Ametek 931S

Maintenance and Troubleshooting | 6-3
If the analyzer sets alarms that indicate a faulty component requires
replacement (see “Troubleshooting and Diagnostics” in this chapter),
follow the corresponding replacement procedure in this chapter.
For complex maintenance procedures not discussed in this manual, such
as replacing heaters, RTDs, or electronic boards, contact AMETEK.
Or, review Chapter 7 and then contact AMETEK for assistance with
returning the assembly/analyzer to the factory for repair.
Analyzer Preventive Maintenance Schedule
To reduce the occurrence of problems with the analyzer follow this sched-
ule, which lists the frequency of maintenance required when caring for
the analyzer. Since most analyzer problems originate within the sample
system, the primary objective of this schedule is proper care of the sample
system.
Frequency Component/Task
Every 6 Months Zero Gas Cylinder
Check the Zero gas cylinder and replace it if empty/nearly empty.
If the Pressure Compensation and/or Reector Block Purge options
are used, check the Zero gas cylinder more frequently.
Every 6 Months Sheltered Systems
If the analyzer is installed in a custom shelter, check the air lters
for the shelter purge and air conditioning systems, and replace if
necessary.
Depending on the environmental conditions of the site, more
frequent lter replacement may be necessary.
Every 6 Months* Heated Acid Gas Sample Probe
If the optional Heated Acid Gas Sample Probe is used, replace the
o-rings and lters every six months.
(* Depending on sample stream conditions, the suggested
Preventive Maintenance frequency may be shortened or extended.)
For more information, refer to the HAG Sample Probe Installation
and Maintenance Guide (if this option is used).
9–12 Months Source Lamps
Replace the source lamps.
The lamps may require replacement sooner if analyzer alarms
are set (“w: ALC out of range”, “w: PMT signal out of range”,
“w: Excessive zero drift”). See “Source Lamp Replacement” and
“Troubleshooting and Diagnostics” in this chapter.
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WARNING