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17
DIAGNOSTICS cont.
To enter the keyboard diagnostic mode:
1. Turn power to the unit OFF.
Durant
®
1
Power
In
2
2. Connect the rear terminal program enable input to ground.
Durant
®
Jumper
Terminals
1 and 2
1
2
3
4
3. While holding both the right arrow key (
) and the up arrow key (
),
turn unit power ON.
Durant
Power
In
The program LED and all display segments will be ON. If present, both relays will be
OFF (coils de-energized) and the analog output will be at minimum value (4 mA and
0V).