Detector de tensiune fara contact Metrel MD 105

• Adjustable test voltage from 250 V to 5000 V in 50 V steps.
• Resistance measuring range 5 T?.
• Adjustable measuring time from 1 second to 90 minutes.
• Automatic PI, DAR and DD index calculation and capacitance measurement up to 50µF.
• Automatic load discharge after completed measurement.
• Guard terminal for elimination of insulation surface currents.
• AC and DC voltage measurement up to 600 V.

 

• DC insulation resistance,
• PE conductor continuity test,
• Line and Loop resistances with Fuse evaluation table built-in,
• RCD test with Trip lock function, phase sequence in 3-phase systems,
• on-line voltage monitor,
• 3-wire Earth resistance test with built-in battery operated generator,
• Leakage Current test,
• test of Luminance with optional LUX meter probe.

 

• Insulation resistance with DC voltage
• Continuity of PE conductors with 200 mA test current with polarity change
• Continuity of PE conductors with 7 mA test current (continuous measurement) without RCD tripping
• Line impedance
• Loop impedance
• Loop impedance with Trip Lock RCD function
• TRMS voltage and frequency
• Phase sequence
• RCD testing (general and selective, type AC, A and B)
• Earth resistance (3-wire method).

 

• TRMS AC, DC voltage measurement;
• TRMS AC current measurement;
• Resistance measurement;
• Frequency measurement;
• Continuity test (acoustic signaling);
• Power parameters measurement.

 

• Measurements on earthing and lightning protection systems include: standard 4-wire method, standard 4-wire method with current clamps and 2-clamp method without junctions disassembling.
• Specific earth resistance (soil resistance).
• DC insulation resistance measurement with test voltages from 50 V up to 1000 V in 10 V steps. Measuring range up to 30 GOhm.

 

• Both IP (inductive) & IG (contact) RPM;
• ms Fuel-injection on time;
• % Duty cycle;
• Dwell angle;
• 1000V TRMS AC, DC voltage measurement;
• 10A TRMS AC, DC current measurement;
• 6uF..2mF Capacitance measurement;
• 600O..60MO Resistance measurement;
• Electric field detection;
• Temperature measurement(thermocouple type K included)

 

• 110 V … 1000 V AC measurement range
• CAT III / 1000 V overvoltage protection
• visual display indicator

 

• Supports all types of earthing resistance measurements:
• - Standard earthing resistance measurement with spikes
• - Selective earthing resistance test with one current clamp
• - Selective (contactless) earthing resistance with two current clamps
• - Specific earth resistance measurement
• Leakage current tests with current clamps
• Load current tests with current clamps
• High accuracy, very high immunity against external noise
• Preprogrammed limits

 

• Field proven instrument for under-wall low voltage installation tracing
• fuse finding
• short-circuit spot determination and metal installation tracing
• Can be used on energized or voltage-free systems.
• Tips and detailed descriptions of connection schemes for various combinations from everyday practice.

 

• IT System recognizing, Voltage Range and Voltage Balance;
• ISFL Single Fault Leakage current from Phase 1 and Phase 2 to PE;
• Fuse Trip-out Ability Evaluation, Line Impedance and Ipsc Prospective Short Circuit Current;
• IMD Insulation / ELM Earth Leakage / RCM Residual Current Monitor Devices Control;
• Alarm Trigger or Trip-Out Check and Adjust.