Symbol QRG 7875 Manual
  1. Manuals
  2. Brands
  3. Symbol Manuals
  4. Scanner
  5. QRG 7875
  6. Manual
Symbol QRG 7875 Manual

Symbol QRG 7875 Manual

Symbol qrg 7875 scanner/ scale
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
7 8 7 5
S c a n n e r / S c a l e

Advertisement

Table of Contents
loading

Related Manuals for Symbol QRG 7875

Summary of Contents for Symbol QRG 7875

  • Page 1 7 8 7 5 S c a n n e r / S c a l e...
  • Page 2 Symbol reserves the right to make changes to any product to improve reliability, function, or design. Symbol does not assume any product liability arising out of, or in connection with, the application or use of any product, circuit, or application described herein.

  • Page 3: Installation Steps

    Q u i c k R e f e r e n c e Installation Steps When installing the 7875 Scanner/Scale, follow the installation steps below. Skip step 4 if the unit does not have a scale. 1. Verify Checkstand Preparation, see page Checkstand Cutout Display Clearance Service Clearance...
  • Page 4 7 8 7 5 S c a n n e r S c a l e Verify Checkstand Preparation Checkstand Cutout 7875-1000/2000 No electronics under 7875 * Recommended shelf to catch the 7875 if dropped during installation, although 7875 must not be supported by this shelf. 7875-1000 29.51 cm 50.95 cm...
  • Page 5 Q u i c k R e f e r e n c e Note: Dimension A for a 7875-2000 includes a spacer along the side of the unit so that it fits an existing 7870-2000 cutout. Checkstand Cutout – 7875-3000 No electronics under NCR 7875 29.51 cm 40.96 cm 3.49 cm 0.95 cm...

  • Page 6: Display Clearance

    7 8 7 5 S c a n n e r S c a l e Display Clearance This area must be clear for viewing optional integrated display. Service Clearance Mounting surface for keyboard must be removable for servicing and vertical window replacement.

  • Page 7: Item Diverter

    Q u i c k R e f e r e n c e Item Diverter 7.25 in. (18.4 cm) Item Diverter (Must be removable to service Scanner/Scale in checkstand) Ventilation Requirements The 7875 Scanner/Scale is designed to operate without an exhaust fan in the checkstand;...
  • Page 8 Isolated/Insulated Circuit Breakers Ground Bus Symbol circuits should be run in separate metal conduits. Note: Symbol circuits must be dedicated to Symbol equipment or other logically connected electronic equipment (modems, DAA, bridges, etc.) Circuit B: Terminal Circuit C: Scanner/Scale...

  • Page 9: Connect The Cables

    Q u i c k R e f e r e n c e Note: The 7875 outlet in the checkstand must be connected to a circuit breaker switch. This switch must be located close to the operator and is used as the On/Off switch for the 7875.
  • Page 10 7 8 7 5 S c a n n e r S c a l e Single Cable Installation DUAL PERIPHERAL PORTS Check switch settings Power PORT 1 PORT 2 Cord 7875 Power Scanner/Scale Supply DC Power Cable RS-232 Peripheral Interface Cable Host Terminal Remote...
  • Page 11 Q u i c k R e f e r e n c e Dual Cable Installation DUAL PERIPHERAL PORTS Check switch settings Power PORT 1 PORT 2 Cord 7875 Power Scanner/Scale Supply DC Power Cable RS-232 Peripheral Scale Interface Cable Host Terminal Remote...
  • Page 12 The cable on some RS-232 hand-held peripheral devices is not long enough to connect to the 7875 (under the checkstand) and still permit easy use of the device. In these cases, Symbol recommends installing an extension cable. You can obtain one from Symbol or you can make your own.
  • Page 13 Q u i c k R e f e r e n c e other communication protocols, both switches must be toward the back (customer side) of the unit. AUX PORT/ SCANNER DATACHKR DATACHKR OCIA/IBM Make sure power is off before changing switch setting RS-232 RS-232...
  • Page 14 7 8 7 5 S c a n n e r S c a l e Align the 7875 to the Checkstand The leading edge of the Top Plate must be flush or up to 1/16 in. (0.15 cm) below the top of the checkstand. The trailing edge of the Top Plate must be flush or up to 1/16 in.

  • Page 15: Calibrate The Scale

    Q u i c k R e f e r e n c e High Surface High Surface Low Surface Low Surface Correct Alignment Bad Alignment Scanner Too High Bad Alignment Scanner Too Low Calibrate the Scale Note: To comply with governmental weights and measures regulations, you must be certified to perform the cali- bration function.

  • Page 16: Exercise The Scale

    S c a l e Service Calibration Display is required unless your 7875 has voice enabled. Calibration information is NOT sent to the host terminal. Contact your Symbol representa- tive about calibrating the scale. Note: The interface cable between the 7875 and host terminal must be disconnected during calibration.

  • Page 17: Access The Calibration Switch

    Q u i c k R e f e r e n c e Access the Calibration Switch The Calibration Switch is located below the Top Plate. Remove the Top Plate to access to the Calibration Switch cover. Lift the cover up to remove.

  • Page 18: Verify The Calibration

    7 8 7 5 S c a n n e r S c a l e Calibrate the Scale 1. Press the Scale Zero Button to display the Cal and PAr values. Record these values. 2. Access the Calibration Switch, then place the top plate on the unit before pressing the switch.
  • Page 19 Q u i c k R e f e r e n c e Weight Remove Step Feature Add Weight Weight Display Result 9.995 kg 2.5 kg 0.1 kg 2.5 ± 0.00 kg 13.995 kg 2.5 kg 0.1 kg 2.5 ± 0.00 kg 30.0 lb.
  • Page 20 7 8 7 5 S c a n n e r S c a l e Weight Remove Step Feature Weight Weight Display Result 9.995 kg 0.04 kg 9.995 ± 0.005 kg 13.995 kg 0.04 kg 13.995 ± 0.005 kg 30.0 lb.
  • Page 21 Q u i c k R e f e r e n c e Shift Test This test involves moving a weight off the center point of the top plate to check for continued accuracy. 1. Place 5.00 kg (15.00 lb.) of weight in position 1 on the Top Plate.

  • Page 22: Secure The Calibration Switch

    7 8 7 5 S c a n n e r S c a l e Secure the Calibration Switch When you perform a scale calibration, seal the Calibration Switch cover with a lead/wire seal using a lead/wire seal press or a film/ paper seal (obtained locally).

  • Page 23: Scan Sample Tags

    Q u i c k R e f e r e n c e Change the 7875 program by scanning the proper sequence of programming tags included with the unit. To make program changes: 1. Enter the Base Programming state by scanning the Program- ming Mode tag;...
  • Page 24 7 8 7 5 S c a n n e r S c a l e UPC-A 7 7 0 6 2 3 7 9 2 0 Code 39 Code 128 1 7 7 0 6 2 3 7 9 2 0 Interleaved 2 of 5 0 1 7 7 0 6 2 3 7 9 2 0...

  • Page 25: Operating The Scanner

    Q u i c k R e f e r e n c e Operating the Scanner The 7875 is a fixed-position device installed in a checkout counter, and is not moved by the operator during operation. The 7875 is maintained and serviced by trained service personnel only.

  • Page 26: Operating The Scale

    7 8 7 5 S c a n n e r S c a l e Operating the Scale The 7875 typically takes from 1.0 to 2.0 seconds to weigh an item, depending on the item’s weight. Heavier items take longer. Before weighing an item, make sure the scale displays all zeros.
  • Page 27 Q u i c k R e f e r e n c e Cleaning Keep the scan windows clean to keep the read rate exceptionally high. During normal operation the scan windows can accumulate dirt, which degrades performance to the point where the scanner cannot read bar codes.

  • Page 28: Correcting Scanner Problems

    7 8 7 5 S c a n n e r S c a l e Correcting Scanner Problems Status Possible Problem Indicator Tone Cause Corrective Action Scanner does Red Off No power Check electrical outlet for not operate Green Off to the unit proper power.

  • Page 29: Correcting Scale Problems

    Q u i c k R e f e r e n c e Correcting Scale Problems Problem Possible Cause Corrective Action Error code 5---- Scale drift Verify that nothing is on the scale. displays Lift the Top Plate and verify that no objects are under it.

  • Page 30: Determining The Communication Protocol

    7 8 7 5 S c a n n e r S c a l e Determining the Communication Protocol Use the following procedure to determine the communications protocol programmed in your 7875. 1. Apply power to the 7875. 2. Scan the Diagnostic Mode tag; this must be the first tag scanned after applying power.

  • Page 31: Programming Worksheets

    Q u i c k R e f e r e n c e Programming Worksheets This section describes the options used to program your scanner/ scale using the bar codes in the Programming Tags Guide. Numbers and letters in boxes represent Hex bar codes to scan when selecting each option.
  • Page 32 7 8 7 5 S c a n n e r S c a l e TIMERS Lockout Time (Milliseconds) 1050 1200 1350 1500 Restart Lockout Timer Active Time (Minutes) No Time-out ( Always Active) Note: We recommend that you do not set the Active Time parameter to 0.

  • Page 33: Interleaved 2 Of 5

    Q u i c k R e f e r e n c e CODE 39 Code 39 Disable Enable Minimum Characters Allowed Default 2 - F Full ASCII Disable Enable Check Digit Present Disable Enable Transmit Check Digit Disable Enable Allow One-Character Tags Disable...

  • Page 34: Code 128

    7 8 7 5 S c a n n e r S c a l e CODE 128 Code 128 Disable Enable Minimum Data Characters Allowed UCC 128 Disable Enable LABEL IDENTIFIERS Identifier Type Default Prefix None Unique Prefix Common Byte 1 Default 0 - 7 0 - F...
  • Page 35 Q u i c k R e f e r e n c e RS-232 PARAMETERS - SET 1 Baud Rate 1200 2400 4800 9600 19200 Note: Parity must be Odd or Even on a Parity 7870/7875; Odd is used if Even None None is selected.
  • Page 36 7 8 7 5 S c a n n e r S c a l e RS-232 PREFIX BYTE Prefix Byte Disable Enable 4 Comma Prefix On 4 Comma Prefix Off ASCII Code Default 0 - 7 0 - F Hex Character Hex Character (ASCII Code Chart)

  • Page 37: Scale Parameters

    Q u i c k R e f e r e n c e SCALE PARAMETERS Model Number Scanner/Scale Scanner Only IBM Address Address 6A Address 6B Address 6E Speak Display Price Toggle On and Off MISCELLANEOUS PARAMETERS 5-Second Weight Display Timer Disable Enable IBM Tone Control...

  • Page 38: Ascii Code Chart

    7 8 7 5 S c a n n e r S c a l e Dual Cable Interface Options Scale Type No Adapter - Avery Weightronix Casio Datachecker Toledo Exit Parameter Parallel Parallel ASCII Code Chart ASCII Code Chart NULL "...

  • Page 39: Regulatory Information

    Q u i c k R e f e r e n c e Regulatory Information Radio Frequency Interference Requirements This device has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the Federal Communications Commissions Rules and Regulation.

  • Page 40: Laser Devices

    • EN 60 825-1 (EN 60 825) - Safety of Devices Containing Lasers Laser Devices Symbol products using lasers comply with US 21CFR1040.10, Subchapter J and IEC825/EN 60 825 (or IEC825-1/EN 60 825-1, depending on the date of manufacture). The laser classification is marked on one of the labels on the product.

  • Page 41: Scanner Labeling

    Q u i c k R e f e r e n c e Scanner Labeling Class IIa Laser Product. Avoid Long-term Viewing of direct Laser Light. Appareil à Laser de classe IIa Eviter Toute Exposition Prolongèe de la vue à la lumiè re laser directe. Class IIa Producto Laser.
  • Page 42 7 8 7 5 S c a n n e r S c a l e In accordance with Clause 5, IEC 0825 and EN60825, the following information is provided to the user: ENGLISH HEBREW CLASS 1 CLASS 1 LASER PRODUCT CLASS 2 LASER LIGHT DO NOT STARE INTO BEAM...

  • Page 43: Service Information

    It shall not apply to any product (i) which has been repaired or altered unless done or approved by Symbol, (ii) which has not been maintained in accordance with any operating or handling instructions supplied by Symbol, (iii) which has been...
  • Page 44 Customer will pay for the replacement product in case it does not return the replaced product to Symbol within 3 days of receipt of the replacement product. The process for return and customer’s charges will be in accordance with Symbol’s Exchange Policy in effect at the time of the exchange.

Table of Contents