Hach BioTector B7000 User Manual page 144

WARNING
62_SMPL PUMP STOP ON
63_SMPL PUMP STOP OFF
64_ACID PUMP STOP ON
65_ACID PUMP STOP OFF
66_BASE PUMP STOP ON
67_BASE PUMP STOP OFF
68_N PUMP STOP ON
69_N PUMP STOP OFF
CONDITION
Sample Pump stopped with its rotation
sensor ON or the sensor is faulty and it
is always showing ON.
ON state = LED 15 on (Signal PCB).
Sample Pump stopped with its rotation
sensor OFF or the sensor is faulty and
it is not sensing the rotation of the
pump. OFF state = LED 15 off (Signal
PCB).
Acid Pump stopped with its rotation
sensor ON or the sensor is faulty and it
is always showing ON.
ON state = LED 16 on (Signal PCB).
Acid Pump stopped with its rotation
sensor OFF or the sensor is faulty and
it is not sensing the rotation of the
pump. OFF state = LED 16 off (Signal
PCB).
Base Pump stopped with its rotation
sensor ON or the sensor is faulty and it
is always showing ON.
ON state = LED 17 on (Signal PCB).
Base Pump stopped with its rotation
sensor OFF or the sensor is faulty and
it is not sensing the rotation of the
pump. OFF state = LED 17 off (Signal
PCB).
Nitrogen Pump stopped with its rotation
sensor ON or the sensor is faulty and it
is always showing ON.
ON state = LED 8 on (NP I/O PCB).
Nitrogen Pump stopped with its rotation
sensor OFF or the sensor is faulty and
it is not sensing the rotation of the
pump. OFF state = LED 8 off (NP I/O
PCB).
CAUSE/REMEDY
Run the Sample Pump and check
the rotation. Change Relay 2 on
Relay PCB. Check pump sensor
signal looking at LED 15 on Signal
PCB and DI04 in Digital Input
menu. Replace the pump.
Run the Sample Pump and check
the rotation. Change Relay 2 on
Relay PCB. Check pump sensor
signal looking at LED 15 on Signal
PCB and DI04 in Digital Input
menu. Replace the pump.
Run the Acid Pump and check the
rotation. Check pump sensor
signal looking at LED 16 on Signal
PCB and DI05 in Digital Input
menu. Replace the pump.
Run the Acid Pump and check the
rotation. Check pump sensor
signal looking at LED 16 on Signal
PCB and DI05 in Digital Input
menu. Replace the pump.
Run the Base Pump and check
the rotation. Check pump sensor
signal looking at LED 17 on Signal
PCB and DI06 in Digital Input
menu. Replace the pump.
Run the Base Pump and check
the rotation. Check pump sensor
signal looking at LED 17 on Signal
PCB and DI06 in Digital Input
menu. Replace the pump.
Run the N Pump and check the
rotation. Change Relay 1 on NP
I/O PCB. Check pump sensor
signal looking at LED 8 on NP I/O
PCB and DI33 in Digital Input
menu. Replace the pump.
Run the N Pump and check the
rotation. Change Relay 1 on NP
I/O PCB. Check pump sensor
signal looking at LED 8 on NP I/O
PCB and DI33 in Digital Input
menu. Replace the pump.
Page 144