Fluke 1672 - Trip Mode (High Current)

1672/1673 FC/1674 FC
Users Manual
36
Trip Mode (High Current)
If no RCDs are present in the system under test, you can use the high-current Line Earth (L-PE)
loop impedance test.
To measure loop impedance high-current trip mode:
1. Select the Z
I
function for Loop Trip. Loop Trip shows in the header to indicate that high-
current trip mode is selected.
2. Connect the test leads to the terminals of the Tester or use the Mains Test Cord.
Figure 12. Loop Impedance Trip Measurement Screen
3. Select L-PE or L-N.
4. 1674 FC only, select between
 and m resolution for the test results. The m resolution
test takes 30 seconds to 60 seconds to complete.
5. Zero the test leads. For a Loop (Z
I
) test, check that all 3 leads are shorted.
For more information, see How to Zero the Test Leads.
Functions Form
Loop Trip
No Limit
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