3-Range, 250 to 1000V Analog Insulation Tester with Continuity Check
Hioki 3490 เครื่องวัดความเป็นฉนวนหรือเมกะโอห์มมิเตอร์ มาในรูปแบบ All-in-one ด้วยการออกแบบให้ตัวเครื่องอยู่ในเคสที่แข็งแรงทนทานและมาพร้อมกับ Test lead ในตัว และ 3 ช่วงการวัดแบบอนาล็อกตั้งแต่ 100MΩ (250V) / 100MΩ (500V) / 4000MΩ (1000V) นอกจากนี้ยังมีฟังก์ชั่นที่จะช่วยให้คุณประหยัดเวลาในการทำงานได้อีกด้วย
• 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
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3-range 250V・500V/1000MΩ 1000V/2000MΩ, easy-to-read scale for insulation resistance values |
Robust, damage-resistant designThese instruments feature a robust design that can withstand being dropped onto concrete from a height of 1 m. Difficult to damage, this insulation tester is ideal for use in the field. |
White LED lighting that’s easy to read in dim locations in the fieldThe scale is lit by a white LED, ensuring that insulation resistance values are easy to read, even when using the instrument in a dim location. |
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Continuous monitoring of battery lifeYou can keep track of remaining battery life since it’s shown on the LED, eliminating the need to worry about sudden loss of battery power in the field. |
Function rotary switch designed for maximum safetyThis insulation tester has voltages grouped by application with an “OFF” position between them to help keep users from inadvertently applying the wrong voltage. |
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 |
±2 % of scale length |
±2 % of scale length |
Lower limit resistance |
0.25 MΩ |
0.5 MΩ | 1 MΩ |
(Measurement resistance value to maintain testing voltage) |
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Overload protection |
660 V AC (10 sec.) |
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Low resistance range |
3 Ω (at 200 mA testing current), ±0.09 Ω accuracy, |
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AC voltage range |
0 to 600 V (50/60 Hz), ±5 % of maximum scale value accuracy, |
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Other functions |
Bright LED luminous scale, Drop proof (on concrete, 1 m/1 time), Battery check, Live circuit check, Auto discharge |
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Power supply |
LR6 (AA) alkaline batteries ×4, Continuous use: 20 hours (at 500 V range, no load) |
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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) |
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Accessories |
Test lead L9787 ×1, Instruction manual ×1, Shoulder strap ×1, LR6 (AA) alkaline batteries ×4 |
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