Leakage Current Measurement On Single Phase System - HT HT78 User Manual

4.3.2. Leakage current measurement on Single phase system

Fig. 4: Taking leakage current measurement on Single phase systems
1. Select the 300mA range on the meter
2. Move the FILTER selector on ON position to activate the "Low-pass 150Hz filter" (see §
4.2.3)
3. Open the clamp and put inside:
The cables L1 and N if use the Differential method as shown in
Fig. 4 obtaining the result as addition of instantaneous values of the currents flowing
in the wires
The PE conductor if use the Direct method
4. The measured result is shown at display
5. For using of Data HOLD and see § 4.2.2. For using of analogical output see § 4.2.6
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Do not perform any AC current measurement on circuit with nominal voltage
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