Det-Tronics PW9200x Pathwatch IR Gas Detection System - Manual (Page 2)

Section I- General Information
General Description ..........................................1
Features ............................................................1
Specifications ....................................................2
Functional Description ......................................2
Transmitter ...................................................2
Receiver ......................................................2
Section II - Operation
Safety Information .............................................4
Explosion-Proof Integrity .............................4
Personnel Safety .........................................4
Front Panel Controls ..........................................4
Installation .........................................................6
Inspection ....................................................6
Site Requirements .......................................7
Mounting .....................................................7
Initial Setup ........................................................9
Optical Alignment/Signal Strength ..................10
Operation/Performance Check .......................11
Alignment ..................................................12
Signal Strength ..........................................12
Output Zero ...............................................12
Heavy Hydrocarbon Response Confidence
Test ............................................................12
Status Alarm Confidence Test ...................12
Instrument Output ...........................................12
Calibration .......................................................13
Calibration Equipment ...............................13
Procedure ..................................................13
Use of the Calibration Graph ....................14
Hydrocarbon Vapor Alarm Threshold
Adjustment ................................................15
Section III - Maintenance
General Precautions ........................................16
General Information .........................................16
Access to Internal Components ......................16
P.C. Board and Assembly Replacement .........17
Scheduled Maintenance .................................18
Cleaning of Optical Components ..............18
Replacement of Filterwheel Motor .............19
Replacement of Transmitter Lamp ............19
Troubleshooting ...............................................20
Device Repair and Return ...............................22
Ordering Information .......................................22
Recommended Spare Parts ......................22
Appendix
List of Illustrations
Figure 1 - Functional Block Diagram .................3
Figure 2 - Front Panel Controls ..........................5
Figure 3 - Location of Receiver Boards and
Assemblies ....................................7
Figure 4 - Pan-Tilt Mount ...................................8
Figure 5 - Detector Mounting ............................8
Figure 6 - System Interwiring Diagram ..............9
Figure 7 - Calibration Equipment ....................13
Figure 8 - Calibrator Hookup ...........................14
Table of Contents
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