Teledyne 6200T - Sulfides Analyzer - Manual (Page 240)

Troubleshooting Model 6200T Total Sulfur Analyzer
240 Teledyne Analytical Instruments
To view or clear a warning message press:
SAMPLE RANGE = 500.0 PPB SO2 =XXX.X
TEST
CAL MSG CLR SETUP
If warning messages reappear,
the cause needs to be found. Do
not repeatedly clear warnings
without corrective action.
Press CLR to clear the current
warning message.
If more than one warning is
active, the next message will
take its place.
Once the last warning has been
cleared, the analyzer returns to
SAMPLE Mode.
SAMPLE RANGE = 500.0 PPB SO2 =XXX.X
< TST TST > CAL
MSG CLR SETUP
SAMPLE SYSTEM RESET SO2= X.XXX
< TST TST > CAL
MSG CLR SETUP
In WARNING mode, <TST TST>
buttons replaced with TEST
button. Pressing TEST switches to
SAMPLE mode and hides warning
messages until new warning(s)
are activated.
MSG indicates that one or more
warning message are active but
hidden. Pressing MSG cycles
through warnings
In SAMPLE mode, all warning
messages are hidden, but MSG
button appears
Figure 12-1: Viewing and Clearing Warning Messages
Table 12-1: Warning Messages - Indicated Failures
Warning Message Fault Condition Possible Causes
ANALOG CAL
WARNING
The instruments A/D
circuitry or one of its analog
outputs is not calibrated
A parameter for one of the analog outputs, even one not currently being used,
has been changed and the analog output calibration routine was not re-run
A/D circuitry failure on motherboard
Other motherboard electronic failure
BOX TEMP WARNING
Box Temp is < 5°C or >
48°C.
NOTE: Box temperature typically runs ~7 o c warmer than ambient temperature.
Poor/blocked ventilation to the analyzer.
Stopped exhaust-fan
Ambient temperature outside of specified range
CANNOT DYN SPAN
Dynamic Span operation
failed
Measured concentration value is too high or low.
Concentration slope value too high or too low
CANNOT DYN ZERO
Dynamic Zero operation
failed
Measured concentration value is too high.
Concentration offset value too high.
CONFIG INITIALIZED
Configuration and
Calibration data reset to
original Factory state.
Failed disk on module
User erased data
DARK CAL WARNING The Dark Cal signal is
higher than 200 mV.
Light leak in reaction cell
Shutter solenoid is not functioning
Failed relay board
I
2 C bus failure
Loose connector/wiring
PMT preamp board bad or out of cal
DATA INITIALIZED Data Storage in DAS was
erased
Failed disk on module
User cleared data
HVPS WARNING High voltage power supply
output is <400 V or >900 V
High voltage power supply is bad
High voltage power supply is out of cal
A/D converter circuitry is bad
IZS TEMP WARNING On units with IZS options
installed: The permeation
tube temperature is Sample
chamber temperature is
< 45°C or > 55°C
Bad IZS heater
Bad IZS temperature sensor
Bad relay controlling the IZS heater
Entire relay board is malfunctioning
I
2 C bus malfunction
Failure of thermistor interface circuitry on motherboard
PMT DET WARNING PMT detector output is >
4995 mV
Failed PMT
Malfunctioning PMR preamp board
A/D converter circuitry failure