Babbitt LS6000 Basic Features Sensor - Manual (Page 9)

SPECIAL CALIBRATION NOTES:
For some products, the LS6000 can be calibrated with product touching the probe. To do this, turn the
sensitivity adjust pot CW until the red LED just comes on and continue CW for 1/8 to ¼ of a turn. Always
check to see if the unit resets in the absence of product.
INTERFACE CALIBRATION
For applications such as an oily water interface, the unit should be calibrated in the less electrically
conductive fluid (oil) and the unit will then “ignore” the oil, but sense the water.
5. MAINTENANCE AND TROUBLESHOOTING
No routine maintenance is required other than keeping the interior of the unit clean and free of dirt, dust and other
contaminants.
The LS6000 consists of three main sub-assemblies. These are the enclosure, the antenna probe and the electronics.
The following troubleshooting guide will assist in determining how to correct most of the problems which may
occur in sections 3 and 4.
PROBLEM POSSIBLE CAUSE SOLUTION
RED LED cannot be adjusted to
turn on. Antenna lead not connected
No power to unit.
Bad electronic card. Plug antenna lead into probe.
Check for correct power to unit.
Repair or replace card.
RED LED remains on at all times Antenna probe is shorted to case
or ground.
Bad sensing card. Unplug banana plug and position
it so that the bare end is not
touching anything. Turn
calibration pot 20 turns CCW.
LED should go out. If it does,
repair, replace or clean antenna
probe. If LED does not go out,
replace electronics.
Repair or replace card.
Unit triggers when material
touches probe, but will not reset
when material recedes from probe
or unit and gives false alarm. Improper mount of probe.
Improper calibration procedure.
Excessive material build-up on
probe.
Probe is mounted in flow of
material. Contact factory or dist.
See section 4B.
Perform “dirty probe calibration”:
Recalibrate with built up material
on probe. See section 4B.
Revise mounting.
Unit will not detect material. Improper calibration.
Antenna lead not plugged into
probe.
Unit was calibrated with material
touching probe. See calibration instructions,
section 4.
Plug antenna lead into probe.
Be sure material is not touching
probe and recalibrate.
Unit will not stay in calibration. Poor grounding of unit to vessel. Provide secure ground connection.
Relay operates properly, but no
signal at terminals. Burned or broken lands on the
printed circuit board.
Bad relay contacts. Turn off power. Remove module
from housing and inspect lands on
printed circuit for damage.
Replace if necessary.
Replace relay or return for repair.
PLEASE CONTACT THE FACTORY OR YOUR DISTRIBUTOR IF YOU HAVE ANY
QUESTIONS OR NEED ASSISTANCE
.
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