Dickey-John GAC 2500-AGRI Operator's Manual
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Dickey-John GAC 2500-AGRI Operator's Manual

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OPERATOR'S MANUAL
Safety Notices/Disclaimer .................................................................................. 1
Liability ..................................................................................................................2
Introduction ......................................................................................................... 3
Accessories ....................................................................................................................... 3
Unit Overview .................................................................................................................... 3
Features ............................................................................................................................ 4
Specifications .................................................................................................................... 4
Declaration of Conformity ................................................................................................. 4
External Communication Connections .............................................................................. 5
Printer ............................................................................................................................... 6
Unpacking the Instrument .................................................................................. 7
Unlock Shipping Brackets ................................................................................................. 7
Instrument Placement ..................................................................................................... 10
Leveling Instrument.......................................................................................................................... 10
Installation ......................................................................................................... 11
Connecting AC Power ..................................................................................................... 11
Grain Drawer ................................................................................................................... 12
Optional Bottomless Grain Drawer ................................................................................................. 12
Navigation .......................................................................................................... 13
Using External Devices ................................................................................................... 13
Touch Screen Button Functions ...................................................................................... 14
Home .............................................................................................................................................. 14
Power Off ....................................................................................................................................... 14
Initiate ............................................................................................................................................. 14
Print ................................................................................................................................................ 14
Back ............................................................................................................................................... 14
Abort ............................................................................................................................................... 14
Enter ............................................................................................................................................... 14
USB ................................................................................................................................................ 14
User ................................................................................................................................................ 14
Instrument Information ................................................................................................................... 15
LCD Display Touch Screen Calibration .......................................................................................... 15
Keypad ........................................................................................................................................... 15
Clean .............................................................................................................................................. 15
Password Restrictions ..................................................................................... 17
Setup .................................................................................................................. 19
Product ............................................................................................................................ 20
Create Product ............................................................................................................................... 21
Modify a Product's Bias and Slope ................................................................................................ 21
Delete Product ............................................................................................................................... 23
Load New Product .......................................................................................................... 24
Administrative Settings ................................................................................................... 26
To Change a Known User Name/Password .................................................................................. 26
GAC® 2500 AGRI
11001-1626B-201405
/
I

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Summary of Contents for Dickey-John GAC 2500-AGRI

  • Page 1: Table Of Contents

    OPERATOR’S MANUAL Safety Notices/Disclaimer .................. 1 Liability ........................2 Introduction ......................3 Accessories ........................3 Unit Overview ........................3 Features ..........................4 Specifications ........................4 Declaration of Conformity ....................4 External Communication Connections ................5 Printer ..........................6 Unpacking the Instrument .................. 7 Unlock Shipping Brackets ....................
  • Page 2 OPERATOR’S MANUAL Setup continued ....................27 System Setup ......................... 27 Printer Setup ........................... 27 Adding a Header and Footer to Ticket .................... 29 Language and Keyboard Settings .................. 30 Locale Setting ......................... 31 Sample Setup ......................... 32 Setup continued ....................32 Result Setup ........................
  • Page 3 OPERATOR’S MANUAL Maintenance ...................... 67 External Cleaning ......................67 Internal Cleaning ......................68 Daily Clean Method ........................68 Extensive Cleaning Method ......................70 Cleaning the Temperature Sensor Probe ..................73 Troubleshooting ....................79 Warranty ......................83 GAC® 2500 AGRI 11001-1626B-201405...
  • Page 4 OPERATOR’S MANUAL IV / GAC® 2500 AGRI 11001-1626B-201405...

  • Page 5: Safety Notices/Disclaimer

    DISCLAIMER DICKEY-john reserves the right to make engineering refinements or procedural changes that may not be reflected in this manual. Material included in this manual is for informational purposes and is subject to change without notice.

  • Page 6: Liability

    OPERATOR’S MANUAL LIABILITY ® DICKEY-john designed the GAC 2500 to measure oilseed and grain moisture content. We rigorously test and calibrate each instrument before it leaves the factory. Use of the instrument in the field, however, is subject to environmental and operating conditions beyond our control. As a result, we...

  • Page 7: Introduction

    OPERATOR’S MANUAL INTRODUCTION ® The DICKEY-john Grain Analysis Computer GAC 2500-AGRI quickly tests grain and automatically calculates moisture content, temperature, and test weight (bulk density) of the sample. The unit prompts for sample loading, tests the sample, and displays the results.

  • Page 8: Features

    OPERATOR’S MANUAL FEATURES • Color touch screen display guides users through testing and setup • Easy-to-use user interface • Fast, accurate grain analysis • One core calibration for all grains • Stores up to 8 grain calibrations • Alpha/numeric sample identification with the ability to add an optional extended keyboard or bar code reader via USB •...

  • Page 9: External Communication Connections

    OPERATOR’S MANUAL EMC conformity to EN 61326-1:2006 (Electrical Equipment for Measurement, Control, and Laboratory use) as follows: Immunity • Radiated RF field EN 61000-4-3 (2002) • Conducted RF voltage EN 61000-4-6 (1996) + A1 (2001) • Fast transient/burst EN 61000-4-4 (2004) •...

  • Page 10: Printer

    OPERATOR’S MANUAL PRINTER An optional printer that is RS232 compatible or a USB printer that supports ® Printer Control Language (PCL) can connect to the GAC 2500-AGRI to print test data results to a ticket. The ticket can be setup to include the facility name and address, product, date and time, sample ID, customer ID, grain calibration date, percent moisture, grain temperature, test weight, and errors.

  • Page 11: Unpacking The Instrument

    OPERATOR’S MANUAL UNPACKING THE INSTRUMENT UNLOCK SHIPPING BRACKETS ® The GAC 2500 instrument contains (2) shipping brackets that secure the measurement cell during shipping. After unpacking the instrument, the shipping brackets must be unlocked and placed in the operating location before proceeding to setup and operation.
  • Page 12 OPERATOR’S MANUAL 5. Loosen hex bolt from the shipping locked location. Figure 6 Loosen Hex Bolt from Bracket 6. Remove hex bolt and set aside. Figure 7 Remove Hex Bolt 7. Press down on the bracket to release. Figure 8 Press Down on Bracket UNPACKING THE INSTRUMENT GAC®...
  • Page 13 OPERATOR’S MANUAL 8. Slide bracket forward and align with operating location. Figure 9 Slide Bracket Forward 9. Insert hex bolt into operating location hole and securely tighten using the Allen wrench. Figure 10 Insert Hex Bolt and Tighten 10. Perform the same procedure to the other bracket. 11.

  • Page 14: Instrument Placement

    OPERATOR’S MANUAL INSTRUMENT PLACEMENT Place the instrument in a clean environment that is protected from rapid changes in ambient temperature and vibration. Avoid a hazardous (classified) location as defined in Article 500 of the NFPA Handbook of the National Electrical Code. •...

  • Page 15: Installation

    Unit Dimensions during transit. Save all packing TOP VIEW materials until inspection is 16.2” complete. If damage is found, file a claim with the carrier immediately and notify your DICKEY-john sales representative. 10.5” 18.6” 13.9” 16.9” SIDE VIEW 18.6” FRONT VIEW CONNECTING AC POWER 1.

  • Page 16: Grain Drawer

    OPERATOR’S MANUAL GRAIN DRAWER The unit is equipped with a standard grain drawer with handle. An optional bottomless grain drawer is available for purchase from DICKEY-john. OPTIONAL BOTTOMLESS GRAIN DRAWER Part Number: DRAWEROPGAC2500 A bottomless grain drawer is used with a flow-through work counter that allows the tested grain samples to fall through to a larger container below.

  • Page 17: Navigation

    OPERATOR’S MANUAL NAVIGATION ® The user interacts with the GAC 2500-AGRI via the LCD touch screen display. Screen interaction by finger touch or using a dull, pointed object, such as a stylus or pen is recommended. Refer to the Maintenance section for how to properly clean display. Do not use any sharp objects on the display.

  • Page 18: Touch Screen Button Functions

    OPERATOR’S MANUAL TOUCH SCREEN BUTTON FUNCTIONS HOME Home button is available on most screens and, when pressed, returns to the Main Menu screen. POWER OFF Power Off button turns the system off from the touch screen display. The system must be turned on using the On/Off button located on the front panel but can be turned off from either the screen display or the On/Off button.

  • Page 19: Instrument Information

    OPERATOR’S MANUAL INSTRUMENT INFORMATION Instrument Information button appears on the Main Menu screen providing details regarding unit service date, serial number, and software version. Typically used for troubleshooting purposes. LCD DISPLAY TOUCH SCREEN CALIBRATION Display Touch Screen Calibration button re-calibrates the display when screen responsiveness does not occur effectively to a finger touch or stylus.
  • Page 20 OPERATOR’S MANUAL NAVIGATION GAC® 2500 AGRI 11001-1626B-201405...

  • Page 21: Password Restrictions

    OPERATOR’S MANUAL PASSWORD RESTRICTIONS Setting an Admin user name and password to restrict system settings to be controlled by an administrator are optional. The unit is shipped with an Admin user name and password setting of “GUEST”. Keeping the Admin user name and password as “GUEST” retains the unit in open access mode allowing any user to enter System Settings and modify unit settings.
  • Page 22 OPERATOR’S MANUAL Figure 15 Password Screen GAC2500-AGRI Enter Admin Username Enter Admin Username Please Log In GUEST Enter Admin Username Enter GUEST Password GAC2500-AGRI Setup Setup Product Admin Settings System Diagnostics GAC2500-AGRI Enter New Password Enter Admin Username Enter Admin FRED Username FRED PASSWORD...

  • Page 23: Setup

    OPERATOR’S MANUAL SETUP Setup establishes basic unit operating parameters and allows customization of the user interface by: • Editing an existing product and loading new products (Product button) • Setting administrative levels (Admin Settings button) • Setting system parameters for external devices, language/locale preferences, time/date, sample result output, unit measurement, sample/customer ID’s, delete records, and printing formats (System button)

  • Page 24: Product

    OPERATOR’S MANUAL PRODUCT The Product screen allows editing an existing product to create a new product, loading new products into the instrument via USB, and the deletion of products. To Select a Product: 1. At the Product Setup screen, press the Edit Existing Product button. 2.

  • Page 25: Create Product

    OPERATOR’S MANUAL CREATE PRODUCT A new product can be created by copying a similar product’s parameters. Creating a new product name and Issue ID prevents an existing product’s parameters from being overwritten. The instrument holds 8 calibrations. A stored calibration must be removed if creating a new product will exceed the maximum 8 calibrations allowed.
  • Page 26 OPERATOR’S MANUAL 2. At the Edit Product screen, press the keypad icon to modify a product’s bias and/or slope parameters. 3. When finished, press the Enter button. 4. Confirm product replacement by pressing the Replace button at the Product Already Exists screen. –...

  • Page 27: Delete Product

    OPERATOR’S MANUAL DELETE PRODUCT A product and its calibrations can be deleted so that it does not appear on the active user screens. A product and its history is stored in the unit’s database. Deleting a Product: 1. At the View Product Setup screen, press the Delete button. 2.

  • Page 28: Load New Product

    5. If a product calibration already exists on the instrument, accept the new calibration by pressing the Replace button or the Skip button to revert to the existing product. Figure 21 NOTE: Contact DICKEY-john Technical Support at 1-800-637-3302 for Load New Product Screen assistance with obtaining...
  • Page 29 1. Insert the USB memory device to the unit’s USB port on front panel of NOTE: Product calibrations are available for download at unit. DICKEY-john’s website. 2. At the Product Setup screen, press the Load New Products button to www.dickey-john.com/products/ load all products from the selected directory of the memory device or...

  • Page 30: Administrative Settings

    Enter Admin Username Product Enter Admin JOHN Username Admin Settings New Password JOHN PASSWORD System JOHN PASSWORD Re- Enter Password Diagnostics Contact DICKEY-john Tech Support or a local representative to reset instrument to open access mode. SETUP GAC® 2500 AGRI 11001-1626B-201405...

  • Page 31: Setup Continued

    OPERATOR’S MANUAL SYSTEM SETUP System Setup allows customization of the unit’s functionality and print settings: • Printer/scale setup • Language selection • Locale selection • Time and date setup • Test result settings (automatic, manual return) • Exporting data format (CSV, Excel) •...
  • Page 32 OPERATOR’S MANUAL 8. Select the output format. NOTE: When printing to a database using an RS232 connection – PRN20 - Standard 20 column printer output and CSV printer output format, – PRN21 - Special 20 column printer output a line feed of 1 is required for a –...

  • Page 33: Adding A Header And Footer To Ticket

    OPERATOR’S MANUAL ADDING A HEADER AND FOOTER TO TICKET Header and Footer text can be added to print on a print ticket. Owner Data NOTE: An external keyboard, barcode scanner, or mouse can be used text can be selected as the default or customized text can be entered. to enter header and footer To Enter a Header/Footer: information.

  • Page 34: Language And Keyboard Settings

    OPERATOR’S MANUAL LANGUAGE AND KEYBOARD SETTINGS Language default is English (US). Two keyboard styles are available: Qwerty (default) and Standard Figure 26 Qwerty and Standard Keyboard Styles GAC2500-AGRI Enter Sample Name GAC2500-AGRI Enter Sample Name Space To Select a Keyboard Type: 1.

  • Page 35: Locale Setting

    OPERATOR’S MANUAL LOCALE SETTING Locale allows selection of a specific region/area by language that will use the calibrations relevant for that region. The active locale setting appears in the header on the Product Selection screen when analyzing grain. Locale default is United States (US). Available Locales: •...

  • Page 36: Sample Setup

    OPERATOR’S MANUAL SAMPLE SETUP A Sample ID, Customer ID, User Name (Login) can be enabled so that a grain sample is identified and saved with this information each time a test is performed. 1. At the System Setup screen, press the the More button until the Sample Setup button displays.
  • Page 37 OPERATOR’S MANUAL Figure 29 Sample Setup Screen GAC2500-AGRI System Setup System Setup Sample Setup Result Setup Export Data Format More GAC2500-UGMA GAC2500-AGRI Sampling Setup Sampling Setup When Running Samples: : Prompt for Sample ID A Sample ID is Required Auto Sequence Sample ID A Customer ID is Required User Login Required SETUP...

  • Page 38: Result Setup

    OPERATOR’S MANUAL RESULT SETUP After performing a grain analysis, the unit can be set to automatically advance back to the Sample ID screen from the Analysis Results screen or manually return to this screen with a button press. The unit default is set to manual return.
  • Page 39 OPERATOR’S MANUAL Figure 30 Result Setup Screen GAC2500-AGRI System Setup System Setup Sample Setup Result Setup Export Data Format More GAC2500-AGRI Sample Return Setup Sample Return Setup Upon Sample Result: Manual Return Automatic Return in seconds Enter number between 4 – 20 seconds Require drawer to be emptied after each sample Bottomless Drawer in Use Display Test Weight...

  • Page 40: Export Data Format

    OPERATOR’S MANUAL EXPORT DATA FORMAT Data can be saved for output to a computer in an Excel or CSV format. The unit default is CSV. 1. At the System Setup screen, press the the More button until the Export Format button appears. 2.

  • Page 41: Time

    OPERATOR’S MANUAL TIME 1. At the System Setup screen, press the Time button. NOTE: The date can be changed to US or UK format at the Units 2. To select a date, press the Date drop down arrow to display calendar. screen.

  • Page 42: Units

    OPERATOR’S MANUAL UNITS The Units screen allows selection of: • Date format (US or Euro) • Temperature (degrees F or C) • Unit measurement for test weight (lb/bu or kg/hl) • Radix point (, or .) • Moisture, test weight, and temperature display resolution (tenths or hundredths) Test Weight defaults to display on the Analysis Results screen but can be removed by disabling at the Sample Setup screen.

  • Page 43: Owner Data

    Owner Data Screen to enter data. GAC2500-AGRI System Setup System Setup Time Units Owner Data More GAC2500-AGRI Owner Data Owner Data DICKEY-john Corp. Name Auburn, IL 62615 Address Phone 217-438-3371 SETUP GAC® 2500 AGRI 11001-1626B-201405...

  • Page 44: Service Data

    GAC2500-AGRI System Setup System Setup Service Data Clear Database Check Scale GAC2500-AGRI Service Data Service Data Frank from DICKEY-john 457-2222 Service Note: basic checkout 03 10 / /2013 Service Date: Reset Resettable Counter : 2000 Total Cycles:...

  • Page 45: Lcd Display Touch Screen Calibration

    Esc button to keep previous settings. Without an attached keyboard, press anywhere on the screen to accept. Figure 36 Display Calibration GAC2500-AGRI Service Data Service Data Frank from DICKEY-john 457-2222 Service Note: basic checkout 03 10 / /2013 Service Date: Reset...

  • Page 46: Data Storage Capacity

    OPERATOR’S MANUAL DATA STORAGE CAPACITY The unit is capable of storing a maximum of 3,000 test results. The database can be cleared at any time by selecting the Clear Database button located under the System Setup screen. When stored data has reached approximately 2,500 records, a warning screen automatically appears when attempting a grain measurement that indicates memory capacity is getting low.

  • Page 47: Check Scale

    OPERATOR’S MANUAL CHECK SCALE Check Scale performs an instrument scale measurement for a weight accuracy comparison with an external scale. The readings displayed onscreen are actual temperature and weight product results. To perform a Check Scale: 1. At the System Setup screen, press the More button until the Check Scale button displays.
  • Page 48 OPERATOR’S MANUAL Figure 39 Performing a Check Scale GAC2500-AGRI Check Scale Check Scale Press Measure to Read Scale Measure GAC2500-AGRI Check Scale Check Scale Measure Tare. GAC2500-AGRI Checking Scale... Checking Scale... Loading... GAC2500-AGRI Checking Scale... Checking Scale... Weighing. GAC2500-AGRI Scale Measurement Results Scale Measurement Results Weight = 263.90 g Temp: 22.72°C...
  • Page 49 OPERATOR’S MANUAL 9. Remove drawer and weigh the grain in the drawer on an external scale and compare to reading on the display. 10. Press the Retest button to perform another check scale or Exit button to return to the Setup screen. Figure 40 Dumping Sample GAC2500-AGRI...

  • Page 50: Network Setup

    DICKEY-john Tech Support. UPDATE INSTRUMENT Update Instrument allows a software update to the instrument via a USB memory device. This feature should be enabled by an authorized service technician or by contacting DICKEY-john Tech Support. Figure 41 Network Setup GAC2500-AGRI...

  • Page 51: Startup

    OPERATOR’S MANUAL STARTUP ® The GAC 2500-AGRI is powered on by pressing the on/off switch located on the front panel (Figure 1). A series of Startup screens load after the system is turned on. A status bar indicates self checks are occurring and upon completion, the Instrument Information screen displays before the Main Menu screen appears.

  • Page 52: Power Down

    OPERATOR’S MANUAL POWER DOWN The unit can be powered down from any screen by pressing the on/off switch located on the front panel. A virtual Power Down button is also available on some top level screens and powers off the unit in the same manner as the on/off switch. A Power Down screen must be acknowledged before the unit shuts down.

  • Page 53: Analyzing Grain

    At the Main Menu screen, three functions are performed: 1. To analyze grain 2. To access test results 3. To setup/customize the unit Figure 44 Main Menu (Home) Screen GAC2500-AGRI DICKEY-john Corporation DICKEY-john Corporation Power Current User: UserName Instrument Information Analyze...
  • Page 54 OPERATOR’S MANUAL USER LOGIN 1. At the Main Menu screen, press the User button. NOTE: Refer to the System Setup, Sample Setup section to enable 2. GUEST appears as the default User Name and must be replaced with user login. a different user name.

  • Page 55: Selecting Product

    OPERATOR’S MANUAL SELECTING PRODUCT To select a grain for testing: NOTE: If User ID is enabled, it must be entered before analyzation can 1. At the Main Menu screen, press the Analyze button. occur. 2. A pre-defined list of 4 grains appear on the Select Product screen. –...

  • Page 56: Hopper Level Indicator

    OPERATOR’S MANUAL To begin analysis: NOTE: To eliminate this screen before each analysis, disable at the 1. If enabled, the Enter Sample ID screen appears. The selected product Sample Setup screen. and Issue ID displays at the top of the screen. –...
  • Page 57 OPERATOR’S MANUAL Figure 48 Hopper Level Indicator GAC2500-AGRI Attention Required Attention Required Please Fill Hopper Yellow =Hopper empty Green = Hopper full 6. Press the Initiate button (green) to begin test. Grain will dump into the measurement cell from the hopper. A test will only perform when the Initiate button is green.
  • Page 58 OPERATOR’S MANUAL 10. The Analysis Results screen displays: NOTE: To automatically return to the Sample ID screen without – Product tested pressing the Initiate button – Sample name refer to the System Setup, – Moisture content % Results Setting section for –...

  • Page 59: General Cleaning Tip

    OPERATOR’S MANUAL GENERAL CLEANING TIP Some material accumulation around the measuring cell can possibly occur over time and could possibly affect measurement results. It is recommended the unit be regularly cleaned to ensure continued and consistent results. Refer to the Maintenance section for cleaning steps. NOTE: Refer to the Error Message section for probable causes and corrective actions if errors...

  • Page 60: Database Memory Messages

    OPERATOR’S MANUAL DATABASE MEMORY MESSAGES DATABASE MEMORY FULL WARNING When stored data has reached approximately 2,500 records, a warning screen automatically appears when performing a grain analysis indicating memory capacity is getting low. Analysis can still occur until the maximum allowed records of approximately 3000 is reached.

  • Page 61: Out Of Memory

    Would you like to delete results now? GAC2500-UGMA DATA DRIVE MEMORY LOW GAC 2500-AGRI instruments automatically have engineering data enabled. Engineering data is stored separate from the Results Database. Therefore the Results database can be empty but the Data Drive can exceed capacity causing a memory low error.

  • Page 62: Data Drive Out Of Memory

    OPERATOR’S MANUAL DATA DRIVE OUT OF MEMORY A Data Drive Out of Memory screen appears when the data drive is out of space. An analysis cannot be performed until data is cleared. Figure 54 Data Drive Out of Memory Warning GAC2500-AGRI OUT OF MEMORY FOR RESULTS! OUT OF MEMORY FOR RESULTS!

  • Page 63: Results

    2. At the Results screen, press the View Results button. Figure 55 NOTE: A momentary pause can occur before test results appear on View Results screen. Do not press any GAC2500-AGRI buttons during this time. DICKEY-john Corporation DICKEY-john Corporation Current User: UserName Analyze Results Setup GAC2500-AGRI Results...

  • Page 64: Refine Query Options

    OPERATOR’S MANUAL REFINE QUERY OPTIONS Figure 56 Product Like Criteria Example GAC2500-AGRI Refine Query Refine Query Query only last 100 Record(s) Print only last Record(s) All Products Product Like GUEST User Like Sample ID like Last Days GAC2500-AGRI View Results View Results Queried Title Results of Wh*...

  • Page 65: All Products

    OPERATOR’S MANUAL ALL PRODUCTS NOTE: A status bar indicates progress of retrieving filtered data. Displays all sample tests stored on instrument. Results can take several minutes to load while retrieving PRODUCT LIKE data. Do not press any buttons during this time. Allows entry of part or all of the product name to perform a product search.

  • Page 66: View Products

    OPERATOR’S MANUAL VIEW PRODUCTS The Installed Products screen provides an alphabetical table of active products stored on the unit with respective Issue ID. Products can only be viewed and printed at this screen. 1. At the Results screen, press the View Products button. 2.

  • Page 67: Grain Calibrations

    OPERATOR’S MANUAL GRAIN CALIBRATIONS Grain calibration files will be available for download at the DICKEY-john ® website (www.dickey-john.com) for transfer to the GAC 2500-AGRI via a USB memory device. These files are also available through DICKEY-john Technical Support Group at 1-800-637-3302.
  • Page 68 OPERATOR’S MANUAL GRAIN CALIBRATIONS GAC® 2500 AGRI 11001-1626B-201405...

  • Page 69: Diagnostics

    The Diagnostics screen is used by trained service technicians for troubleshooting. It is recommended that the functions on this screen are only performed by a DICKEY-john representative. To view Diagnostics screen: 1. Press the Setup button to display the Setup screen.
  • Page 70 OPERATOR’S MANUAL DIAGNOSTICS GAC® 2500 AGRI 11001-1626B-201405...

  • Page 71: Maintenance

    OPERATOR’S MANUAL MAINTENANCE IMPORTANT: It is highly recommended the unit be regularly inspected and cleaned to ensure continued and consistent results. For optimum performance, extensive cleaning should be performed weekly or more often based on surrounding environmental conditions. Factors such as dust, temperature extremes, grain dust, and external humidity vary from location to location.

  • Page 72: Internal Cleaning

    – Pressing the Clean button automatically begins the cleaning sequence and opens the hopper door and the trap door (version 2.4 grain handler firmware). Figure 61 Daily Clean Method GAC2500-AGRI DICKEY-john Corporation DICKEY-john Corporation Current User: Guest Analyze Results Setup...
  • Page 73 OPERATOR’S MANUAL Figure 62 Remove Grain Drawer 4. Using the supplied brush, manually remove any loose or stuck grain or dust from the measuring cell. 5. Press the OK button to return instrument to normal operation. Hands should be clear from inside the instrument before pressing the OK button.

  • Page 74: Extensive Cleaning Method

    OPERATOR’S MANUAL EXTENSIVE CLEANING METHOD The daily cleaning method should be performed first before proceeding to NOTE: For customers that require a more extensive cleaning the extensive cleaning method. procedure with buildup in the IMPORTANT: cell, contact and schedule your instrument for cleaning with Extensive cleaning should be performed weekly or more often based your dealer or authorized...
  • Page 75 OPERATOR’S MANUAL 3. Remove other accessory cords (USB and printer). Figure 66 Remove Accessory Cords 4. Remove grain drawer. Figure 67 Remove Grain Drawer 5. Place the unit on its back side. Figure 68 Place Unit on Back Side MAINTENANCE GAC®...
  • Page 76 OPERATOR’S MANUAL 6. Manually pull down on trap door. Figure 69 Pull Down on Trap Door 7. Clean surfaces around measurement cell including hinge, trap door, and edge of cell with the supplied brush. Figure 70 Clean Surface Area Around Cell, Hinge, Trap Door, Edge of Cell 8.

  • Page 77: Cleaning The Temperature Sensor Probe

    DICKEY-john Service or authorized service center. The temperature sensor may require cleaning due to dust buildup and/or foreign material that has collected around the sensor that could potentially cause temperature error readings during analysis.
  • Page 78 OPERATOR’S MANUAL TEMPERATURE SENSOR TYPE The GAC 2500 is equipped with one of two different sensor types. The cleaning method is similar for both types however the cotton swab for cleaning varies based on the sensor type. • older instruments may include an embedded sensor on the circuit board (recommended cotton swab McMaster-Carr p/n 71035T54) •...
  • Page 79 OPERATOR’S MANUAL To Clean the IR Temperature Sensor: 1. Gently place instrument upside down. Figure 77 Place Instrument Upside Down 2. Visually inspect the IR temperature sensor to determine the type of sensor installed. 3. For instruments with the flush sensor and brush bracket, the following procedure can be utilized to remove particles from the brush.
  • Page 80 OPERATOR’S MANUAL Figure 79 Wet Swab with Alcohol 5. Swab method for cleaning sensor: – For embedded sensors, the sensor is located inside the black tube. Insert the swab inside the black tube and gently clean the IR temperature sensor with the wet end of the cotton swab as depicted (Figure 80).
  • Page 81 OPERATOR’S MANUAL The IR temperature sensor can be cleaned with the Q-tip by placing the Q-tip through the funnel or on the outside of the funnel as depicted in (Figure 81). Figure 81 Cleaning the Sensor with Cotton Swab Place Q-tip on either side of funnel to reach...
  • Page 82 OPERATOR’S MANUAL MAINTENANCE GAC® 2500 AGRI 11001-1626B-201405...

  • Page 83: Troubleshooting

    ERROR MESSAGES Error messages display when an abnormal event occurs. An error can be acknowledged by pressing the Initiate button. For any failure that persists, contact DICKEY-john Technical Support at 1-800-637-3302. Figure 82 Error Screen Example GAC2500-AGRI...
  • Page 84 OPERATOR’S MANUAL TROUBLESHOOTING GAC® 2500 AGRI 11001-1626B-201405...
  • Page 85 Internal Power Supply Out of Unit internal voltage is out of specification. Service is required. Contact DICKEY-john Tech Spec Support at 1-800-637-3302. Unable to Predict Moisture A corrupt instrument calibration file or other Dump sample and re-analyze.
  • Page 86 CORRECTIVE ACTION CODE ERROR Unexpected Application The application has encountered an unexpected Press the Initiate (green) button or cycle power to Crash error. reboot the instrument. If problem persists, contact Dickey-john Tech Support at 1-800-637-3302. TROUBLESHOOTING GAC® 2500 AGRI 11001-1626B-201405...

  • Page 87: Warranty

    Europe: DICKEY-john Europe S.A.S, 165, boulevard de Valmy, 92706 – Colombes – France TEL: 33 (0) 1 41 19 21 80, FAX: 33 (0) 1 47 86 00 07, EMAIL: europe@dickey-john.com Copyright 2014 DICKEY-john Corporation Specifications subject to change without notice.

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