Description
General Specifications
Memory: Internal memory storage up to 1500 records accessible via USB portMeasuring function: Interference voltage and frequency, earthing resistance 3- and 4-pole with/without clip-on current transformer, resistance 2-pole with AC, 2- and 4-pole with DCDisplay: 4 digit (2999 Digit) - 7 segment liquid crystal display, with improved visibilityOperation: Central rotary switch and function keysTemperature RangeTemperature coefficient: +/-0.1% of reading/Deg.C < 18Deg.C > 28Deg.CType of protection: IP56 for case, IP40 for battery door according to EN60529Max voltage: Warning – socket "clamp" to socket E, ES, S or HSafety: Protection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. Pollution degree 2Quality standard: Developed, designed and manufactured to comply with DIN ISO 9001External field influence: Complies with DIN 43780 (8/76)Auxiliary power: 6 x 1.5 V alkaline (IEC LR6 or type AA)/li>Battery life span: With IEC LR6/type AA: typ. 3,000 measurements (RE+RH ? 1 kOhm) With IEC LR6/type AA: typ. 6,000 measurements (RE + RH > 10 kOhm)Case material: PolyesterMeasurement of Interference Voltage DC + AC (UST) limits of error: method: Full wave rectificationMeasuring range: 1 V to 50 VDisplay range: 0.0 V to 50 VResolution: 0.1VFrequency range: DC/AC 45 Hz to 400 Hz sineAccuracy: +/-(5% of rdg + 5 digit)Measuring sequence: Approx. 4 measurements/sInternal resistanc: Approx. 1.5 MOhmMax. overload: Urms = 250VMeasurement of Interference Frequency (F)Measuring limits of error: method: Measurement of oscillation period of the interference voltageMeasuring range: 6.0 Hz to 400 HzDisplay range: 16.0 Hz to 299.9 Hz to 999 HzResolution: 0.1 Hz to 1 HzRange: 1V to 50VAccuracy: +/-(1% of rdg + 2 digit)Earthing Resistance (RE)Measuring method: Current and voltage measurement with probe as IEC61557-5Open circuit voltage: 20/48 V, ACShort circuit current: 250 mA ACMeasuring frequency: 94, 105, 111, 128 Hz selected manually or automatic. (AFC) 55 Hz in function RNoise rejection: 120 dB (16 2/3 , 50 , 60, 400 Hz)Max. overload: Urms = 250 VElectrical Measurement SpecificationsMeasuring range: 0.020 Ohm to 300 kOhmDisplay range: 0.001 Ohm to 2.999 Ohm/3.00 Ohm to 29.99 Ohm/30.0 Ohm to 299.9 Ohm/0.300 kOhm to 2.999 kOhm/3.00 kOhm to 29.99 kOhm/30.0 kOhm to 299.9 kOhmResolution: 0.001 Ohm/0.01 Ohm/0.1 Ohm/1 Ohm/10 Ohm/100 OhmAccuracy: +/-(2% of rdg + 2 digit)Operating error: +/-(5% of rdg + 5 digit)Measuring time: Typical 8 seconds with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequenciesAdditional error because of probe-and auxiliary earth electrode resistance : RH(RS + 2000 Ohm)/RE x 1.25 x 10-6% + 5 digitsMeasuring error of RH and RS: Typ. 10% of RE + RS + RHMax. probe resistance: ? 1 MOhmMax. auxiliary earth electrode resistance: ? 1 MOhmAutomatic Switchover of Measuring Resolution in Dependence to Auxiliary Earth Electrode Resistance RHRH with Umeas = 48 V: < 300 Ohm/< 6 Ohm/< 60 Ohm/< 600 OhmRH with Umeas = 20 V: < 250 Ohm/< 2.5 kOhm/< 25 kOhm/< 250 kOhmResolution: 1 mOhm/10 mOhm/100 mOhm/1 OhmSelective Measurement of the Earthing Resistance (RE Clamp)Measuring method: Current and voltage measurement with probe as per EN61557-5 and current measurement in the individual branch with additional current transformer (patent applied for).Open circuit voltage: 20/48 V ACShort circuit current: 250 mA ACMeasuring frequency: 94, 105, 111, 128 Hz selected manually or automatically (AFC), 55 Hz (R1)Noise rejection: 120 dB (162/3, 50, 60, 400 Hz)Max. overload: Max. Urms = 250 V (measurement will not be started)Measuring range: 0.020 Ohm to 300 kOhmDisplay range: 0.001 Ohm to 2.999 Ohm/3.00 Ohm to 29.99 Ohm/30.0 Ohm to 299.9 Ohm/0.300 kOhm to 2.999 kOhm/3.00 kOhm to 29.99 kOhmResolution: 0.001 Ohm/0.01 Ohm/0.1 Ohm/1 Ohm/10 OhmAccuracy: +/-(7% of rdg + 2 digit)Operating error: +/-(10% of rdg + 5 digit)Additional error because of probe- and auxiliary earth typ. electrode resistance: RH(RS + 2000 Ohm)/RETOTAL x 1.25 x 10-6% + 5 digitsMeasuring error of RH and RS: Typ. of 10% of RETOTAL + RS + RHMeasuring time: Typ. 8 sec. with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequencies.Minimal current in single branch to be measured: 0.1 to 0.5mA With transformerMax. interference current through transformer: 3AResistance Measurement (R~)Measuring method: Current and voltage measurementMeasuring voltage: 20VAC, square pulseShort circuit current: > 250 mA ACMeasuring frequency: 94, 105, 111, 128 Hz selected manually or automatically (AFC)Measuring range: 0.020 Ohm to 300 kOhmDisplay range: 0.001 Ohm to 2.999 Ohm/3.00 Ohm to 29.99 Ohm/30.0 Ohm to 299.9 Ohm/300 Ohm to 2999 Ohm/3.00 kOhm to 29.99 kOhm/30.0 kOhm to 299.9 kOhmResolution: 0.001 Ohm/0.01 Ohm/0.1 Ohm/1 Ohm/10 Ohm/100 OhmAccuracy: +/-(2% of rdg + 2 digit)Operating error: +/-(5% of rdg + 5 digit)Measuring time: Typical 6 secondsMax. interference voltage: 24 V, with higher voltages measurement will not be startedMax overload: Urms max. = 250VResistance Measurement (R DC)Measuring method: Current- voltage measurement as per IEC61557-4 possibleMeasuring voltage: 20 VDCShort circuit current: 250 mA DCFormation of measured value: With 4-pole measurement wires on H, S, ES can be extended without additional error. Resistances > 1 Ohm in wire E can cause additional error of 5m Ohm/Ohm.Measuring range: 0.020 Ohm to 300 kOhmDisplay range: 0.001 Ohm to 2.999 Ohm/3.00 Ohm to 29.99 Ohm/30.0 Ohm to 299.9 Ohm/300 Ohm to 2999 Ohm/3.0 kOhm to 29.99 kOhm/30.0 kOhm to 299.9 kOhmResolution: 0.001 Ohm/0.01 Ohm/0.1 Ohm/1 Ohm/10 Ohm/100 OhmAccuracy: +/-(2% of rdg + 2 digit)Operating error: +/-(5% of rdg + 5 digit)Measuring sequence: Approx. 2 measurements/sMeasuring time: Typical 4 second including reversal of polarity (2-pole or 4-pole)Maximum interference voltage: ? 3 V AC or DC, with higher voltages measurement will not be startedMaximum inductivity: 2 HenryMaximum overload: Urms = 250VFeatures
- 3- and 4-Pole Fall-of-Potential (using stakes)
- 4-Pole Soil Resistivity testing (using stakes)
- Selective testing (using 1 clamp and stakes)
- Stakeless testing (using 2 clamps only) Adjustable limits - for quicker testing
- IP56 rated for outdoor use
- Rugged carrying case