Installation; Mounting - Pyramid CR10 User Manual

PSI System Controls and Diagnostics

9 Installation

9.1 Mounting

The CR10 must be located close to the radiation detector to minimize the effect of cable
capacitance on noise levels. This is most important for detectors that create very small charge
pulses (a 20,000 electrons or less), where the -G0 conversion gain configuration is used. If the
charge pulse is larger, and/or where pulses are being simply counted rather than pulse height
analysed, then around three feet (one meter) of coaxial cable can be used to connect the detector.
This can be done to remove the CR10 from an area of high radiation for example, or to simplify
mounting and cable connections.
The CR10 may be mounted in any orientation, or may be simply placed on a level surface. A
fixed mounting to a secure frame is recommended in a permanent installation for best low
current performance, as this can be degraded by movement and vibration. Four M3 clear holes
are provided in the base flange on a 62 mm by 114 mm rectangular pattern. An adaptor for 35
mm EN 50022 DIN rail is available.
Figure 4. DIN rail mounting.
The mounting position should allow sufficient access to connectors and cable bend radii. Leave
60mm clearance at either end for mating connectors and cable radii.
CR10 User Manual CR10_UM_180115 Page 17 of 40