General Specifications |
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 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 |
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. 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 x 133 x 187 mm (9.75 x 5.25 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 to 50 V |
Display range |
0.0 V to 50 V |
Resolution |
0.1 V |
Frequency range |
DC/AC 45 Hz to 400 Hz sine |
Accuracy |
±(5% of rdg + 5 digit) |
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 to 400 Hz |
Display range |
16.0 Hz to 299.9 Hz to 999 Hz |
Resolution |
0.1 Hz to 1 Hz |
Range |
1 V to 50 V |
Accuracy |
±(1% of rdg + 2 digit) |
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, 105, 111, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R1 |
Noise rejection |
120 dB (16 2/3 , 50 , 60, 400 Hz) |
Max. overload |
Urms = 250 V |