ILLKO ESC 2051 - Leakage Current by Means of Current Clamp; PE Current During Operation and Differential Leakage Current

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User’s Manual ESC 2051

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

DIFF.

key in order to select differential leakage current function.

• 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.