Measurement Specialties 9116 Instrukcja Użytkownika Pobierz pdf (Strona 126)

Measurement Specialties Inc. Model 9116 User’s Manual

Page 114 www.MEAS-SPEC.com

5.1.6.3 Adapter Plate O-Ring Replacement

Following is a step-by-step procedure to replace Adapter plate O-rings in a Model 9116

Intelligent Pressure Scanner. The adapter plate is located opposite of the tubing plate on the

calibration manifold. All DH200 transducers are attached to the adapter plate.

(1) Disassemble the module as described in Section 5.1.2.

(2) Remove the PC-327 Analog board as described in Section 5.1.3.1. Lay the circuit board to

the side on an anti-static surface.

(3) Remove the six (6) 3/32" Allen-head screws that secure the adapter plate to the calibration

valve housing. To remove the two (2) center screws, you must remove the DH200

transducers near the screws. Make sure to note the DH200 serial number and location.

The plate should be gently lifted from the calibration housing.

(4) Carefully rotate or slide the adapter plate back and forth, pivoting on the guiding pin about

1/8" several times. This is done to loosen the O-rings from the calibration manifold. Lift the

adapter plate straight up. Do not touch the calibration manifold.

(5) Remove and replace the O-rings needing maintenance using the procedure described in

Section 5.1.6.1. Note that the O-ring seals use an additional PTFE cup seal placed on top

of the O-ring. These PTFE seals do not require Krytox

grease.

(6) Examine the adapter plate and calibration valve surface to verify that no contaminants are

on either surface. This generally requires microscopic examination. Replace the adapter

plate by slowly placing the plate on the calibration manifold. Make sure that the O-ring is

down towards the pneumatic sliding manifold and the guiding pin on the adapter plate fits

into the mating hole of the calibration valve housing. Fasten the adapter plate evenly on all

sides.

(7) Install the DH200 transducers that were previously removed. It is suggested to install them

back in their original location.

(8) Replace the PC-327 Analog 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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Measurement Specialties 9116 Instrukcja Użytkownika Strona 126