Leírás
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. 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 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 |