Fluke Biomedical 942A-200L-M4 - Manual (Page 42)

942A-200L-M4 & 942A-200L-M5 UDR
Operator Manual
3-2
4. The fourth mounting utilizes the Victoreen Model 948-1 0 Rack Chassis Adapter to mount a 94XA-
200 UDR into an existing Victoreen analog ratemeter rack chassis. Refer to drawing GEL-948-10
for mounting dimensions.
The UDR is simply inserted into the selected mounting enclosure and secured using the front panel pawl
fastener.
Electrical Interface
WARNING
Ensure all power is off prior to connecting the field wiring
Electrical interconnections are made using the mating connector kit, VICTOREEN part number 942A-
100-4, the connector input/output assignments provided in Appendix B, and the loop drawings
S174014D-102, 174014E1003, S27860A-102 and S321299A-104 are provided in Appendix B.
Termination instructions for coaxial connections can be found in Appendix D.
Connector pins should be soldered to customer furnished cable, using 60/40 tin/lead resin core solder, or
equivalent.
3.2 Set-up
To place the system in operation, the following steps should be performed:
NOTE
Ensure you have read and fully understand Section 3
prior to continuing.
1. Verify that jumpers and DIP switches on the UDR, are set for the operational features desired.
Refer to Section 3, Table 3-1.
2. Apply power to the unit. The bargraph will illuminate in amber, followed with a display of 0.- -0.-.
The unit will then begin to display the ambient radiation at the detector location.
NOTE
Calibration constant and detector deadtime value are
obtained from the factory calibration data sheet for each
particular detector.
3. Detector dependent set points such as analog outputs, Range, Overrange limit, calibration
constant, detector deadtime value, and channel dependent setpoints such as alarm limits may now
be verified and if required, modified using the procedures outlined in Section 3.11.
4. Electronic adjustments affecting calibration are factory set and should not be readjusted for initial
operation unless the UDR has been in storage for more than one year. If the Unit has been in
storage for more than one year, the electronic calibration described in Section 4 should be
performed.