4.2 Checking the Connection
48
Tolerance levels are
wrong
1. When the RMS voltage value is wrong
• Is the voltage clip properly connected to the power line being tested?
• Is the voltage cord inserted correctly in the voltage connector?
2. When the voltage phase angle is wrong
• Is the voltage cord connected properly?
• Are the colors on the voltage input terminal and the voltage cord the
same?
3. When the RMS current value is wrong
• Is the clamp-on sensor properly inserted in the device’s current connec-
tor?
4. When the current phase angle is wrong
• Is the arrow on the clamp sensor pointing towards the load?
• Are the current input terminal and clamp sensor connected properly?
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