Benning MM 7-2, Руководство по эксплуатации

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Operation
5.8 Voltage indicator
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5.8.2 External conductor or phase testing
Requirements
• Please observe the requirements for measuring [
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page 32].
• Approved black safety measuring line
• Make sure that no voltage is applied to the other jacks of the device. Remove a connected
red safety measuring line.
Figure 15: External conductor or phase testing
Procedure
1. Set the rotary switch of the device to switch position “V‑AC”.
2. Connect the black safety measuring line to the COM jack of the device [
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page 33].
3. Press the “VoltSense” key to enable the “Voltage indicator” function.
“EF‑H” appears on the digital display (electric field with high sensitivity).
If necessary, you can reduce the sensitivity by pressing the “VoltSense” key again. “EF‑L”
appears on the digital display (electric field with low sensitivity).
4. Bring the safety measuring line into contact with the measuring point (system part).
If the device detects the phase of an earthed AC voltage, the symbol “EF‑H” or “EF‑L” will
disappear. A bargraph indication and an acoustic signal indicate the strength of the electric
field.