Conair GB/ WSB manual Recalibration of Load Cells, Zero, Wait, Full

Page 92

RECALIBRATION OF LOAD CELLS

This unit was calibrated at the factory to match the load cells that were supplied with it. If you recalibrate, note the following:

Recalibration can not be done until the Recalibration flag is turned ON. The proper sequence of keystrokes 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 design full batch weight for your system, (400, 1000, 2000, 4000, 9000, or 18000 grams).

When done, their is no need to turn the Calibration Flag off. The next time power is turned off this flag will be reset to OFF.

The sequence of keystrokes is as follows:

+-----------------------------------------------------------

 

 

 

 

 

 

+

¦ Press:

*

Display

will say:

(PASSWORD)

¦

¦ Press:

22222

Display

will say:

(P

 

x.x)

¦

¦ Press:

*99

Display

will say:

(CAL

OFF)

¦

¦ Press:

*

Display

will say:

(CAL

ON )

¦

¦ Press:

EXIT

Display

will say:

(P

 

x.x)

¦

¦ Press:

ZERO

Display

will say:

(--

WAIT--

)

¦

¦

 

followed by:

(P

 

0.0)

¦

¦

 

 

 

 

 

 

 

¦

¦ Place the correct weight for your model in the bin.

¦

¦

 

 

 

 

 

 

 

¦

¦ Press:

FULL

Display

will say:

(FUL

-----

)

¦

¦ Press:

2000

Display

will say:

(--

WAIT--

)

¦

¦

 

followed by:

(P 2000.0)

¦

¦

 

If YOUR

weight is not 2000 grams,

¦

¦

 

enter the ACTUAL weight that YOU use.

¦

¦

 

 

 

 

 

 

 

¦

¦ Press:

EXIT

Display

will say:

(

2000.0)

¦

¦ Remove weights:

Display

will say:

(

 

x.x)

¦

¦

 

 

 

 

 

 

 

¦

¦Actual displayed weights may be plus or minus a few grams.¦ +-----------------------------------------------------------+

After FULL weight calibration, if the display says (BAD CELL), 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.

Page 93

Image 92
Contents Gravimetric Blenders Date Manual Number UGB006/1103 Serial numbers Model numbers Part Troubleshooting / Software Part Hardware MaintenanceFour Component Software Part OperationAssembly Instructions Check OUT ProcedureSpecial Features Proceed to Safety Hazards NextSafety Hazards MIX Blades Safety Features Safety Interlock SwitchProceed to Assembly Next Additional MIX Blade HazardDisclaimers Part Assembly Load Cells are Easily DamagedPlease Be Careful On the NextPage Wiring Considerations Proceed to Check OUT Procedure NextProcedure What should Happen Plug in Controller Turn Power onAT this Point Touch Weigh BIN Very LightlyPress Alarm KEY Press REG KEYLED # Press NAT KEYPage Password ExitPart Operation Load Cell Calibration Be SureCAL OFF CALProceed to Normal Operation Next OperOperate COLSelected Models Special Instructions Micro PulseGB/WSB MB GB/WSB 240RIf Problems Develop Power OFFPower on Instructions for Normal OperationNormal Operating Sequence Each Cycle Exit Regrind Eight Character Display ROM OKRight Column Alarms Strobe Light and Beeper AlarmsAlarm Silence LED LightsMixer Motor Fuse Mixer Motor ON/OFF/TIMED SwitchMixer Motor Outlet Internal Fuses KeypadDate Keypad Automatic Operation Mode RecipeRUN RCPTABLE, FLG SaveBtch Page Fast TAGKeypad Manual Mode ALLTimed Time ADDPage Keypad Program Mode YLD Ctrl ParaStar Functions Page Page Page Page Page Page Page Page MIX Time ParametersParameter List Brief Explanations XXX RLO Page CPL Full Explanation of Parameters No ALARM, no Retries MPOMIX KDF / WDF BERPage ROV Page Example RHL is Set 10 percent Page Setting SETPage Page Page Page Page XTP XCV + XRCTCV + TRC XAL XULMCT PTDLIQ Page Parameter Default Settings Four Software FLG RPO NPO CPOAPO MPO RAL NAL CAL AAL MIX JOGNPT CPT APT RWT RTINWT NTIChanging Parameters Prnt OFF PrntREG Natural COL TotalFinal DISP,% What to Check for Page Page Page Special Tests TimeTime Natural Calibrate NaturalMaterial Usage Information PARAMETER, PRTDate Time Totals Grand PCT Current Cycles Last Printed 11/01/90Part IV Troubleshooting What to do Increasing Throughput Typical Problems Page Normal Operating Sequence Material Runs OUT Verifying Load Cell Function CNT Load Cell RAW Signal ReadoutCNT OFF Results to Expect Core Dump Clear RoutineClear ALL Restart Weigh BIN Dump Valve Soft Close Clean OUT Issues MIX Problems Page Recalibration of Load Cells ZeroWait FullBlender Preventive Maintenance Dispense GatesLoad Cells Weigh BinsThese Instructions for Totalizers only Special Totalizer Function Stop END of CycleBlender TotalizeComputer Outputs Wiring Supplement Call Appendix A-2 Specifications Gravimetric Batch Blenders Autoweigh GBM Series ModelsGravimetric Batch Blenders AutoWeigh GB100 Series Models TOP View Front View Side View120V/1 phase/50-60 Hz 240V/1 phase/50-60 Hz Gravimetric Batch Blenders GB 220 and 420 ModelsGravimetric Batch Blenders AutoWeigh GB240 and GB440 Models TOP View Mounting InterfaceGravimetric Batch Blenders AutoWeigh GB900 Series Models 2124Gravimetric Batch Blenders AutoWeigh GB1840 and 1860 Models GB1840 GB1860Gravimetric Batch Blenders Wsbm Series models Control Remote Mounted Models WSBM22 WSBM131 WSBM140Gravimetric Batch Blenders WSB 100 and 100R Models Side View Front View Side View, R Model Front View, R ModelGravimetric Batch Blenders WSB 220 and 420 Models 24.4Gravimetric Batch Blenders WSB 240/440 and 240/440R Models WSB442Gravimetric Batch Blenders WSB 1840, 1850 and 1860 Models Appendix C Appendix C Appendix C Appendix C Appendix C Appendix C Appendix C Appendix C