Rice Lake 120 Technical Manual
  1. Manuals
  2. Brands
  3. Rice Lake Manuals
  4. Accessories
  5. 120
  6. Technical manual

Rice Lake 120 Technical Manual

Digital weight indicator
Hide thumbs Also See for 120:
Table of Contents

Advertisement

Quick Links

See also: Installation Manual
120
Digital Weight Indicator
Version 2.0
Technical Manual
PN 76699 Rev B

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 120 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Rice Lake 120

Summary of Contents for Rice Lake 120

  • Page 1 Digital Weight Indicator Version 2.0 Technical Manual PN 76699 Rev B...

  • Page 3: Table Of Contents

    Course descriptions and dates can be viewed at www.ricelake.com/training or obtained by calling 715-234-9171 and asking for the training department. © Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America. Specifications subject to change without notice.
  • Page 4 7.8 Specifications ..............34 Rice Lake continually offers web-based video training on a growing selection of product-related topics at no cost.

  • Page 5: Introduction

    • Electronic data processing (EDP) port for full duplex, RS-232 communications at up to 38400 bps • Printer port for output-only RS-232 and 20 mA current loop communications at up to 9600 bps The 120 is NTEP-certified for Classes III and III L at 6,000 divisions. See Section 7.8 on page 34 for detailed specifications.

  • Page 6: Operating Modes

    When configuration is complete and a legal seal is affixed to the back of the indicator, this is the only mode the 120 can operate in. See Section 1.6.1 on page 4 for more information about normal mode operations.

  • Page 7: Led Annunciators

    LED Annunciators The 120 display uses a set of eight LED annunciators to provide additional information about the value being displayed: • (gross) and (net) annunciators are lit to show whether the displayed weight is a gross or net weight.

  • Page 8: Indicator Operations

    Indicator Operations Use the following instruction for basic operation of the 120. 1.6.1 Weighing Mode Operations Operation instructions when in the weighing mode. Toggle Gross/Net Mode Press the key to switch the display mode from gross to net, or from net to gross. If a tare value has been GROSS/NET entered or acquired, the net value is the gross weight minus the tare.

  • Page 9: Installation

    • 9V power supply adapter (PN 78611 for 115 VAC units, PN 78612 for 230 VAC units) Enclosure and Connectors The back of the 120 enclosure provides a 3-pin power connection, 9-pin D-sub connector for communications, and an available 6-pin connector or load cell cord grip connector for load cell connection (see Figure 2-1).

  • Page 10: Load Cells

    Wire the load cell cable from the load cell or junction box to connector J1 as shown in Table 2-3. Function –EXC –SEN –SIG +SIG +SEN +EXC Table 2-3. J1 Pin Assignments with Load Cell Cord Grip 120 Digital Weight Indicator Technical Manual...

  • Page 11: Enclosure Disassembly

    (CPU board is mounted to front half of enclosure; power, communications, and load cell connections all connect to the bottom of the CPU board.) 6. Reverse steps to reassemble enclosure. Replacement Parts Table 2-4 lists replacement parts for the 120 indicator. Description 78609 CPU Board...

  • Page 12: Configuration

    Configuration Methods The 120 indicator can be configured by using the front panel keys to navigate through a series of configuration menus or by sending commands or configuration data to the EDP port. Configuration using the menus is described in Section 3.1.3.

  • Page 13: Edp Command Configuration

    3.1.2 EDP Command Configuration The EDP command set can be used to configure the 120 indicator using a personal computer, terminal, or remote keyboard. Like Revolution, EDP command configuration sends commands to the indicator EDP port; unlike Revolution, EDP commands can be sent using any external device capable of sending ASCII characters over a serial connection.

  • Page 14: Menu Structures And Parameter Descriptions

    Menu Structures and Parameter Descriptions The following sections provide graphic representations of the 120 menu structures. In the actual menu structure, the settings you choose under each parameter are arranged horizontally. To save page space, menu choices are shown in vertical columns. The factory default setting appears at the top of each column.
  • Page 15 CONFIG Menu Parameter Choices Description Level 2 submenus GRADS 10000 Graduations. Specifies the number of full scale graduations. The value entered must be in the range 1–100 000 and should be consistent with legal requirements and environmental number limits on system resolution. To calculate GRADS, use the formula, GRADS = Capacity / Display Divisions.

  • Page 16: Format Menu

    DSPRAT 250MS Display rate. Sets the update rate for displayed values. Values are in milliseconds (MS) or seconds (SEC). 500MS 750MS 1SEC 1500MS 2SEC 2500MS 3SEC 4SEC 6SEC 8SEC Table 3-3. Format Menu Parameters 120 Digital Weight Indicator Technical Manual...
  • Page 17 FORMAT Menu Parameter Choices Description Level 3 submenus Primary Units (PRIMAR Parameter) DECPNT 888888 Decimal point location. Specifies the location of the decimal point or dummy zeroes in the primary unit display. Value should be consistent with local legal requirements. 8.88888 88.8888 888.888...

  • Page 18: Calibration Menu

    Press Enter to remove an offset value from the zero and span calibrations. Use this parameter only after WZERO and WSPAN have been set. See Section 4.1 on page 19 for more information about using this parameter. Table 3-4. Calibration Menu Parameters 120 Digital Weight Indicator Technical Manual...

  • Page 19: Serial Menu

    3.2.4 Serial Menu See Section 7.2 on page 27 for information about the 120 serial data format. PROGRM PFORMT CONFIG FORMAT CALIBR SERIAL TIME DATE VERS PRINT BAUD BITS TERM BAUD BITS TERM ECHO 9600 8NONE 9600 8NONE CR/LF CR/LF...
  • Page 20 Selects number of data bits and parity of data transmitted from the printer port. 7ODD 7EVEN 7SPACE TERM CR/LF Termination character. Selects termination character for data sent from the printer port. Table 3-5. Serial Menu Parameters (Continued) 120 Digital Weight Indicator Technical Manual...

  • Page 21: Program Menu

    3.2.5 Program Menu PROGRM PFORMT CONFIG FORMAT CALIBR SERIAL TIME DATE VERS PWRUPM REGULA CONSNU CONSTU NTEP OIML number number DELAY CANADA NONE Figure 3-7. Program Menu PROGRM Menu Parameter Choices Description Level 2 submenus PWRUPM Power up mode. In GO mode, the indicator goes into operation immediately after a brief power up display test.

  • Page 22: Print Format Menu

    Level 2 submenus SHOW HH.MM.SS Displays current time in HH.MM.SS format HOUR hour (HH) Set hour using 24-hour format MINUTE minute (MM) Set minute SECOND second (SS) Set second Table 3-7. Time Menu Parameters 120 Digital Weight Indicator Technical Manual...

  • Page 23: Date Menu

    3.2.8 Date Menu Date can also be set by the operator in panel mode. See Section 1.6.2 on page 4. PROGRM PFORMT CONFIG FORMAT CALIBR SERIAL TIME DATE VERS SHOW YEAR MONTH 03.01.01 display date 00–99 01–12 01-31 Figure 3-10. Date Menu DATE Menu Parameter Choices...

  • Page 24: Calibration

    Calibration The 120 can be calibrated using the front panel, EDP commands, or the Revolution® configuration utility. Each method consists of the following steps: • Zero calibration • Entering the test weight value • Span calibration • Optional rezero calibration for test weights using hooks or chains.

  • Page 25: Edp Command Calibration

    EDP Command Calibration To calibrate the indicator using EDP commands, the indicator EDP port must be connected to a terminal or personal computer. See Section 2.2.1 on page 5 for EDP port pin assignments; see Section 5.0 on page 21 for more information about using EDP commands.

  • Page 26: Edp Commands

    EDP Commands The 120 indicator can be controlled by a personal computer or remote keyboard connected to the indicator EDP port. Control is provided by a set of EDP commands that can simulate front panel key press functions, display and change setup parameters, and perform reporting functions.

  • Page 27: Parameter Setting Commands

    5.1.4 Parameter Setting Commands Parameter setting commands allow you to display or change the current value for a particular configuration parameter (Tables 5-3 through 5-8). Current configuration parameter settings can be displayed in either configuration mode or normal mode using the following syntax: command<ENTER>...
  • Page 28 Table 5-7. PROGRM EDP Commands Command Description Values WWPF Print characters of format string See Section 6.0 on page 25 for detailed information Print hex values of format string Table 5-8. PFORMT EDP Commands 120 Digital Weight Indicator Technical Manual...

  • Page 29: Saving And Transferring Data

    Saving and Transferring Data Connecting a personal computer to the 120 EDP port allows you to save indicator configuration data to the PC or to download configuration data from the PC to an indicator. The following sections describe the procedures for these save and transfer operations.

  • Page 30: Print Formatting

    (PFORMT menu). 6.2.1 Using the EDP Port With a personal computer, terminal, or remote keyboard attached to the 120 EDP port, you can use the EDP command set to customize the print format string. To view the current setting of the print format, type WWPF (to enter ASCII text) or WPF (to enter hex values) then press .

  • Page 31: Using The Front Panel

    6.2.2 Using the Front Panel If you have no access to equipment for communication through the EDP port or are working at a site where such equipment cannot be used, you can use the PFORMT menu (see Figure 6-1) to customize the print format. Using the PFORMT menu, you can edit the print format string by changing the hex values of the ASCII characters in the format string.

  • Page 32: Appendix

    Error Messages Continuous Output (Stream) Format Figure 7-1 shows the continuous output format sent to the 120 EDP or printer port when the STREAM parameter (SERIAL menu) is set to either EDP or PRN. <STX> <POL> <wwwwwww> <UNIT> <G/N> <S> <EXTEND> <TERM>...

  • Page 33: Front Panel Display Characters

    Front Panel Display Characters Figure 7-2 shows the 7-segment LED character set used to display alphanumeric characters on the 120 front panel. Figure 7-2. Display Characters Appendix...

  • Page 34: Ascii Character Chart

    120 PFORMT menu. The actual character printed depends on the character mapping used by the output device. The 120 can send or receive any ASCII character value (decimal 0–255), but the indicator display is limited to numbers, upper-case, unaccented letters, and a few special characters.
  • Page 35 ASCII ASCII ASCII ASCII  Ç á  ü í  é ó  â ú  ä ñ  à Ñ  å ª  ç º  ê ¿  ë  è ¬  ï  î ...

  • Page 36: Conversion Factors For Secondary Units

    Conversion Factors for Secondary Units The 120 has the capability to mathematically convert a weight into many different types of units and instantly display those results with a press of the key. UNITS Secondary units can be specified on the FORMAT menu using the SECNDR parameter, or by using EDP commands.

  • Page 37: Digital Filtering

    Digital Filtering The 120 uses averaged digital filtering to reduce the effect of vibration on weight readings. Adjustable threshold and sensitivity functions allow quick settling by suspending filter averaging, allowing the weight reading to jump to the new value. Digital filtering parameters are set using the CONFIG menu.

  • Page 38: Test Mode

    Test Mode In addition to normal and setup modes, test mode provides a number of diagnostic functions for the 120, including: • Display raw A/D count • Display digital filter raw counts • Reset configuration parameters to default values • Transmit test character (“U”) from serial port •...

  • Page 39: Specifications

    Specifications Power Serial Communications Line Voltages 115 or 230 VAC EDP Port Full duplex RS-232, 1200–38400 bps Frequency 50 or 60 Hz Printer Port Output-only RS-232 or active 20 mA Power Consumption 15 mA @ 115 VAC (2 W) current loop, 1200–9600 bps Both Ports 7 or 8 data bits;...
  • Page 40 120 Digital Weight Indicator Technical Manual...
  • Page 42 Specifications subject to change without notice. Rice Lake Weighing Systems is an ISO 9001 registered company. 230 W. Coleman St. • Rice Lake, WI 54868 • USA U.S. 800-472-6703 • Canada/Mexico 800-321-6703 • International 715-234-9171 • Europe +31 (0)26 472 1319 www.ricelake.com www.ricelake.mx www.ricelake.eu www.ricelake.co.in m.ricelake.com...

Table of Contents