Hach BioTector B3500e, User Manual

Page: 134 / 163

Page 134
04_REACTION ERROR
(can also be programmed as a
warning condition)
No TOC (or TC) CO
2
peak detected or
the CO
2
peak is below the “CO2
LEVEL” for 3 consecutive reactions.
See Section 8.3.6 Reaction
Check for details.
Acid/Base containers are empty.
Acid/Base tube ferrule and fitting
installed incorrectly.
Delivery problem with pumps or
air bubbles in Acid/Base lines.
Acid/Base Pumps are faulty.
Mixer Reactor is not mixing.
Acid/Base reagents are at
incorrect strength.
Run pH Test (see Section 8.1.1.5
pH Test for details).
05_PRESSURE TEST FAIL MFC flow did not drop below the
“PRESSURE TEST FAULT” level
during the pressure test cycle. See
Section 8.3.4.5 Pressure/Flow Test
Program for details.
Gas/liquid leak in the BioTector.
Valve leaking or not sealing.
Open Reactor Valve, inspect for
dirt/damage.
Check 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
8.3.4.5 Pressure/Flow Test Program
for details.
Gas/liquid leak in the BioTector.
Valve leaking or not sealing.
Open Reactor Valve, inspect for
dirt/damage.
Check system fittings.
Check Mixer Reactor.
Run Pressure Test (see Section
8.1.1.1 Pressure Test for
details).
11_CO2 ANALYZER FAULT Fault in CO
2
Analyzer.
Very dirty optics in CO
2
Analyzer.
Check CO
2
analyzer’s ppm CO
2
response in Simulate menu (see
Section 8.1.2 Simulate for
details).
Open CO
2
analyzer and clean the
optics.
Power down and power up the
BioTector.
If problem persists, check
outgoing 24V DC power to CO
2
analyzer on Motherboard at wires
N11 and N12.
For further tests, see information
sheet “T019. BioTector CO
2
Analyzer
Troubleshooting”, which is available in
the MMC/SD card shipped with the
BioTector.