SMC Networks ISA3 Series Operation Manual page 110

5 Troubleshooting
Forgotten the security code
Use the procedure below when the security code has been forgotten.
<Operation>
Press the SET button for 5 seconds or longer in measurement mode. When [oPE] is displayed on the main
display, release the button.
The current setting [LoC] or [UnLoC] will be displayed on the sub display.
Press the UP and DOWN buttons simultaneously for 5 second or longer.
Press the SET and DOWN buttons simultaneously for 5 second or longer.
: Display is not changed.
(If another operation is performed or no operation is performed for 30 seconds, the display will return to
measurement mode.)
Press the UP and SET buttons simultaneously for 5 second or longer.
Security code is displayed, and the security code change mode is available.
(If an operation is not performed for 30 seconds, the display will return to measurement mode.)
Decide on the security code referring to "How to input and change the security code" on page 90.
When input is completed, the selected security code flashes.
After checking the security code is as required, press the SET button.
Return to measurement mode.
At this time, if the UP or DOWN buttons are pressed, any security code changes are lost, and the change
of security code must be repeated.
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No.PS※※-OMW0009-A