National Registry No 57346-14 (extended until 15.03.2029)
Semi-automatic test system for accuracy testing (calibration and verification) of energy meters and instruments for electrical measurements (designed as a complete operator’s workbench controlled by PC software)
Accuracy classes: 0.02, 0.05
The test bench performs tests for simple or smart meters and provides expanded sets of measurements according to customer needs.
Basic types of tested equipment:| Single- and three-phase active and reactive energy meters of accuracy class 0.05 or less accurate including smart meters with integrated power quality measurement function (class S) | ![]()  | 
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| Single- and three-phase meters measuring active power, reactive power, phase angles, frequency, voltage, and current of accuracy class 0.05 or less accurate up to 120 A, 997 V (AC measurements) and up to 100 A, 600 V (DC measurements) | ![]()  | 
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| Measuring converters of voltage, current, active power, and reactive power of accuracy class 0.2 with unified output low-voltage signals (operating in the industrial frequency range) | ![]()  | 
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| Power quality analysers (compliant with Russian state standard GOST 32144) equipped with contactless current sensors up to 3000 A. | ![]()  | 
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Voltage, current, power (AC/DC) | 
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Frequency | 
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Angles U–I, U–U | 
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Harmonics (interharmonics) according to IEC 61000-4-7 | 
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Unbalance | 
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Events | 
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Flicker (IEC 61000-4-15). | 
Manufacturers of energy meters, metrology labs of industrial enterprises, and Rosstandart entities use the MTS-ME 3.1KM-S as a working standard of AC power of the first grade (class 0.02) and second grade (class 0.05).





Mains
power supply

AC power 
consumption

Operating 
temperature range

Weight
70 kg, or less| 
 Parameter  | 
 Range  | 
 Limits of permissible error  | 
|
| 
 Accuracy cl. 0.02  | 
 Accuracy cl. 0.05  | 
||
| 
 Voltage (AC/DC)  | 
 0.1 ... 960 V  | 
 ±0.01 %  | 
 ±0.02 %  | 
| 
 Current (AC/DC)  | 
 1 mA ... 120 А  | 
 ±0.01 %  | 
 ±0.02 %  | 
| 
 Frequency  | 
 42 ... 70 Hz  | 
 Absolute  | 
 Absolute  | 
| 
 Phase shift U–I, U–U  | 
 –180° ... +180°  | 
 Absolute  | 
|
| 
 Power factor  | 
 –1.0 ... +1.0  | 
 Absolute  | 
|
| 
 Active power  | 
 
  | 
 ±0.015 %  | 
 ±0.05 %  | 
| 
 Reactive power  | 
 
  | 
 ±0.03 %  | 
 ±0.1 %  | 
| 
 Harmonics 2 ... 50, THD  | 
 According to IEC 61000-4-7  | 
||
| 
 Interharmonics 0.5 ... 50.5  | 
|||
| 
 Flicker  | 
 According to IEC 61000-4-15  | 
||
| 
 Power quality parameters  | 
 According to IEC 61000-4-30, class A  | 
||

| 
 Parameter  | 
 Output setting range  | 
 In increments of  | 
 Value  | 
| 
 Phase voltage:  | 
 6 ... 576 V 0.1 ... 6 V (optional)  | 
 0.01 V  | 
 
  | 
| 
 Distortion  | 
 
  | 
 
  | 
 ≤0.5 %  | 
| 
 Power per phase (3/5/10/20-position model)  | 
 
  | 
 
  | 
 150/150/300*/600* VA  | 
| 
 Current:  | 
 1 mA ... 120 A  | 
 0.0001 A  | 
 
  | 
| 
 Distortion  | 
 
  | 
 
  | 
 ≤0.5 %  | 
| 
 Power per phase (3/5/10/20-position model)  | 
 
  | 
 
  | 
 200/300/600*/1200* VA  | 
| 
 DC voltage*:  | 
 0 ... 600 V  | 
 
  | 
 
  | 
| 
 Power per phase (3/5/10/20-position model)  | 
 
  | 
 
  | 
 600 W  | 
| 
 DC current*:  | 
 0 ... 100 А  | 
 
  | 
 
  | 
| 
 Power per phase (3/5/10/20-position model)  | 
 
  | 
 
  | 
 600 W  | 
| 
 Instability of output settings  | 
 
  | 
 
  | 
 0.03 %/min, or less  | 
| 
 Fundamental frequency  | 
 16 ... 450 Hz  | 
 0.01 Hz  | 
 
  | 
| 
 Phase angle setting range  | 
 –180° ... +180°  | 
 ±0.01°  | 
 
  | 
| 
 Harmonics  | 
 2 ... 50  | 
||
| 
 Interharmonics  | 
 0.5 ... 50.5  | 
||
| 
 Voltage dips and swells, Flicker  | 
 According to Russian state standard GOST R 8.656  | 
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* if the DC current source is present.

 Energoforma
 Software for performing automatic testing (calibration) using instruments of the Energomonitor and Energoforma family 
 Energoforma-MTS 
 Software for automatic testing of energy meters and measuring converters of current, voltage, frequency etc. with use of error calculators Calmar-S.
 EmCounter 
 Software for managing measurement logs and databases of tested devices 
 EfCalibr 
 Software for verification (calibration) of waveform generators Energoforma 3.1.
| 
 
  | 
 Suitable for testing smart meters  | 
| 
 
  | 
 High-capacity: up to 20 meters can be tested at a time  | 
| 
 
  | 
 Flexible: testing can be performed either automatically or manually  | 
| 
 
  | 
 Functional: due to the software that provides convenient tools for creating test sequences, reading and managing test results, and automatic generation of test reports.  | 


















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 User's Manual (1.55 Mb, pdf)