Fluke Biomedical 945A - Manual (Page 5)

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Table of Contents
Page
SECTION 1 - INTRODUCTION........................................................................................................................... 1-1
G ENERAL D ESCRIPTION ....................................................................................................................................... 1-1
Ion Chamber Detector/Preamplifier, Model 977-210....................................................................................... 1-1
Specifications, Ion Chamber Detector ............................................................................................................... 1-2
Specifications, Preamplifier, Model 977-210-95 ............................................................................................... 1-2
Universal Digital Ratemeter, Model 946A-200 ................................................................................................. 1-4
Application .......................................................................................................................................................................... 1-5
Specifications ....................................................................................................................................................................... 1-5
Auxiliary Equipment........................................................................................................................................... 1-6
SECTION 2 - RECEIVING INSPECTION AND STORAGE............................................................................ 2-1
R ECEIVING I NSPECTION ....................................................................................................................................... 2-1
S TORAGE ................................................................................................................................................................. 2-1
SECTION 3 - INSTALLATION ............................................................................................................................ 3-1
I NSTALLATION ....................................................................................................................................................... 3-1
Detector Mounting............................................................................................................................................... 3-1
UDR Mounting .................................................................................................................................................... 3-1
E LECTRICAL I NTERFACE ..................................................................................................................................... 3-2
S ET - UP ...................................................................................................................................................................... 3-6
SECTION 4 - OPERATION/FUNCTIONAL DESCRIPTION .......................................................................... 4-1
O PERATION ............................................................................................................................................................. 4-1
D ETECTOR O PERATION ........................................................................................................................................ 4-1
UDR O PERATION / F UNCTIONS ........................................................................................................................... 4-3
Normal Operation ............................................................................................................................................... 4-3
WARN/HIGH Alarms......................................................................................................................................... 4-3
Range Alarm ........................................................................................................................................................ 4-3
Fail Alarm ............................................................................................................................................................ 4-4
Check Source ....................................................................................................................................................... 4-4
F IRMWARE V ERSION ............................................................................................................................................. 4-4
O PERATIONAL M ODES .......................................................................................................................................... 4-5
Rate Mode (Normal Operation) ......................................................................................................................... 4-5
Data Entry Mode ................................................................................................................................................. 4-5
Alarm Inhibit ....................................................................................................................................................... 4-5
Check Source ....................................................................................................................................................... 4-5
Maintenance Mode .............................................................................................................................................. 4-6
Auto Zero Mode................................................................................................................................................... 4-7
Loop Test Mode ................................................................................................................................................... 4-7
A LARMS ................................................................................................................................................................... 4-7
Alarm Logic ......................................................................................................................................................... 4-7
Manual Reset....................................................................................................................................................................... 4-8
Auto Reset............................................................................................................................................................................ 4-8
HIGH Alarm ........................................................................................................................................................ 4-8
WARN Alarm ...................................................................................................................................................... 4-8
RANGE Alarm..................................................................................................................................................... 4-9