Table 5-2: I/O Signals - Teledyne 300M Instruction Manual

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Table 5-2: I/O Signals (Continued)
# Signal
8 WHEEL_HTR
9 DARK_CAL
10 ELEC_TEST
11 BROWNOUT_RESET
12 ST_CONC_ALARM_1
13 ST_CONC_ALARM_2
14 ST_FLOW_ALARM
15 ST_TEMP_ALARM
16 ST_DIAG_MODE
17 ST_POWER_OK
18 ST_PRESS_ALARM
(table continued)
Control Description
YES Shows the status of the filter wheel heater. This has
the same function as the LED in the power supply
module.
YES Turns off the detector input to the Sync/Demod board
for electronics calibration.
YES Activates the Electric Test diagnostic circuitry
YES Resets the DISP_BROWNOUT circuitry described
above
YES Status Bit - gas alarm 1
Logic high = M300M in alarm 1 mode
Logic low = Not in alarm 1 mode
YES Status Bit - gas alarm 2
Logic high = M300M in gas alarm 2
Logic low = Not in alarm 2 mode
YES Status Bit - Flow alarm
Logic High = Sample flow out of spec
Logic Low = Flows within spec
YES Status Bit - Temperature alarm
Logic High = One or more temps out of spec
Logic Low = Temps within spec
YES Status Bit - In Diagnostic mode
Logic High = M300M in Diagnostic mode
Logic Low = Not in Diag mode
YES Status Bit - Power OK
Logic High = Instrument power is on
Logic Low = Instrument power is off
YES Status Bit - Flow alarm
Logic High = Sample pressure out of spec
Logic Low = pressure within spec
5-4