M74 is one of four models of new MULTITEST family of portable meters, which included also M72, M73 and M75 meters, designed to perform Global Earth Resistance measurements, trip out time test on AC RCD type, Insulation and Continuity of earth conductors according to VDE and IEC common standards on typical urban electrical installations. Powerful AUTOTEST feature permits to M74 to quickly perform an automatic sequence of the above tests directly to the plugs of electrical plants with OK or NOT OK response results.M74 meter also include others features as phase sequence with 1 wire method, leakage current with optional transducer clamp and a powerful DMM function for TRMS measures of voltage and current ideal for troubleshooting operations both in civil and industrial environments. Voltage and current peak measure on 1ms it's also ok for inrush current evaluation of electrical motor devices.As each model of MULTITEST family also M74 have a large LCD display for easy readings, a modern and ergonomic external case, a innovative electronic function selector for easy to use and a protection rubber holder to prevent accidental damaged.

STANDARD

CE mark
EN 61557-4 Continuity test
EN 61557-2 Insulation Resistance
EN 61557-5 Earth resistance
EN 61557-6 RCD test
EN 61326 EMC Standards
EN 61010-1
16th edition
VDE 0413

FUNCTION

SAFETY TEST SECTION

• Continuity test of protective conductors with 200mA
• Insulation Resistance with 250, 500VDC
• Trip-out time of RCDs type AC Standard
• Test current selectable; 30mA, 30x5mA, 100mA, 300mA
• Global Earth Resistance without RCD tripping
• Global Earth Resistance with 0.1Ohm resolution
• AUTOTEST function: automatic test of Global Earth Resistance + RDC test + Insulation test

MULTIMETER SECTION

• DC Voltage
• AC TRMS Voltage
• Automatic detection of AC/DC signals
• AC TRMS Current with optional clamp
• AC TRMS Leakage current with optional clamp
• Resistance
• Continuity test with buzzer
• Frequency with test leads
• Frequency with optional clamp
• Phase sequence with 1 or 2 wires method
• Phase coincidence with 1 or 2 wires method
• MIN/MAX/AVG functions
• PEAK function with response time 1ms
• HOLD function
• Auto Power OFF