Table of Contents
Advertisement
PSI System Controls and Diagnostics
8 Installation
8.1 Mounting
The D100 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
performance. Four clear holes are provided in the mounting flange on a 140 mm by 62 mm
rectangular pattern (see figure 2) for fixing to surfaces with a corresponding pattern of M3
threaded holes or studs.
We recommend that the signal connection to photomuliplier base should be of minimum possible
length, and not exceeding 2 m to prevent possible pulse shape degradation due to capacitive
load. Good quality 50 ohm coaxial cable should be used.
The mounting position should allow sufficient access to connectors and cable bend radii. 60 mm
minimum clearance is recommended at either end of the device.
Best performance will be achieved if the D100 is in a temperature-controlled environment. No
forced-air cooling is required, but free convection should be allowed around the case.
The D100 must not be mounted in a place with high flux of ionizing radiation, as this could lead
to soft errors and possible incorrect processing of signals. To keep the potential error rate below
one event per day, we recommend a maximum background dose rate of 1 mSv / hr.
8.2 Grounding and power supply
A secure connection should be made using a ring lug, from the M3 ground lug to local chassis
potential.
+24 VDC power should be provided from a suitably-rated power supply with the following
minimum performance:
Output voltage
Output current
Ripple and noise
Line regulation
The D100 includes an internal automatically re-setting PTC fuse rated at 1.1 A. However the
external supply should in no circumstances be rated higher than the D100 connector limit of 5 A,
and a maximum of 1.5 A is recommended.
D100 User Manual
+24 +/- 0.5 VDC
500 mA minimum, 1500 mA maximum
< 100 mV pk-pk, 1 Hz to 1 MHz
< 240 mV
D100_UM_081027
Page 15 of 46
Advertisement
Table of Contents
