4-9
Operation and Alarm Faults
Description
Key failure
1.Poor contact between the
keypad board and the control
board.
2.The keypad board is faulty.
3.The control board is faulty.
1. Reconnect the keypad board
and the control board.
2. Replace the keypad board.
3. Replace the control board.
Buzzer sound
failure
1.Poor contact between the
keypad board and the control
board.
2.The control board is faulty.
3.The keypad board is faulty.
1.Reconnect the keypad board
and the control board.
2.Replace the control board.
3.Replace the keypad board.
Speaker sound
failure or hoarse
1.Poor contact of speaker
connection line.
2.Speaker assembly failure.
3.Speaker alarm circuit failure.
1.Reconnect the speaker.
2.Replace the speaker assembly.
3.Replace the control board.
Alarm lamp
failure
1. Poor contact between the
keypad board and the control
board.
2. The keypad board is faulty.
3. The control board is faulty.
1.Reconnect the keypad board
and the control board.
2.Replace the keypad board.
3.Replace the control board.
Monitoring Faults
Description
The pressure
value remains
unchanged.
1.
Poor connection or wire
damages exist in the link of
pressure sensor assembly -
pressure detection board - slider
adapter board -
board - control board.
2.The pressure sensor assembly
is faulty.
3.
The pressure detection board
is faulty.
4.The control board is faulty.
1.Reconnect the link or replace the
wires.
2.
Replace the pressure sensor
assembly.
3.
Replace the pressure detection
board.
4.Replace the control board.
The pressure
value exceeds
the scale.
1.Poor connection or wire
damages exist in the link of
pressure sensor assembly -
pressure detection board - slider
adapter board - sensor adapter
board - control board.
2.The pressure sensor assembly
1.Reconnect the link or replace the
wires.
2.Replace the pressure sensor
assembly.
3.Replace the pressure detection
board.
4.Replace the control board.