Hach BioTector B7000 User Manual

Page 139
FAULT
CONDITION
CAUSE/REMEDY
08_RELAY PCB FAULT
Fuse blown in the 81204001 Relay
PCB. Fuse F3 blown in the 81204010
Signal PCB. 24V PSU faulty.
Check the incoming 24V DC
power. Check the fuses on the
Relay PCB. Check the fuse F3 on
the Signal PCB. LED 6 on the
Signal PCB should be off when
the fault has been corrected.
09_OZONE PCB FAULT
Faulty Ozone PCB.
Inform the distributor or the
manufacturer.
Replace the Ozone PCB.
10_NP PCB FAULT
24V PSU faulty.
Fuse F2, F4 or F6 blown in the
Nitrogen Phosphorus Input/Output PCB
(NP I/O PCB 81204290).
Check the incoming 24V DC
power to the board.
Check the fuses F2, F4 and F6 on
the NP I/O PCB (81204290). LED
L1, L4 and L6 should be off when
the fault is cleared.
11_CO2 ANALYZER FAULT
Fault in CO
2
Analyzer.
Check incoming 24V DC power to
CO
2
analyzer.
Check signal from CO
2
analyzer.
12_HIGH CO2 IN O2
High level of CO
2
has been detected in
the input O
2
gas.
Check the O
2
gas input and
oxygen concentrator if fitted.
Check CO
2
Analyzer zero level
and CO
2
Analyzer filter.
13_SMPL VALVE SEN SEQ
Sample Valve sensors have been
registered in a wrong sequence other
than the Sensor 1, 2 and 3 sequence.
Sample Valve wiring is not
correct. Check valve sensor
wiring.
14_SAMPLE VALVE SEN1
15_SAMPLE VALVE SEN2
16_SAMPLE VALVE SEN3
Sample Valve Sensor 1, 2 or 3 did not
register the position of the valve.
Faulty Sample Valve sensors or
orientation problem. Check the
wiring on the valve PCB and on
the Signal PCB. Check sensor
signals looking at LEDs 12, 13 &
14 on Signal PCB and DI01, DI02
& DI03 in Digital Input menu.
Replace the valve assembly.
17_SMPL VALVE NOT
SYNC
Correct sensor position (Sensor 1) has
not been detected in Sample Valve
when Sample Pump is running.
Change Relay 4 on the Relay
PCB. Check sensor signal looking
at LED 12 on Signal PCB and
DI01 in Digital Input menu.
Replace the valve assembly.

Hach BioTector B7000 Specifications

General

Brand	Hach
Model	BioTector B7000
Category	Measuring Instruments
Language	English