Balluff BFT Serie Manual De Instrucciones página 24

Temperature sensor
BFT _ _ _ _-_ _003-_ _ _A0C-_ _
Operation
Error display
The display shows internal errors. The following table
shows the error codes and their meaning:
Error code Description
ATT1 When the switchpoint is changed the
system automatically decrements the
reset point.
ATT3 Incorrect password entry for menu
access
ATT4 TAG cannot be shown in display (e.g.
special characters)
ERR Internal error
OL Measuring range exceeded > approx.
5 % (display flashes)
UL Measuring range undershot > approx.
5 % (display flashes)
► Confirm error display by pressing the Enter key.
When a fault occurs first check whether the
temperature sensor is electrically and
mechanically correctly installed and try to
eliminate the causes of the error (see table).
If the faults cannot be cleared using the listed
actions, immediately place the temperature
sensor out of service, protect against
unintended startup and contact the
manufacturer.
Fault
No output signal
No output signal/cable break
No output signal
No/incorrect output signal
Incorrect output signal
Incorrect output signal
Incorrect output signal and
excessively long response
time
Signal span too small
Signal span drops off
10 english
Possible cause
Cable break
Excessive mechanical stress
No or incorrect auxiliary power
Wiring error
Process temperature outside the
measuring range
Sensor drift from over-temperature sensor
break/short circuit
Sensor drift from chemical attach
Wrong installation geometry, too little
installation depth and too high heat
dissipation
Deposits on the sensor
Auxiliary power too high/low
Moisture penetrated
Action
Check continuity
Replace element with appropriate version
Correct auxiliary power
Check wiring configuration
Check temperature range
Return unit to manufacturer
Check media compatibility
Bring temperature sensitive area of the
sensor into the medium
Remove deposits
Correct auxiliary power
Install cable correctly