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5-Range, 50 to 1000V Digital Insulation Tester with Continuity Check. Economic model.
Hioki iR4057-50
High-Speed Insulation Resistance Tester
Hioki insulation testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The IR4057-50 is a 5-range, 50 V to 1000 V digital insulation resistance tester with bargraph and delivers efficient functions and features to help shorten work time associated with field insulation testing.
Comparator Function Provides PASS/FAIL Decisions at a Glance
Compare measured values to pre-set reference values to generate a pass or fail judgment with the Comparator function.
The insulation testers give you pass/ fail results using a beeping sound, LCD light, and indication right on the test lead with remote control switch*, letting you check for insulation integrity without needing to look at the instrument.
* Image shows L9788 probe. Sold separately.
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.
Easy-to-Use Measurement Switch
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.
* Image shows model IR4016. IR4057 is a digital meter.
Wireless Support: Wireless communication capability for even greater convenience (Z3210 Wireless Adapter sold separately)
DescriptionHioki IR4056-20 Digital Meg-Ohm Insulation Tester
5-Range Insulation & Continuity Tester
Instant Judgment PASSWhen the measured value is greater than or equal to the reference value*
No Change
Green
FAILWhen the measured value is less than the reference value*
Red
Red
Bar graph: Useful in determining compliance of circuits with a large capacitance component, for example solar panels, due to the ability to illustrate charging status behavior. The Hioki IR4056-20 insulation tester delivers enhanced comparator (comparative judgment) functionality and notification of judgment results using light and sound, allowing operators to assess results at a glance, yielding significant improvements in work efficiency. In The Box
Manuals/Guides
Manuals
Manufacturer Specs |
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IR4056-20 Economic model |
IR4057-20 Bar graph for visual judgments Economic model High-speed model |
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5 ranges 50/125/250/500/1000 V |
Rated output voltage (DC) | 5 ranges 50/125/250/500/1000 V |
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Resistance measurement | ||||||
Approx. 0.8 s | Comparator judgment result response time | Approx. 0.3 s | ||||
200 mA continuity | ||||||
- | Bar graph | |||||
159W×177H×53D | Dimensions (mm) | 159W×177H×53D | ||||
600 | Mass (g) | 640 | ||||
Voltage measurement |
INSULATION RESISTANT MEASUREMENT | |||||
Rated output voltage (DC) | 50V | 125V | 250V | 500V | 1000V |
Effective maximum indicated value | 100 MΩ | 250 MΩ | 500 MΩ | 2000 MΩ | 4000 MΩ |
Effective medium value | 2 MΩ | 5 MΩ | 10 MΩ | 50 MΩ | 100 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 | ±4 % rdg | ||||
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 | ±8 % 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 |
Overload protection | 600 VAC (10 s) | 1200 VAC (10 s) | |||
BASIC SPECIFICATION | |||||
Indicator | 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. | ||||
IR4057-20 Functions | Bar graph, Displaying 1-min. Values | ||||
Power source | LR6 alkaline battery × 4 | ||||
Continuous operating time | Approx. 20 hours (Comparator off, backlight off, 500 V range, no load) |
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Auto Power Save | The power will go off automatically 10 minutes after the last operation. | ||||
Operating temperature and humidity | 0 to 40°C (32 to 104°F) 90% RH or lower (non-condensating) |
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Storage temperature and humidity | -10 to 50°C (14 to 122°F) 90% RH or lower (non-condensating) |
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Maximum rated voltage to earth | 600 V AC/DC, Measurement Category, Anticipated Transient Ωvervoltage: 6000 V |
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Dielectric strength | 7060 V AC, 50/60 Hz, Measurement terminals - electrical enclosure, 1 min, current sensitivity 1 mA | ||||
Degree of protection | IP40 | ||||
Standards | EN61326 (EMC), EN61557-1/ -2/ -4*/ -10 | ||||
Drop proof | Ωn concrete: 1 m | ||||
Dimensions | Approx. 159W×177H×53D mm (6.26"W×6.97"H×2.09"D) (excluding protrusions) |
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Mass | IR4056-20: Approx. 600g (21.2 oz) IR4057-20: Approx. 640g (22.6 oz) (including battery, excluding test lead) |
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Accessories | Test Lead L9787 × 1, Neck strap × 1, Instruction manual × 1, LR6 alkaline battery × 4 | ||||
VOLTAGE MEASUREMENT | |||||
DC V |
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Display range (Auto range) |
4.2 V | 42 V | 420 V | 600 V | |
Maximum indicated value | 4.200 V | 42.00 V | 420.0 V | 750 V | |
Resolution | 0.001 V | 0.01 V | 0.1 V | 1 V | |
Accuracy | ±1.3 % rdg. ±4 dgt. * | ||||
AC V |
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Display range (Auto range) |
420 V (Minimum indicated value: 30.0 V) |
600 V | |||
Maximum indicated value | 420.0 V | 750 V | |||
Resolution | 0.1 V | 1 V | |||
Accuracy | ±2.3 % rdg. ±8 dgt. * | ||||
Measurement Principles | Average responding type | ||||
Frequency range | 50/60 Hz | ||||
AC/DC automatic detection range | AC detected at 30 V or greater (50/60 Hz) (Pulsating currents with an overlapping AC component of 30 V or greater are detected as AC) | ||||
Effect of temperature | Measurement accuracy per 1°C × 0.1 (Applicable to the operating temperature range other than 18 to 28°C) | ||||
RESISTANCE MEASUREMENT | |||||
Display range (Auto range) |
10 Ω | 100 Ω | 1000 Ω | ||
Maximum indicated value | 10.00 W | 100.0 W | 1000 W | ||
Resolution | 0.01 W | 0.1 W | 1 W | ||
Accuracy (after zero adjustment) |
0 to 0.19 W: ±3dgt. 0.20 to 10.00 Ω: ±3%rdg. ±2dgt. |
±3%rdg. | ±2dgt. | ||
Measuring current | 200 mA or more (at 6 Ω or less ) (Display value before zero adjustment) |
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Overload protection | 600 VAC (10s, using Fuse) |
Micro / Milli / Meg Ohmmeters/Megohmmeter / Insulation Resistance Testers Template |
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IR Test Voltage | 1,000 V, 125V, 250 V, 50 V, 500 V |
Maximum Insulation Resistance | 4 G Ohms |
Type | Battery |
Minimum Insulation Resistance | 0.2 Ohms (0.0000000002 G Ohms) |
Variable Incremental Voltage | No |
Display (Megohmmeter) | Digital |
Continuity Test | Yes |
Live Circuit Voltage Detection | No |
Power Supply | Battery |
Timer | No |
CAT Rating | III |
CAT Voltage | 600 V |
Test Equipment General Attributes |
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Unique Features | Comparator function for easy Pass/Fail judgement Drop Proof to 1M White LED Backlight Integrated hard case with sliding cover |
Warranty | 2 YEARS |
Safety Approval | CE |
IP Rating | IP40 |
Product Weight | 600 GRAMS (1.32 LBS) |
Product Height | 6.97 IN |
Product Length | 6.26 IN |
Product Width | 2.09 IN |
Data Logging | No |
HTS/Schedule B Number | 9030333400 |
ECCN Number | 3A992 |
Calibration Included | None |
Battery Type | AA |
Power Supply Voltage | Battery Powered |
Country of Origin | Japan |
Shipping Height | 2.25 IN |
Shipping Length | 7.00 IN |
Shipping Width | 6.25 IN |
As an important international instrument sales platform, our company has the authorization qualifications of many international first-line brands. Relying on the advanced digital information management platform and international procurement platform, we provide more than 100,000 instruments, industrial MRO products, industrial products and spare parts to global customers. Our business scope: industrial testing, non-destructive testing, gas testing, electrical testing, laboratory testing, water quality testing, environmental testing, medical testing...
So far, we have become an important partner of many global top 500 companies and well-known local Chinese companies. Create an efficient supply chain system to provide customers with strong supply guarantee.