Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D Table 10-4: Diagnostic Mode - Signal I/O (Continued)
No. Signal Control Description
10. BROWNOUT_RESET 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.
11. ST_LAMP_ALARM YES Status Bit - UV Lamp alarm
Logic High = UV lamp output too low
Logic Low = Lamp output normal
12. LOW_SPAN_VALVE YES Energizes the low span valve. Use this bit to test the
valve function.
13. ST_HIGH_RANGE YES Status Bit - Autorange High Range
Logic High = M100AH in high range of autorange
mode
Logic Low = M100AH in low range of autorange
mode
14. ST_LOW_SPAN_CAL YES Status Bit - Low Span Calibration mode
Logic high = M100AH in Low Span cal mode
Logic low = Not in Low Span cal mode
15. PRMP_RNG_HI YES Switches the preamp (02107) hardware range.
Standard ranges are 500 and 5,000 PPM. Logic
high = 5,000 PPM; logic low = 500 PPM. M100AH
will reset range to correct value based on user set
range value.
16. ST_ZERO_CAL YES Status Bit - Zero Calibration mode
Logic high = M100AH in Zero cal mode
Logic low = Not in Zero cal mode
17. ST_SPAN_CAL YES Status Bit - High Span Calibration mode
Logic high = M100AH in High Span cal mode
Logic low = Not in High Span cal mode
18. ST_FLOW_ALARM YES Status Bit - Flow alarm
Logic High = Sample flow out of spec
Logic Low = Flows within spec
(table continued) 10-14