Hioki IR4056-20 Digital Insulation Tester Japan

Description

Insulation resistance measurement

• Rated output voltage: (DC) 50 V 125 V 250 V 500 V 1000 V
• Effective maximum indicated value: 100 MΩ 250 MΩ 500 MΩ 2000 MΩ 4000 MΩ
• 1st effective measuring range: [MΩ] 0.200 to 10.00 0.200 to 25.0 0.200 to 50.0 0.200 to 500 0.200 to 1000
• Accuracy: ±2 % rdg. ±2 dgt
• 2nd effective measuring range: [MΩ] 10.1 to 100.0 25.1 to 250 50.1 to 500 501 to 2000 1010 to 4000
• Accuracy: ±5 % rdg
• Other measuring range: [MΩ] 0 to 0.199
• Accuracy: ±2 % rdg. ±6 dgt.
• Lower limit resistance value to maintain nominal output voltage: 0.05 MΩ 0.125 MΩ 0.25 MΩ 0.5 MΩ 1 MΩ

 

Basic specifications

• Indicator: Semi-transmissive FSTN LCD, Positive backlight
• Functions: Live circuit indicator, Automatic electric discharge, Automatic DC/AC detection, Comparator, Built-in battery power indicator etc.
• IR4056/ IR4058 functions Bar graph, Displaying 1-min. values
• Power supply: LR6 alkaline battery × 4
• Continuous operating time: Approx. 20 hours (Comparator off, backlight off, 500 V range, no load, Bluetooth® off)
• Storage temperature and humidity: -25 to 65°C (-13 to 149°F) 90% rh or lower (non-condensating)
• Maximum rated voltage to earth: 600 V AC/DC, Measurement category Ⅲ, Anticipated transient overvoltage: 6000 V
• Dustproof and waterproof: IP40 (EN60529)
• Standards: EN61326 (EMC), EN61557-1/ -2/ -4*1 / -10
• Drop proof: On concrete: 1 m
• Dimensions: 159W × 177H × 53D mm (6.26″W × 6.97″H × 2.09″D) (excluding protrusions)
• Mass: IR4056-20/ IR4056-21: Approx. 600 g (21.2 oz) IR4057-20/ IR4058-20: Approx. 640 g (22.6 oz) (including battery, excluding test lead)

 

• DC V
• Display range (Auto range): 4.2 V 42 V 420 V 600 V
• Accuracy: ±1.3 % rdg. ±4 dgt. *2

 

• AC V
• Display range (Auto range): 30.0 V (Minimum indicated value) 600 V
• Accuracy: ±2.3 % rdg. ±8 dgt. *2
• Measurement principles: Average responding type
• Frequency range: 50/ 60 Hz

 

 

Low resistance measurement

• Display range (Auto range): 10 Ω 100 Ω 1000 Ω
• Maximum indicated value: 10.00 Ω 100.0 Ω 1000 Ω
• Resolution 0.01 Ω 0.1 Ω 1 Ω
• Accuracy (after zero adjustment): 0 to 0.19 Ω: ±3dgt. 0.20 to 10.00 Ω: ±3%rdg. ±2dgt. ±3%rdg. ±2dgt
• Overload protection: 600 VAC (10s, using fuse)

The IR4056-20 and IR4057-20 notify the operator of pass and fail judgments using a beeping sound, LCD light,

comparator indicator on the test lead with remote control switch (optional accessory),

DROP PROOF
1-meter drop onto a concrete floor

Integrated hard case with sliding cover
With cover closed

AC/DC voltage measurement (With AC/DC automatic detection function)
Use as a tester replacement thanks to DC voltage measurement functionality,

which is useful in applications involving solar power and electric vehicles (EVs).

 

Easy-to-see LCD
An FSTN LCD ensures the instrument’s display is easy to read from any angle

 

Backlight (White LED)
A backlight makes it possible to work in dark or poorly lit locations.

IR4056-20 Economic model
Rated output voltage (DC): 5 ranges 50/125/250/500/ 1000 V
Voltage measurement: Yes
Resistance measurement: yes
Comparator judgment result response time: Approx. 0.8 s
200 mA continuity: yes
Bar graph: yes
Dimensions(mm): 159W×177H×53D
Mass(g):600