Single-Range 500V/1000MΩ Analog Insulation Tester
Hioki insulation testers or megohmmeters feature all-in-one designs
including built-in rugged cases and test lead storage compartments.
The IR4017-20 is a single-range, 500V/1000MΩ analog insulation
resistance tester with efficient functions and features to help
shorten work time associated with field insulation testing.

Model No. (Order Code)

IR4017-20500 V/ 1000 MΩ, Test Lead L9787 bundled



Key Features

• Single range testing voltage of 500 V
• Test insulation resistance up to 1000 MΩ
• Built tough to withstand a 1-meter drop onto a concrete floor
• Bright LED luminous scale
• Check for live circuits and battery status
• Integrated hard case for quick and easy storage without disconnecting the leads

Single 500 V/1000 MΩ range with simple, easy-to-read scale for insulation resistance values


Robust, damage-resistant design

These 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 field

The 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.
Continuous monitoring of battery life

You 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.
Measurement switch designed for outstanding ease of use

The instrument’s measurement switch can be operated with just the thumb. Press for a single measurement or lift up for continuous measurement of insulation resistance.
Remote control to start and stop insulation resistance measurement from the leads

By using switch-equipped measurement leads, you can start and stop insulation resistance measurement remotely. There’s also a handy light for improved convenience when working in dim locations.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Rated output voltage500 V DC
Effective maximum indicated value1000 MΩ
Accuracy 1st effective measuring range+/-2 % of scale length
1 to 500 MΩ
Lower limit resistance0.5 MΩ (measurement resistance value to maintain testing voltage)
Overload protection600 V AC (10 sec.)
AC voltage range0 to 600 V (50/60 Hz), ±5 % of maximum scale value accuracy,
500 kΩ or more input resistance
Other functionsBright LED luminous scale, Drop proof (on concrete, 1 m/1 time), Battery check, Live circuit check, Auto discharge
Power supplyLR6 (AA) alkaline batteries ×4, Continuous use: 20 hours (no load)
Dimensions and mass159 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)
AccessoriesTest Lead L9787 ×1, LR6 (AA) alkaline batteries ×4, Instruction manual ×1, Shoulder strap ×1
Catalog: ANALOG MΩ HiTESTER SERIES IR4016, IR4017, IR4018, 3490Download PDF  [1MB]English

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