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Teledyne API Model 200AU NO
X
Analyzer Instruction Manual, 02293, Rev. F
9-14
Table 9-4: Diagnostic Mode - Signal I/O (Continued)
No. Signal Control Description
11 CONV_HEATER YES Shows the status of the Moly heater. This has the
same function as the LED in the Power Supply
Module.
12 O3GEN_STATUS YES Switches ON/OFF power to the ozone generator.
13 PREREACT_VALVE YES Switches the Pre-reactor valve. Use this bit to test the
valve function.
14 PREAMP_RANGE_HI YES Switches the preamp hardware range. Only the low
range is active in the M200AU
15 ST_RCEL_PRESS YES Status Bit - Reaction Cell Pressure alarm
Logic High = pressure out of acceptable range
Logic Low = pressure inside acceptable range
16 ST_ZERO_CAL YES Status Bit - Zero Calibration mode
Logic High = M200AU in Zero cal mode
Logic Low = Not in Zero cal mode
17 ST_SPAN_CAL YES Status Bit - Span Calibration mode
Logic High = M200AU in Span cal mode
Logic Low = Not in Span cal mode
18 ST_FLOW_ALARM YES Status Bit - Flow alarm
Logic High = Sample/Ozone flow out of spec
Logic Low = Flows within spec
19 ST_TEMP_ALARM YES Status Bit - Temperature alarm
Logic High = Rxcell, Moly, Box temps out of spec
Logic Low = Temps within spec
20 ST_DIAG_MODE YES Status Bit - In Diagnostic mode
Logic High = M200AU in Diagnostic mode
Logic Low = Not in Diag mode
21 ST_POWER_OK YES Status Bit - Power OK
Logic High = Instrument power is on
Logic Low = Instrument power is off
(table continued)