Teledyne T100 Instruction Manual page 263

Teledyne ML - T100 UV Fluorescence SO2 Analyzer
Warning Message
PMT DET WARNING
PMT TEMP WARNING
RCELL TEMP
WARNING
Mother Board not detected
REAR BOARD NOT
on power up.
DET
Sample flow rate is < 500
SAMPLE FLOW WARN
cc/min or > 1000 cc/min.
Sample Pressure is <10 in-
SAMPLE PRES WARN
Hg or
> 35 in-Hg
Sample Pressure is <10 in-
SAMPLE PRES WARN
Hg or
> 35 in-Hg
The computer has
SYSTEM RESET
rebooted.
UV LAMP WARNING
The UV lamp intensity is <
600mV or > 4995 mV
1
Normally 29.92 in-Hg at sea level decreasing at 1 in-Hg per 1000 ft of altitude
(with no flow – pump disconnected).
IMPORTANT
Fault Condition
Failed PMT
PMT detector output is >
Malfunctioning PMR preamp board
4995 mV
A/D converter circuitry failure
Bad PMT thermo-electric cooler
PMT temperature is
Failed PMT TEC driver circuit
< 2°C or > 12°C
Bad PMT preamp board
Failed PMT temperature sensor
Loose wiring between PMT temperature sensor and PMT Preamp board
Malfunction of analog sensor input circuitry on motherboard
Bad reaction cell heater
Sample chamber
Bad reaction cell temperature sensor
temperature is
Bad relay controlling the reaction cell heater
< 45°C or > 55°C
Entire relay board is malfunctioning
2
I
Warning only appears on serial I/O COMM port(s)
Front panel display will be frozen, blank or will not respond.
Massive failure of mother board.
Failed sample pump
Blocked sample inlet/gas line
Dirty particulate filter
Leak downstream of critical flow orifice
Failed flow sensor/circuitry
If sample pressure is < 10 in-hg:
1
If sample pressure is > 35 in-hg:
If sample pressure is < 10 in-hg:
1
If sample pressure is > 35 in-hg:
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
UV lamp is bad
Reference detector is bad or out of adjustment.
Mother board analog sensor input circuitry has failed.
Fogged or damaged lenses/filters in UV light path
A/D converter circuitry failure
Light leak in reaction cell
Shutter solenoid stuck closed
A failure of the analyzer's CPU, motherboard or power supplies can result in any or ALL
of the above messages.
06807A(DCNxxxx)
Possible Causes
C bus malfunction
o Blocked particulate filter
o Blocked sample inlet/gas line
o Failed pressure sensor/circuitry
o Blocked vent line on pressurized sample/zero/span gas supply
o Bad pressure sensor/circuitry
o Blocked particulate filter
o Blocked sample inlet/gas line
o Failed pressure sensor/circuitry
o Blocked vent line on pressurized sample/zero/span gas supply
o Bad pressure sensor/circuitry
Troubleshooting & Repair
263