Installation and Start-Up | 3-21
3. Install the Insulating Jacket on the Sample Probe to allow the Sample
Probe to warm up quickly.
4. Verify the Probe Heater Assembly is working.
Applications where the Probe Heater Assembly is controlled by the
analyzer:
This is part of the overall analyzer verification, as described under the
section “Analyzer Start-Up and Verification” in the analyzer manual.
Upon power-up the “f: Probe temperature too low” alarm error mes-
sage typically will be displayed due to a low Probe Heater Assembly
temperature. For more information about this and other Probe Heater
Assembly-related alarms, refer to “Analyzer Start-Up Diagnostics
Checklist” (in Chapter 3) and “Host Controller Board Error Conditions
and Corrective Action” (in Chapter 6) in the analyzer manual.
If it is suspected there is a shorted RTD, ensure AC power is making it
to the Probe Heater. To do this, check the wiring by measuring across
Terminals 4 and 5 in the Heater Assembly Junction Box.
Retrofit applications where the Probe Heater Assembly is controlled
by a standalone external Temperature Controller:
Check the Temperature Controller display to verify the tempera-
ture is increasing and stabilizes at the required temperature for the
application.
5. Complete all other checks for starting up the analyzer, as described
under the section “Analyzer Start-Up and Verification” in the analyzer
manual.
6. After all temperature zones have reached normal operating tempera-
tures (for Model 931 or Model 932 Analyzers, the normal operating
temperatures are above the Too Cold set point; for retrofits with a
standalone Temperature Controller, the temperature has stabilized
at the required temperature), slowly open the Vent Line valve (Black
handle) and then the Sample Line valve (Red handle) on the HAG
Probe to allow sample gas into the sample system.
Turn on the Aspirator Gas and adjust the sample gas flow rate to
the recommended pressure listed on the system drawings in the
“Supplemental Information” section of the analyzer or HAG Probe
manual.
The analyzer is ready to analyze sample gas.
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