PPCH-G™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 6
2.2
SITE REQUIREMENTS
PPCH-G weighs more than 50 kg (110 lb). Be sure that the location in which its installed is adequate to
support the load.
The PPCH-G can be installed on any
flat, stable surface
at a convenient height. The PPCH-G can also
be mounted in a standard 19 in. rack (see Section 2.2.1).
Minimizing the distance between the PPCH-G and the device or system under test will enhance control
performance and reduce pressure setting times.
Ready access to the PPCH-G rear panel
should be considered to facilitate making and breaking
pressure connections.
Also consider:
•
High pressure gas source and connection of high pressure gas supply (see Section 2.3.6).
•
Pressure and RS-232 connections to an external RPM4 should be considered if RPM4 is to be
used as an external reference pressure measurement device (see Section 2.3.7.1).
•
Location and connections to the device or system into which pressure is to be controlled (see
Section 2.3.7.3).
Support facilities required include:
•
An electrical power source
of 85 to 264 VAC, 50/60 Hz.
•
A pneumatic power supply,
of “drive air” to be connected to the PPCH-G
DRIVE
port (see Section 2.3.5).
ALWAYS use external tubing and fittings rated for pressures equal to or greater than the maximum
pressure PPCH-G will set and control.
2.2.1
INSTALLATION IN A 19 IN. RACK MOUNT
PPCH-G is dimensioned to be ready for direct mounting in a standard 19 in. rack mount system.
If PPCH-G was delivered in the optional enclosure, it must be removed from the enclosure
prior to rack mounting.
The front panel is 6U (10.5 in.) high.
Install PPCH-G into the rack mount system using heavy duty front panel screws provided by the
rack vendor. Due to PPCH-G’s weight, it is imperative that a rail system also be used to support
it along the sides and/or rear. These are also supplied by the rack mount system vendor.
PPCH-G weighs more than 50 kg (110 lb). Take appropriate precautions to lift and place it
safely. It is the user’s responsibility to support PPCH-G adequately on the sides and/or rear when
installing it in a rack mount system.
