Hach BioTector B7000i - Page 140

Page 140
05_PRESSURE TEST FAIL
MFC flow did not drop below the
“PRESSURE TEST FAULT” level
during the pressure test cycle. See
Section 8.3.4.6 Pressure/Flow Test
Program for details.
Gas/liquid leak in the BioTector.
Valve leaking or not sealing.
Open Sample Out Valve, inspect
for dirt/damage.
Check Sample ARS Valve and
system fittings.
Check Mixer Reactor.
Run Pressure Test (see Section
8.1.1.1 Pressure Test for
details).
06_PRESSURE CHCK FAIL
MFC flow did not drop below the
“PRESSURE CHCK FAULT” level
during the pressure check cycle for 3
consecutive reactions. See Section
8.3.4.6 Pressure/Flow Test Program
for details.
Gas/liquid leak in the BioTector.
Valve leaking or not sealing.
Open Sample Out Valve, inspect
for dirt/damage.
Check Sample ARS Valve and
system fittings.
Check Mixer Reactor.
Run Pressure Test (see Section
8.1.1.1 Pressure Test for
details).
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.