- 5-range testing voltage of 50v to 1000v
- Stable & medium speed digital readings
- AC/DC automatic detection
- Auto power save
- Drop proof
Hioki Insulation Tester IR4056 20
HIOKI IR4056-20 is a 5-range digital insulation tester enables faster insulation testing owing to its advanced features and efficient function.
| Rated output voltage | 50 V DC, 125 V DC, 250 V DC, 500 V DC, 1000 V DC |
|---|---|
| Effective maximum indicated value | 100 MΩ, 250 MΩ, 500 MΩ, 2000 MΩ, 4000 MΩ |
| Accuracy 1st effective measuring range MΩ | ±2 % rdg. ±2 dgt. 0.200 – 10.00 |
| Lower limit resistance | 0.05 MΩ, 0.125 MΩ, 0.25 MΩ, 0.5 MΩ, 1 MΩ |
| Overload protection | 600 V AC (10s), 660 V AC (10s) |
| DC voltage range | 4.2 V (0.001 V resolution) to 600 V (1 V resolution), 4 ranges, |
| AC voltage range | 420 V (0.1 V resolution) / 600 V (1 V resolution), 2 ranges, 50/60 Hz, |
| Low resistance range | For checking the continuity of ground wiring, 10 Ω (0.01 Ω resolution) to 1000 Ω (1 Ω resolution), 3 ranges, Basic accuracy: ±3 % rdg. ±2 dgt., testing current 200 mA or more (at 6 Ω or less) |
| Display | Semi-transmissive FSTN LCD with back lighting, bar-graph indicator |
| Response time | Approx. 0.8 second for PASS/FAIL decision (based on in-house testing) |
| Other functions | Live circuit indicator, Automatic electric discharge, Automatic DC/AC detection, Comparator, Drop proof, Auto power save |
| Power supply | LR6 (AA) alkaline batteries ×4, Continuous use: 20 hours (Comparator off, backlight off, 500 V range, no load) |
| Dimensions and mass | 159 mm (6.26 in) W × 177 mm (6.97 in) H× 53 mm (2.09 in) D, 600 g (21.2 oz) (including batteries, excluding test leads) |
| Included accessories | [IR4056-20] Test lead L9787 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4 |
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