Babbitt LS2100 Loop-Powered Sensor - Manual (Page 6)

CALIBRATION INSTRUCTIONS
PLEASE READ THE ENTIRE CALIBRATION PROCEDURE BEFORE CALIBRATING
A. Jumper Selection
The jumper labeled J1 and located adjacent to the potentiometer is used to choose whether the output will be
16mA when product is touching the probe or 16mA when product is not touching the probe.
1.
When the J1 jumper is in the Far Right position and LS2100 is properly calibrated the Red LED will be lit
and output will be 16mA when product is touching the probe.
2. When J1 jumper is in far left position and LS2100 is properly calibrated the Red LED will be off and the
output will be 8mA when product is touching the probe.
3. Sensitivity Calibration (See next Step) should always be performed with J1 jumper in Far Right
position.
4. See Diagram Below
NOTE: Due to the wide variety of applications and possible control or alarm functions, the proper
jumper selection will depend on your circumstances. Please call your distributor or the factory if you
need assistance.
B. Sensitivity Calibration
The LS2100 should be calibrated when no material is touching the probe, when the unit is installed where it will
be used and the J1 jumper set in the far right (closest to Red LED) position.
Needs different wording,
unclear.
1) Observe the red LED. If it is on, go to step 3.
2) If the red LED is off, turn the sensitivity adjustment potentiometer clockwise (CW) until it comes on.
3) Turn the sensitivity adjustment pot counter-clockwise (CCW) until the red LED just goes out. This sets the
unit to its maximum sensitivity. If in your application this is too sensitive, you can turn the sensitivity
adjustment pot further CCW; usually ¼ to ½ turn is sufficient to reduce the units sensitivity. Always bring
the product into contact with the probe after calibration to assure proper performance.
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