Avery Weigh-Tronix PC-902 User Instructions
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Avery Weigh-Tronix PC-902 User Instructions

Counting scale
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PC-902 Counting Scale
PC-902

User Instructions

ENGLISH - USA
43000-0018B e1
April 26, 2006
*43000-0018*

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Summary of Contents for Avery Weigh-Tronix PC-902

  • Page 1: User Instructions

    PC-902 Counting Scale PC-902 User Instructions ENGLISH - USA 43000-0018B e1 April 26, 2006 *43000-0018*...
  • Page 2 Avery Weigh-Tronix is a trading name of Weigh-Tronix, Inc Trademarks and acknowledgements Avery Weigh-Tronix, Avery Berkel, Dillon, NCI and Salter Brecknell are registered trademarks in certain jurisdictions. All third party brands and product names used within this document are trademarks or registered trademarks of their respective holders.

  • Page 3: Table Of Contents

    Contents page Contents ......................... 3 Introduction........................5 Contents 5 Keyboard and Display ....................6 Scale Setup and Operation .................... 8 Unpacking the Scale 8 Installing the Scale 8 Battery Power Option ....................9 Internal Battery ....................9 External Battery....................9 Operation as a Scale ....................
  • Page 4 PC-905 Counting Scale User Instructions...

  • Page 5: Introduction

    Introduction Contents This manual tells you how to operate the PC-902 high precision counting scale. You can configure your scale for different options and sampling methods. See the PC-902 Service Manual for details on configuration and calibration. This scale also has an RS-232 I/O channel for communication with appropriate remote devices.

  • Page 6: Keyboard And Display

    Keyboard and Display Keyboard and Display Figure shows the front panel of the PC-902. This is made up of the keyboard and display. Figure 2.1 PC-902 Front Panel There are six keys to the right of the display: • PRINT Sends serial data from the RS-232 port to a connected printer.
  • Page 7 Annunciator indicates weight on the scale is stable. • TARE Annunciator indicates a tare weight is in effect and displayed weight is net weight. • ZERO Annunciator indicates the scale is at center zero weight. PC-902 Counting Scale User Instructions...

  • Page 8: Scale Setup And Operation

    Be sure the scale does not rock back and forth. Lock the feet in position with the knurled locking rings. The PC-902 comes with the AC transformer in place beneath the scale. Plug the unit into a grounded 120VAC source.

  • Page 9: Battery Power Option

    3.3 Battery Power Option Battery Power Option The PC-902 has an internal and an external battery option. 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.

  • Page 10: Operation As A Scale

    Scale Setup and Operation Operation as a Scale The PC-902 can be used as a bench scale or as a counting scale. The annunciators indicate when you are in the weigh mode or count mode and when the unit is configured for pounds, kilograms, grams, or ounces.

  • Page 11: Operation As A Counting Scale

    When you press the SAMPLE key the scale performs an auto-zero or tare. A counting scale needs a minimum amount of weight to calculate counts with accuracy. Avery Weigh-Tronix recommends the sample weight be a minimum of 0.04% of scale capacity for 99% accuracy. The table below shows the minimum sample weights recommended to guarantee the accuracies listed.

  • Page 12: Counting Using Bulk Sampling

    Add 10. When you press the SAMPLE key, Add the requested samples to those already on the scale at the same the PC-902 performs an autozero time. . . operation. So, if you have an empty StAndbY is displayed while the scale updates the piece weight.

  • Page 13: Counting Using Dribble Sampling

    When you press the SAMPLE key, Add the requested samples to those already on the scale. Wait for the the PC-902 performs an autozero scale to stabilize, then press the SAMPLE key. . . operation. So, if you have an empty StAndbY is displayed while the scale updates the piece weight.

  • Page 14: Using Reverse Sampling For Counting, Method 1

    To begin reverse counting of parts, clear any entered tare weight, place all the parts back into the container and press ZERO. As parts are removed, the count of items removed is displayed as a negative number. PC-902 Counting Scale User Instructions...

  • Page 15: Using Reverse Sampling For Counting, Method 2

    3.10 Clearing a Tare Weight You can clear the current tare weight by pressing the TARE key with no weight on the scale. The active tare will be deleted. PC-902 Counting Scale User Instructions...

  • Page 16: Serial Communications

    Serial Communications Serial Communications This section covers the serial communications capabilities of the PC-902. In this section you will find: Default serial settings are: • 4.1 - Cable Pinouts (page 16) 9600 Baud, 8 databits, No parity, • 4.2 - Preset Print Formats (page 18) and 1 stop bit •...
  • Page 17 The functional pinout is as follows: DB-9F Scale Serial I/O Connector Signal Description Reserved Reserved SIG GND Reserved Reserved Reserved PC-902 Counting Scale User Instructions...

  • Page 18: Preset Print Formats

    I = weight type identifier ‘G’, ‘T’, ‘N’ (gross, tare or net) Ft 1 = Net weight only- WWWW.WW<CR><LF> Ft 2 = Net weight with units- WWWW.WW<SP>UU<CR><LF> Ft 3 = GTN with units- ‘G’<SP>GGGG.GG<SP>UU<CR><LF> ‘T’<SP>TTTT.TT<SP>UU<CR><LF> ‘N’<SP>WWWW.WW <SP>UU<CR><LF> PC-902 Counting Scale User Instructions...
  • Page 19 Ft 6 = Net weight with units, count and piece weight- = WWWW.WW<SP>UU<CR><LF>(Net = or Gross = ) Count = CCCCCCC<CR><LF> Piece Wt = PPPPPP<SP>UU<CR><LF> Ft 7 = Net weight only with polarity and units in a fixed field format. <SP/->WWWW.WWW<SP>UU<CR> PC-902 Counting Scale User Instructions...

  • Page 20: Dymo Label Writer Setra 300 Formats

    Serial Communications Ft 8 = Count only with a fixed field format- COUNT:<SP>CCCCCCC<SP>PCS<CR><LF> Dymo Label Writer Setra 300 Formats PC-902 Counting Scale User Instructions...

  • Page 21: Zebra 2844 Printer Formats

    4.2 Preset Print Formats Zebra 2844 Printer Formats Time and date will appear only if the printer has this option installed. PC-902 Counting Scale User Instructions...

  • Page 22: Pc Protocol

    Status Bytes below. 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-902 Counting Scale User Instructions...
  • Page 23 4.2 Preset Print Formats Status Bytes PC-902 Counting Scale User Instructions...

  • Page 24: Nci Protocol

    The decimal point position may be different depending on selected capacity and division. There may not be a decimal point in some gram’s unit of measure. The character count will be one more if the decimal point is included. PC-902 Counting Scale User Instructions...
  • Page 25 4.2 Preset Print Formats The NCI protocol may have three status bytes. The status bits are defined as follows: PC-902 Counting Scale User Instructions...

  • Page 26: Broadcast Protocol

    Serial Communications Broadcast Protocol Broadcast protocol will support the use of the RD-4100, RD-6100 and Evolution series indicators as remote displays. The broadcast protocol will output this display string: G<SP>00000<SP>lb<CR><LF> PC-902 Counting Scale User Instructions...

  • Page 27: Error Messages

    Sampling error, aborting process. Use next available sample size. CAn't Unable to perform the requested function ------- (middle segments) Unable to perform automatic zero balance on power-up ------- (upper segments) Over-range condition ------- (lower segments) Under-range condition PC-902 Counting Scale User Instructions...
  • Page 28 Error Messages PC-902 Counting Scale User Instructions...

  • Page 29: Specifications

    25,000d 50,000d 100,000d (Default) 5000 12000 25000 50000 Resolution can be expanded up to 500,000 divisions depending on the application. Capacity (oz) available countby values 5,000d NTEP 25,000d 50,000d 100,000d (Default) .005 .002 .005 1600 PC-902 Counting Scale User Instructions...
  • Page 30 +5 to 35 degrees C(Class II Device) 10 to 90% RH, non-condensing Agencies: NTEP 12,500 divisions pending, Class II (25, 50 lb capacities) NTEP 10,000 divisions pending, Class III (10, 100 lb capacities) OIML 6,000 divisions pending, Class III PC-902 Counting Scale User Instructions...
  • Page 32 Avery Weigh-Tronix USA 1000 Armstrong Dr. Fairmont MN 56031 USA Tel: 507-238-4461 Fax: 507-238-4195 Email: industrial@weigh-tronix.com www.wtxweb.com Avery Weigh-Tronix UK Foundry Lane, Smethwick, West Midlands, England B66 2LP Tel: +44 (0)870 903 4343 Fax: +44 (0)121 224 8183 Email: info@awtxglobal.com...

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