PC-802 Counting Scale User`s Manual - Avery Weigh
Contents
1. mode repeatedly press the SAMPLE key until the sample size you want is displayed Place 10 sample parts on the scale one at a time or all at once Wait for the scale to stabilize then press the SAMPLE key Add the requested samples one at atime or all at once to those already on the scale Wait for the scale to stabilize and press the SAMPLE key PC 802 Counting Scale User s Manual Your display may show ZEro briefly This occurs if it takes time for the scale to find the Zero Reference Your display may show no ZEro briefly if the scale can not find a Zero Reference Check to be sure the scale is stable and retry step 1 if this occurs If all is OK you will see the following Add 10 is displayed 10 is the sample size in this example The minimum sample size can be configured to be 1 2 5 10 25 50 or 100 See the Service Manual for configuration instructions Add will flash until the SAMPLE key is pressed then StAndbY is dis played while the unit computes the weight of the sample and displays the count If the scale determines that the sample size meets the minimum accuracy requirement 10 will be displayed If the scale determines the sample size does not meet the minimum accuracy requirement the display will prompt you to Add XXX more parts When prompting you Add will flash StAndbY is displayed while the scale updates the piece weight If the sample meets the minimum accuracy the cou2. 14ie2 Printedin USA Table of Contents Table of Gey 519 Cee ee ee ee 3 SPecMCANON Shena EE 4 PUB SON e a E E EEEE E E A EE 5 Keyboard and Sy a cteccetecetece teva vccetecsh suet cuactslasdaasuilestiestdendoeseseneaeceeccucce 5 Key FUNCOMS oa cccccceccaccesesasesasecasesusessdgeee eecuses seedensessaucseescicenccesndeet 6 Scale Setup and Operation sdexsccczeariceracaxecacaecradsenansunaiarenomaasmsivaacanxeenee 6 Scale SGUD reee eE E E 6 Unpacking the Scale s sorsi Eana 6 Battery power option sicssssussnsimrauicieaiaramanermaineneancenstanntads 6 Installing TSS CM sss 6 Operation as a Scale ace iainssaccesanecanenescdanacandinuierantiieuemuaelemiaceontend 7 Operation as a Counting Scale sczvectveceesexenssvesceaddansdendieedconemeneesexe 8 B K Sampling o ec cece ee eenccene steep ee teee eee ee eases gece 8 Dibble SamMplN g eee eee een eee eee 9 Se al COMMIMMICAU ONS 22 cecccoteceeccecasececececesdscedadanaustecengusceuctensceceueushiededde 10 Preset Print FOrmatS esi isiin ihipa ea aaa aeni 11 Computer PIOlOCOl ese ccccccceccacacnenencactedennicieaeienintnniticnneuntebmmcntendcesaases 12 Error Messages ssrin a E 13 PC 802 Counting Scale User s Manual 3 Specifications Capacities and Resolutions Overcapacity Limits Internal Resolution Filters Display Power Output Operating environment Capacity Normal Resolution Expanded Resolution 0 001 Ib 0 00005 Ib 0 005 Ib 0 0002 Ib 0 01 Ib 0 0005 Ib 0 005
3. Avery Weigh Tronix PC 802 Counting Scale User s Manual UNITED STATES This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CANADA This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le present appareil numerique n emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la Class A prescrites dans le Reglement sur le brouillage radioelectrique que edicte par le ministere des Communications du Canada CAUTION Risk of electrical shock Do not remove cover No user serviceable parts inside Refer servicing to qualified service personnel Avery Weigh Tronix reserves the right to change specifications at any time 09 28 05 802_U P65 PN 29672 00
4. HT annunciator is lit The ZERO indicator illuminates Gross weight is displayed The TARE annunciator illuminates and zero weight is displayed Net weight of material is displayed Weight information is printed Operation asa There are two sampling methods which are selectable during configura tion bulk sampling and dribble sampling If you use the bulk sampling Counting Scale method you must place all the sample parts on the scale at the same time The minimum sample size is selectable during configuration 1 In weigh or count mode Bulk Sampling repeatedly press the SAMPLE key until the sample size you want is displayed Important If the scale has been recali brated reset scale resolution to your needs Calibration automatically sets resolution to 10000 divisions If there is no piece weight the scale will not go into count mode when you press the COUNT WEIGHT key When you press the SAMPLE 2 Place 10 sample parts on the key the PC 802 performs an scale at the same time autozero operation So if you have a container on the scale and press the SAMPLE key the container weight will be zeroed and when you place the parts to be counted on the scale only the weight and count of the parts will be computed 3 Add the requested samples to those already on the scale Wait for the scale to stabilize then press the SAMPLE key If you use the dribble method you may place the samp
5. RO Zeroes the scale weight or count TARE Tares the weight on the scale SAMPLE Used to select a sample size and to initiate the calculation of sample piece weight PRINT Sends data to RS 232 device COUNT WEIGHT Toggles between displaying weight and count Scale Setup and Operation Scale Setup Unpacking the scale Battery power option A PC 802 with the backlight enabled and a fully charged battery may be expected to last 12 hours before recharging is necessary With the backlight disabled the battery will last approximately 24 hours Installing the scale Important If the scale has been recali brated reset scale resolution to your needs Calibration automatically sets resolution to 10000 divisions The PC 802 comes with the AC transformer in place beneath the scale Plug the unit into a grounded 120VAC source If you are going to use the optional DC battery power remove the trans former from beneath the scale place the battery in its place with padding between the battery and the scale base and around the battery Secure the battery with the restraining strap Plug the battery cable into the receptacle on the back of the scale The battery can be recharged in place by connecting the transformer to a power source and to the scale The battery will recharge while the scale is being powered by the transformer Press any key on the front panel to turn the scale on when powered by the battery You can set the battery
6. W weight character C count character T tare character G gross weight character P piece weight character weight type identifier G for gross T for tare and N for net Net weight only WWWW WW lt CR gt lt LF gt Net weight with units WWWW WW lt SP gt UU lt CR gt lt LF gt GTN with units G lt SP gt GGGG GG lt SP gt UU lt CR gt lt LF gt T lt SP gt TTTT TT lt SP gt UU lt CR gt lt LF gt N lt SP gt WWWW WW lt SP gt UU lt CR gt lt LF gt Displayed weight with identifier I lt SP gt WWWW WW lt CR gt lt LF gt In Count Mode N lt SP gt CCCC lt SP gt PCS lt CR gt lt LF gt In Weigh Mode I lt SP gt WWWW WW lt SP gt UU lt CR gt lt LF gt Net weight with units count and piece weight Net WWWW WW lt SP gt UU lt CR gt lt LF gt Net or Gross Count CCCCCCC lt CR gt lt LF gt Piece Wt PPPPPP lt SP gt UU lt CR gt lt LF gt Fixed length nine digits displayed weight with units SXXXXX XX UU lt CR gt s positive a space or negative weight COUNT CCCC lt SP gt PCS lt CR gt lt LF gt PC 802 Counting Scale User s Manual 11 Com puter Protocol The scale s RS 232 bidirectional communication works in a master slave protocol A computer or master sends a command code to the scale slave which will return a response to the master device or perform a scale function Commands to the scale are in uppercase terminated with a carriage return Scale responses begin with the lowercase equi
7. ge the error roErr ROM error press the TARE key to acknowledge the error EPr Err EEPROM error press the TARE key to acknowledge the error CAL Err Calibration error perform calibration procedure to correct se eal Middles dashes on power up indicate the scale was not stable or there was too much weight on the scale Remove the weight or the cause of unstable weight and press the ZERO key If condition persists try relocating scale and or power down and retry If condition continues contact your Avery Weigh Tronix representative PC 802 Counting Scale User s Manual 13 14 PC 802 Counting Scale User s Manual Weigh Bar is a registered trademark of Avery Weigh Tronix and may be registered in certain jurisdictions Allbrands and product names used within this documentare trademarks or registered trademarks of their respective holders Avery Weigh Tronix _ _ Avery Weigh Tronix USA 1000 Armstrong Dr Fairmont MN 56031 USA Telephone 507 238 4461 Facsimile 507 238 4195 e mail industrial weigh tronix com www wtxweb com Avery Weigh Tronix UK Foundry Lane Smethwick West Midlands England B66 2LP Tel 44 870 90 34343 Fax 44 121 224 8183 Email info awtxglobal com Web site www averyweigh tronix com Avery Weigh Tronix Canada ULC 217 Brunswick Boulevard Pointe Claire QC HOR 4R7 Canada Telephone 514 695 0380 Toll free 800 561 9461 Facsimile 514 695 6820 www weigh tronix ca
8. kg 0 00002 kg 0 002 kg 0 0001 kg 0 005 kg 0 0002 kg Overcapacity indication upper dashes will occur at 9 divisions over rated capacity or 102 of full scale capacity 1 part in 2 000 000 QDT Standard digital software filtering Seven digits of seven segment high contrast black LCD 5 1 3 cm high with blue electro luminescent backlight 15VDC at 300mA from a 117VAC 60Hz inline transformer Optional 12VDC lead acid battery Bidirectional RS 232 output with selectable baud rate 14 to 104 F 10 to 40 C 10 to 90 relative humidity non condensing PC 802 Counting Scale User s Manual Introduction This manual tells you how to operate the PC 802 high precision counting scale You can configure your scale for different options and sampling methods See the PC 802 Service Manual for details on configuration and calibration This scale also has an RS 232 I O channel for communication with appropriate remote devices Keyboard and Display Figure 1 shows the keyboard and display of the PC 802 The keyboard has five keys ZERO e TARE e SAMPLE e PRINT e COUNT WEIGH The display contains seven digits and has four triangular annunciators COUNT e WEIGHT lb kg and four indicators e ZERO e TARE e STABLE e LO BAT q or f f 4 COUNT WEIGHT LALALA lt STABLE ZERO Figure 1 PC 802 Keyboard and Display PC 802 Counting Scale User s Manual 5 Key Functions ZE
9. le parts onto the scale a few at a time The two methods are covered below Your display may show ZEro briefly This occurs if it takes time for the scale to find the Zero Reference Your display may show no ZEro briefly if the scale cannot find a Zero Reference Check to be sure the scale is stable and retry step 1 if this occurs If all is OK you will see the following Add 10 is displayed 10 is the sample size in this example The minimum sample size can be configured to be 1 2 5 10 25 50 or 100 See the PC 802 Service Manual for configu ration instructions StAndbyY is displayed while the unit computes the weight of the sample and displays the count If the scale determines that the sample size meets the minimum accuracy requirement 10 will be displayed If the scale determines the sample size does not meet the minimum accuracy requirement the display will prompt you to Add XXX more parts When prompting you Add will flash StAndbY is displayed while the scale updates the piece weight If the sample meets the minimum accuracy the count will be dis played Press the COUNT WEIGHT key to toggle between count and weigh mode You may tare a container while in either mode 8 PC 802 Counting Scale User s Manual Dribble Sampling Important If the scale has been recali brated reset scale resolution to your needs Calibration automatically sets resolution to 10000 divisions 1 From weigh or count
10. nt will be dis played Serial Communications Cable Pinouts Pinout assignments for the serial communication are shown below 9 pin Female Scale A straight through cable 1 to 1 2 to 2 etc can be used from a 9 pin computer serial port to connect this scale Zebra 2443 Orion You may choose to print an Orion printer bar code label This printer has one g z format shown below It can be chosen through the configuration menu ex Printer Fixed Format plained in the Service Manual The active unit of measure will be printed This Label Output example shows the weight in LB and the time and date line If your printer is not equipped with time and date capability the time and date line will not appear on the label AAAA Al 1 040 LB G PIECE WEIGHT 0 094 LB T 0 946 LB N 127 PCS 4 52 PM 08 30 05 0 007462 LB Time and date line only appear if the printer has time and date capability 10 PC 802 Counting Scale User s Manual Preset Print Formats If the scale is in count mode displayed weight formats will send weight not count Format 0 Format 1 Format 2 Format 3 Format 4 Format 5 Format 6 Format 7 There are eight preset serial print formats Choose the one you want to use during configuration of the scale See the Service Manual for configuration instructions The formats are described below Abbreviations CR carriage return LF line feed SP space U units character
11. option to shutoff the scale automatically after a period of time See the Service Manual for this information Place the scale on a stable level surface out of the way of air currents Use the adjustable feet to level the scale Be sure the scale does not rock back and forth Lock the feet in position with the locking nuts PC 802 Counting Scale User s Manual Operation as a Scale The scale will always power up in normal weighing mode The PC 802 can be used as a bench scale or as a counting scale The annunciators indicate when you are in the weight mode or count mode and when the unit is configured for pounds or kilograms Indicators let you know when the scale is stable no motion when the scale is at zero and when a tare is in effect Follow these instructions for operating the PC 802 as a scale 1 For AC powered models plug the unit into a grounded 120VAC source For battery powered models press any key 2 Zero the scale by pressing the ZERO key 3 For gross weighing place the object to be weighed on the scale 4 For net weighing place object to be tared on the scale and press the TARE key 5 Place material to be weighed on the scale 6 If your scale is hooked up to a printer press PRINT to print a weight PC 802 Counting Scale User s Manual The scale performs an internal diagnostics test then displays the weight in the weigh mode The scale is in the weigh mode when the WEIG
12. valent of the command code COMMAND RESPONSE DESCRIPTION a e co O O De Te O O a DIXXXxxxXxxx lt CR gt Display Message xxxx message is 8 characters max PWx xxxxx_uu lt CR gt Loads x xxxxx as piece weight W lt CR gt __ _X XxxuuHML lt CR gt Request net weight with units and status WG lt CR gt wg__ _XX xxxuu lt CR gt Request gross weight with units WM lt CR gt Switch to weight mode WS lt CR gt ws_HML lt CR gt Request scale status Legend 12 Fetis represents the ASCII space character U aean represents the units of measure character s erii LB for pounds aor KG for kilograms poisia G for grams lt CR gt represents the ASCII carriage return HML represents three bytes of scale status information as described on the next page Value entered is assumed to be in same units of measure as what the scale is currently in Display messages are limited to seven characters PC 802 Counting Scale User s Manual Scale Status Byte H BIT 76543210 0011XXXX L 1 In motion 1 At zero 1 Under capacity 1 Tare active Scale Status Byte M BIT 76543210 0011XXXX m Negative Over cap 1 1 1 PROM checksum error 1 faulty calibration Scale Status Byte L BIT 76543210 0011000X L low battery unused unused unused ooo Error Messages The error messages you might see on the display are shown below rAErr RAM error press the TARE key to acknowled
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