Voltage, Frequency, Current And Temperature Measurement; Making A Voltage Measurement - Megger MFT1700 series User Manual

3.3.3 Earth loop impedance
Touch voltage exceeds 50 V (or 25 V depending on instrument configuration)
Supply voltage over range or under range
Supply frequency out of specification
3.3.4 RCD testing
Touch voltage detected or predicted to exceed 50 V (or 25 V depending on instrument configuration)
Supply voltage over range or under range
Supply Frequency out of specification
3.3.5 Earth testing
External voltage greater than 25 V present
Leads not corrected connected as per the test requirements
Potential stake not within range (Rp)
Current stake not within range (Rc)
Other conditions that will inhibit testing include:
3.3.6 Battery exhausted
All testing will be inhibited in the event of a flat battery, refer to section 2.3.
4.

Voltage, frequency, current and temperature measurement

4.1

Making a voltage measurement

.1 Set the Main rotary range knob to volts
(The position of the right hand rotary range knob does not matter)
.2 Using two test leads, connect test leads to the L1 (+ve) and L2 (-ve) terminals
OR if Using the Mains plug Lead SAI10:
a. For Live to Neutral measurements, connect the Red connector to the L1 terminal and the Blue connector to the L2
terminal
b. For Live to Earth measurements connect the Red test to the L1 terminal and the Green connector to the L2
terminal
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