26
WIKA Operating Instructions Level Transmitter
– BLM-SF-FM
4.2.2.17 Selection of the used magnet type
The sensor functions with several float magnet types. For correct function,
the type of the used magnet type has to be entered into the sensor.
Due to the fact that a wrong magnet type affects measurement seriously,
the customer should take extreme care when using this function. The set-
ting is not affected by a reset to factory defaults.
Access: Setup -> Sensor -> Magnet
Possible settings:
Setting
Possible magnets
magnetisation
sensor position
-N-
→
Bar magnet
Tri-pole (with pole disc)
radial, N
outwards
in direction of the pole,
max. 25 mm from pole
-S-
→
Bar magnet
Tri-pole (with pole disc)
radial, S outwards
in direction of the pole,
max. 25 mm from pole
↑S-N-S↓
Tri-pole (with pole disc
**)
radial, N in middle
in direction of the pole,
max. 25 mm from pole
↑N-S-N↓
Tri-pole (with pole disc
**)
radial, S in middle
in direction of the pole,
max. 25 mm from pole
*) standard value
**) suitable for weak magnetic fields. The sensor will work without temperature compensation.
4.2.2.18 Display of the serial number
The serial number can be displayed for informative reasons, if it is not
readable from the outside.
Access:
Setup -> Sensor -> Info -> Serial
4.2.2.19 Display of the maximum temperature
The maximum electronics temperature is recorded and can be displayed
for informative reasons.
Access:
Setup -> Sensor -> Info -> TM ___°C
