STATUS SCIENTIFIC CONTROLS FGD10A-M, Installation, Commissioning & Routine Gas Testing Manual

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STATUS SCIENTIFIC CONTROLS
Installation, Commissioning & Routine Gas Testing
FGD10A-M Gas Detector
TD18/032 Issue: 10 Change Note: 1869 Page 5
9.1.16. Warm-up timer ................................................................................................. 51
9.1.17. Zero Suppression ............................................................................................ 52
9.1.18. Sensor Type .................................................................................................... 53
9.1.19. Sensor Bias (Toxic sensor only) ..................................................................... 56
9.1.20. Gain Setting (Toxic Sensor only) .................................................................... 56
9.1.21. Sensor Units .................................................................................................... 57
9.1.22. Time ................................................................................................................. 58
9.1.23. Screen Saver ................................................................................................... 59
9.1.24. Set Flammable Gas Type ............................................................................... 60
9.1.25. Set Flammable Gas LEL. (Infrared sensor only) ............................................ 61
9.1.26. Set Flammable Gas Correction Factor ........................................................... 62
9.1.27. Set Flammable Gas Default LEL and Correction Factor ................................ 63
10. MODBUS INTERFACE.................................................................................. 64
M
ODBUS
(ISO/IEC 7498-1 P
HYSICAL LAYER
)
DESCRIPTION
. .................................... 64
10.1. M
ODBUS
(ISO/IEC 7498-1 A
PPLICATION LAYER
)
DESCRIPTION
. ................ 64
10.2. M
ODBUS
R
EGISTER LIST
. ....................................................................... 65
10.3. M
ODBUS
P
ROGRAMMING EXAMPLES
: ...................................................... 74
10.3.1. Example 1: Read Gas Level command. ........................................................ 74
10.3.2. Example 2: Method for recalculating CRC checksum: .................................. 76
10.3.3. Example 3: Received Modbus frame from FGD10AM ................................... 77
10.3.4. Example 4: Write Calibration gas level to Modbus register 40126 ................. 77
10.4. B
ROADCAST
M
ESSAGES
. ....................................................................... 78
10.5. W
IRING
: ................................................................................................ 78
10.6. M
ODBUS REFERENCES
: .......................................................................... 78
11. ROUTINE GAS TESTING .............................................................................. 79
12. SENSOR REPLACEMENT ............................................................................ 80
12.1. I
NFRARED SENSOR
................................................................................ 80
12.2. O
XYGEN
/ T
OXIC SENSOR
....................................................................... 86
12.3. F
LAMMABLE
(P
ELLISTOR
)
SENSOR
.......................................................... 94
13. FUSES ........................................................................................................ 103
14. SPECIFICATION ......................................................................................... 104
15. DIMENSIONS .............................................................................................. 105
15.1. O
XYGEN
/ T
OXIC
/ P
ELLISTOR VERSIONS
............................................... 105
15.2. I
NFRARED VERSIONS
............................................................................ 106
16. CERTIFICATION ......................................................................................... 107