Extech Instruments 7630 Operation Manual page 65

Enter the new time via the numeric keypad and then press the ENTER key to accept the new
parameter or press the EXIT key to escape from the edit.
If the dwell time is set to "0", the instrument will operate in a continuous mode. It will stop
when the DUT (Device Under Test) goes into failure or the "RESET" button is pressed. The
minimum dwell time setting is 0.5 seconds.
4.3.3.4 Offset setting
Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to
the Offset parameter. The display will appear as follows:
This function allows the instrument to compensate leakage current during a Touch Current test.
Using the up and down arrow keys or the ENTER key, scroll the highlighted area to the Offset
parameter. You may now manually or automatically set an Offset value.
To manually set an Offset value enter a milliohm value via the numeric keypad and then press
the ENTER key to accept the new value or press the EXIT key to escape from the edit.
To automatically set an Offset value, short circuit the ends of the test cables and press the
"TEST" button. The highlighted parameter field will briefly show the word "READING"
and then the display the new value. The new value is automatically updated in the field and
does not allow an escape to the original value or require that the ENTER key be used to accept
the new parameter.
Leakage Current and Offset measuring
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