Samson 43-6, Монтаж и эксплуатация

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EB 2172 EN 8-1
Malfunctions
8 Malfunctions
8.1 Troubleshooting
Malfunction Possible reasons Recommended action
Temperature at the
sensor exceeds the
set point.
Seat and plug are worn or leak.
Î
Clean the seat and plug.
Î
Replace the damaged seat and plug.
Î
Contact SAMSON's After-sales Service.
Foreign particles blocking the plug
Î
Remove foreign particles.
Î
Replace damaged parts.
Î
Contact SAMSON's After-sales Service.
A safety device (e.g. STL or STM) has been
triggered.
Î
Check plant. Unlock safety device (where
necessary).
Sensor installed in the wrong location.
Î
Change the mounting position.
Sensor installed incorrectly.
Î
Immerse the temperature sensor with its entire
immersion depth in the process medium.
Î
Avoid an installation site where idle times or
heat buildup can occur.
Regulator or K
VS
/C
V
coefficient too large
Î
Check the sizing.
Î
Change K
VS
/C
V
coefficient, if necessary or
install a different sized regulator.
Î
Contact SAMSON's After-sales Service.
Temperature at the
sensor fluctuates.
Regulator or K
VS
/C
V
coefficient too large
Î
Check the sizing.
Î
Change K
VS
/C
V
coefficient, if necessary or in -
stall a different sized regulator.
Î
Contact SAMSON's After-sales Service.
Sensor installed in the wrong location.
Î
Change the mounting position.
Sensor installed incorrectly.
Î
Immerse the temperature sensor with its entire
immersion depth in the process medium.
Î
Avoid an installation site where idle times or
heat buildup can occur.
Slow control
response
Time constant is too large for the control
loop.
Î
Fill the thermowell with thermal paste or
remove the thermowell.
Î
Use a sensor with smaller time constant (e.g.
vapor pressure thermostat).
Sensor installed incorrectly.
Î
Immerse the temperature sensor with its entire
immersion depth in the process medium.
Î
Avoid an installation site where idle times or
heat buildup can occur.