Table of Contents
Advertisement
Section 9
Notification Events
9.1
BioTector Fault Event Explanation and Remedial Action
The following fault conditions activate the BioTector stop sequence, set all 4-20mA signals to the FAULT
LEVEL (1mA by default) programmed in the 4-20mA Program menu, and activate the FAULT relay. When the
system fault is rectified, acknowledge the fault by pressing the ENTER key in the Fault Archive menu. Faults
must be acknowledged in the Fault Archive menu to be able to restart the BioTector. If there are multiple
faults in the system, check the fuses on the Relay PCB and the Signal PCB.
Detailed information on system operation, commissioning & startup, service and Process Tests are available
in the MMC/SD card shipped with the BioTector. It is recommended to review these documents for
troubleshooting purposes.
FAULT
01_LOW O2 FLOW - EX
02_LOW O2 FLOW - SO
03_HIGH O2 FLOW
04_NO REACTION
(can also be programmed as a
warning condition)
Troubleshooting of System Fault, Warning and
CONDITION
MFC oxygen flow through the Exhaust
"EX" Valve (MV1) has been below
50% of its setpoint for the time longer
than the "LOW O2 FLOW TIME"
defined in Fault Setup menu.
MFC oxygen flow through the Sample
Out "SO" Valve (MV5) has been below
50% of its setpoint for the time longer
than the "LOW O2 FLOW TIME"
defined in Fault Setup menu.
MFC oxygen flow through the Exhaust
Valve (MV5) has been above 50% of
its setpoint for the time longer than the
"HIGH O2 FLOW TIME" defined in the
Fault Setup menu.
No TOC (or TC) CO
peak is below the "CO2
the CO
2
LEVEL" for 3 consecutive reactions.
See Section
8.3.6
Check
for details.
CAUSE/REMEDY
Various, for example,
oxygen supply problem, oxygen
pressure should be ~400mbar.
See Section
Controller Status
Blocked ozone destructor.
Blocked tube after MFC.
Faulty/blocked Exhaust Valve.
Faulty MFC.
Run Flow Test (see Section
8.1.1.2 Flow Test
Various, for example,
oxygen supply problem, oxygen
pressure should be ~400mbar.
See Section
Controller Status
Faulty/blocked Sample Out
Valve.
Blocked tube after MFC.
Faulty MFC.
Run Flow Test (see Section
8.1.1.2 Flow Test
Faulty MFC.
Check oxygen pressure, it should
be ~400mbar. See Section
for details.
peak detected or
Acid/Base containers are empty.
2
Acid/Base tube rail installed
incorrectly.
Reaction
Acid/Base Pumps are faulty.
Delivery problem or air bubbles in
Acid/Base lines.
Mixer Reactor is not mixing.
Acid/Base reagents are at
incorrect strength.
Run pH Test (see Section
8.1.6
Oxygen
for details.
for details).
8.1.6
Oxygen
for details.
for details).
8.1.6
Oxygen Controller Status
8.1.1.5
pH Test
for details).
Page 139
Advertisement
Table of Contents
