Description

The Hioki ST5520-01 Insulation Tester is a reliable and accurate tool for measuring insulation resistance in electrical systems. With its DC voltage method and measurement range from 25 V to 1000 V, this tester is suitable for a variety of applications.

Whether you’re working in a laboratory, factory, or field, the ST5520-01 provides fast and slow measurement speeds to suit your needs. Its internal memory allows you to save up to 10 items, including rated measurement voltage, comparator upper limit /lower limit values, test mode, beep sound, test time, response time, resistance range, and measurement speed.

Hioki ST5520-01 Key Features

The ST5520-01 features a 4-level backlight LCD display and analog output of DC +4 V f.s. It also has an RS-232C interface for external control and judgment result, as well as a BCD output (ST5520-01 only).

Measurement items: Insulation resistance (Applied DC voltage method)
Testing voltage: 25 V ≤ V 100 V ≤ V 500 V ≤ V ≤ 1000 V
Basic accuracy: ±2 % rdg. ±5 dgt.
Measurement speed: Fast: 30 ms/time, Slow: 500 ms/time (selectable)
Display: LCD (service life: 100,000 hours), 4-level backlight
Internal memory: Saved items: rated measurement voltage, comparator upper limit /lower limit values, test mode, beep sound to distinguish the result, test time, response time, resistance range, measurement speed
Comparator setting: UPPER_FAIL: Measured value ≥ upper limit value PASS: Upper limit value > measured value > lower limit value LOWER_FAIL: Measured value ≤ lower limit value
Judgement process: Beep sound, PASS / U.FAIL/L. FAIL: light up on LED display, When UL_FAIL, U.FAIL / L.FAIL light up simultaneously, EXT.I/O output, judgement result can be obtained via RS-232C
Test duration: Definition of test duration: Test duration = Response time + Measurement time
Function: Set the time from voltage application until pass/fail assessment
Configuration range: 0.045 s to 999.999 s (0.001 s resolution)
Response time timer: After the start of the test, comparator judgment operation can be prohibited until a set interval from 0.005 sec. to 999.999 sec. (at 0.001 sec. resolution) has passed.
Analog output: DC +4 V f.s.
Interface: RS-232C (standard), External I/O (External control input, Judgment result) BCD output (ST5520-01 only)
Power supply: 100 to 240 V AC, 50/60 Hz, 25 VA max.
Dimensions and mass: 215 mm (8.46 in)W × 80 mm (3.15 in)H × 166 mm (6.54 in)D, 1.1 kg (38.8 oz)
Included accessories: Instruction Manual ×1, Power cord ×1, EXT. I/O Connector ×1, Connector Cover ×1

Who Needs the Hioki ST5520-01?

The Hioki ST5520-01 Insulation Tester is designed for professionals who require accurate and reliable insulation resistance testing in various applications. Whether you’re working in a laboratory, factory, or field, this tester is suitable for a variety of tasks, including maintenance, troubleshooting, and quality control.

With its fast and slow measurement speeds and internal memory, the ST5520-01 is an ideal tool for professionals who need to perform multiple tests quickly and efficiently.

Additionally, the ST5520-01 is designed to meet the needs of professionals who require a high level of accuracy and reliability in their testing. Its basic accuracy of ±2 % rdg. ±5 dgt. ensures that you can trust the results of your tests.

Hioki ST5520-01 Applications

The Hioki ST5520-01 Insulation Tester is suitable for a variety of applications, including:

Electrical maintenance and troubleshooting
Quality control and testing
Research and development
Field testing and inspection

Why Buy Hioki ST5520-01 from mme-ae?

Browse our insulation testers. Read more in our electrical safety standards guide.

At mme-ae, we offer the Hioki ST5520-01 Insulation Tester at a competitive price, along with excellent customer service and support. Our team of experts is available to answer any questions you may have and provide guidance on the use of the tester.

We also offer a 30-day money-back guarantee and a 1-year warranty on all our products, including the ST5520-01.

Hioki ST5520-01 Specifications

Measurement items	Insulation resistance (Applied DC voltage method)
Testing voltage	(Measurement range: AUTO/MANUAL setting is possible) 25 V ≤ V < 100 V (2.000/20.00/200.0 MΩ), 100 V ≤ V < 500 V (2.000/20.00/200.0/2000 MΩ), 500 V ≤ V ≤ 1000 V (2.000/20.00/200.0/4000 MΩ)
Basic accuracy	±2 % rdg. ±5 dgt. 25 V ≤ V < 100 V [0 to 20 MΩ] 100 V ≤ V < 500 V [0 to 20 MΩ] 500 V ≤ V ≤ 1000 V [0 to 20 MΩ]
Measurement speed	Fast: 30 ms/time, Slow: 500 ms/time (selectable)
Display	LCD (service life: 100,000 hours), 4-level backlight
Internal memory	Saved items: rated measurement voltage, comparator upper limit /lower limit values, test mode, beep sound to distinguish the result, test time, response time, resistance range, measurement speed Memory capacity: up to 10 items (can be saved/loaded)
Comparator setting	UPPER_FAIL: Measured value ≥ upper limit value PASS: Upper limit value > measured value > lower limit value LOWER_FAIL: Measured value ≤ lower limit value
Judgement process	Beep sound, PASS / U.FAIL/L. FAIL: light up on LED display, When UL_FAIL, U.FAIL / L.FAIL light up simultaneously, EXT.I/O output, judgement result can be obtained via RS-232C
Test duration	Definition of test duration: Test duration = Response time + Measurement time Function: Set the time from voltage application until pass/fail assessment Configuration range: 0.045 s to 999.999 s (0.001 s resolution)
Response time timer	After the start of the test, comparator judgment operation can be prohibited until a set interval from 0.005 sec. to 999.999 sec. (at 0.001 sec. resolution) has passed.
Analog output	DC +4 V f.s.
Interface	RS-232C (standard), External I/O (External control input, Judgment result) BCD output (ST5520-01 only)
Power supply	100 to 240 V AC, 50/60 Hz, 25 VA max.
Dimensions and mass	215 mm (8.46 in)W × 80 mm (3.15 in)H × 166 mm (6.54 in)D, 1.1 kg (38.8 oz)
Included accessories	Instruction Manual ×1, Power cord ×1, EXT. I/O Connector ×1, Connector Cover ×1