Teledyne 200A Instruction Manual page 156

Teledyne API Model 200A NO
Table 9-4: Diagnostic Mode - Signal I/O (Continued)
No. Signal
10 BROWNOUT_RST
11 CONV_HEATER
12 O3GEN_STATUS
13 AUTO_ZERO_VALVE
14 PREAMP_RANGE_HI
15 ST_RCEL_PRESS
16 ST_ZERO_CAL
17 ST_SPAN_CAL
18 ST_FLOW_ALARM
19 ST_TEMP_ALARM
20 ST_DIAG_MODE
(table continued)
Analyzer Instruction Manual, 02246, Rev. F1
X
Control Description
YES Brownout reset works in conjunction with
DSP_BROWNOUT. When DSP_BROWNOUT is
set, the CPU sends a signal to reset the display and
clear the DSP_BROWNOUT.
YES Shows the status of the Moly heater. This has the
same function as the LED in the Power Supply
Module.
YES Switches ON/OFF power to the ozone generator.
YES Switches the AutoZero valve. Use this bit to test the
valve function.
YES Switches the preamp(01105) hardware range.
Standard ranges are 2000 and 20,000 ppb. Logic high
= 20,000 ppb; logic low = 2000 ppb. M200A will
reset range to correct value based on user set range
value.
YES Status Bit - Reaction Cell Pressure alarm
Logic High = pressure out of acceptable range
Logic Low = pressure inside acceptable range
YES Status Bit - Zero Calibration mode
Logic High = M200A in Zero cal mode
Logic Low = Not in Zero cal mode
YES Status Bit - Span Calibration mode
Logic High = M200A in Span cal mode
Logic Low = Not in Span cal mode
YES Status Bit - Flow alarm
Logic High = Sample/Ozone flow out of spec
Logic Low = Flows within spec
YES Status Bit - Temperature alarm
Logic High = Rxcell, Moly, IZS, Box temps out of
spec
Logic Low = Temps within spec
YES Status Bit - In Diagnostic mode
Logic High = M200A in Diagnostic mode
Logic Low = Not in Diag mode
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