Teledyne API Model 401 O
3
Photometric Calibrator Instruction Manual, 01124, Rev. J1
Table 2-3: Test Measurements
Test Message
Meaning
TIME=xx:xx:xx
Current time-of-day (HH:MM:SS)
O
3
SET =xxxx PPB
Ozone generator set concentration
O
3
MEAS=xxxx MV
Current measure channel in mV
O
3
REF =xxxx MV
Current reference channel in mV
O
3
GEN =xxxx MV
O
3
GEN ref channel feedback voltage
PRES=xxx IN-HG-A
Absolute pressure : inches Hg
SMP FLW=xxx CC/M
Sample flow through Photometer (cc/min)
SAMPLE TEMP=xxx C
Temperature in the absorption tube
ANA LAMP TMP=xxx C
Analytical Lamp Housing Temperature
O
3
FLOW=x.x L/M
Gas flow through O
3
generator
O
3
LAMP TMP=xx C
O
3
GEN Lamp Housing temp. (deg. C)
REG = xx.x IN-HG-A
Regulator pressure - Inches Hg.
BOX TEMP=xxx C
Internal box temperature (deg. C)
DCPS=xxxxxx MV
DC power supply (mV)
2-6
