Possible measurements:

• earth resistance measurment with 3-pole method,
• measurement of continuity of equipotential bondings and protective conductors with auto-zero function - with current 200 mA,
• resistance measurement using 2-pole method.

Measurement of earthing resistance 
measurement range to IEC61557 - 5:
0,50 Ω...1,99 kΩ for Un=50 V;
0,68 Ω...1,99 kΩ for Un=25 V;

• measurement current: under short circuit >20 mA,
• voltage on open terminals: selectable <25 V AC or <50 V AC,
• frequency of measurement current: 125 Hz

Measurement of interference voltage U_N (RMS)

• measurement for DC and AC 45…65 Hz

Measurement of resistance of auxiliary electrodes R_H i R_S

Measuremet of continuity of equipotential bondings and protective conductors 
measurement range to IEC61557 - 4: 0,13 Ω...199 Ω

• measuring method: technical 2-pole method,
• max. voltage on open terminals: 13 V,
• measurement current: under short circuit >200 mA,
• auto-zero function for measurement leads

Electric security:

• type of insulation: double, according to EN 61010 - 1and IEC 61557
• measurement category: CAT IV 300 V acc. to EN 61010 - 1
• protection class acc. to EN 60529: IP54

Rated operational conditions:

• operation temperature: -10...+55°C
• storage temperature: -20...+70°C
• humidity: 20...80%

Other technical data:

• LCD display: segment, backlit
• interface: USB,
• number of measurements carried out of set of batteries: > 1000 (5 Ω, 2 meas./min.)
• warranty: 2 years
• dimentions: 288 x 223x75 mm
• weigth: 1,4 kg