M501-Trs Troubleshooting; Trs Converter Not Heating - Teledyne T102 Operation Manual

Teledyne API - T102/501 TRS, Addendum to T101 Operation Manual
TEST NOMINAL
FUNCTION VALUE(S)
HVPS ≈ 400 V to 900 V
RCELL TEMP 50ºC ± 1ºC
ambient
BOX TEMP
+ ~ 5ºC
7ºC ± 2ºC
PMT TEMP
constant
IZS TEMP
50ºC ± 1ºC
(OPTION)
ambient
PRESS
± 2 IN-HG-A
SLOPE
1.0 ± 0.3
OFFSET < 250 mV
TIME OF DAY
Current time

11.2. M501-TRS Troubleshooting

11.2.1. TRS Converter Not Heating:

07267B DCN6485
Incorrect HVPS reading could be caused by; HVPS broken; preamp board circuit
problems.
Incorrect temperature reading could be caused by: malfunctioning heater; relay
board communication (I
Incorrect temperature reading could be caused by: Environment out of
temperature operating range; broken thermistor; runaway heater
Incorrect temperature reading could be caused by: TEC cooling circuit broken;
High chassis temperature; 12V power supply
Malfunctioning heater; relay board communication (I
Incorrect SAMPLE pressure could be due to: pneumatic leak; malfunctioning
valve; malfunctioning pump; clogged flow orifices; sample inlet overpressure;
faulty pressure sensor
Slope out of range could be due to: poor calibration quality; span gas
concentration incorrect; leaks; UV Lamp output decay.
High offset could be due to: incorrect span gas concentration/contaminated zero
air/leak; low-level calibration off; light leak; aging UV filter; contaminated
reaction cell; pneumatic leak.
Incorrect Time could be caused by: Internal clock drifting; move across time
zones; daylight savings time?
Problems with heating the If the TRS converter oven can have several causes.
The "UUUU" error code shown on the M501-TRS temperature controller
•
display indicating a problem with the thermocouple
• Check the resistance across the thermocouple leads for opens or
shorts.
• Check to make sure that the thermocouple leads are securely
connected to the wiring block at the back of the controller.
• Make sure that the wiring block/socket is correctly plugged onto
socket on the back of the controller.
The set point for the process value is set incorrectly.
•
• Check the set value; if it is incorrect, reset it.
The controller is not in operational mode.
•
• Press the PV/SV switch to return it to operation mode.
The heater is malfunctioning.
•
TROUBLESHOOTING and REPAIR
POSSIBLE CAUSE(S)
1
C bus); relay burnt out
1 C bus); relay burnt out
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