| Manufacturer part number (MPN) | 4325181 |
| Brand | Fluke |
| Category | Tools |
| 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 |
| 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 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 |
| 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) |
| 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 |
| 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 its |
| Accuracy | ±(5% of rdg + 5 digit) |
| Measuring sequence | Approx. 4 measurements/s |
| Internal resistance | Approx. 1.5 MΩ |
| Max. overload | Urms = 250 V |
| Range | 1 V to 50 V |
| 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) |
| Reference Conditions or Specified Operating Range | Designation Code |
| Intrinsic error Reference conditions | A |
| Position Reference position ±90° | E1 |
| Supply voltage At the limits stated by the manufacturer | E2 |
| Temperature 0°C and 35°C | E3 |
| Series interference voltage See 4.2 and 4.3 | E4 |
| 0 to 100 x RA but ≤ 50 kΩ | E5 |
| System frequency 99% to 101% of the nominal frequency | E7 |
| System voltage 85% to 110% of the nominal voltage | E8 |
| Operating error B = ±(|A| + 1,15 √E21 E22 E23 E24 E25 E26 ) | Part 5, 4.3 |
| 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 frequencies |
| Measuring error of RH and RS | Typ. 10% of RE + RS + RH |
| Max. probe resistance | ≤ 1 MΩ |
| Max. auxiliary earth electrode resistance | ≤ 1 MΩ |
| RH with Umeas = 48 V | < 300 Ω |
| RH with Umeas = 20 V | < 250 Ω |
| Minimal current in single branch to be measured 0.5 mA | With transformer (1000:1) |
| Minimal current in single branch to be measured 0.1 mA | With transformer (200:1) |
| Max. interference current through transformer 3 A | With transformer (1000:1) |
| Measuring voltage | 20 V AC, square pulse |
| Max. interference voltage | 24 V, with higher voltages measurement will not be started |
| 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. |
| 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 |
| Switch position | RA 4-pole (two clamp Stakeless) |
| Noise current (IEXT) | Max. IEXT = 10 A (AC) (RA < 20 Ω) |