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Earth/Ground Tester
Advanced Operation
35
3. In this mode, all settings and LIMIT values available can be called with "DISPLAY
MENU" and the measuring frequency can be set.
4. Press "START TEST" button.
5. Read out measured value.
Resistance Measurement (R)
In this measuring mode all resistances from 0.02 Ω to 3 kΩ can be measured with dc
voltage and automatic polarity reversal as per EN61557-5.
To achieve highest accuracy 4-pole measurements are possible. To balance the
extension lead, a compensation has to be done.
edw024.eps
Figure 13. Resistance Measurement (R)
1. Connect instrument as shown in Figure 13.
2. Turn central rotary switch to position "R".
3. In this mode, all settings and LIMIT values available can be called with "DISPLAY
MENU".
Warning
Before starting a measurement, bring plant or test object to off or de-
energized circuit condition. With an external voltage >3 V, the
measurement will not start.
Warning
Due to the high measuring current, inductive loads can cause lethal
induced voltages during disconnection from the measuring circuit.
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