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User's Manual
4.7. Leakage current by means of current clamp
Apply measurement of leakage current and touch leakage current by means of current
clamp to hard-wired and three-phase equipments or in the case you can interchange
L-N on tested equipment in order to accomplish measurement in both L-N polarities.
4.7.1. PE current during operation and differential leakage current
PE current during operation should be measured on protective class I equipments
provided that it can be isolated from ground (from the earth potential).
See chapter 4.5. for details about insulating of tested equipments.
Step 1
Connect optional clamp P 8010 to terminal 9.
•
Step 2
Select the current clamp mode; proceed as follows:
Press the MENU key; the main menu is opened.
•
Use ▲ and ▼ keys to select submenu „Set-up" and press ENTER.
•
Use ▲ and ▼ keys to select item „I external: No". Press the ENTER key and release
•
it in order to select „I external: Yes".
Press the ESC key and release it (repeatedly) until you abandon (sub)menus.
•
Press the I
key in order to select PE current during operation function or press the
•
PE
I
key in order to select differential leakage current function.
DIFF.
Once the current clamp mode is set, it remains set even if the ESC 2051 is
•
disconnected from mains.
As long as the current clamp mode („I external: Yes") is selected, „X" symbol
•
is displayed. There is no voltage present in Test socket 1 during measurement.
Step 3
Enclose either protective conductor (PE current during operation measurement) or L+N
•
conductors (differential leakage current measurement) with current clamp (Fig. 13).
Switch on the main switch of equipment under test; it starts to run.
•
Copyright © 2004 ILLKO, s.r.o.
40
ESC 2051
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