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Metra Electronics Combo - Maintenance; Device Replacement Procedure; Technical Data

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Page 6
Display Combo/RFID/Keypad Technical Manual
Maintenance
No special maintenance is needed. Regular cleaning is recommended. The unit should be cleaned
using soft cloth and dedicated cleaners for plastic surfaces e.g. car dashboard cleaning agents. Do not
use any aggressive or abrasive agents or solvents as they might cause permanent damage to the
device surface.
Device replacement
This action is generally performed if mechanical parts of the Display’s front mask are damaged or if
some electronic parts (display, signal lights, reader, keypad, etc.) fail.
STEP 1: Disconnect the power supply from the Locker Controller.
NOTE
Disconnect the adapter not the wires fixed on the Locker Controller board to avoid short circuit.
STEP 2: Open the Locker Controller Box/Locker (see Locker manufacturer's documentation).
STEP 3: Inspect and disconnect Display’s connection cable. Replace if needed.
STEP 4: Replace the Display with a new one.
STEP 5: Reconnect connection cable exactly the same as it was connected before.
STEP 6: Connect the power supply.
STEP 7: Close the Locker Controller Box/Locker (see Locker manufacturer's documentation).
Technical data
Operating temperature range
-10 to +50 °C
Audio signal
integrated piezoelectric beeper
Visual signalization
4 digit LED display with decimal points.
User interaction
Display Combo: 12 key keypad
Display RFID: 4 key system keypad (Master and Setup mode only)
Display Keypad: 12 key keypad
Connectors
Communication
Dimensions in mm (w/h/l)
214/79/51