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Teledyne API Model 401 O
3
Photometric Calibrator Instruction Manual, 01124, Rev. J2
Table 9-1: Warning Messages
Warning Message Meaning Corrective Action
ANA LAMP
WARNING
The O
3
REF value is greater than 5000 mV
or less than 2500 mV.
Check and adjust Source Lamp
and UV detector as described in
Section 9.6.6.
ANA LAMP
SHUTDOWN
Temperature control of the Source Lamp
cannot be maintained at its 52
o
C set point.
Check source lamp heater and
thermistor as described in
Section 8.10.
O3 GEN LAMP
WARNING
The Ozone Generator is unable to produce
at least 1000 ppb at its maximum output or
the O
3
GEN feedback control is adjusting
the Ozone generator drive signal by more
than a factor of two.
Check and adjust the O
3
GEN
lamp and reference det as
described in Section 9.6.8.
O3 GEN LAMP
SHUTDOWN
Temperature control of the O
3
GEN Lamp
cannot be maintained at its 48
o
C
set point.
Check O
3
GEN lamp heater and
thermistor as described in
Section 8.10.
SAMPLE
PRESSURE
The Sample Pressure is less than 15"Hg or
is greater than 35"Hg.
Check for pressure transducer
problems as described in
Sections 9.6.1 and 9.6.5.
SAMPLE FLOW
WARNING
The sample flow is less than 500 cc/min or
greater than 1000 cc/min. Check for
pneumatic system problems as described
in Section 9.6.1.
Check for flow transducer
problems as described in
Section 9.6.5.
BOX TEMP
WARNING
The inside chassis temp is less than 5
o
C or
is greater than 50
o
C.
See Section 9.6.2.
SAMPLE TEMP
WARNING
The Sample Temperature is less than 10
o
C
or is greater than 50
o
C.
See Section 9.6.2.
V/F NOT
INSTALLED
The CPU is unable to communicate with
the V/F Board.
Check and re-seat CPU and V/F
board. See Section 9.6.3.
SYSTEM RESET A power Off-On cycle has occurred. None required.
RAM
INITIALIZED
Dynamic memory has been re-initialized
in response to the installation of a new
PROM or memory chip.
None required.
O3 FLOW
WARNING
IZS flow rate is less than 1.8 L/M or >5.5
L/M.
Adjust pressure regulator to set
proper flow rate.
9-4