• Gossen Metrawatt

Compact device tester for DGUV-compliant testing

Gossen Metrawatt has further expanded its METRALINE product series. Adding the METRALINE PAT, the measurement technology specialist has launched an economical, intuitive device for testing portable equipment in accordance with DGUV Regulation 3. (DGUV is the umbrella association of German statutory occupational accident institutions.)


Weighing only 1.3 kg, the compact device tester enables a wide range of protection tests and individual measurements, which can be accessed via shortcut buttons. The tester covers all necessary measurements for repaired or modified electrical devices as well as repeat tests according to DIN VDE 0701-0702. This includes safe and fast testing and measurement of protective conductor resistance, insulation resistance, PE current, touch current, and voltage in SELV circuits.

The tester features automatic rating according to normative limits for measuring protective conductor resistance, insulation resistance, leakage currents, and voltages in ELV circuits. All active tests are carried out in just one step, including functional testing and displaying the RMS values. The high-contrast LC display clearly shows selection menus, available settings, limits, measurements, notes, error messages, and I/O settings. Plain text operation with schematic circuit diagrams as well as red and green signaling LEDs for evaluation of measured values simplify testing. The tester runs on 230 VAC mains voltage. The tested device is connected via the 16 A test socket. METRALINE PAT ensures safe testing by checking the protective ground conductor of the power connection, checking the tested device for short circuits, and triggering an automatic shutdown in case of dangerous leakage currents. The tester features USB and Bluetooth interfaces to transmit measurement and test data. This enables operators using the ELEXONIQ METRALINE app (available in the Google Play store) to feed measured values via Bluetooth to the IZYTRONIQ testing software that supports multiple devices.

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