To Next PageTo Next PageWhy does Hioki Test Equipment show different measured values for the same target?
The differences are due to the effects of the insulator’s polarity or the effects of the insulator’s temperature characteristics. Allow an adequate amount of time (about 1 hour to 1 day) to pass after the first measurement before repeating measurement. Also, measure the target under the same temperature and humidity conditions.
What to do if the measured value is the maximum on Hioki IR4052 Test Equipment?
If the measured value is shown as the maximum display value when using Hioki Test Equipment, check the continuity of the test lead with a tester. Also, verify that the test leads are securely connected to both the instrument and the measurement points.
How to troubleshoot Hioki Test Equipment when unable to perform measurement?
If you are unable to perform a measurement with your Hioki Test Equipment, try turning off the MEASURE key and then pressing it again. Also, make sure to separate the measurement target from all power sources before taking measurements.
Why do the batteries run out so fast in my Hioki Test Equipment?
If the batteries in your Hioki Test Equipment run out immediately, replace the nickel-metal-hydride or manganese batteries with alkaline batteries.
What causes excessive variation in measured values on Hioki Test Equipment?
If you experience excessive variation in the measured value with your Hioki Test Equipment, it could be due to induced noise from a nearby charging circuit. Try disconnecting the circuit breaker for any nearby charging circuits. If this isn't possible, use the lowest measured value as your result. Another cause could be a large capacitance component in the measurement target. If possible, remove the capacitor; otherwise, use the lowest measured value.
What to do if I can't perform measurements in the 500 V, 1000 V, or PV? range on my Hioki Test Equipment?
The 500 V, 1000 V, and PV? ranges use double-action to prevent the inadvertent application of the measurement signal. Press after setting the rotary selector to the 500 V or 1000 V range. Pressing while holding the RELEASE key will not disable the lock function. In PV? range, select a voltage to be applied with 500 V ?? 1000 V key and then press RELEASE key.
Why does my Hioki Test Equipment show the maximum display value?
This issue can occur if there is a broken connection in a test lead or if the test leads are not securely connected. Check the continuity of the test lead with a tester. Also, check the connection between the test leads and the instrument, and check the connection of the tips of the test leads.
Why is there excessive variation in the measured value on my Hioki IR4052?
The variation may be caused by induced noise from a charging circuit located near the measurement target or the measurement target has a large capacitance component (capacitor). * Disconnect the circuit breaker for any nearby charging circuits. If this is not possible, use the lowest measured value as the measurement result. * If it is possible to remove the capacitor, do so. If not, use the lowest measured value as the measurement result.
How to fix a broken protective fuse in Hioki Test Equipment?
If there is a broken connection in the protective fuse of your Hioki Test Equipment, replace the indicated fuse.
Why is the insulation resistance accuracy outside specifications on Hioki IR4052?
If, when calibrating your Hioki Test Equipment, the accuracy of the insulation resistance range falls outside the device specifications, use the test leads that came with the instrument or its optional test leads to perform the calibration procedure. The issue might be that the test lead cable insulation resistance is too low.
General| Type | Insulation Tester |
|---|---|
| Category | Test Equipment |
| Test Voltage | 50V, 125V, 250V, 500V, 1000V |
| AC Voltage Measurement | 600V |
| DC Voltage Measurement | 600V |
| Display | Digital LCD |
| Power Supply | LR6 (AA) alkaline batteries ×4 |
| Battery Life | Approx. 20 hours (continuous use) |
| Dimensions | 159 mm × 177 mm × 53 mm |
| Weight | Approx. 600 g (including batteries) |
Introduction to the insulation tester and its intended use.
Detailed identification and explanation of instrument controls, display elements, and terminals.
Steps for preparing the instrument, test leads, and performing pre-measurement checks.
Setting up the PASS/FAIL judgment function with selectable reference values.
Detailed procedure for measuring insulation resistance, including voltage selection and safety.
Procedure for safely discharging the test object after measurement to prevent electric shock.
Instructions for performing AC voltage measurements and checking for live conductors.
Steps for measuring low resistance, including essential zero adjustment.
Procedure for measuring insulation performance of solar panels using the IR4053.
Details on functions, live circuit indicator, and automatic electric discharge.
Covers accuracy, warranty, operating/storage conditions, IP code, and voltage ratings.
Specific technical data for Insulation Resistance Measurement, including ranges and accuracy.
Guidance on diagnosing and resolving common instrument issues and error messages.
Step-by-step instructions for replacing batteries and fuses with safety notes.
Procedure to replace the tip pin on the optional L9788-10 test lead.
Explanation of the underlying principles for different measurement types.
Methods and characteristics for performing insulation resistance tests on solar cell arrays.
