MODELMODEL 2500_______________________________________________________2500_______________________________________________________
TEST MALFUNCTIONS
In the case of an internal malfunction detected within the MODEL 2500:
- Alarm contact is actuated and the red LED glows on the front panel.
- Unit automatically ceases operation and no longer accepts data from
the keypad.
- Cause of the failure is displayed in English on the LCD screen.
Malfunctions indicating failure in the self-diagnostic test, or a specific application
are illustrated below:
1. The following illustrated message of the MODEL 2500 LCD screen indicates
that a memory test of the Random Access Memory (RAM) has failed. The
characters XXXX indicate the RAM integrated circuit where the error
occurred.
MEMORY ERROR
BLOCK XXXX
2. The following illustrated message of the MODEL 2500 LCD screen indicates
that a required programmable read-only memory (PROM) is not installed in
the unit, or is improperly installed.
PROM MISSING
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SECTIONSECTION 33
15
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