Detailed Specifications | General | Memory | Internal memory storage up to 1500 records accessible via USB port | Measuring 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 DC
| Display | 4 digit (2999 Digit) - 7 segment liquid crystal display, with improved visibility | Operation | Central rotary switch and function keys | Temperature Range | Operating Temperature | -10°C - 50°C (14°F - 122°F) | Storage Temperature | -30°C - 60°C (-22°F - 140°F) | Temperature Coefficient | +/- 0.1% of reading/°C <18°C > 28°C | Type of Protection | IP56 for case, IP40 for battery door according to EN60529 | Max Voltage | Warning – socket "clamp" to socket E, ES, S or H | Urms = 0 V | Sockets E, ES, S or H to each other in any combination, max. Urms = 250 V (pertains to misuse) | Safety | Protection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. 300V CAT II, Pollution degree 2 | Quality Standard | Developed, designed and manufactured to comply with DIN ISO 9001 | External Field Influence | Complies with DIN 43780 (8/76) | Auxiliary Power | 6 x 1.5 V alkaline (IEC LR6 or type AA) | Battery Life Span | With IEC LR6/type AA: typ. 3,000 measurements (RE+RH ≤ 1 kΩ) | With IEC LR6/type AA: typ. 6,000 measurements (RE + RH > 10 kΩ) | Dimensions (W x H x D) | 250 mm x 133 mm x 187 mm (9.75 in x 5.25 in x 7.35 in) | Weight | ≤ 1.1 kg (2.43 lb) without accessories 7.6 kg (16.8 lb) incl. accessories and batteries in carrying case | Case Material | Polyester | Measurement of Interference Voltage DC + AC (UST) | Measuring Limits of Error: Method | Full wave rectification | Measuring Range | 1 V - 50 V | Display Range | 0.0 V - 50 V | Resolution | 0.1 V | Frequency Range | AC/DC 45 Hz - 400 Hz sine | Accuracy | +/- (5% of RDG + 5 digits) | Measuring Sequence | approx. 4 measurements/s | Internal Resistance | approx. 1.5 MΩ | Max. Overload | Urms = 250 V | Measurement of Interference Frequency (F ) | Measuring Limits of Error: Method | Measurement of oscillation period of the interference voltage | Measuring Range | 6.0 Hz - 400 Hz | Display Range | 16.0 Hz - 299.9 Hz - 999 Hz | Resolution | 0.1 Hz - 1 Hz | Range | 1 V - 50 V | Accuracy | +/- (1% of RDG + 2 digits) | Earthing Resistance (RE) | Measuring Method | Current and voltage measurement with probe as IEC61557-5 | Open Circuit Voltage | 20/48 V, ac | Short Circuit Current | 250 mA AC | Measuring Frequency | 94 Hz, 105 Hz, 111 Hz, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R* | Noise Rejection | 120 dB (16 2/3 Hz , 50 Hz , 60 Hz, 400 Hz) | Max. Overload | Urms = 250 V | Electrical Measurement Specifications | Intrinsic Error or Influence Quantity | Reference Conditions or Specified Operating Range | Designation Code | Requirements or Test in Accordance with the Relevant Parts of IEC 1557 | Type of Test | Intrinsic Error | Reference conditions | A | Part 5, 6.1 | R | Position | Reference position +/- 90° | E1 | Part 1, 4.2 | R | Supply Voltage | At the limits stated by the manufacturer | E2 | Part 1, 4.2, 4.3 | R | Temperature | 0°C - 35°C | E3 | Part 1, 4.2 | T | Series Interference Voltage | See 4.2 and 4.3 | E4 | Part 5, 4.2, 4.3 | T | Resistance of the Probes and Auxiliary Earth Electrodes | 0 to 100 x RA but ≤ 50 kΩ | E5 | Part 5, 4.3 | T | System Frequency | 99% - 101% of the nominal frequency | E7 | Part 5, 4.3 | T | System Voltage | 85% - 110% of the nominal voltage | E8 | Part 5, 4.3 | T | Operating Error | B = +/- (|A| + 1,15 √E21 E22 E23 E24 E25 E26 ) | Part 5, 4.3 | R | A = intrinsic error En = variations R = routine test T = type test | B[%] = ± B/fiducial value x 100% | Measuring Range | 0.020 Ω - 300 kΩ | Display Range | 0.001 Ω - 2.999 Ω | 3.00 Ω - 29.99 Ω | 30.0 Ω - 299.9 Ω | 0.300 kΩ - 2.999 kΩ | 3.00 kΩ - 29.99 kΩ | 30.0 kΩ - 299.9 kΩ | Resolution | 0.001 Ω | 0.01 Ω | 0.1 Ω | 1 Ω | 10 Ω | 100 Ω | Accuracy | +/- (2% of RDG + 2 digits) | Operating Error | +/- (5% of RDG + 5 digits) | Measuring Time | Typical 8 s with a fixed frequency 30 s max. with AFC and complete cycle of all measuring frequencies | Additional Error Because Oof Probe-and Auxiliary Earth Electrode Resistance | RH(RS + 2000 Ω)/RE x 1.25 x 10-6% + 5 digits | Measuring Error of RH and RS | Typ. 10% of RE + RS + RH | Max. Probe Resistance | ≤ 1 MΩ | Max. Auxiliary Earth Electrode Resistance | ≤ 1 MΩ | Automatic check if error is kept within the limits required by IEC61557-5. If after a measurement of probe-, auxiliary earth electrode- and earthing resistance, a measurement error of higher than 30 % is assumed because of the influencing conditions, the display shows a warning symbol and a notice that RS or RH are too high. Automatic Switchover of Measuring Resolution in Dependence to Auxiliary Earth Electrode Resistance RH | RH with Umeas = 48 V | < 300 Ω | < 6 Ω | < 60 Ω | < 600 Ω | RH with Umeas = 20 V | < 250 Ω | < 2.5 kΩ | < 25 kΩ | < 250 kΩ | Resolution | 1 mΩ | 10 mΩ | 100 mΩ | 1 Ω | Selective 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 VAC / 48 VAC | Short Circuit Current | 250 mA AC | Measuring Frequency | 94 Hz, 105 Hz, 111 Hz, 128 Hz selected manually or automatically (AFC), 55 Hz (R*) | Noise Rejection | 120 dB (162/3 Hz, 50 Hz, 60 Hz, 400 Hz) | Max. Overload | Max. Urms = 250 V (measurement will not be started) | Measuring Range | 0.020 Ω - 300 kΩ | Display Range | 0.001 Ω - 2.999 Ω | 3.00 Ω - 29.99 Ω | 30.0 Ω - 299.9 Ω | 0.300 kΩ - 2.999 kΩ | 3.00 kΩ - 29.99 kΩ | Resolution | 0.001 Ω | 0.01 Ω | 0.1 Ω | 1 Ω | 10 Ω | Accuracy | +/- (7% of RDG + 2 digits) | Operating Error | +/- (10% of RDG + 5 digits) | Additional Error Because of Probe- and Auxiliary Earth typ. Electrode Resistance | RH(RS + 2000 Ω)/RETOTAL x 1.25 x 10-6% + 5 digits | Measuring Error of RH and RS | Typ. of 10% of RETOTAL + RS + RH | Measuring Time | Typical 8 s with a fixed frequency 30 s max. with AFC and complete cycle of all measuring frequencies. | Minimal Current in Single Branch to be Measured | 0.5 mA | With transformer (1000:1) | 0.1 mA | With transformer (200:1) | Max. Interference Current Through Transformer | 3 A | With transformer (1000:1) | * With recommended current clamps/transformers. Resistance Measurement (R~) | Measuring Method | Current and voltage measurement | Measuring Voltage | 20 V AC, square pulse | Short Circuit Current | > 250 mA AC | Measuring Frequency | 94 Hz, 105 Hz, 111 Hz, 128 Hz selected manually or automatically (AFC) | Measuring Range | 0.020 Ω - 300 kΩ | | Display Range | 0.001 Ω - 2.999 Ω | 3.00 Ω - 29.99 Ω | 30.0 Ω - 299.9 Ω | 300 Ω - 2999 Ω | 3.00 kΩ - 29.99 kΩ | 30.0 kΩ - 299.9 kΩ | Resolution | 0.001 Ω | 0.01 Ω | 0.1 Ω | 1 Ω | 10 Ω | 100 Ω | Accuracy | +/- (2% of RDG + 2 digits) | Operating Error | +/- (5% of RDG + 5 digits) | Measuring Time | Typical 6 s | Max. Interference Voltage | 24 V, with higher voltages measurement will not be started | Max. Overload | Urms max. = 250 V | Resistance Measurement (R DC) | Measuring Method | Current- voltage measurement as per IEC61557-4 possible | Measuring Voltage | 20 V DC | Short Circuit Current | 250 mA DC | Formation of Measured Value | With 4-pole measurement wires on H, S, ES can be extended without additional error. Resistances > 1 Ω in wire E can cause additional error of 5m Ω/Ω. | Measuring Range | 0.020 Ω - 300 kΩ | Display Range | 0.001 Ω - 2.999 Ω | 3.00 Ω - 29.99 Ω | 30.0 Ω - 299.9 Ω | 300 Ω - 2999 Ω | 3.0 kΩ - 29.99 kΩ | 30.0 kΩ - 299.9 kΩ | Resolution | 0.001 Ω | 0.01 Ω | 0.1 Ω | 1 Ω | 10 Ω | 100 Ω | Accuracy | +/- (2 % of RDG + 2 digits) | Operating Error | +/- ( 5% of RDG + 5 digits) | Measuring Sequence | Approx. 2 measurements/s | Measuring Time | Typical 4 s including reversal of polarity (2-pole or 4-pole) | Maximum Interference Voltage | ≤ 3 V AC or DC, with higher voltages measurement will not be started | Maximum Inductivity | 2 Henry | Maximum Overload | Urms = 250 V | Compensation of Lead Resistance (RK) | Compensation of lead resistance (RK) can be switched on in functions RE 3-pole, RE 4-pole (clamp), R ac, and R dc 2-pole | Formation of measured value | Rdisplay = Rmeasured - Rcompensated* | * Value of setpoint entry RK = 0.000 Ω, variable from 0.000 to 29.99 Ω by means of measuring adjustment. Stakeless Ground Loop Measurement (Two Clamp Stakeless) | Switch Position | RA 4-pole (two clamp Stakeless) | Resolution | 0.001 Ω - 0.1 Ω | Measuring Range | 0.02 Ω - 199.9 Ω | Accuracy | +/- (7 % RDG + 3 digits) | Operating Error | +/- (10% RDG + 5 digits) | Measuring Voltage | Vm = 48 V AC (primary) | Measuring Frequency | 128 Hz | Noise Current (IEXT) | Max. IEXT = 10 A (AC) (RA < 20 Ω) | Max. IEXT = 2 A (AC) (RA > 20 Ω) | |
View All Part Numbers