infrared industries FGA, Руководство оператора

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Chapter 5 –
Maintenance
The analyzer requires very little maintenance. The following chart itemizes the schedule for those items that do require
periodic maintenance.
Component Interval
Zero Vacuum Probe Each Use
Sample System Hose Check As Required
Filter When a LOW FLOW indication appears*
Calibration Check Every Three Months
Oxygen Sensor Replace Every 1 to 2 Years depending on use
Nitric Oxide Sensor (Opt.) Replace Every 1 to 2 Years depending on use. Requires calibration
when replaced.
*Service filters more frequently if analyzer is operating continuously.
Checking and Cleaning the Probe
Periodically check the holes at the end of the probe for dirt and debris. Disconnect the hose from the analyzer at the
sample inlet. Using a small pointed tool, clean the probe and blow away any debris, using compressed air.
CAUTION : DO NOT APPLY COMPRESSED AIR TO THE PROBE TIP WITHOUT DISCONNECTING THE
SAMPLE HOSE FROM THE FILTER ASSEMBLY. BACK PRESSURE COULD DAMAGE THE SAMPLING
SYSTEM.
R E P L A C I N G T H E P R O B E
1.
Remove the sample probe from the handle.
2.
Install the new probe on the handle and tighten. Use only Teflon tape on fittings.
S A M P L E H O S E
The sample hose must be free of cuts and abrasions that may cause leaks.
F I L T E R A S S E M B L Y
The filter assembly uses a single filter and disposable bowl to keep the pump and internal sample system clean. The
exhaust gas sample enters the filter from the sample hose. The filter element removes all the contaminants from the
exhaust sample. Exhaust gas flows through this filter element from the inside out, so contaminants collect on the
inside of the filter element. Also
, water vapor contained in the sample gas condenses in the filter bowl where it is
evacuated through the elbow fitting at the bottom of the filter bowl by the system pump.