General Monitors 2180A Instruction Manual page 29

Model 2180A
If the Password Disabled is selected, the unit returns to normal operation. If this setting is
changed from Password Disabled to Password Enabled, the user enters a new
password. The unit displays the left digit of the existing password (flashing on the
display). The right digit is blank until the left digit has been selected. Press the Mode
button repeatedly until the desired value displays. Once the left digit is correct, wait for
five seconds and the right digit of the display begins flashing and the left digit is blank.
Press the Mode button repeatedly, until the desired value displays.
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