Fluke Biomedical 05-450 - Manual (Page 21)

Digital Doorway Monitor
Operator Controls and Setup
13
9-Pin Data Connector
The 9-pin connector provides output signals from the instrument and input
voltage to the instrument. The pin assignments are:
pin1-
+BATTERY
pin2- GND IN
pin3- FAIL_L
pin4- RS232 DUMP
pin5- ANALOG OUT
pin6- NA
pin7- HIGH ALARM_L
pin8- EXT RESET_L
pin9- +5VDC OUT
The FAIL and HIGH ALARM digital signal outputs are open drain 2N7002
outputs, able to sink about 50 mA each.
Detector Setups
Typical response and set points for the Product with NaI(TI) Scintillation
Detectors are as follows:
• Operating Voltage: 600 V dc to 1200 V dc determined by comparing plateaus
• Threshold: 10 mV dc (using a 39-inch cable)
• Calibration Constant: 2400 cpm/μR/hr
• Dead Time Correction: 5 µsec
• Linear Range with DTC: 10 µR/hr to 1500 µR/hr
Typical Checkpoints:
100
µR/hr
150 µR/hr - calibration constant set point
200 µR/hr
500 µR/hr
1000 µR/hr - dead time correction set point
1500 µR/hr