Zera

Zera

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ZERA develops, manufactures and sells devices and systems for producing, measuring, testing and calibrating electrical quantities. The focus lies in meter and instrument transformer test systems as well as e-mobility (testing of charging stations). Utilities, test laboratories and instrument transformer manufacturers are among their customers worldwide. Founded as the “Zähler-Eich-und-Reparatur-Anstalt“ (Meter-Calibration-and-Repair-Institute) in 1920, ZERA evolved from a service provider for meter calibration into a highly specialized producer of testing technology.

UKAS-accredited calibration available on products covered by our Schedule of Accreditation:

Calibration Details

Products

MT320
MT320
Zera
Portable Reference Meter
MT310
MT310
Zera
Portable Reference Meter
MT30
MT30
Zera
Portable Reference Meter
EMOB32
EMOB32
Zera
Test case for AC charging stations
EMOB200-00
EMOB200-00
Zera
Test case for DC and AC charging stations
EMOB200-10
EMOB200-10
Zera
Test case for DC and AC charging stations
EMOB500
EMOB500
Zera
Test case for DC charging stations
MT551
MT551
Zera
Current & Voltage source
MT500
MT500
Zera
Current & Voltage source
MT400
MT400
Zera
Current source
CA400
CA400
Zera
Communication Adapter for Smart Meter
MT320s2
MT320s2
Zera
Portable Reference Meter
MT310s2
MT310s2
Zera
Portable Reference Meter
MT3000
MT3000
Zera
Portable Reference Meter
EMOB80
EMOB80
Zera
Test case for AC charging stations

Portable Meter Test Systems

ZERA's MT3000 and MT310 portable reference meters deliver on-site meter installation testing with accuracy classes to 0.02, with modular options for single- and three-phase energy-meter verification.

Reference Standards & Comparators

The COM3003 three-phase comparator provides reference-standard accuracy to 0.008 (AC) / 0.04 (DC) for laboratory meter calibration, alongside ZERA's stationary meter test benches for high-throughput testing.

Instrument Transformer & E-Mobility Testing

ZERA supplies instrument-transformer test systems for current and voltage transformers to IEC 61869, plus EMOB-series test cases for recurring testing and calibration of AC and DC electric-vehicle charging stations.

Calibration & UK Support

ZERA systems are available from Caltest Instruments with UK support; related AC/DC voltage, current and power parameters can be calibrated in our UKAS-accredited laboratory (No. 4432, ISO/IEC 17025:2017) — contact us to confirm coverage.