Simplify Electrical Safety Testing with the Hioki 3153
Electrical safety testing is a critical part of product quality assurance for manufacturers of electrical devices, components, and assemblies. To meet safety standards efficiently, production teams need instruments that can combine reliable test performance with automation-ready operation. The Hioki 3153 Automatic Insulation / Withstanding HiTESTER is designed for exactly that purpose, combining insulation resistance testing and AC/DC withstand voltage testing in a single platform for automated electrical safety testing workflows.
One of the 3153’s biggest strengths is its all-in-one design. Hioki states that the tester supports programmable insulation testing from 50 V to 1200 V DC and dielectric strength testing from 0.2 kV to 5.00 kV AC or DC, allowing users to perform multiple safety tests on one instrument rather than relying on separate systems. This can help simplify setup, reduce bench space requirements, and improve consistency in production environments.
The 3153 is also built with automation in mind. Hioki says users can program up to 32 files of test conditions, with as many as 50 steps per file, making it easier to standardize repetitive inspection processes across product types or test stations. For multi-point testing, an optional High Voltage Scanner 3930 is available, helping extend the platform for automatic testing applications.
Another notable feature is voltage generation and test control. Hioki notes that the 3153 uses a PWM method to generate accurate test voltages that do not depend on supply voltage, and it includes a ramp timer function that allows voltage to increase or decrease during dielectric strength testing at user-specified times. These functions can help users apply test profiles more precisely for different products and standards.
From a measurement standpoint, the 3153 covers a wide range of applications. In insulation mode, it measures from 0.10 MΩ to 9999 MΩ with rated test voltage selectable in 1 V steps from 50 V to 1200 V DC. In withstand mode, it supports current measurement from 0.01 mA to 100.0 mA and timer settings from 0.3 to 999 seconds, helping users adapt the test sequence to the device under inspection.
For manufacturers seeking a practical solution for automated hipot and insulation testing, the Hioki 3153 offers a strong balance of flexibility, programmability, and production-readiness. Its integrated design makes it a useful tool for improving electrical safety verification while supporting efficient and repeatable testing in manufacturing environments.
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