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REMOTE INTELLIGENT SENSOR - AREA MONITOR
Page ii Instruction 2772-0803
2.8 SYSTEM CHECK ....................................................................................................................... 2-4
2.8.1 TAPE CASSETTE LOADING ..................................................................................... 2-4
2.8.2 CHECK AND ADJUST SYSTEM PARAMETERS.................................................... 2-5
2.8.2.1 V, System Voltage................................................................................................. 2-5
2.8.2.2 mA, ‘Charger Current’ ......................................................................................... 2-5
2.8.2.3 Alarm Set Points .................................................................................................. 2-5
2.8.2.4 Alarm Level 1 and 2 ............................................................................................. 2-5
2.8.2.5 Gas Curve .............................................................................................................. 2-6
2.8.2.6 Multi Gas Curve Systems .................................................................................... 2-6
2.8.2.7 Light Levels Track 1 & 2 .................................................................................... 2-6
2.8.2.8 Flow Rate ............................................................................................................... 2-6
2.8.2.9 Date & Time ......................................................................................................... 2-6
2.8.2.10 Interruption of TEST Mode Cycle ...................................................................... 2-7
2.8.2.11 Completion of Checks .......................................................................................... 2-7
2.9 OPTION PCB INSTALLATION .............................................................................................. 2-7
2.9.1 PRINTER (OPTION) INTERFACE INSTALLATION ............................................. 2-7
2.9.2 PORTABLE PRINTER................................................................................................. 2-7
2.9.3 ALARM MODULE CONNECTION............................................................................ 2-7
2.9.4 RELAY ALARM INSTALLATION ............................................................................. 2-7
3 SYSTEM OPERATION AND FEATURES ................................................................................ 3-1
3.1 COMPLETE SAMPLING SEQUENCE ................................................................................... 3-1
3.1.1 AUTOMATIC PURGE CYCLE ................................................................................... 3-1
3.1.2 TWIN TRACK TAPE SAMPLING ............................................................................. 3-1
3.1.3 TAPE REFERENCE MEASUREMENT ..................................................................... 3-1
3.2 DENSITY AND TIME OPERATING MODES ........................................................................ 3-2
3.2.1 DENSITY MODE.......................................................................................................... 3-2
3.2.2 TIME MODE ................................................................................................................. 3-2
3.3 CHANGE-OVER FROM DENSITY TO TIME MODE ........................................................... 3-2
3.4 MIMINUM SAMPLE TIME ..................................................................................................... 3-2
3.5 TAPE CASSETTE LIFE ............................................................................................................ 3-2
3.6 DATA POINT STORAGE .......................................................................................................... 3-2
3.7 SYSTEM DISPLAY .................................................................................................................... 3-2
3.7.1 SYSTEM NORMAL, GAS CONCENTRATION ZERO OR LOW. ........................... 3-2
3.7.2 SYSTEM NORMAL, GAS CONCENTRATION ABOVE THE
ALARM THRESHOLD................................................................................................. 3-3
3.7.3 OVERRANGE ALARM ................................................................................................. 3-3
3.7.4 SYSTEM FAULT.......................................................................................................... 3-3
3.8 SYSTEM ALARMS ..................................................................................................................... 3-3
3.8.1 GAS ALARM ................................................................................................................. 3-3
3.8.2 ADDITIONAL GAS ALARM SET POINT ................................................................. 3-3
3.8.3 FAULT RELAY ............................................................................................................ 3-4
3.9 DIAGNOSTICS .......................................................................................................................... 3-4
3.10 TEST MODE ............................................................................................................................ 3-4
3.11 KEYPAD FUNCTION ............................................................................................................ 3-4
3.11.1 ‘HOLD/RELEASE’ KEY ............................................................................................... 3-4
3.11.2 ‘PRINT’ KEY ................................................................................................................. 3-4
3.11.3 ‘15 MIN TWA (DECADE)’ KEY .................................................................................. 3-4
3.11.4 ‘8 HR TWA (DIGIT SET)’ KEY .................................................................................... 3-4
3.12 USING THE KEYBOARD ....................................................................................................... 3-4
CONTENTS (continued)