Metrel Check Box

It is wise to regularly, on daily basis inspect the test system. CheckBox has a built in electronic components with reference values, which proof that the measuring system is operating correctly. A 1625 CE checkbox is intended for checking of correct measurements for instruments like MI 3394, MI 3325, or with combination of mentioned one with A 1460, or with combination of mentioned one with A 1600 plus one of connection box.

Electrical switchboards safety
- ESB Competences: Electrical Switchboards Safety Testing
- IEC/EN 61439-1 Low-voltage switchgear and controlgear assemblies - Part 1: General rules

Machine safety
- MST Competences: Machines Electrical Safety Testing
- IEC/EN 50191 Erection and operation of electrical test equipment
- IEC/EN 60950 Information technology equipment – Safety

Portable appliances safety
- PAT Competences: Portable Appliances Safety Testing
- IEC/EN 60335-1 Household and similar electrical appliances - Safety
- IEC/EN 60598-1 Luminaires - Part 1: General requirements and tests
- VDE 0701 Inspection after repair, modification of electrical appliances - periodic
- VDE 0702 Inspection on electrical appliances - general requirements for electrical safety

Instrument safety towards user
- Directive EMC 89/336/EE on electromagnetic compatibility
- IEC/EN 61010-031 Amendment 1 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 031: Safety requirements for hand-held and hand-manipulated probe assemblies for electrical test and measurement

Measuring functions
- Continuity of protective bonding;
- Insulation resistance;
- Leakage currents;
- Power measurement;
- Residual voltage (Discharging time);
- Withstanding test.

Content:
- A 1625 CheckBox
- A 1601 HV test lead with test probe, red, 1.5 m
- A 1602 HV test lead with test probe, blue, 1.5 m
- A 1493 Mains cable EU13 / Schuko, 3 x 1.5 mm2, 2 m