GASSONIC Observer-i - 6.7.21. Reset Alarm (16 H); 6.7.23. Acoustic Test (18 H)

GASSONIC OBSERVER-i
67
NOTE: The default Data Format is 8-N-1.
6.7.20. Software Rev Minor (15H)
A read-only accessible register contains minor (internal) numeric revision value of the Gassonic
Observer-i embedded software expressed in 2 ASCII characters.
6.7.21. Reset Alarm (16H)
Writing a “1” to this register will reset the alarm relay.
EXCEPTIONS - If an illegal data value is entered (must be between 0-1), then the Exception Code 03
(Illegal Data Value) is returned.
If the Gassonic Observer-i hears a gas leak greater than the trigger when the command is received a
Code 06 (device busy) exception will be returned.
6.7.22. Sub Mode (17H)
This is a read only register. It is used to tell the control system the states of calibrate mode.
Calibrate Sub Mode Number returned
Apply 1701 0x0001
Calibration in progress 0x0002
Calibration adjustment 0x0004
Calibrate OK 0x0008
Calibrate error 0x0010
Table 21: Calibrate Sub Mode
6.7.23. Acoustic Test (18H)
This is a write only register. Writing a “1” to this register will activate an acoustic test. This is a one
cycle test. During the test the display will show “COM”. The current will go to 3.0 mA.
EXCEPTIONS - If an illegal data value is entered (must be between 0-1), then the Exception Code 03
(Illegal Data Value) is returned.
If the Gassonic Observer-i hears a gas leak greater than the trigger when the command is received a
Code 06 (device busy) exception will be returned.
6.7.24. HazardWatch (19H)
HazardWatch indicates when a successful calibration takes place. In HazardWatch mode the current
goes to 3.2 mA for 5 seconds then to 4.0 mA. An aborted calibration would go straight to 4.0 mA.
This is a read/write only register. Reading returns the state of the HazardWatch. (ON/OFF). Writing a
1 will turn on HazardWatch, a “0” will disable.
EXCEPTIONS - If an illegal data value is entered (must be between 0-1), then the Exception Code 03
(Illegal Data Value) is returned.