Fluke Biomedical 945A - Manual (Page 19)

Section 3 - Installation
Installation
Installation consists of mounting the equipment, making the required electrical connections, and entering
the desired set points. Installation drawings are provided in Appendix B of this manual.
CAUTION
Remove all power prior to installing the UDR.
Detector Mounting
Refer to Engineering Drawing GEL 977-210, provided in Appendix B, for detector and preamplifier
mounting dimensions, weights and recommended fasteners.
UDR Mounting
The UDR is a self contained unit which can be mounted in four different ways.
CAUTION
When installing the UDR in enclosed panels or cabinets, ensure that the maximum
operating temperature (122° F) is not exceeded. The total heat load should be
calculated to determine whether cooling by natural convection or forced
ventilation (i.e. fans) is required. The heat load for a single UDR is approximately
96 BTU/hr.
When more than four units are to be mounted in a cabinet, it is recommended that
the center position in each chassis be left blank to facilitate the flow of cooling air
through the cabinet.
NOTE
For seismic applications, the rear of the chassis must be supported, or the sides of
the chassis must be fastened together. For further information, contact Fluke
Biomedical RMS.
1. The first mounting utilizes a 19 inch rack chassis adapter, Victoreen Model 948-1. This configuration
requires 3.5 inches of rack height and can be used to mount up to three UDRs side by side. A blank
filler panel, Victoreen Model 948-2, is available to cover unused mounting positions. In multiple UDR
installations, the center mounting bay should be fitted with a Model 948-2 blank panel to facilitate
cooling air flow.
2. The second mounting consists of a single channel table top enclosure, Victoreen Model 948-3.
Dimensions for the enclosure are 4.5 inches high by 6.8 inches wide by 14.9 inches deep. This
enclosure is used primarily in a laboratory environment. Refer to drawing 948-3-5 for mounting
dimensions.
3. The third mounting consists of a panel mount enclosure, Victoreen Model 948-9. Cutout dimensions
for this enclosure are 3.75 inches high by 6.45 inches wide, the outside dimensions for the enclosure
are 4.0 inches high by 6.7 inches wide by 13.7 inches deep. This mounting must also be rear
supported in seismic applications. Refer to drawing 948-9-5 for mounting dimensions.
3-1