7
CHECKBOX OPERATION / RECOMMENDED
VERIFICATION SEQUENCE
Recommended verification sequence and practice
Continuity Resistance verification
Connect instrument under test to the com & resistance range.
(Figure: 1.0 – Section: 3)
Continuity resistance specification
(0.500R +/-5%) +/- Instrument accuracy
(5.000R +/-2%) +/- Instrument accuracy
(10.00R +/-2%) +/- Instrument accuracy
Record Measurements.
Loop Impedance Verification - Local Loop
Connect Instrument under test to the 230V 13A socket (Figure 1.0 –
Section13).
Check polarity of mains input & connect TIS Checkbox to mains outlet.
Select Local Loop range using the RCD/LOOP button (Fig. 1 Section 8).
Perform either Hi Current or NO-TRIP Impedance test.
Record measurement.
Insulation Resistance verification
Connect instrument under test to the com & resistance range(s).
(Figure 1.0 – Section: 2)
Insulation resistance specification:
(1.00MR +/-1%) +/- Instrument accuracy
(50.00MR +/-1%) +/- Instrument accuracy
(200.0MR +/-1%) +/- Instrument accuracy
Record measurements.
