Teledyne T640, User Manual

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08354B DCN7877 Teledyne API T640 PM Mass Monitor 79
3. Remove the sample line inlet and replace with the T640 leak check kit
(084910000) or equivalent fitting with filter.
4. Within a few minutes, the PM values should be at zero; note the following:

PM values remaining below 0.2ug/m3 indicate that there are no leaks.

PM values remaining steady above 0.2ug/m3 indicate a possible leak in
the sample line, above the optical sensor.
o
Check o-rings and proper installation of couplers and tubing.
o
It is also possible the HEPA filter being used is either bad or leaking.
Always have a second filter handy to check.
5. When satisfied that the readings are stable and the condition has been
determined, remove the HEPA filter from the sample line, replace the sample
inlet, and then press “Stop” on the Leak Check screen.
TROUBLESHOOTING AND SERVICE
This section provides guidance for resolving fault conditions and possible flow and
calibration problems.
FAULT DIAGNOSIS
The Alerts log may be useful in diagnosing faults. Table 5-2 lists some of the Alerts
that are triggered by faults, describes their likely causes, and provides possible
solutions.
Table 5-2. Alerts and Recommendations
MESSAGE DESCRIPTION POSSIBLE SOLUTION(S)
System Reset Warning raised when the system is
reset Normal power cycle occurred? If not,
check external power source.
Sample Flow Warning The Sample Flow is outside the set
limits Check pneumatic fittings.
Re-calibrate flow.
Bypass Flow Warning The Bypass Flow is outside the set
limits Check pneumatic fittings.
Re-calibrate flow.
Sample RH High The Sample RH is above the set limit Check if ASC is plugged in.
Check control board if ASC control
LED is illuminated.
Check if water is in the sensor.
Check LED If the LED temperature is equal to the
box temperature, the LED may be OFF Cycle power.
Call Tech Support.
Check PMT The PMT HV setting is out of range
(800 – 2200) Check Sensor with SpanDust™.
Perform an optical chamber cleaning.
Call Tech Support.
Sample Flow Slope
Warning The Sample Flow Calibration Slope is
Out Of Range Check pneumatics for leaks.
Re-run flow calibration.
Call Tech Support.
BYPS Flow Slope
Warning The Bypass Flow Calibration Slope is
Out Of Range Check pneumatics for leaks.
Re-run flow calibration.
Call Tech Support.
Check Int Pump Check the internal pump if the Pump
PWM value is > 80% Check pneumatics for blockages.
Check pneumatics for leaks.
Check flow calibration.