top of page
Power & Utilities
Meter Testing
Power Quality
Time Synchronisation
Meter Testing
Portable Reference Meter
We offer a series of reference meters which fulfil the most varied requirements in terms of current and voltage measurement as well as functionality and configuration. With accuracy classes from 0.2 (MT10/MT30) to 0.02 (MT3000), they are primarily used to check meter installations on-site. All units are used to detect the actual measured values and present them as a table or in selectable presentation forms. The latest devices of the s2 series have some special features and, for example, additionally display the compliance within the error limits in the range of the measurement deviation of a meter. In addition, the MT3x0s2 is used in combination with the test cases of the EMOB series for testing and calibrating AC or DC charging stations for e-vehicles.
Portable Sources
Portable current sources and current-voltage sources
While testing of meter installations on-site often a sufficient load is missing to achieve reliable results. You can generate currents up to 120 A and voltages up to 500 V with our sources.
While testing of meter installations on-site often a sufficient load is missing to achieve reliable results. You can generate currents up to 120 A and voltages up to 500 V with our sources.
Portable Test System
Reference meter and source in one
Our definition of Test Systems is a Reference Meter with integrated source. Test systems are particularly usable for testing meter installations with defined current and voltage and only one single device should be used. Brand new in our product range is the MT786 standard set – a complete predefined package for on-site meter testing with the most common accessories.
Our definition of Test Systems is a Reference Meter with integrated source. Test systems are particularly usable for testing meter installations with defined current and voltage and only one single device should be used. Brand new in our product range is the MT786 standard set – a complete predefined package for on-site meter testing with the most common accessories.
Reference Standards
Our Reference Standards achieve excellent results for accuracy and reliability. This product line is especially for Metrological Institutes important because of its national and international reliability.
Stationary Meter Test System AC
Our complete systems for testing AC meters are designed for quality testing and functional testing of your meter. They provide the most accurate readings and durable performance. We know how important accuracy is when testing AC meters. That's why our products feature advanced technology and are built to last. Don't settle for less when it comes to testing your AC electricity meter. Choose ZERA for your complete AC meter testing system and enjoy the peace of mind that comes with top-of-the-line equipment.
Stationary Meter Test System DC
Our complete systems for testing DC meters are designed for quality testing and functional testing of your meter. They provide the most accurate readings and durable performance. We know how important accuracy is when testing AC meters. That's why our products feature advanced technology and are built to last. Don't settle for less when it comes to testing your AC electricity meter. Choose ZERA for your complete AC meter testing system and enjoy the peace of mind that comes with top-of-the-line equipment.
Digital Power Meter
DPM Hz
Enclosure Protection for dust and water:
Conforms to IP 50 (front face) as per IEC60529
Compliance to International Safety standards
Compliance to International Safety standard IEC 61010-1- 2010
EMC Compatibility
Compliance to International standard IEC 61326
Conforms to IP 50 (front face) as per IEC60529
Compliance to International Safety standards
Compliance to International Safety standard IEC 61010-1- 2010
EMC Compatibility
Compliance to International standard IEC 61326
LM1340
Complaince of IEC 61557-12
Energy Measurement as per IEC 62053-22 / 23
Energy Measurement as per IEC 62053-22 / 23
Delta Energy
Enclosure Protection for dust and water
Conforms to IP 50 (for front face) & IP 20 (for back)
EMC Compatibility
Compliance to International standard IEC 61326
Conforms to IP 50 (for front face) & IP 20 (for back)
EMC Compatibility
Compliance to International standard IEC 61326
EM3490DS
Dual Source Energy Measurements
Rish EM 3490 DS features two energy integrator Utility & Generator. In normal operation meter accumulates energy counts in utility register & when utility shutdowns and control input signal of (10 to 60V DC/ 20 to 300V AC) is present on generator sensor energy starts accumulating in Generator register.
Enclosure Protection for dust and water
Conforms to IP 54 (front face) as per IEC60529
Compliance to International Safety standards
Compliance to International Safety standard IEC 61010-1- 2001
EMC Compatibility
Compliance to International standard IEC 61326.
Acuvim II
The Acuvim II Series power and energy meters are the simple, robust solution for power monitoring, kWh metering, power quality analysis, and more. This multifunction meter is engineered for easy integration into any project environment and a wide array of plug-in expansion modules facilitate communication on over 15 different industry-standard protocols.
AcuDC 240
The AcuDC 240 is a DC energy meter designed to monitor and control DC power systems with a wide range of measurement parameters such as voltage, current, power and energy. The AcuDC 240 supports bi-directional current measurement used in net metering, solar PV, and wind turbine power generation as well as other applications such as transportation systems, cellular communication towers, power distribution systems, and IT networks. It can also be equipped with digital inputs for switch monitoring, relay outputs for remote control, and an over-range alarming.
Instrument Transformer & Switchgear Testing
Testing of current transformers (CT)
ITTS (CT-VT-80)
Standard Current Module
Nominal current max. 10000 A, 1 A/5 A.
Standard Current Module
Nominal current max. 10000 A, 1 A/5 A.
Primary Testing
Constant Current Source
cascadable amplifiers at each 8 kVA, 50 Hz/60 Hz
cascadable amplifiers at each 8 kVA, 50 Hz/60 Hz
Complete systems CT-VT
ITTS (CT-VT-80)
This product shows an example of the maximum configuration level of a test system for testing instrument current and voltage transformers.
This product shows an example of the maximum configuration level of a test system for testing instrument current and voltage transformers.
Electrical Safety Tester
Testing of Electric Installations and Systems
The new installation testers included in the PROFITEST MF series are ideally matched to the electrician’s requirements and are specially designed for the implementation of electrical tests in installations and systems – day in, day out.
The MF series represents the consistent further development of the well-established PROFITEST series with its unique operating concept. The intuitive rotary switch for quick selection of measuring and control functions, as well as the high-resolution, context-sensitive color graphic display – in conjunction with automatic test sequences – provide the user with practical operating convenience.
Thanks to highly diverse application options with various accessories and adapters, users are also well prepared for future challenges. New measuring functions and test sequences can be imported by means of a simple firmware update –our service guarantee for you, so that you’ll still be up to date even 10 years down the road!
The MF series represents the consistent further development of the well-established PROFITEST series with its unique operating concept. The intuitive rotary switch for quick selection of measuring and control functions, as well as the high-resolution, context-sensitive color graphic display – in conjunction with automatic test sequences – provide the user with practical operating convenience.
Thanks to highly diverse application options with various accessories and adapters, users are also well prepared for future challenges. New measuring functions and test sequences can be imported by means of a simple firmware update –our service guarantee for you, so that you’ll still be up to date even 10 years down the road!
Testing of Electric Devices
Test instrument with standards-compliant test sequences for testing the electrical safety of devices after repair and for periodic testing including IZYTRONIQ data processing software
The SECUTEST ST PRO provides all measuring and test functions for testing the effectiveness of protective measures at electrical medical devices, as well as welding equipment – with predefined as well as programmable test sequences which are required in accordance with test standards EN 50699/ EN 50678 (VDE 0701-0702), IEC/EN 62353 (VDE 0751) and IEC/EN 60974-4 (VDE 0544-4).
The SECUTEST ST PRO provides all measuring and test functions for testing the effectiveness of protective measures at electrical medical devices, as well as welding equipment – with predefined as well as programmable test sequences which are required in accordance with test standards EN 50699/ EN 50678 (VDE 0701-0702), IEC/EN 62353 (VDE 0751) and IEC/EN 60974-4 (VDE 0544-4).
Testing of Electric Machines
Test instrument for testing the effectiveness of protective measures in electrical installations per IEC 60364-6 and DIN EN 50110-1, machines and systems per DIN EN 60204-1 and DIN EN 61439-1, PV systems per DIN EN 62446 and electric charging stations per IEC 61851-1.
The PROFITEST PRIME is a test instrument for testing the effectiveness of protective measures in electrical installations per IEC 60364-6 and DIN EN 50110-1, machines and systems per DIN EN 60204-1 and DIN EN 61439-1, PV systems per DIN EN 62446 and electric charging stations per IEC 61851-1.
The PROFITEST PRIME is a test instrument for testing the effectiveness of protective measures in electrical installations per IEC 60364-6 and DIN EN 50110-1, machines and systems per DIN EN 60204-1 and DIN EN 61439-1, PV systems per DIN EN 62446 and electric charging stations per IEC 61851-1.
Earthing. Insulation, Low Resistance
Earthing Resistance and Low-Resistance Measuring Instrument.
The Metraline Earth facilitates professional measurement of earthing resistance and low-resistance measurement with ≥ 200 mA in accordance with EN 61557-4 / VDE 0413-4.
The Metraline Earth facilitates professional measurement of earthing resistance and low-resistance measurement with ≥ 200 mA in accordance with EN 61557-4 / VDE 0413-4.
Testing Technology for Battery Storage
Mobile test instrument for evaluation, maintenance and inspection of battery systems and uninterruptable power supplies (UPS).
Mobile battery tester for voltage measurement; measurement for the electrical internal resistance and the electrochemical impedance of a battery block; capacity test via logging of current values and voltage curves; integrated Bluetooth interface, integrated IrDA interface for connecting a density sensor DMA 35, RFID transponder function (125 kHz).
Mobile battery tester for voltage measurement; measurement for the electrical internal resistance and the electrochemical impedance of a battery block; capacity test via logging of current values and voltage curves; integrated Bluetooth interface, integrated IrDA interface for connecting a density sensor DMA 35, RFID transponder function (125 kHz).
Test Technology for E-Mobility
Diagnostic Tester and Test Adapter for AC Charging Points per IEC 61851-1, VDE 0122-1
The PROFITEST H+E EXPERT CHECK is used to test AC charging points in charging mode 3 with type 2 connector socket or permanently attached type 2 cable.
The PROFITEST H+E EXPERT CHECK is used to test AC charging points in charging mode 3 with type 2 connector socket or permanently attached type 2 cable.
Universal Multimeters
Range of TRMS Digital Multimeters with ± 12,000 Digits – Extremely Rugged and Reliable with Housings Made of Impact Resistant ABS and Ultramodern Technology
The new generation of STARLINE instruments including METRAHIT AM BASE, AM PRO, AM TECH and AM X-TRA, are extremely rugged, reliable digital multimeters with housings made of impact-resistant plastic. They feature an ultramodern design and are equipped with state-of-the-art technology.
The new generation of STARLINE instruments including METRAHIT AM BASE, AM PRO, AM TECH and AM X-TRA, are extremely rugged, reliable digital multimeters with housings made of impact-resistant plastic. They feature an ultramodern design and are equipped with state-of-the-art technology.
Multimeters for Medical Technology and Hygienically Sensitive Areas
System Multimeter for the Field of Medical Technology, antimicrobial
The measurement and testing of measuring equipment in the field of medical technology necessitates absolute reliability and a broad range of applications. The SECULIFE HIT AM has been custom tailored to fulfill these demands: It’s the ideal device for testing, training and production in the field of medical technology.
The measurement and testing of measuring equipment in the field of medical technology necessitates absolute reliability and a broad range of applications. The SECULIFE HIT AM has been custom tailored to fulfill these demands: It’s the ideal device for testing, training and production in the field of medical technology.
Single-Element Measuring Instruments
Multimeter, Milliohmmeter and Data Logger
The METRAHIT IM TECH BT is a Multi- and Milliohmmeter with Data Logger.
It is well suited for service and diagnostics for electric machines and systems, in electric machinery manufacturing and in aviation technology as well as for test and measurement in laboratories and test fields.
The METRAHIT IM TECH BT is a Multi- and Milliohmmeter with Data Logger.
It is well suited for service and diagnostics for electric machines and systems, in electric machinery manufacturing and in aviation technology as well as for test and measurement in laboratories and test fields.
Network Testers
Cost-efficient cable testers Made in Germany!
The KE7000 Cable Tester is a cost-effective tester for patch, LAN and telecommunication cabling as well as for coaxial cables by means of an optional adapter.
The KE7000 Cable Tester is a cost-effective tester for patch, LAN and telecommunication cabling as well as for coaxial cables by means of an optional adapter.
Power Supply Technology
Programmable DC power supply – 3000 W, 60 V, 120 A
SYSKON series instruments are fast, accurate, analog and digitally programmable DC power supplies, which are ideally suited for automated test sequences. In addition to diverse programming capabilities, the instruments offer outstanding output values with regard to speed, accuracy and residual ripple.
SYSKON series instruments are fast, accurate, analog and digitally programmable DC power supplies, which are ideally suited for automated test sequences. In addition to diverse programming capabilities, the instruments offer outstanding output values with regard to speed, accuracy and residual ripple.
Measurement & Control
Energy Management
ENERGYMID – Multifunctional Energy Meter 4-wire system and direct connection 5 (80) A
The MID approved meters can be used to acquire and bill active energy in industrial, household, commercial and building management applications.
The MID approved meters can be used to acquire and bill active energy in industrial, household, commercial and building management applications.
Load Optimization
Transparent power quality and energy consumption monitoring
The CENTRAX CU5000 combines the functionality of a highly accurate instrument for heavy current applications with the possibilities of a freely programmable Soft-PLC in one housing. The connection of the process environment may be performed by communication interfaces, via digital I/Os, analog outputs or relays.
The CENTRAX CU5000 combines the functionality of a highly accurate instrument for heavy current applications with the possibilities of a freely programmable Soft-PLC in one housing. The connection of the process environment may be performed by communication interfaces, via digital I/Os, analog outputs or relays.
Power Analysis
MAVOWATT 230 three-phase energy and power disturbance analyzers
The MAVOWATT 230, 240, 270 product range is offering a new generation of world-class power quality, power and energy measuring instruments for measurements in 1000 V CAT III and 600 V CAT IV applications.
The MAVOWATT 230, 240, 270 product range is offering a new generation of world-class power quality, power and energy measuring instruments for measurements in 1000 V CAT III and 600 V CAT IV applications.
Residual Current Management
Transparent power quality and energy consumption monitoring
Position Sensor Technology
Transmitter with a contact free, capacitive sensor system for the acquisition of the angular position of a shaft.
Other Measuring, Open-loop and Closed-loop Control Technology
Measuring Transducer for Angle of Rotation, for Hollow Shafts, Rugged Design, Ex/NEx
Converts the angular position of a shaft into a load independent direct current signal, proportional to the angular shaft position. The unit is contact free.
Converts the angular position of a shaft into a load independent direct current signal, proportional to the angular shaft position. The unit is contact free.
E-Mobility Testing
ZERA EMOB 32 – Precision AC Charging Station Tester (Up to 32A)
The ZERA EMOB 32 is a high-performance testing device designed for AC electric vehicle charging stations. Supporting current measurements up to 32A, it features a Type 2 connector (EU standard) and is ideal for verifying the accuracy and safety of EVSE installations. Whether you're a utility provider, EV infrastructure developer, or technical inspector, the EMOB 32 ensures reliable and compliant charging station performance.
Key Features:
Accurate current measurement up to 32A AC
Type 2 connector for EU-standard EV chargers
Compact and robust design for field and lab use
Integrated safety verification system
Ideal for commissioning and periodic testing
Key Features:
Accurate current measurement up to 32A AC
Type 2 connector for EU-standard EV chargers
Compact and robust design for field and lab use
Integrated safety verification system
Ideal for commissioning and periodic testing
ZERA EMOB 200 – Advanced AC/DC EV Charging Station Tester (Up to 200A DC)
The ZERA EMOB 200 is a professional-grade test device designed for on-site verification of AC and DC electric vehicle charging stations. Supporting current measurements up to 32A AC and 200A DC, it features Type 2 and CCS2 connectors (EU standard), making it suitable for both standard and high-current fast chargers.
Engineered for precision and portability, the EMOB 200 includes integrated safety checks, temperature monitoring, and overcurrent detection. Its battery-powered operation and guided test sequences via WinSAM software make it ideal for field technicians, utility providers, and EV infrastructure developers.
Key Features:
Direct current measurement: up to 32A AC / 200A DC
Voltage measurement: up to 300V AC / 1000V DC
Connector types: Type 2 and CCS2 (EU)
Integrated safety and overcurrent detection
Temperature monitoring of high-current contacts
Battery-powered for independent operation
Fast setup with permanent connection to reference meter (MT3x0s2)
Controlled via tablet and WinSAM software
Engineered for precision and portability, the EMOB 200 includes integrated safety checks, temperature monitoring, and overcurrent detection. Its battery-powered operation and guided test sequences via WinSAM software make it ideal for field technicians, utility providers, and EV infrastructure developers.
Key Features:
Direct current measurement: up to 32A AC / 200A DC
Voltage measurement: up to 300V AC / 1000V DC
Connector types: Type 2 and CCS2 (EU)
Integrated safety and overcurrent detection
Temperature monitoring of high-current contacts
Battery-powered for independent operation
Fast setup with permanent connection to reference meter (MT3x0s2)
Controlled via tablet and WinSAM software
Stationary Systems for Testing AC Charging Stations
AC meter testing up to 120 A (AC) and 320 V (AC)
The MTS310 source and test system uses the Reference Meter EPZ303, which is capable of measuring AC currents of up to 120 A. The new digital measuring system of the STM4000 series serves as an “error calculator”, i.e. it determines the measurement deviation of the DUT. The system is extendable for additional test positions. A necessary DUT connection can be supplied on request.
The MTS310 source and test system uses the Reference Meter EPZ303, which is capable of measuring AC currents of up to 120 A. The new digital measuring system of the STM4000 series serves as an “error calculator”, i.e. it determines the measurement deviation of the DUT. The system is extendable for additional test positions. A necessary DUT connection can be supplied on request.
Stationary Systems for Testing DC Charging Stations
DC meter testing up to 1000 A (DC) and 1200 V (DC)
The MTS780 source and test system uses the Reference Meter of the new s2 series (MT310s2), which, together with a high-precision DC transducer, forms a measuring unit capable of measuring DC currents of up to 1000 A. The reference meter serves not only as a reference device but also as an “error calculator”, i.e. it also determines the measurement deviation of the DUT. The system is extendable for additional test positions. A necessary DUT connection can be supplied on request.
The MTS780 source and test system uses the Reference Meter of the new s2 series (MT310s2), which, together with a high-precision DC transducer, forms a measuring unit capable of measuring DC currents of up to 1000 A. The reference meter serves not only as a reference device but also as an “error calculator”, i.e. it also determines the measurement deviation of the DUT. The system is extendable for additional test positions. A necessary DUT connection can be supplied on request.
Power Quality Meter
SINEAX® AM3000
Power Monitoring Devices (PMD) for recording all electrical parameters.
144 x 144 mm for panel mounting.
Features
-Average power values with trend analysis to avoid load peaks
-Optional: load curve storage with fluctuation bandwidth (min/max) per interval
-Active energy class 0.2S, reactive energy class 0.5S (HT/NT, supply/discharge), programmable resolution
-Other averages and counters with selectable base size
-IEC61850-Interface
144 x 144 mm for panel mounting.
Features
-Average power values with trend analysis to avoid load peaks
-Optional: load curve storage with fluctuation bandwidth (min/max) per interval
-Active energy class 0.2S, reactive energy class 0.5S (HT/NT, supply/discharge), programmable resolution
-Other averages and counters with selectable base size
-IEC61850-Interface
SINEAX® AM1000
Power Monitoring Devices (PMD) for recording all electrical parameters.
96 x 96 mm for panel or DIN rail mounting.
Features
-Harmonic analysis according to IEC 61000-4-7
-1500 information about power consumption, power system status and power quality
-Panel-mounting device in 96 x 96 mm
-Disturbance recorder: voltage events according to IEC 61000-4-30
-IEC61850-Interface
96 x 96 mm for panel or DIN rail mounting.
Features
-Harmonic analysis according to IEC 61000-4-7
-1500 information about power consumption, power system status and power quality
-Panel-mounting device in 96 x 96 mm
-Disturbance recorder: voltage events according to IEC 61000-4-30
-IEC61850-Interface
SINEAX® DM5000
Power Monitoring Device (PMD) for recording heavy current variables in the distribution grid.
DIN rail device with or without display.
Features
-Harmonic analysis according to IEC 61000-4-7
-Mains condition monitoring: Class 0.1 (U/I), Class 0.2 (P/Q/S)
-DIN rail unit
-Fault recorder: voltage events according to IEC 61000-4-30
-IEC61850-Interface
DIN rail device with or without display.
Features
-Harmonic analysis according to IEC 61000-4-7
-Mains condition monitoring: Class 0.1 (U/I), Class 0.2 (P/Q/S)
-DIN rail unit
-Fault recorder: voltage events according to IEC 61000-4-30
-IEC61850-Interface
LINAX PQ5000 Rack
Characteristics
-Analysis of two power grids (e.g. double busbar, transformer)
-Optional data transmission via mobile network and synchronization via GPS
-Current measurement via current transformer (5 A) or small signal sensors (< 3 V)
-Extended fault recording through time-synchronous 12(24) digital inputs
-ENEL GSTQ001, GSTQ002, GSTQ009 compliant
Power quality monitoring in the electrical network in a 19" rack according to EN 60297
Acuvim 3 Series
The Acuvim 3 Series is a certified IEC 61000-4-30 power quality meter by NMi with revenue grade energy metering capabilities. It offers PQ analysis by capturing waveform, harmonics, frequency, transients, voltage, and current at high precision. Measurements are sampled at high speed data rates, a 32 GB data log storage capacity, event trigger detection and EN50160/IEEE519 compliant reports.
UMG 512-PRO
Class A voltage quality analyzer with RCM
Rish PQA
RiSH PQA measurement as per EN50160
-Voltage Swell & Dip Detection.
-Voltage Variation Detection.
-Detection of Voltage Interruptions.
-Unbalance Detection & Measurements.
-Frequency Variation Measurement.
-Per Phase Individual Harmonic Measurement as per IEC 61000-4-7 up to 63rd harmonic, Group and Sub-Group Harmonics Measurement
-Individual, Group and Sub-Group Inter-Harmonics Detection & Measurement.
-Thresholds as per EN50160 or user selectable thresholds.
-%THD of per Phase Voltage & Current.
-Measurement of RMS Value of Harmonics.
-Time Stamping for Power Quality Disturbances.
-Voltage Swell & Dip Detection.
-Voltage Variation Detection.
-Detection of Voltage Interruptions.
-Unbalance Detection & Measurements.
-Frequency Variation Measurement.
-Per Phase Individual Harmonic Measurement as per IEC 61000-4-7 up to 63rd harmonic, Group and Sub-Group Harmonics Measurement
-Individual, Group and Sub-Group Inter-Harmonics Detection & Measurement.
-Thresholds as per EN50160 or user selectable thresholds.
-%THD of per Phase Voltage & Current.
-Measurement of RMS Value of Harmonics.
-Time Stamping for Power Quality Disturbances.
Alarm Annunciator
ME3011B
The ME3011B alarm annunciator offers modular alarm monitoring with up to 252 fields, GPS sync, and Modbus RTU communication—ideal for power systems and industrial facilities.
ANTRON
Antron alarm annunciators provide reliable fault indication and event monitoring for industrial and utility systems. Modular, configurable, and built for critical infrastructure.
6 window vertical Alarm Annunciator
Discover Alan’s MLD-02 series alarm annunciator featuring 4 to 64 window options, fail-safe operation, and universal power input for critical monitoring systems.
24 Windows Alarm Annunciator
This Alarm Annunciator's bright, easy-to-read LED display offers immediate visual feedback, enabling you to immediately determine the condition of your alarms at a look. With configurable alarm settings, you may adapt the annunciator to your particular requirements. To fit your specific application, you may simply change alarm priority, delay times, and acknowledgment standards. Our annunciator can concurrently monitor a wide variety of crucial parameters. You may rely on this Alarm Annunciator to keep you informed about any factors, including temperature, pressure, flow rates, and others.
Customized Alarm Annunciator
The Alan alarm annunciator offers reliable fault indication with LED windows, audible alerts, and programmable logic—ideal for industrial and utility applications.
Industrial Grade Clock
Banking & Financial Institutions
Financial institutions rely on precise time synchronization for transaction accuracy, audit trails, and regulatory compliance.
Power & Energy Companies
Power and energy companies use synchronized time for grid stability, fault analysis, and operational efficiency.
Broadcast & Media
Broadcast and media companies depend on synchronized clocks for timecode accuracy, live event coordination, and content scheduling.
Medical and
Pharmaceutical Companies
Medical and pharmaceutical sectors rely on precise timekeeping for patient safety, compliance, and research accuracy.
Education Industry
Educational institutions use synchronized clocks to manage class schedules, exams, and campus-wide coordination.
Public Sector, Military & Government
Discover timekeeping systems that support national security, public services, and mission-critical operations.
bottom of page