·5 레인지 절연 저항계(50 V/100 MΩ ~ 1000 V/4000 MΩ)
·안정적인 고속의 측정속도, 콤퍼레이터 양불판정 응답 시간 0.3 초
·콘크리트에 1m 자유낙하에도 견디는 내충격 설계
·어두운 현장에서 유용한 고휘도 백색 LED 조명(L9788-11 or L9788-10 별매시 사용가능)
·200mA 의한 도통 체크 기능
·AC/DC 전압계가 내장되어 있어 태양광발전 및 전기자동차 등에 유용함.
·IR4057-20 모델과 동일한 사양
Basic specifications (Accuracy guaranteed for 1 year)
Testing voltage | 50V DC | 125V DC | 250V DC | 500V DC | 1000V DC |
Effective maximum indicated value | 100 MΩ | 250 MΩ | 500 MΩ | 2000 MΩ | 4000 MΩ |
Accuracy 1st effective measuring range MΩ | ±4% rdg. 0.200 - 10.00 | ±4% rdg. 0.200 - 25.0 | ±4% rdg. 0.200 - 50.0 | ±4% rdg. 0.200 - 500 | ±4% rdg. 0.200 - 1000 |
Lower limit resistance | 0.05 MΩ | 0.125 MΩ | 0.25 MΩ | 0.5 MΩ | 1 MΩ |
Overload protection | AC 600 V (10s) | AC 1200 V (10s |
DC voltage measurement | 4.2V (0.001V resolution) to 600V (1V resolution), 4 ranges, Accuracy: ±1.3% rdg. ±4 dgt., Input resistance: 100 kΩ or higher |
AC voltage measurement | 420V (0.1V resolution) / 600V (1V resolution), 2 ranges, 50/60 Hz, Accuracy: ±2.3% rdg. ±8 dgt., Input resistance: 100 kΩ or higher, Average rectifier |
Low resistance measurement | 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. 0.3 second for PASS/FAIL decision (at HIOKI's conditions) |
Other functions | Indicate MΩ measurement value after a lapse of one minute, 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 (at HIOKI’s conditions) Number of measurements: 1000 times (at 5 s ON, 25 s OFF cycle, insulation measure of lower limit resistance value to maintain nominal output voltage) |
Dimensions, mass | 159 mm (6.26 in) W × 177 mm (6.97 in) H× 53 mm (2.09 in) D, 640 g (22.6 oz) (including batteries, excluding test leads) |
Supplied accessories | TEST LEAD L9787 ×1, Neck strap ×1, Instruction Manual ×1, LR6 (AA) alkaline batteries ×4 |
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