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Summary of Contents for WeighTech MicroWeigh Standard Checkweigher
- Page 1 MicroWeigh Standard Checkweigher WeighTech, Inc. Staff Waldron, Arkansas 1-800-457-3720 April 25, 2014...
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Page 2: Table Of Contents
Contents 1 Introduction 1.1 MicroWeigh Features ......1.2 MicroWeigh Applications ......2 Keypad Operation 3 How to Step Through Menus 3.1 Menus can contain several different items . - Page 3 9.3 Banner Opto Sensors ......21 9.4 Before calling WeighTech......
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Page 4: Introduction
One consequence of the design of the touch sensitive keypad is that it is sensitive to water streams. For this reason, WeighTech includes a unique “washdown mode” to prevent unwanted keypad activity during washdown/sanitation/cleanup intervals. When the indicator is in washdown mode, the indicator will weigh normally but the keypad is locked out. -
Page 5: How To Step Through Menus
To unlock the keypad, you must play follow the leader. One key will be lit. Press it. Another key will then light up. Press it. Continue until the indicator displays “Exit washdown”. The indicator will require that you press five keys in a row correctly before it will unlock the keypad. -
Page 6: How To Select From A List
4.1 Scale On Procedure Touch the “Zero / On” key. Indicator will come on and display will read “MicroWeigh by WeighTech” and then continue to the weigh mode. At this point the scale is ready for product or operator input. -
Page 7: Scale Off Procedure
4.2 Scale Off Procedure To turn the scale off touch the “Menu / Help” key. The indicator will display “Power off *”. At this point touch the “Print / Enter” key and scale display will go blank, and the indicator will be off. (If the auto-on jumper is installed on the interface board, the indicator will immediately power up.) 4.3 Zero Procedure To zero the indicator touch and hold the “Zero / On”... -
Page 8: Establishing A Zero
5.4 Establishing a zero The indicator will display “Cal–zero weight”. Clear the weighing platform of any foreign objects and once all vibration has died out, press the “Enter” key. Make sure that the platform is not disturbed during this process. Indicator will display “Zeroing...” as it takes an average reading of the zero offset weight (about three seconds). -
Page 9: Calibration Warnings
“Check Zero Opto” This warning message indicates that at least 20 items have been seen by the second optical sensor (weigh opto) and not seen by the first optical sensor (zero opto). It will clear automatically as soon as the zero opto detects an item. -
Page 10: Menus
7 Menus 7.1 Main Level Power off Turn off the indicator Production Enter the production submenu Washdown Disable keypad to prevent false keypresses during washdown Calibrate Enter quick calibration routine Dynacal Dynamic calibration feature Setup menu Bunch of stuff...see below Audit cfg Number of times an audited config parameter has been changed (HB44) -
Page 11: Setup Menu
7.4 Setup Menu Parameters Scale stuff Check settings Checkweigher settings Info menu Debugging stuff Clock Set clock menu Control display intensity Contrast 7.5 Parameters S units Setup units: used for entering capacity and resolution (defaults to pounds) Scale capacity, in setup units Capacity Scale resolution, in setup units Resltn... -
Page 12: Check Settings
7.6 Check Settings Low lmt Low side of acceptable weight range High lmt High side of acceptable weight range Offset wgt Weight added to each sample to make static and dynamic weights equal Time to knockoff (in 1/100 of a second–100 is 1 second, 200 is 2 Delay to KO seconds) KO duration... -
Page 13: Info Menu
Raw ADC (analog to digital converter) counts display Filtered Filtered ADC counts Weight Live weight display (filtered and calibrated to pounds) Logging WeighTech use only Offset Calibration zero offset, in raw counts Name of firmware app (microcheck 1) Software revision info (Build 72) Build Date firmware was compiled (03/28/2014) -
Page 14: Production Menu
Dynacal Dynamic calibration routine. The password required to enter the calibration routine is to touch the Zero/On key (far right side of keypad) three times. The indicator will first prompt for a calibration weight and the calibration weight units. After the units are entered, the indicator will prompt you to remove all weight. -
Page 15: Totals Menu
8.3 Totals Menu * Cnt Total number of items that have been gone across the weighbridge, not counting any items too close to weigh. * Tot Total weight of all items that have been gone across the weighbridge, not includ- ing any that were spaced too closely to weigh. -
Page 16: Setup Menu
8.4 Setup Menu Parameters Enter the parameter menu, where all the important (nonvolatile) settings are located. A word of warning—the “Default” option exists to return the settings to the factory defaults. It will prompt for confirmation, but once you’ve defaulted the settings any changes you’ve made are gone forever. -
Page 17: Check Settings
Dynacal Dynamic calibration routine. The password required to enter the calibration routine is to touch the Zero/On key (far right side of keypad) three times. The indicator will first prompt for a calibration weight and the calibration weight units. After the units are entered, the indicator will prompt you to remove all weight. - Page 18 offset weight could indicate that the weighbridge is not level. This setting can be either positive or negative to compensate in either direction. Delay to KO Number of ticks from an item blocking the weigh beam to the knockoff. Adjust this value so that the rejects are properly knocked off the outfeed belt. KO duration Number of ticks that the knockoff will be extended.
- Page 19 Zero opto Select the operating mode for the first opto sensor. If the sensor is light acti- vated (normally open), select std mode. If the sensor is dark activated (normally closed), select rev mode. It is recommended to use std mode with the Banner opto sensors black wire output.
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Page 20: Info Menu
Weight Touch the enter key to enable a live display of the current weight, in pounds. Handy for troubleshooting and testing calibration. Logging WeighTech use only. Allows recording of ADC and sensor data for playback or transfer. Offset Current zero offset, in counts. Will update during an autozero cycle. -
Page 21: Troubleshooting
(available for purchase from WeighTech), or a known good load cell. Calibrate the scale with a convenient test weight and check to see if the weight reading is stable. If so, the noisy load cell has probably been damaged or water-soaked. -
Page 22: Before Calling Weightech
9.4 Before calling WeighTech... Write down a few key pieces of information. Gather the indicator serial number from the front panel, the software application name and build number from the “Info menu”, and grab the current settings if you have access to a Palm. If anything on the indicator has changed, been replaced, or been modified, mention that to the service technician too. -
Page 23: Drive Configuration (Tb Woods Drive)
11 Drive configuration (TB Woods drive) 11.1 Weighbridge Parameter Value Description P-01 150.0 Hz Maximum speed limit P-02 0.0 Hz Minimum speed limit P-03 1.0 s Acceleration ramp time P-04 1.0 s Deceleration ramp time P-05 Drive stop mode P-06 V/F characteristic select P-07 0.0 s... -
Page 24: Infeed/Outfeed
11.2 Infeed/outfeed Parameter Value Description P-01 100.0 Hz Maximum speed limit P-02 0.0 Hz Minimum speed limit P-03 1.0 s Acceleration ramp time P-04 1.0 s Deceleration ramp time P-05 Drive stop mode P-06 V/F characteristic select P-07 0.0 s Rapid deceleration ramp time P-08 1.10 A... -
Page 25: Replacement Parts
12 Replacement Parts Part Number Description 1000-115 Load cell, 30 kg capacity AA0004 Rod clevis, air cylinder AA0006 Air tubing, duo blue/black, 4 mm x 50 m AA0009 Air regulator AA0011 Cylinder flow control AC0008 Air cylinder AF0001 Air fitting, QS-1/8-6 (pack of 10) AF0006 Air fitting, QSL-1/8-6 (pack of 10) AF0007... -
Page 26: Wiring Diagram
JOB: CHECKWEIGHER PLANT: Tech LOCATION: Weigh PAGE: 1 OF 1 DRAWN BY: NEWELL DATE: 4-23-2014 FIRMWARE: MICROCHECK_1 SLOT TYPE FUNCTION DARK BLACK OAC-5 KNOCKOFF EXTEND RETRACT WHITE IDC-5K ZERO OPTO BEAM CLEAR BEAM BLOCKED WHITE IDC-5K WEIGH OPTO BEAM CLEAR BEAM BLOCKED LOAD CELL JP12... -
Page 27: Load Cell Color Codes
14 Load Cell Color Codes Manufacturer Models Signal + Signal - Excite + Excite - Shield Sense + Sense - Advanced Transducers Green White Black Bare wire Allegany Technology White Green Black Bare wire Artech Green White Black Beowulf White Green Black C2P1 C3P1 T2P1 T3P1... - Page 28 WeighTech, Inc. 1649 Country Elite Drive Waldron, AR 72958 Toll free: (800)-457-3720 Phone: (479)-637-4182 Fax: (479)-637-4183 Email: info@weightechinc.com Web: www.weightechinc.com $Id: microcheck_1.tex,v 1.25 2014/03/26 15:54:22 newell Exp $...
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