TELEDYNE API T703U - Page 229

Teledyne API - Models T703, T703U, 703E MENU TREES (05745F DCN7107) APPENDIX A-4: Signal I/O Definitions
A-15
MODELS T703, T703U, 703E I/O Signal List for Latest Revision
Signal Name
Bit or
Channel
Number
Description
ZERO_AIR_PUMP
1
0 = pump on for zero air
1 = off
2–5
Spare
PHOTO_REF_VALVE
6
0 = photometer valve in reference position
1 = measure position
ZA_SHUTOFF_VALVE
7
0 = open zero air shutoff valve
1 = close
O3_PUMP_ON
8
0 = pump on for photometer to measure O
3
1 = off
9–13
Spare
PHOTO_LAMP_HEATER
14
0 = O
3
photometer lamp heater on
1 = off
O3_GEN_HEATER
15
0 = O
3
generator lamp heater on
1 = off
Front panel I
2
C keyboard, default I
2
C address 4E hex
MAINT_MODE
5 (input)
0 = maintenance mode
1 = normal mode
LANG2_SELECT
6 (input)
0 = select second language
1 = select first language (English)
SEQUENCE_LED
8 (output)
0 = sequence LED on (executing sequence)
1 = off
AUTO_TIMER_LED
9 (output)
0 = automatic timer LED on (automatic sequence timer enabled)
1 = off
FAULT_LED
10 (output)
0 = fault LED on
1 = off
AUDIBLE_BEEPER
14 (output)
0 = beeper on (for diagnostic testing only)
1 = off
Rear board primary MUX analog inputs
PHOTO_DET
0
Photometer detector reading
N/A
1
N/A
2
Spare
PHOTO_SAMP_PRES
3
Photometer sample pressure
4
Temperature MUX
REGULATOR_PRESS
5
Regulator pressure
PHOTO_FLOW
6
Photometer flow
7–8
Spare
REF_4096_MV
9
4.096V reference from MAX6241
10-11
Spare
OUTPUT_FLOW
12
Output flow
13
Spare
14
DAC loopback MUX
REF_GND
15
Ground reference
07223D DCN7107