Filter
Top Products
Teledyne API – Model T700 Dynamic Dilution Calibrator Troubleshooting and Service
243
Table 9-1: Warning Messages in Front Panel Display Param Field
WARNING FAULT CONDITION POSSIBLE CAUSES
CONFIG INITIALIZED
Configuration and
Calibration data reset to
original Factory state.
- Failed Disk-on-Module
- User has erased configuration data
DATA INITIALIZED
Data Storage in DAS was
erased.
- Failed Disk-on-Module.
- User cleared data.
LAMP DRIVER WARN
1, 2
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
MFC COMMUNICATION
WARNING
Firmware is unable to
communicate with any
MFC.
- I
2
C has failed
- One of the MFCs has failed
- Cabling loose or broken between MFC and Motherboard
MFC PRESSURE
WARNING
One of the calibrator’s
mass flow controllers
internal gas pressure is
<15 PSIG or > 36 PSIG
- Zero or source air supply is incorrectly set up or
improperly vented.
- Leak or blockage exists in the T700’s internal pneumatics
- Failed CAL GAS or DUILUENT pressure sensor
O3 GEN LAMP TEMP
WARNING
1
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
2
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
measurements 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
2
Occurs when Ref is
<2500 mVDC
or >4950 mVDC.
Possible failure of:
- UV Lamp
- UV Photo-Detector Preamp
06873B DCN6388