IM4830B Rev B
23
October 9, 2019
Press the
TOOLS
menu key. Using the down arrow to move to “CONFIGURATION”.Press the
ENTER
key. Using the down arrow step down the menu until “Calibration” is highlighted. Press the
ENTER
key.
The calibration manager screen is displayed.
Figure 25: Calibration manager screen
Using the arrow keys, input the calibration password supplied. Press the
ENTER
key. The message
“ACCEPTED” will be briefly shown if the password input is correct and the “ADJUST LEVEL” screen
is then displayed. If the password is incorrect the message “REJECTED” will be shown.
Figure 26: Adjust level screen
Adjustment 1: Using the up and down arrows, adjust the mV output for a reading on the DMM of
707.0 mV rms, or as close as possible. Press the
ENTER
key .The display will return to the edit
screen.
Measurement 1: Change the g level setting to 10.000. The DMM reading should be within the range
70.00 to 71.41 mV rms.
Measurement 2: Change the g level setting to 1000.0. The DMM reading should be within the range
7.000 to 7.141 V rms.
If the values measured are not within the ranges stated then repeat the “Adjustment 1” step,
setting the output to a level whereby the values measured and recorded in Measurements 1 and 2
come within range. Note: the value set in the “Adjustment 1” step must remain within the range
700.0 to 714.1 mV rms for the calibration to be valid.
When all values noted are within range, the simulator is calibrated and the calibration date will be
stored. To verify, return to the “TOOLS” menu and select “ABOUT”. The “Last Cal” date will now
have been updated. If the simulator cannot be adjusted so that all measurements are within range,
it should be considered faulty and returned for repair.
5.2.
Maintenance
The simulator is designed to provide long service with little in the way of maintenance being required over
the course of its lifetime. Items that may require replacement periodically are:
