2.1.2.2 Piston-Cylinder Assembly; Initial Setup; Ccp Pressure Connection; Installing And Removing The Piston-Cylinder Assembly - Fluke PG7607 Operation And Maintenance Manual

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Table Of Contents

Table of Contents

2.2

Initial Setup

2.2.1

CCP Pressure Connection

The pressure connection labeled CCP is for the application of a controlled clearance pressure

to the inside of the piston (see Section 3.1). In normal operation, the measured pressure is

applied to the CCP pressure connection. Use a tee to connect the TEST port and the CCP

port together.

2.2.2

Installing and Removing the Piston-Cylinder

Assembly

Unlike other PG7000 models, the PG7607 piston-cylinder and mounting

elements are not an integrated module.

delivered and installed as separate parts.

Given the large diameter and small annular gap of the PG7607 piston-

cylinders, it is very difficult to insert the piston into the cylinder without the

aid of the alignment mechanism provided by the PG7607 platform

mounting post and piston retaining assembly. There is a risk of cocking

the piston in the cylinder. It is not recommended that the piston ever be put

into the cylinder when the piston is not installed on the PG7607 mounting

post.

To operate the PG7607 platform, a piston-cylinder must be installed on its mounting post. To install

a piston-cylinder assembly on the PG7607 platform, follow the sequential procedure below. This

procedure may be used on the first and subsequent piston-cylinder installations; it may also be

used in reverse order to remove a piston-cylinder. Numerical references in the procedure refer to

Figure 1.