KROHNE LS 6500 EN - Manual (Page 20)

4
ELECTRICAL CONNECTIONS
20
LS 6500
www.krohne.com 03/2013 - 4000649103 - MA LS 6500 R03 en
4.6 Teach-In function
A Teach-In procedure may be necessary for a medium with a low dielectric constant.
If the media is sticky, foamy or powdery or in other ways leaving parts of the media at the sensor
tip, this situation has to be established also during the Teach-In process.
1 12...36 VDC / - or (+)
2 Sensor
3 Output
4 Teach-In
5 Cover
6 12...36 VDC / + or (-)
Step Action LED Result
1 Connect terminal "Teach-In" to -
VDC (T1 or T2) for 3.5 s.
Flash 1 time per second. Ready for Teach-In.
2 With "no media present" connect
"Teach-In" to -VDC shortly.
Light for 2 seconds and then
flash.
Register "empty" state.
If the media is sticky, foamy,
powdery or in other ways leaving
parts of the media at the sensor
tip this situation has to be
established also during the
Teach-In process. Otherwise a
faulty calibration can be the
result.
3 With "media present" connect
"Teach-In" to -VDC shortly.
Light for 2 seconds. Register "full"state, store and
return to normal operation with
the new settings
.book Page 20 Tuesday, March 12, 2013 11:33 AM