How to repair the value deviation of the resistance range of the meter
The numerical deviation of the resistance range of the clamp meter may be caused by damage or aging of internal components. To repair the deviation of the resistance range value of the clamp gauge, the following steps can be taken:
Firstly, check if the clamp gauge is in the correct working condition. Ensure that the battery of the clamp meter is fully charged and there are no other malfunctions or damages.
2. Then, using a reference standard with a known and accurate resistance value, place the clamp gauge in the resistance range near that value. Compare the values displayed on the clamp gauge with the reference standard values.
If the numerical deviation of the clamp gauge exceeds the acceptable range, calibration can be attempted. Calibration usually involves adjusting the resistance measurement circuit inside the caliper to match the values of the reference standard.
If the calibration is invalid or cannot be performed, it may be necessary to replace the internal components of the clamp gauge. In this case, it is best to send the caliper gauge back to the manufacturer or authorized repair center for repair or replacement.
Please note that the maintenance of pliers requires professional knowledge and skills, so it is best to have experienced maintenance personnel or authorized repair centers from the manufacturer perform the operation.
How to choose a clamp gauge
Single AC and AC/DC:
According to the measurement requirements, whether AC is the main measurement or both AC and DC need to be measured, if DC measurement is involved, an AC/DC dual-purpose clamp meter should be selected.
Range and Resolution:
The range determines the maximum current value that the clamp meter can measure, and you need to choose a range that covers the maximum current you need to measure. Resolution refers to the minimum current change that a clamp meter can recognize, and choosing a high-resolution clamp meter can provide more precise measurement results.
Jaw opening and shape:
The opening of the clamp determines the size of the wire that can be measured. If the wire diameter is thick, a larger clamp gauge or even a flexible current coil for measuring copper bars should be selected based on the opening size of the clamp. If the wire diameter is thin and dense, a clamp gauge with a smaller clamp arm should be selected.
True effective value and average response:
If the on-site electrical environment is complex and contains frequency converter equipment, it is necessary to choose a clamp meter with true effective value.
