Rice Lake 520 Installation Manual
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Rice Lake 520 Installation Manual

Digital weight indicator
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520
Digital Weight Indicator
Version 1.10
Installation Manual
68973

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Summary of Contents for Rice Lake 520

  • Page 1 Digital Weight Indicator Version 1.10 Installation Manual 68973...

  • Page 3: Table Of Contents

    Course descriptions and dates can be viewed at www.ricelake.com or obtained by calling 715-234-9171 and asking for the training department. © 2008 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America. Specifications subject to change without notice.
  • Page 4 12.3 Using the XE EDP Command ........... . . 73 520 Installation Manual...
  • Page 5 12.14 Specifications ..............87 520 Limited Warranty..........................88...
  • Page 6 520 Installation Manual...

  • Page 7: About This Manual

    Authorized distributors and their employees software. can view or download this manual from the Configuration and calibration of the indicator can be Rice Lake Weighing Systems distributor accomplished using the indicator front panel keys, the site at www.ricelake.com EDP command set, or Version 3.0 or later of the...

  • Page 8: Front Panel Display

    GN=grains. The units can also be set to NONE mode. In count mode, the displayed value is PC (Piece (no units information displayed). Count). Figure 1-2. 520 Front Panel Display Areas Indicator Operations Basic operations are summarized below: Gross mode is indicated by the letters Brutto in OIML mode) on the secondary display;...

  • Page 9: Zero Scale

    Some indicator configurations may not allow 1.3.3 Zero Scale NOTE: 1. In gross mode, remove all weight from the setpoint values to be changed through the front panel scale and wait for the standstill annunciator or may require a password to display or change the setpoint value.

  • Page 10: Display Accumulator

    (PC). Pressing the key sends the PRINT CFMT print format data string to the serial port. If a sample weight has not yet been acquired, the indicator switches automatically to sample acquisition mode (see Section 6.0 on page 47). 520 Installation Manual...

  • Page 11: Installation

    Desktop Model Parts Kit cells, digital I/O, and serial communications cables to The following items are found in the desktop model the 520 indicator. Instructions for field installation of parts kit: the analog output option and replacement of the CPU •...
  • Page 12 Figure 2-1. 520 Stainless Steel Panel Mount Cut Out Figure 2-2. 520 Desktop Model Panel Mount Cut Out 520 Installation Manual...

  • Page 13: Enclosure Disassembly

    Stainless Steel Panel Mount Model Disassembly inputs, and digital outputs. These connectors are all To remove the enclosure cover of the 520 panel mount externally mounted on the back of the indicator. model indicator, loosen and remove four Phillips head...

  • Page 14: Load Cells

    Table 2-2. J6 Pin Assignments 2.4.2 Panel Mount Parts Kit, PN 82427 Power connections to the 520 Panel Mount are shown below. This only applies to the panel mount. Table 2-3. Load Cell Pin-outs Part number 15888 is used to connect AC power to balloon number 12 of Figure 2-9 on page 14.
  • Page 15 Figure 2-6. 520 CPU and Power Supply Board Installation...

  • Page 16: Ethernet Communications

    Table 2-4. J5 Pin Assignments 2.4.5 Ethernet Communications Communications port J8 on the 520 CPU board is a special internal connection to the EDP port for RS-232 communications at up to 19200 bps. J8 can be used for wiring the Ethernet option card (PN 71986) to the 520 indicator.

  • Page 17: Analog Output Card Installation

    . S e e To install or replace the analog output option card, Section 12.12 on page 87 for analog output calibration open the 520 enclosure. See Table 2-1 on page 7 for procedures. option card addendum part numbers.

  • Page 18: Display Board Removal

    Display Board Removal Battery Replacement If you must remove the 520 display board, use the The lithium battery on the CPU board maintains the following procedure: real-time clock and protects data stored in the system RAM when the indicator is not connected to AC 1.

  • Page 19: Replacement Parts

    Replacement Parts Table 2-9 lists replacement parts common to both models of the 520, including all parts referenced in Figure 2-9 on page 14. Refer to Table 2-9 on page 15 for replacement parts specific to the desktop model. Ref Number...
  • Page 20 Figure 2-9. Stainless Steel Panel Mount Model Assembly 520 Installation Manual...

  • Page 21: Replacement Parts (Desktop Model Specific)

    Nylon washer 68403 2 prong black knob 78856 Bushing 77195 Tilt stand * Additional parts included in parts kit. See Section 2.1.2 on page 5 for additional parts information for the 520 desktop model. Table 2-9. Desktop Model Replacement Parts Installation...
  • Page 22 Figure 2-10. Desktop Model Assembly 520 Installation Manual...

  • Page 23: Configuration

    Figure 3-1. Sample Revolution Configuration Display The 520 indicator can be configured by using the front p a n e l k e y s t o n a v i g a t e t h r o u g h a s e r i e s o f 3.1.2...

  • Page 24: Front Panel Configuration

    3.1.3 Front Panel Configuration The 520 indicator can be configured using a series of menus accessed through the indicator front panel when the indicator is in setup mode. Table 3-1 summarizes the functions of each of the main menus. Menu...

  • Page 25: Menu Structures And Parameter Descriptions

    Figure 3-4. Editing Procedure for Numeric Values Menu Structures and Parameter Descriptions The following sections provide graphic representations of the 520 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.

  • Page 26: Configuration Menu

    3.2.1 Configuration Menu Figure 3-5. Configuration Menu 520 Installation Manual...
  • Page 27 CONFIG Menu Parameter Choices Description Level 2 submenus GRADS 10000 Specifies the number of full scale graduations. number The value entered must be in the range 1–9 999 999 and should be consistent with legal requirements and environmental limits on system resolution. To calculate GRADS, use the formula, GRADS = Capacity / Display Divisions.

  • Page 28: Format Menu

    BOTH: Both push-button and keyed tares are enabled PBTARE NOTARE: No tare allowed (gross mode only) KEYED PBTARE: Push-button tares enabled KEYED: Keyed tare enabled Table 3-2. Configuration Menu Parameters (Continued) 3.2.2 Format Menu Figure 3-6. Format Menu 520 Installation Manual...
  • Page 29 FORMAT Menu Parameter Choices Description Level 2 submenus PRIMAR DECPNT Specifies the decimal position, display divisions, and units used for the primary units. See DSPDIV Level 3 submenu parameter descriptions. UNITS SECNDR DECPNT Specifies the decimal position, display divisions, units, and conversion multiplier used for the DSPDIV secondary units.
  • Page 30 The default is 0.453592, which is the conversion factor for choices via changing pounds to kilograms. See Section 12.11 on page 86 for a list of multipliers. keyboard To toggle between primary and secondary units, press the UNITS key. Table 3-3. Format Menu Parameters (Continued) 520 Installation Manual...

  • Page 31: Calibration Menu

    3.2.3 Calibration Menu See Section 4.0 on page 41 for calibration procedures. Figure 3-7. Calibration Menu Configuration...
  • Page 32 Always use this parameter after WZERO and WSPAN have been set to re-capture a new zero value. See Section 4.1 on page 42 for more information about using this parameter. Table 3-4. Calibration Menu Parameters 520 Installation Manual...

  • Page 33: Serial Menu

    3.2.4 Serial Menu See Section 12.6 on page 77 for information about 520 serial data formats. Figure 3-8. Serial Menu SERIAL Menu Parameter Choices Description Level 2 submenus BAUD Configure the EDP port. See Level 3 submenu parameter descriptions. BITS...
  • Page 34 Selects number of data bits and parity of data transmitted from the printer port. 7EVEN 7ODD TERMIN CR/LF Termination character. Selects termination character for data sent from the printer port. ECHO Allows the Print Echo to be turned on or off. Table 3-5. Serial Menu Parameters (Continued) 520 Installation Manual...
  • Page 35 SERIAL Menu Parameter Choices Description EOLDLY 0000000 End-of-line delay. Sets the delay period, in 0.1-second intervals, from when a formatted line is 0-255 terminated to the beginning of the next formatted serial output. Value specified must be in the range 0-255, in tenths of a second (10 = 1 second). HANDSHK Specifies whether XON/XOFF flow control characters are used.

  • Page 36: Program Menu

    0000000 ACCESS SPLSI Z NORMAL 1-9999999 1-9999999 DISABLE BI-DI R ENABLE AUTO SETPT NEG NET KYBDLK ZERONL Y PROMPTS REGULA T REGWORD NTEP GROSS PRMPT1– SETPT DECIMAL PRMPT8 CANADA BRUTTO NODECML NONE OIML Figure 3-9. Program Menu 520 Installation Manual...
  • Page 37 PROGRM Menu Parameter Choices Description Level 2 submenus DATE DATEFMT Allows selection of date format and date separator character. See Level 3 submenu parameter DATESEP descriptions. DATESET Use the DATESET parameter or the SD EDP command to set the date. See Section 9.0 on page 51 for information about using the EDP commands.
  • Page 38 Specifies the time separator character. COMMA TIMESET nnnnnn Enter time specified by the TIMEFMT parameter. UNDER Select checkpoints by giving absolute minimum and maximum weight values in primary units. OVER CKZBAND CKPRINT Table 3-6. Program Menu Parameters (Continued) 520 Installation Manual...
  • Page 39 PROGRM Menu Parameter Choices Description PERCENT TARGET Select a target weight in primary units and enter the under/over values as a percent of the UNDER target. Specify values as a whole percent. Default is 10%. OVER CKZBAND CKPRINT ACCESS DISABLE Operator access to piece count mode.

  • Page 40: Print Format Menu

    3.2.6 Print Format Menu See Section 10.0 on page 62 for information about custom print formatting. Figure 3-10. Print Format Menu 520 Installation Manual...

  • Page 41: Setpoints Menu

    3.2.7 Setpoints Menu See Section 11.0 on page 66 for more information about configuring and using setpoints. Figure 3-11. Setpoints Menu ≠ Figure 3-12. Submenu for GROSSSP, NETSP, and RELSP Setpoints Configuration...
  • Page 42 Figure 3-13. Submenu for PAUSE, DELAY, and WAITSS Setpoints Figure 3-14. Submenu for COUNTER, AUTOJOG, COZ, INMOTON, INRANGE, –GROSS, –NET, and BATCHPR Setpoints Figure 3-15. Submenu for TIMER and CONCUR Setpoints 520 Installation Manual...
  • Page 43 SETPTS Menu Parameter Choices Description Level 2 submenus SETPT1–SETPT8 Specifies the setpoint kind. GROSSSP GROSSSP, NETSP, +RELSP, –RELSP, and %RELSP setpoint kinds can be used as NETSP either batch or continuous setpoints. +RELSP –RELSP PAUSE, DELAY, WAITSS, COUNTER, and AUTOJOG setpoint kinds can only be %RELSP used in batch sequences.

  • Page 44: Digital Input Menu

    (PROGRM menu). • GROSS, NET, PRIM, and SEC select gross, net, primary units, or secondary units display PRIM modes. • CLRTAR clears the current tare. CLRTAR • CLRACC clears the accumulator. CLRACC Table 3-8. Digital Input Menu Parameters 520 Installation Manual...

  • Page 45: Analog Output Menu

    3.2.9 Analog Output Menu The ALGOUT menu is used only if the analog output option is installed. If the analog output option is installed, configure all other indicator functions and calibrate the indicator before configuring the analog output. See Section 12.12 on page 87 for analog output calibration procedures. Figure 3-17.

  • Page 46: Version Menu

    The VERS menu is used to check the software version installed in the indicator. There are no parameters associated with the Version menu: when selected, the indicator displays the installed software version number. Figure 3-18. Version Menu 520 Installation Manual...

  • Page 47: Calibration

    Calibration The 520 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 five-point linearization •...

  • Page 48: Front Panel Calibration

    CONFIG press to exit setup mode. millivolt value at span weight, press again to calibrate and display raw A/D count, press the third time to move to the next selection. 520 Installation Manual...

  • Page 49: Edp Command Calibration

    5. Up to five linearization points can be EDP Command Calibration c a l i b r a t e d b et w e e n t h e z er o a n d sp a n To calibrate the indicator using EDP commands, the c a l i b r a t i o n v a l u e s .

  • Page 50: More About Calibration

    Place test weights on scale then click gravitational pull from one location to another and is When prompted, enter the test weight value available for the 520. To calibrate with gravity then press Enter. Repeat for additional compensation, the GRAVADJ parameter under the...

  • Page 51: Using Revolution

    The Revolution utility provides functions used to 8. At the Select Program Folder screen, choose where you want the start-up icon and uninstall support configuration of the 520 indicator. Software program placed for convenience. Click configuration, stream and ticket formatting, and Next setpoint configuration are all supported by Revolution.

  • Page 52: Configuration

    Create Configuration File previous file with that name, but with all the 3. Choose the 520 file type to give the new file parameter settings you altered in the file. the appropriate.520 file extension. 3. If the file is a new configuration file, click the 4.

  • Page 53: Counting Operations

    Counting Operations The 520 provides a piece count mode that allows the Sample Acquisition Mode Sample acquisition mode is used to select the sample indicator to serve as a counting scale. In piece count quantity and calculate the average piece weight for the mode, the indicator display shows the number of parts parts being counted.

  • Page 54: Checkweigh Mode

    Checkweigh Mode The 520 provides a checkweigh mode that can be acceptable weight range. enabled for either absolute values (ABS) or percent values (PERCENT). Range Active Digital Output Checkweighing Modes • ABSOLUTE allows you to enter actual UNDER D/O 1...
  • Page 55 Checkweighing Operations To display a checkweigh value, enter front panel setup mode. Hold the key for five seconds. To exit UNITS the bargraph mode, press the key at any prompt. If no keys are pressed for 10 seconds, the program times out and exits.

  • Page 56: Peak Hold Mode

    As above, the peak cycle is reset by pressing the ZERO key after the weight has been removed. PRINT 520 Installation Manual...

  • Page 57: Edp Commands

    EDP Commands The 520 indicator can be controlled by a personal Command Function computer or terminal connected to the indicator EDP KSEC Go to secondary units (pseudo key). port. Control is provided by a set of EDP commands that can simulate front panel key press functions, KPRINT In weighing mode, press the PRINT key.

  • Page 58: Reporting Commands

    All load cell calibration settings are lost when NOTE: the RESETCONFIGURATION command is run. VERSION Write 520 software version Write current displayed weight with units identifier. See Section 12.4 on page 75 for more information. Write one frame of stream format Table 9-2.
  • Page 59 Command Description Values PRI.DECPNT Primary units decimal position 8.888888, 88.88888, 888.8888, 8888.888, 88888.88, 888888.8, 8888888, 8888880, 8888800 PRI.DSPDIV Primary units display divisions 1D, 2D, 5D PRI.UNITS Primary units LB, KG, G, OZ, TN, T, GN, LT, NONE SEC.DECPNT Secondary units decimal position 8.888888, 88.88888, 888.8888, 8888.888, 88888.88, 888888.8, 8888888, 8888880, 8888800 SEC.DSPDIV Secondary units display divisions 1D, 2D, 5D...
  • Page 60 Keyboard lock (disable keypad) OFF, ON ZERONLY Disable all keys except ZERO OFF, ON REGULAT Regulatory compliance NONE, OIML, NTEP, CANADA REGWORD Regulatory word for GROSS GROSS, BRUTTO GRAVADJ Gravity adjustment OFF, ON PROMPT#n-8 Table 9-7. PROGRM EDP Commands 520 Installation Manual...
  • Page 61 Command Description Values CKWEIGH Checkweigh Mode OFF, ABS, PERCENT CK_OVER Absolute Over Value number CK_OVER_PCT Percent Over Value number CK_PRINT OFF, TARGET, WAITSS CK_TARGET number CK_UNDER number CK_UNDER_PCT number CK_ZBAND OFF, 1D, 2D, 5D, 10D, 20D, 50D ELEV.CAL Displays the calibrated value for elevation (view only).
  • Page 62 See Section 10.2 on page 63 for detailed information NFMT Net demand print format string CFMT Count format string SPFMT Setpoint print format string EDPFMT EDP demand print format string HDRFMT Ticket header format string STRMFMT Custom stream format string Table 9-9. PFORMT EDP Commands 520 Installation Manual...
  • Page 63 Command Description DON#nn Set digital output nn on (active) DON#0 Set all digital outputs on (active) DOFF#nn Set digital output nn off (inactive) DOFF#0 Set all digital outputs off (inactive) For commands ending with “#nn”, nn is the digital output (1-4) being set on or off. Table 9-10.

  • Page 64: Normal Mode Commands

    Transmit net weight in non-displayed units Transmit tare weight in non-displayed units Query system error conditions nnnnn See Section 12.3 on page 75 for detailed information about the XE command response format. Table 9-13. Normal Mode EDP Commands 520 Installation Manual...
  • Page 65 9.1.6 IQ310A Compatible Commands Command Description of Function Sets scale to zero. Valid only in Operate Mode. Tare in. Entered as “AT nnnnnnn <EOL>” where nnnnnnn is a 7-digit tare weight, no decimal point or leading zeros. Entering “AT <EOL>” acquires the current displayed value as a tare. “pT” in a blinking rhombus indicates a tare entered through the EDP port.

  • Page 66: Batching Control Commands

    DIGIN 3 Alarm @ – O Low order bits of byte 12 are set on to indicate active digital inputs setpoint alarm status. Bits are assigned as shown at right. Carriage Return (CR) Table 9-15. BATSTATUS Command Structure 520 Installation Manual...
  • Page 67 Translating ASCII Status Data ASCII Value Bit 3 Bit 2 Bit 1 Bit 0 Use the table at right to evaluate the ASCII character output for bytes 3 – 12 and determine which of the low order bits are set on. For example, if the Digital Output Status returned in bytes 8 –...

  • Page 68: Print Formatting

    10.1 Print Formatting Commands Table 10-1 lists commands you can use to format the 520 print formats. Commands included in the format strings must be enclosed between < and > delimiters. Any characters outside of the delimiters are printed as text on the ticket.

  • Page 69: Default Ticket Formats

    10.2 Default Ticket Formats Table 10-2 shows the default print formats for the 520 and lists the conditions under which each print format is used. The HDRFMT format is used to specify header information that can be used by the other ticket formats.

  • Page 70: Customizing Print Formats

    10.3.1 Using the EDP Port With a personal computer, terminal, or remote keyboard attached to the 520 EDP port, you can use the EDP command set to customize the print format strings. To view the current setting of a format string type the name of the print format and press .

  • Page 71: Using Revolution

    Lower-case letters and some special characters cannot be displayed on the 520 front panel (see the ASCII NOTE: character chart on page 83) and are shown as blanks. The 520 can send or receive any ASCII character; the character printed depends on the particular ASCII character set implemented for the receiving device.

  • Page 72: Setpoints

    A/D update. If the input channel weight reading matches the setpoint value, the indicator sets the corresponding digital output on. are active one at a time, in an ordered sequence. The 520 can use batch setpoints to control Batch setpoints up to eight separate batch processing steps.
  • Page 73 Kind Description Batch Continuous √ INRANGE In range. The digital output associated with this setpoint is activated when the scale is within capacity range. No value is required for this setpoint. √ –GROSS Negative gross weight. The digital output associated with this setpoint is activated when the gross weight reading is less than zero.

  • Page 74: Setpoint Menu Parameters

    Figure 11-1 shows the general structure of the SETPTS menu. See Section 3.2.7 on page 35 for a detailed description of the SETPTS menu. The eighteen setpoint kinds are described in Table 11-1 on page 66. Figure 11-1. SETPTS Menu Figure 11-2. Submenu for GROSSSP, NETSP, and RELSP Setpoints 520 Installation Manual...
  • Page 75 Figure 11-3. Submenu for PAUSE, DELAY, and WAITSS Setpoints Figure 11-4. Submenu for COUNTER, AUTOJOG, COZ, INMOTON, INRANGE, –GROSS, –NET, and BATCHPR Setpoints Figure 11-5. Submenu for TIMER and CONCUR Setpoints Setpoints...
  • Page 76 In a batch sequence with TRIP=HIGHER, the associated digital output is active until the setpoint value is reached or exceeded; with TRIP=LOWER, the output is active until the weight goes below the setpoint value. Table 11-2. Setpoint Menu Parameters 520 Installation Manual...
  • Page 77 SETPTS Menu Parameter Choices Description BANDVAL number GROSSSP, NETSP, and RELSP setpoint types with TRIP=INBAND or OUTBAND: Specifies a weight equal to half the bandwidth. The band established around the setpoint value is VALUE ±BANDVAL. HYSTER number GROSSSP, NETSP, and RELSP setpoint types: Specifies a band around the setpoint value that must be exceeded before the setpoint, once off, can trip on again.
  • Page 78 All setpoint types: Specifies a digital output associated with the setpoint. For continuous setpoints, the digital output becomes active (low) when the condition is met; for batch setpoints, the digital output is active until the setpoint condition is met. Table 11-2. Setpoint Menu Parameters (Continued) 520 Installation Manual...

  • Page 79: Batching Switch

    11.3 Batching Switch The batching switch option, PN 19369, comes as a complete unit in an FRP enclosure, with legend plate, locking stop switch (mushroom button), and a run/start/abort 3-way switch. Figure 11-7. Batching Switch Wiring Diagram To begin a batch process, turn the 3-way switch to Figure 11-6.

  • Page 80: Appendix

    12.1 Error Messages The 520 indicator provides a number of error messages. When an error occurs, the message is shown on the indicator display. Error conditions can also be checked remotely by using the XE EDP command as described in Section 12.3 on page 75.

  • Page 81: Using The Hardware Command

    The XE EDP command can be used to remotely query 12.4 Status Messages the 520 for the error conditions shown on the front panel. The XE command returns a decimal number Two EDP commands, P and ZZ, can be used to representing any existing error conditions.

  • Page 82: Tare And Zero Key Functions

    ZERO and CLEAR TARE if weight is within ZRANGE. No action if weight is outside of ZRANGE NONE zero or negative TARE ZERO CLEAR TARE positive TARE CLEAR TARE Table 12-4. TARE and ZERO Key Functions for REGULAT Parameter Settings 520 Installation Manual...

  • Page 83: Data Formats

    12.6.1 Continuous Output Serial Data Format If continuous transmission is configured for the EDP address of a 520 on the RS-485 network, that indicator or printer port (STREAM parameter on the SERIAL responds. For example, with demand outputs, or in...

  • Page 84: Custom Stream Formatting

    =00 (not used) =01 if current DSPDIV=1 =10 if current DSPDIV=2 =11 if current DSPDIV=5 Configuration =00 (not used) =01 if primary DSPDIV=1 =10 if primary DSPDIV=2 =11 if primary DSPDIV=5 Table 12-5. Custom Stream Format Identifiers 520 Installation Manual...
  • Page 85 Configuration =00 (not used) =01 if secondary DSPDIV=1 =10 if secondary DSPDIV=2 =11 if secondary DSPDIV=5 Configuration Configuration =000 if current DECPNT=8888800 =001 if current DECPNT=8888880 =010 if current DECPNT=8888888 =011 if current DECPNT=888888.8 =100 if current DECPNT=88888.88 =101 if current DECPNT=8888.888 =110 if current DECPNT=888.8888 =111 if current DECPNT=88.88888 Configuration...

  • Page 86: Stream Formatting Examples

    NOTE: Identifiers must be entered beginning with the high-order bit (bit 7–bit 0) of the Toledo status word. Status Word A contains the following fields. Equivalent 520 format identifiers are shown in parentheses. Bit 7: parity (B2) Bit 6: always 0 (B0) Bit 5: always 1 (B1) Bits 3–4: display divisions (B13)

  • Page 87: Cardinal 738 Indicator

    <units> The Cardinal uses two-character, lower-case units identifiers. The commands to set these tokens in the 520 include: STR.PRI=lb (options: kg, g, tn, t , gr, oz, or sp), STR.SEC=kg (options: lb, g, tn, t , gr, oz, or sp).

  • Page 88: Weightronix Wi 120 Indicator

    <units> The Weightronix uses two-character, lower-case units identifiers. The commands to set these tokens in the 520 include: STR.PRI=lb (options: kg, g, tn, t , gr, oz, or sp), STR.SEC=kg (options: lb, g, tn, t , gr, oz, or sp).

  • Page 89: Ascii Character Chart

    12.9 ASCII Character Chart Use the decimal values for ASCII characters listed in Tables 12-9 and 12-10 when specifying print format strings on the 520 PFORMT menu. The actual character printed depends on the character mapping used by the output device.
  • Page 90 Ä « ∩ Å » ≡ É ± æ ≥ Æ ≤ ô ⌠ ö ⌡ ò ÷ û ≈ ù ° ÿ • Ö Ü ¢ £ ¥ ƒ Table 12-10. ASCII Character Chart (Part 2) 520 Installation Manual...

  • Page 91: Digital Filtering

    • DFSENS specifies the number of consecutive 12.10 Digital Filtering scale readings that must fall outside the filter Standard digital filtering uses mathematical averaging threshold (DFTHRH) before digital filtering to eliminate the variant digital readings that the A/D is suspended. converter sends periodically because of external •...

  • Page 92: Conversion Factors For Secondary Units

    12.11 Conversion Factors for Secondary Units The 520 has the capability to mathematically convert Primary Unit x Multiplier Secondary Unit a weight into many different types of units and instantly display those results with a press of the pounds 7000.00 grains key.

  • Page 93: Analog Output Calibration

    12.13 Test Mode In addition to normal and setup modes, test mode Figure 12-5 on page 88 shows the Test Menu provides a number of diagnostic functions for the 520, structure; Figure 12-6 shows the front panel key including: functions in test mode. Note that, because the Test Menu functions are all on a single menu level, the •...
  • Page 94 Press and hold the setup switch, then press the ENTER key to clear values stored in battery-backed SRAM. PRTCFG Print configuration Press and hold ENTER key to send configuration data to the serial port. This function is equivalent to using the DUMPALL EDP command. Table 12-12. Test Menu Functions 520 Installation Manual...

  • Page 95: Specifications

    12.14 Specifications Digital Outputs 4 Outputs, current limited darlington pair with TTL pull-up, 40V withstand Power Digital Filter Two stage software selectable: 1–256, ® enhanced Rattletrap hybrid digital Line Voltages 115 or 230 VAC filtering Power Consumption 160 mA @ 115 VAC Serial Communications 80 mA @ 230 VAC 2 RS-232 ports...

  • Page 96: 520 Limited Warranty

    520 Limited Warranty Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in materials and workmanship for two years.

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