1 signal i/o -3, Able, 2: i/o s – Teledyne 300M User Manual
Page 60: Ignals
Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Table 5-2: I/O Signals (Continued)
#
Signal
Control
Description
8
WHEEL_HTR
YES
Shows the status of the filter wheel heater. This has
the same function as the LED in the power supply
module.
9
DARK_CAL
YES
Turns off the detector input to the Sync/Demod board
for electronics calibration.
10
ELEC_TEST
YES
Activates the Electric Test diagnostic circuitry
11
BROWNOUT_RESET
YES
Resets the DISP_BROWNOUT circuitry described
above
12
ST_CONC_ALARM_1
YES
Status Bit - gas alarm 1
Logic high = M300M in alarm 1 mode
Logic low = Not in alarm 1 mode
13
ST_CONC_ALARM_2
YES
Status Bit - gas alarm 2
Logic high = M300M in gas alarm 2
Logic low = Not in alarm 2 mode
14
ST_FLOW_ALARM
YES
Status Bit - Flow alarm
Logic High = Sample flow out of spec
Logic Low = Flows within spec
15
ST_TEMP_ALARM
YES
Status Bit - Temperature alarm
Logic High = One or more temps out of spec
Logic Low = Temps within spec
16
ST_DIAG_MODE
YES
Status Bit - In Diagnostic mode
Logic High = M300M in Diagnostic mode
Logic Low = Not in Diag mode
17
ST_POWER_OK
YES
Status Bit - Power OK
Logic High = Instrument power is on
Logic Low = Instrument power is off
18
ST_PRESS_ALARM
YES
Status Bit - Flow alarm
Logic High = Sample pressure out of spec
Logic Low = pressure within spec
(table continued)
5-4