 V to 90 V
   • trip current of  RCDs - 10mA, 30mA, 100mA, 300mA, 500mA
   • insulation resistance (megohmmeters) – scopes up to 1 ТΩ by test voltage up to 5000V

Here you can see a scanned copy of the certificate of accreditation.

Contacts:

E-mail: lab@deltainst.com

Eng. Georgi Tabakov,     Tel: +359 2 974 62 38

Eng. Mihail Mihaylov,     Tel: +359 2 974 62 37