Rice Lake CB-2 Concrete Batch Controller Version 2.0 - Manual (Page 69)

Installation/Operation Manual - Appendix 65
10.5 CB-2 Moisture Probe
4-20 ma with max moisture of 20%
Configure scale 5, 6, 7 or 8 for analog input card associated with moisture probe
920i CONFIG
CONFIG
SCALE “X”
ALGIN – 20ma
GRADS – 200
MAX – 20.0
FORMAT
PRIMARY
DECPNT – 888888.8
DISDIV – 1D
UNITS - NONE
CAL
WZERO – 34636 (estimated raw count for 4ma input). Insert moisture probe into dry
sand and check input for 4ma raw count. This will be the actual reading for your plant.
WVAL – 20.00
WSPAN – 40867 (estimated raw count for 20ma input). Insert moisture probe into wet
sand and check input for 20ma raw count. This will be the actual reading for your plant.
CB-2
DATABASES
MATERIALS
ABSORBED MOISTURE – *Material absorption factor
LOCATIONS
MOSTURE PROBE ID ID 1= scale 5, ID 2= scale 6, ID 3= Scale 7, ID 4= Scale 8
PROBE MODE – static flow
TOTAL MOISTURE = “ZERO” when a moisture probe is used.
*Each material has an associated “Absorption Factor”. This is the maximum moisture level at which there is no
free water. If a material is below its absorption factor, some of the added water will be absorbed by the material
and will not be available to react with the cement. If it is above its absorption factor, some of the water in the
aggregate will be available.