Electricity meter test system

Single- and three-phase test benches, reference instruments and power amplifiers to IEC and ANSI – technology from ZERA, part of the inotech group since 2026, with system integration and service from a single source.

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Three-phase electricity meter test bench with reference cabinet

POWER

up to 4,000 VA

MEASUREMENT UNCERTAINTY

≤ 0.02 %

TEST POSITIONS

1 – 60

STANDARDS

IEC & ANSI

What the system delivers

The test benches generate current and voltage via electronic power amplifiers and compare the meter pulses with a class 0.02 reference meter. Single- and three-phase meters, transformer-operated meters and combination meters are tested on the same platform.

Test sequences to IEC 62052/62053 and ANSI C12 are pre-configured, as are communication tests for smart meters including DLMS. As part of the inotech group, test software, ERP integration and service concept come from the same source as for the gas, water and heat systems.

The systems are used by meter manufacturers, network operators, metrology authorities and calibration laboratories – supported by inotech Spain Meter Calibration Systems S.L. in Barcelona.

Scope of supply

Test bench with meter holders and contacting

Reference meter and power amplifiers

Voltage and current sources with phase control

Test software with IEC and ANSI standard test sequences

Commissioning, calibration and operator training

Electricity meter test bench with reference cabinet — TEST BENCH WITH REFERENCE CABINET

Metrology detail at the test position — METROLOGY DETAIL AT THE TEST POSITION

Electrical metrology with inotech system integration

Reference class 0.02

Measurement uncertainty down to ≤ 0.02 % across the entire load and phase range.

IEC and ANSI

Test sequences to IEC 62052/62053 and ANSI C12 pre-configured.

Single- and three-phase

Direct-connected, transformer-operated and combination meters on one platform.

Smart meter tests

Communication and parameterisation tests including DLMS encryption.

Scalable

From the laboratory version to series test benches with up to 60 test positions.

Group advantage

ZERA metrology with inotech test software, ERP integration and service.

Technical specification

VALUES DEPEND ON CONFIGURATION · BINDING IN THE PROJECT DATA SHEET

Test power

up to 4,000 VA

Measurement uncertainty

≤ 0.02 % (class 0.02 reference meter)

Voltage range

3 x 30 V to 3 x 480 V

Current range

1 mA to 120 A, higher currents optional

Test positions

1 to 60

Meter types

Single- and three-phase direct, transformer-operated and combination meters

Standards

IEC 62052, IEC 62053, ANSI C12

Communication

DLMS, optical interface, manufacturer-specific protocols

Origin

ZERA metrology, part of the inotech group since 2026

Software

inotech standard user interface, identical across all system types

Interfaces

ERP/MES integration, network, database and CSV export

Documentation

Test reports, calibration certificates, ISO 17025-capable traceability

Configuration and expansion

Transformer testing

Addition of test equipment for current and voltage transformers.

Climatic testing

Testing at defined ambient temperatures for type tests.

Automated handling

Feeding and contacting of meters without operator intervention.

Retrofit

Modernisation of existing test benches to current reference technology.

Do you have specific technical requirements?

Send us your specification – meter types, flow ranges, number of test positions and the required degree of automation.

Send specification Service & calibration