Teledyne T100, Instruction Manual, Page: 345 / 404

APPENDIX A - Version Specific Software Documentation
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
A-28 05036 Rev D
SIGNAL NAME BIT OR CHANNEL
NUMBER
DESCRIPTION
Relay board digital output (PCF8575), default I
2
C address 44 hex
RELAY_WATCHDOG 0 Alternate between 0 and 1 at least every 5 seconds to keep
relay board active
RCELL_HEATER 1 0 = reaction cell heater on
1 = off
2–3 Spare
IZS_HEATER 4 0 = IZS heater on
1 = off
O2_CELL_HEATER
10
5 0 = O
2
sensor cell heater on
1 = off
CAL_VALVE 6 0 = let cal. gas in
1 = let sample gas in
SPAN_VALVE 7 0 = let span gas in
1 = let zero gas in
LOW_SPAN_VALVE
2, 6
8 0 = let low span gas in
1 = let sample gas in
CYLINDER_VALVE
7
8 0 = open pressurized inlet valve
1 = close valve
ZERO_VALVE
2
9 0 = let zero gas in
1 = let sample gas in
DARK_SHUTTER 10 0 = close dark shutter
1 = open
11–15 Spare
AUX board analog inputs, default I
2
C address 30 hex
PMT_SIGNAL
3
0 (register number) PMT detector
UVLAMP_SIGNAL
3
1 UV lamp intensity
NORM_PMT_SIGNAL
3
2 Normalized PMT detector
PMT_TEMP
3
3 PMT temperature
HVPS_VOLTAGE
3
4 HV power supply output
PMT_DARK
3
5 PMT reading during dark cycles
LAMP_DARK
3
6 Lamp reading during dark cycles
AGND_DARK
3
7 AGND reading during dark cycles
AGND_LIGHT
3
8 AGND reading during light cycles
VREF_DARK
3
9 VREF4096 reading during dark cycles
VREF_LIGHT
3
10 VREF4096 reading during light cycles