2101510 Rev. AG
Page 6–9
8)
Perform the Column Vent Pressure Test procedure, found in this chapter, for
both column vent 1 and column vent 2. If either test failed, proceed to the next
step.
9)
Perform the
Feed-through Assembly Blockage Test
chapter, on column vent 1 (CV1) and column vent 2 (CV2). If the test fails,
replace the feed-through assembly with a new or refurbished assembly.
Otherwise, continue to the next step.
Totalflow recommends that a replacement analytical module
be installed at this point and additional steps be performed in
a clean, lint free atmosphere.
Because the customer does not have the required equipment
to determine which specific module needs replaced, the final
instructions are by process of elimination, beginning with the
most likely module.
The Totalflow repair department offers a range of services for
troubleshooting and repairing/replacing the non-functioning
parts. For more information regarding the repair service,
contact customer service:
USA: (800) 442-3097 or International: 1-918-338-4880
10)
Using the
instructions in Maintenance, replace the
analytical module assembly.
11)
Using the
instructions in Maintenance, replace the GC
module.
6.3.4
Sample Pressure Alarm
If the sample pressure alarm is in fault status, the following procedure will step the
user through the troubleshooting process. On occasion, these instructions may
detour to other procedures, and, when complete, should return the user to these
procedures to continue.
6.3.4.1
Description
These alarms are indicative of low sample or calibration gas pressure. The causes
range from an empty or low calibration gas bottle to a blockage inside the GC
module.
6.3.4.2
Instructions
1)
If the calibration gas bottle regulator includes an installed low pressure
switch, investigate if the lo bottle calibration gas warning is also present;
otherwise, continue to next step.
If the lo bottle calibration gas warning is present, replace the calibration
gas bottle; otherwise, continue to the next step.
2)
Verify the calibration gas bottle pressure is above 15 PSIG. If the pressure is
below 15 PSIG, replace the calibration gas bottle. Otherwise, continue to next
step.
3)
Verify the calibration gas bottle pressure regulator set point is 15 PSIG. If not,
correct the set point to 15 PSIG. Otherwise, continue to next step.
4)
Verify the sample vent is open and unobstructed.
5)
Perform the
found in this chapter. If the test failed,
continue to the next step; otherwise, skip to step 7.
