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GSE 351 Reference Manual

Checkweigher
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GSE 351
Checkweigher
Reference Manual 1.0

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  • Page 1 GSE 351 Checkweigher Reference Manual 1.0...
  • Page 2 GSE 351 Reference Manual 1.0...
  • Page 3 Information in this Reference Manual is subject to change without notice due to correction or enhancement. The information described in this manual is solely the property of GSE. No part of this manual may be reproduced or transmitted in any form or by...

  • Page 5: Table Of Contents

    Contents CHAPTER 1: Introduction ......................1 .....................1 ONVENTIONS AND YMBOLS ..........................2 ISPLAY LED Display........................2 Annunciators........................2 ..........................3 EYPAD ....................3 EIGH UNCTIONS .......................4 ECONDARY FUNCTIONS ........................5 PECIFICATIONS Performance ........................5 Electrical ........................5 Operation........................5 Communication ......................5 display ...........................5 Enclosure ........................5 Options ..........................5 Platform.........................5 CHAPTER 2: Installation ......................7 ......................7 ENCHTOP...
  • Page 6 EQUIREMENTS ......................62 THER EQUIREMENTS ....................62 EALING UDIT RAILS Physical Seal .........................63 Audit Trails........................64 OIML Audit Trail......................64 Calibration Audit Trail....................65 Setup Audit Trail......................65 Viewing Audit Trail Parameters .................65 CHAPTER 7: Model 351 Options ...................67 RS- 485 N .......................67 ETWORKING Network Connections....................68...
  • Page 7 Half-Duplex (2-wire)....................69 Full Duplex (4-wire)....................69 Both Half Duplex and Full Duplex................69 .................72 URRENT PERATION Installation ........................72 Bi-Directional.......................72 Baud..........................72 Active/Passive.......................72 Isolation .........................73 Max Voltage ........................73 Connections........................73 Cable ..........................73 Connected Devices.......................74 CHAPTER 8: Troubleshooting....................75 .......................75 RROR ESSAGES Operational Errors.......................75 Setup Mode Errors .......................76 Hardware Errors ......................77 Calibration Errors......................77 Communication Errors....................78...

  • Page 9: Chapter 1: Introduction

    CHAPTER 1: I NTRODUCTION Thank you for selecting the GSE Model 351 Checkweigher. The Model 351 continues the GSE tradition of Excellence in Weighing Technology. A properly installed and maintained Model 351 will provide many years of reliable, accurate performance.

  • Page 10: Display

    9 annunciators to show weight and status information. The – (Low Limit) = Yellow, + (High Limit) = Red and OK (Within tolerance) = Green. Also there are annunciators for 5 units of measure. Figure 1: Model 351 LED Display NNUNCIATORS Annunciators provide mode and status information. When illuminated, they...

  • Page 11: Keypad

    ZERO UNITS PRINT Figure 2: 351 Function Keys EIGH UNCTIONS The Model 351 Checkweigher has 3 primary Weigh Mode functions: [ZERO] Performs a gross zero and selects the gross mode. [PRINT] Initiates data transmission out the communication port. [UNITS] Toggles the units of measure between ‘lb’, ‘kg’, ‘oz’, ‘lb’...

  • Page 12: Secondary Functions

    Model 351 Checkweigher ECONDARY FUNCTIONS The Model 351 keys perform different functions in the weigh mode, the setup mode and the calibration mode. Secondary functions for each key will allow additional tasks to be performed. Table 1: Key Functions Key Press...

  • Page 13: Specifications

    PECIFICATIONS ERFORMANCE Full Scale (F.S.) Selectable 0 to 999,990 Resolution 20-bit A/D converter, 100,000d displayed, +/- 500,000d internal A/D Conversion 60 Hz Zero Track Off – 10d Zero Range 0-100% of F.S. span Operating Temperature -10 C to +40 C Warranty 2 year Units of Measure...

  • Page 15: Chapter 2: Installation

    Installation and servicing of the Model 351 should be performed only by authorized and qualified service personnel. For information on installing options, see Chapter 7: Model 351 Options. For NTEP and OIML details, see Chapter 6: Legal For Trade...
  • Page 16 Model 351 Checkweigher Figure 4: Model 351 with 10x10 Platform Dimensions Figure 5: Model 351 with 12x12 Platform Dimensions...

  • Page 17: Wiring

    IRING OWER ONNECTION There are two ways to power the Model 351, with a 90-250 Volt line cord (U.S. Style standard) or with a 12-36 VDC external source. The Model 351 does not include an on/off switch. In keeping with UL/CSA Safety Standards it must be installed near an easily accessible power outlet.
  • Page 18 However, much longer connections are possible if using a properly shielded, low-capacitance cable. Table 2: Serial Port Connections Description Remote Key Digital Ground Receive Request-to-Send Transmit Clear-to-Send +5 VDC Do Not Connect Digital Ground Figure 7: : GSE Serial Cable, Part Number 22-30-29752...

  • Page 19: Remote Key Connection

    A communication cable (P/N: 22-30-29752) may be purchased from EMOTE ONNECTION A remote key may be connected to the Model 351 communication port to provide remote activation of print or zero functions. The connection for the remote key input is between pin 1 and pin 2. A two- conductor shielded cable between 28 and 20 AWG is recommended.

  • Page 20: Load Cell Connection

    Model 351 Checkweigher OAD CELL CONNECTION The Model 351 will come equipped with either an aluminum or stainless steel load cell. The load cells used have 7 wires. + EX - EX + SIG - SIG + SENSE - SENSE...

  • Page 21: Chapter 3: Getting Started

    [PRINT] + [UNITS]. Below is a table with the different checkweighing methods available. The operation of the Model 351 depends on the method chosen. Refer to Table 3 for examples of the available methods.

  • Page 22: Entering A Target Value

    Model 351 Checkweigher NTERING A ARGET ALUE Entering a target depends on the checkweighing method chosen and the access setting. Refer to Table 4 for a comparison of the available methods and access settings. Table 4: Entering Targets and Tolerances...
  • Page 23 Chapter 3: Getting Started Access Setting Weigh Mode Checkweighing (P5020) Method (P5100) Disbl – This choice When the [PRINT] + [UNITS] keys assures the absolute are pressed the TargeL and targH values cannot be values are shown for one second each changed from the but not changeable weigh mode.
  • Page 24 Model 351 Checkweigher EXAMPLE 2: enter a target with an acceptable weight on the scale. The access setting is set to targ (Target). To set a target of 2.10 lbs with a known weight: Press [PRINT] + [UNITS] with the weight on the scale Targ1 ~ 5.00...

  • Page 25: Entering Tolerances

    Chapter 3: Getting Started 12. Press the [PRINT] + [UNITS] to accept the high target value 0.00 NTERING OLERANCES Tolerances are the bases for the acceptance window (OK). Checkb (deviation) and Checkp (percentage) use tolerances and the target to determine the accepted target. Refer to Table 3 for more details. Check A operates differently by using two values and anything in between those values is acceptable.

  • Page 26: Status Indication

    Model 351 Checkweigher TATUS NDICATION The status annunciators are located above the weight display. This allows ease in checkweighing by simply looking at a status light. Only one light will illuminate at a time. The status annunicators can be turned off (refer to page 37).

  • Page 27: Printing Out A Ticket

    Chapter 3: Getting Started EXAMPLE 3: To sample using variable counts (36 pieces): From the Quantity Mode, press [UNITS]. The scale prompts to add 10 pieces. Add ~ 10 Key in 36, then press [PRINT] + [UNITS] to sample as 36 pieces and display the current quantity.

  • Page 29: Chapter 4: Configuration

    CHAPTER 4: C ONFIGURATION ETUP To prevent accidental changes to the indicator setup, a sequence of keystrokes is used to gain access to the setup mode. To access the setup mode: From the weigh mode press [ZERO] + [PRINT] + [UNITS] Setup ~ Enter Code The following keystrokes must be made within five seconds or the indicator will return to the weigh mode.
  • Page 30 Model 351 Checkweigher To advance to the next parameter: Press [ZERO] P111.09 ~ 1Grad ~ 0.01 Press [ZERO] P112.05 ~ Ztrac ~ 0.5 d Continue pressing [ZERO] to advance through all setup parameters. To access the previous parameter: Press [PRINT] Press [ZERO] P111.09 ~ 1Grad ~ 0.01...

  • Page 31: Selection Parameters

    Chapter 4: Configuration To exit the setup mode and save changes: Press [ZERO] + [PRINT] + [UNITS] to begin exiting the setup mode. Enter ~ =CAL! Press [ZERO] to bypass the calibration mode. Enter ~ =Stor Press [PRINT] + [UNITS] to save setup changes. Enter ~ =End Press [PRINT] + [UNITS] to complete exit.

  • Page 32: Key-In Parameters

    Model 351 Checkweigher P 200.00 Indicates Parameter Parameter Number Choice Number For example, parameter 200 is a selection parameter that holds the baud rate for the serial. This is a selection parameter because a choice number between 00 and 06 must be used. Each choice number corresponds to a different baud rate.

  • Page 33: Parameter Map

    Chapter 4: Configuration Press 5101 [ZERO]. P5101.— — ~ TARG= ~ 5.00 Press [PRINT] three times to select the first digit. Press [UNITS] to advance to the next digit. Press [PRINT] one time to select the next digit. Press [PRINT] + [UNITS] to accept and enter the value. P5101.—...
  • Page 34 Model 351 Checkweigher Parameter Display Default Valid Range/ Parameter Page Number Name Value Choices Description P151.01 Unbut Enable Enable / Disable Units Button (Toggle) P152.00 Enable Enable / Disable Pounds (Toggle) indication P154.00 Enable Enable / Disable Ounces (Toggle) indication P155.00...
  • Page 35 Chapter 4: Configuration Parameter Display Default Valid Range/ Parameter Page Number Name Value Choices Description P502.01 disbl Disable Enable / Disable Time/Date t-dAt (Toggle) Function P504.00 Style U.S.A U.S.A or Time/Date International Function P800.00 R-But None None – Zero Remote (3 Selections) Button Function...
  • Page 36 Model 351 Checkweigher accordingly. Once the scale settles within the stability aperture, the indicator will wait one second before the indicator is considered stable. Print operations configured as motion delayed (P114) will not send the specified data until the weight reflects a stable reading as designated by this setting.
  • Page 37 Chapter 4: Configuration P154 Ounces (Toggle) This parameter will allow the ‘oz’ units to be disabled individually. It is still possible to have ‘oz’ as default calibration units. P155 Grams (Toggle) This parameter will allow the ‘g’ units to be disabled individually. It is still possible to have ‘g’...
  • Page 38 Model 351 Checkweigher P212 Send Stability (Toggle) Enabling Send Stability will delay any transmissions until a no-motion condition exists. P213 Transmit Selection (Selection) Select desired print output (0 – 21). The transmission will be initiated by the selected print operation (P210) and / or the Remote Key selection (P800).
  • Page 39 Chapter 4: Configuration Fixed Transmit #7 UNIT DEVIATION GROSS WEIGHT CR LF Leading Spaces with lb, kg Leading Spaces ‘+’ for positive data oz, g 9 10 11 12 13 14 15 16 17 18 19 21 22 Example: U -0.52 0.48 lb Fixed Transmit # 8 UNIT...
  • Page 40 Model 351 Checkweigher Fixed Transmit # 11 CR LF TIME DATE HH:MM am/pm MM/DD/YY CR LF UNIT G r o s s GROSS WEIGHT lb, kg EADING PACES oz, g 7 8 9 10 11 12 13 14 15 16 17 18 19 Example: 11:40 pm 01/01/70 0.41 lb Gross...
  • Page 41 Chapter 4: Configuration Fixed Transmit # 14 TIME DATE CR LF HH:MM am/pm MM/DD/YY UNIT GROSS WEIGHT G r o s s CR LF lb, kg EADING PACES oz, g DEVIATION UNIT D e v CR LF lb, kg EADING PACES WITH oz, g ‘+’...
  • Page 42 Model 351 Checkweigher Fixed Transmit # 19 HIGH LIMIT LOW LIMIT Leading Zeros Leading Zeros 9 10 11 12 13 14 15 16 17 18 UNIT TARGET QUANTITY CR LF lb, kg Leading Zeros Leading Zeros oz, g 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Example: 0.20,...
  • Page 43 Chapter 4: Configuration When printing with ‘pounds & ounces’ as the current units, the gross weight is transmitted in two parts, pounds followed by ounces. Each weight followed by a space and two units characters. Polarity will apply to both the pounds field and ounces field in the same manner as it applies to the other single units of measure.
  • Page 44 Model 351 Checkweigher Parameter Choice Description Setting P420.00 Shuts off the display. P420.01 Normal display operation. Shuts off the display when weight has stabilized within 6 divisions for 5 minutes. Pressing [ON] or P420.02 Auto changing weight more than 6 divisions will re-enable the display.

  • Page 45: Custom Transmit Setup

    USTOM RANSMIT ETUP The serial output of the Model 351 can be configured for a custom application such as a remote display format, a customized computer program format, or a customized ticket format. The custom transmit must be designed in a computer-transmittable ASCII text file. The custom transmit can only be loaded into the indicator through the serial port.

  • Page 46: Parameters

    Wordpad, etc.), but you must save the custom transmit as a text (.txt) file. Instructions can also be sent keystroke by keystroke from a communications program. To do so, ignore the 351 display and enter the characters in the correct order. Figure 11 shows a custom transmit written in Wordpad.

  • Page 47: Accessing Setup And Clearing Existing Custom Transmit

    Chapter 4: Configuration CCESSING ETUP AND LEARING XISTING USTOM RANSMIT Every custom transmit file must start with: 1999%s%s%z%p%u%e %c%e This accesses the Setup Mode at the end of the existing transmit and then clears the transmit so that a new one may be entered. ASCII T NTERING ASCII text is defined as printable characters, including alpha-numerics as...
  • Page 48 Model 351 Checkweigher Table 6: ASCII/HEXADECIMAL CONVERSION CHART CHAR “ < > & 064 5A ‘ 065 5B 066 5C 067 5D 068 5E ‘ 098 7C...

  • Page 49: Parameter Selection Numbers

    Chapter 4: Configuration ARAMETER ELECTION UMBERS The following sequence enters parameters into a custom transmit: %e , the parameter number, %e%e , a format code, and then %e%e with no intervening spaces. %e 0 %e%e 0 %e%e Initiates Parameter Enters Parameter Format Enters Format Parameter...
  • Page 50 Model 351 Checkweigher Table 8: Format Codes Choice Sample Print Result Description Weight Parameter Format Codes Fixed width (8 characters), right “ 27.49 lb Gross” justified, left spaces filled. Fixed width (8 characters), right “000027.49 lb Gross” justified, left zeroes filled.

  • Page 51: Exiting Setup Mode And Saving Changes

    Chapter 4: Configuration XITING ETUP AVING HANGES Each custom transmit file must end with: ö%c%e%e where ö = <ALT> + 0246 (on numeric keypad) This exits the Setup Mode, bypasses the calibration procedure and saves the indicator configuration file. PERATION The time and date feature is stored as volatile (time/date setting will be lost when the unit power is reset).
  • Page 52 Model 351 Checkweigher 7.25. Press [PRINT] to scroll through the numbers and enter the year. 7.25.0 Press [UNITS] to move the cursor over one space. 7.25.0. Press [PRINT] until 2 is showing. 7.25.02 10. Press [PRINT] + [UNITS] twice to accept the entry. If at anything the entry is not acceptable simply press [PRINT] + [UNITS] to start over.

  • Page 53: Remote Key Operation

    EMOTE PERATION The Model 351 has two selectable remote key operations to choose from; Print and Zero. Only one of these operations may be assigned to the remote key input. Table 9 describes the available remote key operations. See Remote Key Connection on page 11 for information on connecting a remote key input device.

  • Page 54: Serial

    Model 351 Checkweigher EMOTE ERIAL PERATION Table 10: Remote Serial Operations ASCII Command Description Initiates print function. Print Print restrictions (P200 – P212) will be adhered to. Performs a parameter or mode select Select operation. Toggles between displayed units of Units measure.

  • Page 55: Example #1

    Chapter 4: Configuration The Display Capture Utility must have NTEP disabled (P440) in order to function. Example #1 The scale is in the weigh mode with the gross weight displayed (for example, 15.00). Input: The extended ASCII character represented by decimal 149 (hex: 95h) is received through the comm port.

  • Page 56: Network

    Receiver disabled when transmitting (if installed) ETUP The Model 351 supports address recognition, which allows a single master device to communicate with up to 250 distinct slave controllers P250 must be enabled in order to gain access to P251. Enabling P250 by itself only...

  • Page 57: Operation

    If the received address character does not match P251 then all of the subsequent data is ignored until the next start of packet character,<STX>, is received. An address of 0 at P251 will cause the Model 351 to process all received data. ETWORK...

  • Page 59: Chapter 5: Calibration

    Press [PRINT] + [UNITS] First ~ Zero? ~ -0.26 ALIBRATION Fast Calibration allows calibration of the Model 351 scale system without accessing the Setup Mode. To access Fast Calibration from the Weigh Mode: From the Weigh Mode, press [ZERO] + [PRINT] + [UNITS].

  • Page 60: Performing Calibration

    ALIBRATION ETHOD AND STABLISH The Model 351 provides five methods for obtaining a zero (no load) calibration reference, First Zero, Last Zero, False Zero, Only Zero, and Cal Reset. Press [UNITS] to scroll through the five selections. Press [PRINT] + [UNITS] to select the displayed calibration method and establish zero.

  • Page 61: Last Zero

    Chapter 5: Calibration Enter 20. Press [PRINT] + [UNITS] to establish span. 20.00 Pause for motion delay. Cal ~ Good? ~ 20.00 10. Press [PRINT] + [UNITS] to accept calibration. Enter ~ =Stor 11. Press [PRINT] + [UNITS] to save calibration. Enter ~ =End 12.

  • Page 62: False Zero

    14. Remove the calibration weight. ALSE False Zero calibrates the Model 351 without removing the current gross weight. Typically used in tank weighing applications where it may be both time consuming and costly to completely empty the tank. This operation is achieved by establishing a false (temporary zero) zero reference.

  • Page 63: Only Zero

    Chapter 5: Calibration Fast ~ Cal First ~ Zero? ~ 50.75 Press [UNITS] [UNITS]. False ~ Zero? ~50.75 Press [PRINT] + [UNITS] to establish false (temporary) zero. Units ~ =lb Pause to display calibration units. Enter ~ Load? ~ 00. Place a 2500lb test weight on scale.

  • Page 64: Reset Calibration

    After performing a calibration reset, a complete recalibration is required. The effects of a calibration reset do not take effect until the Model 351 is recalibrated and calibration information has been saved. If Code 02 (under-load) or Code 03 (over-load) is displayed during calibration, press [CLR] to perform a calibration reset.
  • Page 65 Chapter 5: Calibration Remove any load on the scale. First ~ Zero? ~ xx.xx Press [PRINT] + [UNITS] to establish zero. Enter ~ Load? ~ 0.00 Place a 50lb test weight on scale. Code03 Press [ZERO]. First ~ Zero? ~ -0.26 Remove any load on the scale.

  • Page 66: Establishinga Span

    Model 351 Checkweigher STABLISHING Once a zero reference has been established, the Model 351 displays Enter ~ Load and awaits the entry of a span (test load) value. This value may be entered before or after the test load has been applied.
  • Page 67 Chapter 5: Calibration Press[PRINT] + [UNITS] to exit calibration. 50.00 To exit without saving calibration information: Press [PRINT] + [UNITS] [ 8 8 ] to accept calibration. Enter ~ =Stor Press [ZERO]. Enter ~ =Undo Press[PRINT] + [UNITS]. Enter ~ =End Press [PRINT] + [UNITS] to exit calibration.

  • Page 69: Chapter 6: Legal For Trade

    Institute of Standards and Technology (NIST). For more information, call (301) 975-3058, or visit http://www.nist.gov. The Model 351 NTEP Certificate of Conformance is Pending. In order to configure the Model 351 to comply with NTEP requirements, parameter P440-rstrc (restrict) must be enabled. This ensures the following: •...

  • Page 70: Oiml Requirements

    A list of regulation publications may be obtained from the Bureau International de Métrologie Légale (BIML) in Paris, France. In order to configure the Model 351 to comply with OIML requirements, parameter P410-Euro must be enabled. Doing so will ensure the following: •...

  • Page 71: Physical Seal

    Chapter 6: Legal For Trade The Model 351 has two types of sealing provisions, a physical seal and a three event audit trail counter. Check with your local weights and measures authority to determine your requirements. HYSICAL The most common sealing method is a lead-wire seal. The Model 351 provides an easy means of applying this type of seal as shown in Figure 13.

  • Page 72: Audit Trails

    RAILS Three separate incrementing, non-resetable audit trail parameters are used by the Model 351 to indicate changes to various parameters, P60201 – OIML, P60203 – Calibration , and P60204 – Setup. An audit trail counter will increment only once upon exiting the Setup Mode and saving changes regardless of how many settings were changed.

  • Page 73: Calibration Audit Trail

    Chapter 6: Legal For Trade ALIBRATION UDIT RAIL Any changes to the existing calibration will increment the Calibration (CAL) audit trail at P60203. ETUP UDIT RAIL Changes to any of the Setup Mode parameters will increment the setup audit trail at P60203. IEWING UDIT RAIL...

  • Page 75: Chapter 7: Model 351 Options

    7: M 351 O HAPTER ODEL PTIONS The capabilities of the Model 351 can be expanded with the use of one or more option kits. This chapter provides installation procedures for these options. RS- 485 N ETWORKING The Model 351 supports address recognition for multi-drop communications.

  • Page 76: Network Connections

    Model 351 Checkweigher Reinstall the back cover. Tighten the eight screws securely to create a good seal. Figure 14: RS-485 Installation ETWORK ONNECTIONS Apply the supplied label over the appropriate COM PORT pin designations. Apply the label marked M350 SS to the main board (J6). Position the label so the REM (remote) on the main board is covered with the REM (remote) of the supplied label.

  • Page 77: Half-Duplex (2-Wire)

    Chapter 7: Model 351 Options UPLEX WIRE Installing jumpers 1, 2 and 4 on the RS-485 option board electrically connects pin RX B(+) to pin TX B(+), and pin RX A(-) to pin TX A(-) on the option board. This effectively provides two + and two - pin connections, enabling easy connection of network lines in parallel from device to device without having to position two wires into the same lever socket.
  • Page 78 Model 351 Checkweigher Figure 15: RS-485 Half Duplex...
  • Page 79 Chapter 7: Model 351 Options Figure 16: RS - 485 Full Duplex...

  • Page 80: A Current Loop Operation

    Model 351 Checkweigher URRENT PERATION Description: This option will convert the comm port of the indicator to an 20 mA current loop instead of an RS-232. This is a digital communication signal and should not be confused with a 4 to 20-mA (or 0-20 mA) which are analog output signals.

  • Page 81: Isolation

    Chapter 7: Model 351 Options SOLATION The input and output are electrically isolated from the main board as well as earth ground and each other, for both passive and active modes of operation. Isolation is a minimum of 1000v. OLTAGE Active mode Tx current loop provides a driving voltage of 12v.

  • Page 82: Connected Devices

    Model 351 Checkweigher Table 14: Label Terminology TRANSMITTER CONNECTIONS Transmitter Transmit current Transmit current input, Output input, Active Passive TX OUT TX ACTIV TX PASS RECEIVER CONNECTIONS Receiver current output Receiver current input RX PASS RX IN ONNECTED EVICES While 20 mA current loops can allow for more than one transmitter and/or receiver, the indicator and/or option board do not include any address recognition or collision avoidance and/or detection to promote this usage.

  • Page 83: Chapter 8: Troubleshooting

    8: T HAPTER ROUBLESHOOTING This chapter contains error messages and information parameters, as well as information on setup parameter selections and A/D Calibration. RROR ESSAGES The M351 utilizes the following types of error messages: Operational Errors, Setup Mode Errors, Hardware Errors, Calibration Errors, Communication Errors, and Miscellaneous Errors.

  • Page 84: Setup Mode Errors

    Model 351 Checkweigher Out of ~ Range Attempted to enter a value beyond the allowable range. Targ3 ~ Error A conflict occurred with a Target value entry (example: target entry is less than Hi or Lo limit). Need APS A setpoint start is initiated and the setpoint is based on quantity and no piece weight has been established (start will not occur).

  • Page 85: Hardware Errors

    Chapter 8: Troubleshooting ARDWARE RRORS Code00 An EPROM problem detected during power-up (U2). A-D ~ Bad! Problem with A/D chip detected. Disconnect any Or Code17 options installed and re-power the unit. Options are connected to the same serial lines as the A/D so they may prevent it from working properly.

  • Page 86: Communication Errors

    Model 351 Checkweigher Entry ~ Error An invalid entry was made. Bit-Er The stop bit of a received character did not occur when expected. Verify that protocol (P200 – P204) matches that of the connected device. TrHold Data transmission is inhibited due to a deasserted handshake.

  • Page 87: Information Mode Parameters

    OIML (European) audit trail number (see 60201 Euro ~ 00000 OIML Audit Trail on page 64). 60202 i sn ~ 00000 Model 351 serial number. Audit ~ Trail Calibration audit trail number (see 60203 CAL. ~ 00000 Calibration Audit Trail on page 65).
  • Page 88 Model 351 Checkweigher Audit ~ Trail Setup audit trail number (see Setup Audit 60204 Setup ~ 00000 Trail on page 65). Load ~ Cell 61100 Current mV/V output of the load cell. 0.00000 Cal ~ Factr 61101 Calibration factor for the load cell.

  • Page 89: A/D Calibration Procedure

    A/D C ALIBRATION ROCEDURE The Model 351 Analog-to-Digital Converter (A/D) is calibrated at the factory to ensure a stable, linear response to the load cell signal. This calibration procedure calculates critical values that are permanently stored in parameters P61110 – P61121. The A/D calibration should not be confused with the standard weight calibration.
  • Page 91 Your GSE Distributor is: 39-10-39102...

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