Specifications
General Specifications Display: 1999 digit LCD Display with special symbols, digit height 25 mm, fluorescent backlight User interface Instant measurement through TURN and START one button concept. The only operating elements are rotary switch and START button Robust, water and dust resistant Instrument is designed for tough environmental conditions (rubber protective cover, IP56) Memory Internal memory storage up to 1500 records accessible via USB port Temperature Range Operating temperature -10°C to 50°C (14°F to 122°F) Storage temperature -30°C to 60°C (-22°F to 140°F) Temperature coefficient ±0.1% of reading/°C < 18°C > 28°C Intrinsic error Refers to the reference temperature range and is guaranteed for 1 year Operating error Refers to the operating temperature range and is guaranteed for 1 year Climatic class C1 (IEC 654-1), -5°C to +45°C (23° to +115° F), 5% to 95% RH Protective type IP56 for case, IP40 for battery door according to EN60529 Safety Protection by double and/or reinforced insulation. max. 50 V to earth. IEC61010-1: Pollution degree 2 EMC (emission immunity) IEC61326-1: Portable Quality system Developed, designed and manufactured according to DIN ISO 9001 External voltage V ext, max = 24 V (DC, AC < 400 Hz), measurement inhibited for higher values V ext rejection > 120 dB (162⁄3, 50, 60, 400 Hz) Measuring time Typical 6 seconds Max. overload 250 V rms (pertains to misuse) Auxiliary power 6 x 1.5 V Alkaline (type AA LR6) Battery life span Typical > 3,000 measurements Dimensions (W x H x D) 250 x 133 x 187 mm (9.75 x 5.25 x 7.35 in) Weight 1.1 kg (2.43 lb) including batteries
7.6 kg (16.8 lb) incl. accessories and batteries in carrying caseRA 3-Pole Ground Resistance Measurement (IEC 1557-5) Switch position RA 3-pole Resolution 0.001 Ω to 10 Ω Measuring range 0.020 Ω to 19.99 kΩ Accuracy ±(2% rdg + 3 d) Operating error ±(5% rdg + 3 d) Measuring Principle: Current/Voltage Measurement Measuring voltage Vm = 48 V AC Short-circuit current > 50 mA Measure frequency 128 Hz Probe resistance (RS) Max 100 kΩ Auxiliary earth electrode resistance (RH) Max 100 kΩ Additional error from RH and RS RH[kΩ]•••RS[kΩ]/RA[Ω]•••0.2% Monitoring of RS and RH with error indicator.
Automatic range selection.
Measurement is not performed if the current through the current clamp is too low.RA 4-Pole Ground Resistance Measurement (IEC 1557-5) Switch position RA 4-pole Resolution 0.001 Ω to 10 Ω Measuring range 0.020 Ω to 19.99 kΩ Accuracy ±(2% rdg + 3 d) Operating error ±(5% rdg + 3 d) Measuring Principle: Current/Voltage Measurement Measuring voltage Vm = 48 V AC Short-circuit current > 50 mA Measure frequency 128 Hz Probe resistance (RS + RES) Max 100 kΩ Auxiliary earth electrode resistance (RH) Max 100 kΩ Additional error from RH and RS RH[kΩ]•••RS[kΩ]/RA[Ω]•••0.2% Monitoring of RS and RH with error indicator.
Automatic range selection.RA 3-Pole Selective Ground Resistance Measurement with Current Clamp (RA with Clamp ) Switch position RA 3-pole with clamp Resolution 0.001 Ω to 10 Ω Measuring range 0.020 Ω to 19.99 kΩ Accuracy ±(7% rdg + 3 d) Operating error ±(10% rdg + 5 d) Measuring Principle: Current/Voltage Measurement (with External Current Clamp) Measuring voltage Vm = 48 V AC Short-circuit current > 50 mA Measure frequency 128 Hz Probe resistance (RS) Max 100 kΩ Auxiliary earth electrode resistance (RH) Max 100 kΩ Monitoring of RS and RH with error indicator.
Automatic range selection.
Measurement is not performed if the current through the current clamp is too low.RA 4-Pole Selective Ground Resistance Measurement with Current Clamp (RA with Clamp ) Switch position RA 4-pole with clamp Resolution 0.001 Ω to 10 Ω Measuring range 0.020 Ω to 19.99 kΩ Accuracy ±(7% rdg + 3 d) Operating error ±(10% rdg + 5 d) Measuring Principle: Current/Voltage Measurement (with External Current Clamp) Measuring voltage Vm = 48 V AC Short-circuit current > 50 mA Measure frequency 128 Hz Probe resistance (RS) Max 100 kΩ Auxiliary earth electrode resistance (RH) Max 100 kΩ Monitoring of RS and RH with error indicator.
Automatic range selection.
Measurement is not performed if the current through the current clamp is too low.Stakeless Ground Loop Measurement (2 Clamps) Switch position RA 4-pole 2 clamps Resolution 0.001 Ω to 10 Ω Measuring range 0.020 Ω to 19.99 kΩ Accuracy ±(7% rdg + 3 d) Operating error ±(10% rdg + 5 d) Measuring Principle: Stakeless Measurement of Resistance in Closed Loops Using Two Current Transformers Measuring voltage Vm = 48 V AC Measure frequency 128 Hz Noise current (IEXT) Max. IEXT = 10 A (AC) (RA < 20 Ω) Max. IEXT = 2 A (AC) (RA > 20 Ω)