Maguire Products Weigh Scale Blender WSB, Operation & Maintenance Manual

Page: 82 / 99

M A G U I R E P R O D U C T S , I N C .
Edition: August 6, 2014
82
W E I G H S C A L E B L E N D E R
®
Load Cell Recalibration
This unit was properly calibrated at the factory to match the load cells that were supplied with it. If you are going to
recalibrate, note the following. The proper sequence is given below.
BE SURE
the load cell plug is plugged into the side of the controller.
BE SURE
the weigh bin is hanging from the load cells freely.
BE SURE
the air line to the dump valve is connected as it would be
during normal operation. (A disconnected air line adds weight.)
Air pressure to the line is not necessary.
BE SURE
there is nothing touching the weigh bin or air line.
BE SURE
the bin is EMPTY when ZEROING the load cells.
ZERO WT. must be done before FULL WT. Since changes in ZERO WT will also shift the FULL WT scale by the
same amount, it may not be necessary to go any farther than this.
When SETTING FULL WEIGHT, BE SURE you know the exact weight (in GRAMS) that you are adding to the bin.
Place this weight in the bin and then press the FULL WT. key. Five dashes (FUL-----) will be displayed.
Enter the EXACT weight in GRAMS that you have placed in the bin. The weight should be close to the designed full bin
weight; (400, 1000, 2000, 4000, 9000, or 18000).
Load Cell Recalibration:
Press
OPTIONS
Display will say:
ENTER PASSWORD
Press
then, press Enter
Display will show menu options
Press
SPECIAL FUNCTIONS
Display will show menu options
Press
SETUP
Display will show menu options
Press
Calibrate Load Cells
Display will show: Calibrate load cells and a
“
SET ZERO WT
” button.
Press
SET ZERO WT
Confirm weigh bin is empty. Press the
DUMP BIN
button to
dump any material out of the weigh bin. When bin is
confirmed empty, press
Yes
.
Display
Wait while calibrating load cells. Do not touch weigh bin during calibration.
After zero calibration has completed successfully press OK.
Press
SET FULL WT
Display will show a keypad and the message: Enter the
known weight and then press enter. Enter your known weight
in
GRAMS
and then press enter.
Place the known weight in the weigh bin and then properly re-install the weigh bin into the blender. Press
CONTINUE
to proceed.
Display
Wait while calibrating load cells. Do not touch weigh bin during calibration.
After Full calibration has proceeded successfully, you will be prompted.
Press
Ok
to complete the calibration. Press EXIT three times to exit out of SETUP.
After FULL weight calibration, if the display says BAD LOAD CELL, then the weight you are using does not match the
weight you entered, the weigh bin is not free to move, OR the load cells are bad.