Teledyne 9110AH Instruction Manual page 128

TELEDYNE Model 9110AH NO
9.1.3.1 Signal I/O Diagnostics
Table 9-4: Diagnostic Mode - Signal I/O
No. Signal
0 DSP_BROWNOUT
1 EXT_ZERO_CAL
2 EXT_SPAN_CAL
3 EXT_LOW_SPAN
4 REMOTE_RANGE_HI
5 SPAN_VALVE
6 CAL_VALVE
7 NOX_VALVE
8 RCELL_HEATER
9 BLOCK_HEATER
10 ELEC_TEST
Analyzer Operator Manual, 01620, Rev. F
X
Control Description
NO Display brownout is used to keep the display from
getting corrupted during low line voltage conditions.
Circuitry on the Status/Temp board senses low line
voltage and sets this bit. The CPU reads this and
generates the BROWNOUT_RST signal described
below.
NO Shows state of status input bit to cause the M9110AH
to enter Zero Calibration mode. Use to check external
contact closure circuitry.
NO Shows state of status input bit to cause the M9110AH
to enter the Span Calibration mode. Use to check
external contact closure circuitry.
NO Shows state of status input bit to switch the low span
concentration valve in the zero/span valve option
NO Shows state of status input bit to switch the remote
range control from low to high range.
YES Switches the Span valve. Use this bit to test the valve
function.
YES Switches the Cal valve. Use this bit to test the valve
function.
YES Switches the NO/NO
valve function.
YES Shows the status of the reaction cell heater. This has
the same function as the LED in the PSM.
YES Shows the status of the sample flow orifice block
heater. This has the same function as the LED in the
PSM.
YES Turns on electric test bit in preamp. Should be used for
troubleshooting Preamp logic lines. We recommend
you use the ET button in the DIAG menu to operate
electric test.
9-12
valve. Use this bit to test the
x