Hioki insulation testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The 3490 is a 3-range, 250/500/1000V analog insulation resistance meter with efficient functions and features to help shorten work time associated with field insulation testing.
CAT III 600 V
Key Features
• 3-range testing voltage of 250/500 V (insulation resistance testing up to 100 MΩ), and 1000 V (insulation testing up to 4000 MΩ)
• Continuity check at 3 Ω range via 200 mA testing
• Bright LED luminous scale
• Check for live circuits and battery status
| Rated output voltage | 250 V DC, 500 V DC, 1000 V DC |
|---|---|
| Effective maximum indicated value | 100 MΩ, 100 MΩ, 4000 MΩ |
| Accuracy 1st effective measuring range | ±2 % of scale length 0.05 to 50 MΩ |
| Lower limit resistance | 0.25 MΩ, 0.5 MΩ, 1 MΩ |
| Overload protection | 660 V AC (10 sec.) |
| Low resistance range | 3 Ω (at 200 mA testing current), ±0.09 Ω accuracy, |
| AC voltage range | 0 to 600 V (50/60 Hz), ±5 % of maximum scale value accuracy, |
| Other functions | Bright LED luminous scale, Drop proof (on concrete, 1 m/1 time), Battery check, Live circuit check, Auto discharge |
| Power supply | LR6 (AA) alkaline batteries ×4, Continuous use: 20 hours (at 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, 610 g (21.5 oz), (including battery, excluding test lead) |
| Included accessories | Test lead L9787 ×1, Instruction manual ×1, Shoulder strap ×1, LR6 (AA) alkaline batteries ×4 |
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