Amprobe AMB-110 Insulation-Resistance-Tester - Manual (Page 19)

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Example:
• A noise current of 1 mA / 50 Hz adds approximately 15 % distribution to the measured result
when measuring 1 GOhm
• By selecting FIL1 option the distribution will reduce to less than 2 %.
• In general using FIL2 and FIL3 will further improve the noise reduction.
Voltage measurement
Selecting this function displays the following states (initial state and state with results after
completion of the measurement, see the Fig. 8).
Fig. 8 Voltage function display states
Measurement procedure:
• Connect the test leads to the instrument and to the measured source.
• Press the START key to start the measurement, continuous measurement starts to run.
• Press the START key again to stop the measurement.
• The result (see the right figure in the Fig. 8) can optionally be saved by pressing the MEM key
twice, see chapter the description of Store, Recall and Clear Operation.
� Warning!
• Refer to Warnings chapter for safety precautions!
Insulation Resistance measurement
Selecting this function displays the following states (initial state and state with results after the
completion of the measurement). The Fig. 9 shows states when Graph R(t) is disabled.
Initial display Display with results
Fig. 9 Insulation Resistance function display states - Graph R(t) disabled