Measurement Specialties 9116 - Manual (Page 114)

Pressure Systems, Inc. Model 9116 User’s Manual
Page 105 www.PressureSystems.com
In the process of performing general maintenance on a module and in printed-circuit board
replacement, the following tools may be required:
● 3/32" and 5/64" Allen-head screwdrivers,
● a 3/16" hex wrench,
● a needle nose tweezers,
● a Phillips-head screwdriver, and
● a small adjustable wrench.
5.1.2 Module Disassembly
The following procedure should be used to disassemble any model prior to any maintenance.
(1) Place the scanner with its external connectors facing up. With one hand holding the
module housing, remove all screws securing the top plate to the module housing. These are
located around the outer edge of the top panel of the module housing. The Model 9116 uses
twelve (12) Phillips head screws around the top plate outside perimeter.
(2) When all screws have been removed, gently lift the top panel and attached electronics up
and out of the housing. All components of the pressure scanner are attached to the top plate
and will lift out of the module housing when the top plate is removed. See Figure 5.2. Carefully
remove the Viton gasket with the module top plate. In some cases, it may be easier to hold the
top plate and turn the module over, lifting the housing off the top panel.
5.1.3 Electronic Circuit Board Replacement
The Model 9116 contains three (3) printed circuit boards (PCB); the PC-322 main board, the
PC-323 PowerPC Daughter board, and the PC-327 analog board. However, the PC-322 and
PC323 boards are normally left attached to each other and are treated as a single assembly.