Electrical Installation Tester
Accuracy Tests
25
Table 4. Continuity Accuracy Tests
Display Reading
Step Function Range 5320A Output
Lower Limit Upper Limit
1 20 0 Ω Shorting Bar 0.00 0.03
2 20 2 Ω 1.94 2.06
3 20 18 Ω 17.70 18.30
4 200 22 Ω 21.4 22.6
5 200 180 Ω 177.0 183.0
6 2000 220 Ω 214 226
7
Continuity
2000 1800 Ω 1770 1830
LOOP Z
I
NO TRIP, L-PE
To verify the UUT LOOP Z
I
NO TRIP, L-PE accuracy, complete the following
procedure.
Warning
To prevent possible electrical shock, fire, or personal injury, do
not touch the L or N input jacks while performing the following
tests. These input jacks have line voltage on them during the
test.
Caution
To prevent Decade Resistor Damage, the following tests must
be performed in the LOOP Z
I
NO TRIP function only. Setting the
165XB function switch to LOOP Z HI CURRENT function will
result in damage to the Decade Resistor Box when you
press .
Perform a LOOP Zero as follows:
1. Set the UUT rotary switch to LOOP Z
I
NO TRIP function.
2. Using <, set the UUT for L-PE test.
3. Using a shorting block, short the UUT L-PE-N input jacks together at the UUT.
4. Press and hold .
5. Read the UUT display. The display should read from 0.00 to 0.06 Ω.
6. Disconnect the shorting bar and connect test leads to the UUT L-PE-N input jacks.
7. Short the far end of the test leads together with a Zero Adapter (Fluke P/N 3301338)
See Figure 8.
8. Press and hold for approximately three seconds until the UUT ZERO ∅
annunciator appears.
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