SRS Labs QMS 100 Series, Руководство пользователя

Страница: 224 / 280

5-16 Cleaning
SRS QMS Gas Analyzer
•
The exact alignment of the rods in the quadrupole is essential to the optimum
performance of the RGA.
•
Do not scratch the surface of the rods.
•
Do not remove excessive amounts of surface material with the abrasives.
•
Use clean tools and procedures.
•
The fumes from acetone and methanol can be dangerous to health if inhaled and are
highly flammable. Work in well ventilated areas and away from flames.
Equipment
•
Clean, dust-free work area.
•
Latex gloves/powder free.
•
One standard OFHC copper gasket for 2 3/4” CF Flange. New and Clean!
•
Replacement bowed e-clips (SRS Part# 0-00579-000, 12 count)
•
Phillips head screw driver: P1 head (clean.)
•
Precision flat-head screw driver: 2.5mm head (clean.)
•
Needle nose pliers.
•
Micro-Mesh abrasive sheets: 3200 to 12000 grit.
•
Ultrasonic cleaner.
•
“Mr. Clean” detergent.
•
Acetone, Electronic grade or better.
•
Methanol, Electronic grade or better.
•
1000 ml beaker.
•
Oil-free, dry nitrogen.
•
Distilled or de-ionized water.
•
Petri dish.
•
Clean oven ( higher than 100
°
C setting).
Procedure
1. Read all warnings at the beginning of this chapter before attempting to service the probe.
2. Set up in advance a clean dust-free working area where to carry out this procedure.
3. Turn off the RGA and disconnect the ECU from the probe.
4. Wait for the probe to cool down for at least 30 minutes after the emission is turned off. Severe
burns can result if the probe is handled too soon .
5. Without disconnecting the cover nipple from the vacuum port, remove the six bolts from the
feedthru flange at the end of the probe and carefully slide the entire probe assembly out of the
vacuum system. The ionizer, the filter, and the detector are now fully exposed and easily
accessible.