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General Troubleshooting & Service Teledyne API T703/T703U Calibrator Operation Manual
164
Table 8-1: Front Panel Warning Messages
WARNING FAULT CONDITION POSSIBLE CAUSES
CONFIG INITIALIZED
Configuration and Calibration
data reset to original Factory
state.
- Failed Disk on Chip
- User has erased configuration data
DATA INITIALIZED
Data Storage in DAS was
erased.
- Failed Disk-on-Module.
- User cleared data.
LAMP DRIVER WARN
The CPU is unable to
communicate with either the
O
3
generator or photometer
lamp I
2
C driver chip.
- I
2
C has failed
O3 GEN LAMP TEMP
WARNING
IZS Ozone Generator Temp is
outside of control range of
48C 3C.
- No IZS option installed, instrument improperly configured
- O
3
generator heater
- O
3
generator temperature sensor
- Relay controlling the O
3
generator heater
- Entire Relay PCA
- I
2
C Bus
O3 GEN REFERENCE
WARNING
1
The O
3
generator’s reference
detector output has dropped
below 50 mV.
1
Possible failure of:
- O
3
generator UV Lamp
- O
3
generator reference detector
- O
3
generator lamp power supply
- I
2
C bus
O3 PUMP WARNING
1
The photometer pump failed to
turn on within the specified
timeout period (default = 30
sec.).
- Failed Pump
- Problem with Relay PCA
- 12 VDC power supply problem
PHOTO LAMP TEMP
WARNING
The photometer lamp temp is
< 51C or >61C.
Possible failure of:
- Bench lamp heater
- Bench lamp temperature sensor
- Relay controlling the bench heater
- Entire Relay PCA
- I
2
C Bus
- Hot Lamp
PHOTO LAMP
STABILITY WARNING
Value output during the
Photometer’s reference cycle
changes from measurement to
measurement more than 25%
of the time.
- Faulty UV source lamp
- Noisy UV detector
- Faulty UV lamp power supply
- Faulty ± 15 VDC power supply
PHOTO REFERENCE
WARNING
Occurs when Ref is
<2500 mVDC
or >4950 mVDC.
Possible failure of:
- UV Lamp
- UV Photo-Detector Preamp
REAR BOARD NOT DET
Motherboard not detected on
power up.
- THIS WARNING only appears on Serial I/O COM Port(s)
Front Panel Display will be frozen, blank or will not
respond.
- Failure of Motherboard
RELAY BOARD WARN
The CPU cannot communicate
with the Relay PCA.
- I
2
C Bus failure
- Failed relay PCA
- Loose connectors/wiring
SYSTEM RESET
The computer has rebooted.
- This message occurs at power on.
- If it is confirmed that power has not been interrupted:
- Failed +5 VDC power
- Fatal error caused software to restart
- Loose connector/wiring
07223C DCN6572