PPCH™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company
Page 6
2.2
SITE REQUIREMENTS
PPCH weighs more than 50 kg (110 lb). Be sure that the location in which it’s installed is adequate to
support the load.
The PPCH can be installed on any
flat, stable surface
at a convenient height. The PPCH can also be
mounted in a standard 19 in. rack (see Section 2.2.1).
Minimizing the distance between the PPCH and the device or system under test will enhance control
performance and reduce pressure setting times.
Ready access to the PPCH rear panel
should be considered to facilitate making and breaking
pressure connections.
Also consider:
•
Access to the internal reservoir
FILL/DRAIN
port if an external reservoir is not being used (see
Section 2.3.6).
•
Location and connections to an external reservoir, if used (see Section 2.3.6.2).
•
Hydraulic 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 2.3.9.1).
•
Location and connections to the device or system into which pressure is to be controlled (see
Section 2.3.9.4).
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
DRIVE
port. Required
pressure varies with PPCH model (see Section 2.4.2).
ALWAYS use external tubing and fittings rated for pressures equal to or greater than the maximum
pressure PPCH will generate.
2.2.1
INSTALLATION IN A 19 IN. RACK MOUNT
PPCH is dimensioned to be ready for direct mounting in a standard 19 in. rack mount system.
If PPCH 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 into the rack mount system using heavy duty front panel bolts provided by the rack
vendor. Due to PPCH’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 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 adequately on the sides and/or rear when installing it in
a rack mount system.
