Associated Research 620L User Manual

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Adjust output of the Sine Wave Generator to 19.00VRMS or to maximum that
generator provides. To meet required accuracy the Voltage should be bigger than
5.00VRMS. Control the output voltage with the standard Wideband Voltmeter. Write
down the RMS Leakage current that the 620L meter indicates.
Change the output frequency of the Sine Wave Generator to 100 Hz and adjust the
output voltage to the same value.
Adjust the VR1 on the 620L to have the Leakage current as close as possible to the
value recorded above.
9.2.1. Calibration of Run Test Voltage
Upper Right Screen
Load/Meter
Lower Right Screen
Prompt
Lower Right Screen
Prompt (Cal. Active)
Step 1: Disconnect power
to the DUT I/P input.
With the DUT I/P input
open, press TEST to start
the calibration process.
Automatic Calibration
Processing.
Step 2: Connect 250VAC
and a standard voltmeter
to the DUT I/P input.
Press TEST to start the
calibration process.
Enter Standard Voltage
Reading.
Press the TEST button to activate the calibration. After the calibration is activated, the
lower right screen will change to the text indicated in the table above (Cal. Active).
Read the measurement from your standard and enter it using the numeric keypad.
You may now store the new calibration number by pressing the ENTER key or escape
by pressing the EXIT key or the RESET button.

Associated Research 620L Specifications

General

Brand	Associated Research
Model	620L
Category	Test Equipment
Language	English