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M a i n t e n a n c e l
5 - 9
5
Maintenance
C a l i b r a t i n g / A d j u s t i n g t h e S e n s o r
( c o n t i n u e d )
5
Hold a finger over the front of the sensor and make sure that the yellow LED ring
illuminates
to indicate that the sensor is functioning properly.
6
Operate the mixer manually to ensure that the yellow LED ring does not light when
mixer blade passes the face of the sensor.
✒
Tip
: If this does occur, make sure the sensor is inserted flush with the rear plate of the mixing chamber. If the unit
still sees the mixer while in operation, turn the mixer blade to the position where the sensor is sensing the blade and
repeat step 4. This will adjust the sensitivity of the sensor so that the blade is invisible, but the material will still be
sensed during operation.
For most applications setting the sensor with no material in the vessel is sufficient. A large
amount of fines or regrind or a low bulk density material may require calibrating or adjusting
the sensor with material present in the bin. Making a full adjustment (material present) does
not change the empty adjustment.
Calibrating with material present
1
With material present, use a small screwdriver or pen and press the OUT ON
adjustment push button until the yellow LED ring flashes at a rate of 1Hz
- this
should take about 2 seconds. Release the OUT OFF button and the yellow LED ring
will turn off. The sensor is now set for the mixing chamber with material present.
IMPORTANT - do not adjust the OUT ON LED, this will change the operation of the
level sensor and it will no longer work for this application.
Summary of Contents for TrueBlend SB-4
Page 6: ...iv l Table of Contents...
Page 38: ...3 10 l Installation...
Page 134: ...4 96 l Operation...
Page 160: ...6 10 l Troubleshooting...
Page 165: ...Appendix l C 2 Hole Locations for Blow Off Kit...
Page 168: ...D 3 l Appendix...