Pressure Systems 9022 Uživatelský manuál stáhnout pdf (Strana 149)

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Measurement Specialties, Inc. NetScanner System (9016, 9021, & 9022) User’s Manual

5 - 14

Figure 5.6

DH200 Transducer O-Ring

Replacement

(4) Using tweezers, remove the two (2) O-rings from the DH200. Clean the O-ring cup with a

lint-free applicator moistened with a cleaning fluid such as acetone, alcohol, Freon

, or any

other substance that evaporates quickly and leaves very little residue. Remove any excess

cleaner with the air supply as soon as possible. Do not blow air directly into the holes of

the surface since that can drive the fluid into the transducer and/or rupture the silicon

pressure transducer.

(5) With clean hands, apply a small amount of Krytox

fluorinated grease to the palm of one

hand and rub it out evenly with your index finger. Place one new O-ring onto your

greased palm. Work the O-ring around until it is evenly greased. The O-ring should shine

when properly lubricated. There should be no white area of excess grease on the O-ring.

Make sure there is only a thin film of lubrication on the O-ring. Using your greased

finger, place the greased O-rings in the cups on the DH200. Ensure that no grease enters

the hole that leads into the transducer.

(6) Reinstall the DH200 as described in Section 5.1.4.

(7) Repeat steps 3, 4, 5 and 6 for each set of O-rings in need of replacement.

(8) Replace the PC-206 board as described in Section 5.1.3.1 and reassemble the module.

(9) Test your scanner to ensure proper operation.

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Pressure Systems 9022 Uživatelský manuál Strana 149