Ransburg GMS Ground Monitoring System A12520-XXXX - Manual (Page 21)

LN-9265-09.2
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Section 4: OPERATION
When the AC power is turned on, the unit will display the set point number on the SEC display and the software revision
level in the STATUS display for 2-3 seconds.
POWERING UP CONTROL UNIT
LOCKOUTS
There are lockouts that may be done at the PC board (see Appendix section). These lockouts may be used individually
or in combination as required. If the jumpers are disconnected, the original functions are re-enabled. After changing any
jumpers, the AC power must be cycled for the new setting to take effect.
Front Panel Lockout
This feature locks out any changes to the timers from the front panel of the control unit. Default from the factory the front
panel lock out is disabled.
1. Set the timers to the desired values using the front panel buttons. This must be set prior to installing the jumper.
2. Turn AC power off and access the interior of the control unit.
3. Place the jumper across the two (2) pins at location 16 on the main PC board (see Appendix section).
4. Close the control unit and turn AC power back on. Pressing the front panel +, -, or setpoint buttons will now
have no effect on the timers.