Teledyne 2002 Weather Radio User Manual


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Table of Contents
1.
GENERAL INFORMATION......................................................................................................................................... 4
1.1. FEATURES................................................................................................................................................................. 4
1.2. MODEL 2002 SENSORS.............................................................................................................................................. 4
1.3. MODEL 2002 CONTROL UNIT ................................................................................................................................... 4
1.4. SPECIFICATIONS........................................................................................................................................................ 5
2. INSTALLATION............................................................................................................................................................. 6
2.1. RECEIVING INSPECTION ............................................................................................................................................ 6
2.2. QUICK START............................................................................................................................................................ 6
2.3. TRANSDUCER INSTALLATION.................................................................................................................................... 6
2.4. CONTROL UNIT INSTALLATION................................................................................................................................. 7
2.5. INITIAL OPERATION .................................................................................................................................................. 7
3. FRONT PANEL OPERATION...................................................................................................................................... 8
3.1. OVERALL FUNCTIONAL DESCRIPTION....................................................................................................................... 8
3.2. RUN MODE .............................................................................................................................................................. 9
3.3. HIGH AND LOW SET POINT MODES......................................................................................................................... 10
3.4. CAL MODE............................................................................................................................................................. 10
3.5. GAS MODE............................................................................................................................................................. 12
3.6. UNITS MODE......................................................................................................................................................... 13
4. REAR PANEL DESCRIPTION................................................................................................................................... 14
4.1. REMOTE ZERO INPUT.............................................................................................................................................. 14
4.2. ANALOG OUTPUT.................................................................................................................................................... 14
4.3. TTL OUTPUTS......................................................................................................................................................... 16
4.4. POWER ENTRY MODULE......................................................................................................................................... 16
5. THEORY OF OPERATION ........................................................................................................................................ 17
5.1. PIEZORESISTIVE SENSOR......................................................................................................................................... 17
5.2. PIRANI SENSOR....................................................................................................................................................... 19
5.3. DUAL SENSOR OPERATION ..................................................................................................................................... 21
6. COMMUNICATIONS OPTION BOARD .................................................................................................................. 22
6.1. RS-232-E INTERFACE SPECIFICATIONS................................................................................................................... 22
6.2. INTERFACE CONNECTOR PIN ASSIGNMENTS FOR RS-232 ....................................................................................... 23
6.3. OPERATION OF THE SERIAL INTERFACE .................................................................................................................. 23
7. RELAY INTERFACE OPTION BOARD................................................................................................................... 27
7.1. RELAY BOARD SPECIFICATIONS ............................................................................................................................. 27
7.2. RELAY CONNECTOR PIN ASSIGNMENT ................................................................................................................... 27
8. 4-20 MA INTERFACE OPTION BOARD.................................................................................................................. 28
8.1. 4-20 MA INTERFERENCE CONNECTOR PIN ASSIGNMENTS....................................................................................... 28
8.2. OPERATION............................................................................................................................................................. 29
9. 0-10V INTERFACE OPTION BOARD...................................................................................................................... 30
10. TROUBLESHOOTING GUIDE.................................................................................................................................. 32
11. WARRANTY................................................................................................................................................................. 33
11.1.
WARRANTY REPAIR POLICY ................................................................................................................................... 33
11.2. NON-WARRANTY REPAIR POLICY .......................................................................................................................... 33
12. DIAGRAMS AND DRAWINGS.................................................................................................................................. 34
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