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TABLE OF CONTENTS
Safety Notices ......................................................................................................1
Introduction ..........................................................................................................3
Testing Samples (Quick Start) ...........................................................................................3
Features .............................................................................................................................3
Specifications .....................................................................................................................4
Installation And Setup .........................................................................................5
Removing Shipping Screws ...............................................................................................5
Unit Positioning ..................................................................................................................5
Power Connection .............................................................................................................6
Printing Capabilities ...........................................................................................................6
Startup ..................................................................................................................7
Switchpad Definitions ........................................................................................................7
Settings .................................................................................................................9
Units .................................................................................................................................10
Selecting Language .........................................................................................................10
LCD Contrast ...................................................................................................................11
TW Bias Access Code .....................................................................................................11
Output Options .................................................................................................................12
Measuring Moisture ...........................................................................................13
Preparing To Measure Moisture ......................................................................................13
Loading Hopper ...............................................................................................................14
Grain Selection ...................................................................................................17
Grain Calibrations ..............................................................................................19
Entering New Grain Calibrations .....................................................................................19
Modifying Grain Information .............................................................................................20
Diagnostics .........................................................................................................23
Cell Test ...........................................................................................................................23
Temperature ....................................................................................................................26
Weight Check ..................................................................................................................26
Display Test .....................................................................................................................28
System Information ..........................................................................................................28
Troubleshooting .................................................................................................29
Shipping And Transportation ...........................................................................................29
Cleaning And Care ..........................................................................................................29
Error Codes .....................................................................................................................30
Replacement Parts ..........................................................................................................35
11001-1352-200510
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Summary of Contents for Dickey-John GAC500XT
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Page 1: Table Of Contents
TABLE OF CONTENTS Safety Notices ......................1 Introduction ......................3 Testing Samples (Quick Start) ...................3 Features ..........................3 Specifications ........................4 Installation And Setup ..................5 Removing Shipping Screws ....................5 Unit Positioning ........................5 Power Connection ......................6 Printing Capabilities ......................6 Startup ........................7 Switchpad Definitions ......................7 Settings .........................9 Units ..........................10 Selecting Language ......................10 LCD Contrast ........................11... - Page 2 TABLE OF CONTENTS 11001-1352-200510...
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Page 3: Safety Notices
Use of the word CAUTION without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in equipment damage. GAC500XT 11001-1352-200510... - Page 4 OPERATOR’S MANUAL 2 SAFETY NOTICES GAC500XT 11001-1352-200510...
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Page 5: Introduction
OPERATOR’S MANUAL INTRODUCTION The DICKEY-john Grain Analysis Computer GAC500XT™ quickly tests grain and automatically calculates moisture content, temperature, and approximate test weight (density) of the sample. The unit measures empty cell characteristics, prompts for sample loading, tests the sample, and displays the results. -
Page 6: Specifications
Classes/types of grain or seed: calibration bulletins may be obtained through the DICKEY-john website (www.dickey-john.com) or by requesting a calibration bulletin at: •... -
Page 7: Installation And Setup
OPERATOR’S MANUAL INSTALLATION AND SETUP Before shipping, the GAC500XT is tested and inspected to ensure the unit is fully operational and meets all measurement specifications. After unpacking, inspect for damage that may have occurred during transit. Save all packing material until inspection is complete. If damage is found, immediately file a claim with the carrier. -
Page 8: Power Connection
(Printer connection) Power Plug (rear of GAC500XT) PRINTING CAPABILITIES The GAC500XT will print to a DICKEY-john Strip Printer PRTS (110v) and PRTSI (220v) in a column format, as illustrated in Figure 4. The output from the printer port (Figure is in RS-232 serial format, 1200 baud, 8 data bits, no parity, and 1 stop bit. -
Page 9: Startup
Press the Power button to power up the unit. The Startup screen will appear. Figure 5 POWER Startup Screen Power button DICKEY-john Corp. GAC500 XT Up and Down Arrow buttons SWITCHPAD DEFINITIONS UP AND DOWN ARROW BUTTONS The Up and Down Arrow buttons are used to select menu items, ENTER increment/decrement digits, or select characters. - Page 10 OPERATOR’S MANUAL 8 STARTUP GAC500XT 11001-1352-200510...
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Page 11: Settings
OPERATOR’S MANUAL SETTINGS The GAC500XT provides the opportunity to control settings such as measurement units, language, LCD contrast, access code, and output options. All control settings are customizable to meet user needs. Choose SETTINGS by highlighting it on the Main screen (Figure... -
Page 12: Units
SELECTING LANGUAGE HOME Home button To change the language of the GAC500XT, access the LANGUAGE option on the Settings screen. Press the Enter button. The selected language will be displayed with an asterisk (*) next to the label (Figure Figure 9... -
Page 13: Lcd Contrast
The Left and Right Arrow buttons navigate through the number. Once the desired number has been entered, press the Enter button to accept the value and return to the previous screen. Press the Escape button to return to the previous screen. SETTINGS 11 GAC500XT 11001-1352-200510... -
Page 14: Output Options
Enter button to accept the value and return to the previous screen. Press the Escape button to return to the previous screen or the Home button to return to the Main screen. Escape button HOME Home button 12 SETTINGS GAC500XT 11001-1352-200510... -
Page 15: Measuring Moisture
Empty Cell Test Empty Cell Test Make Sure Cell is Empty And Upright. Then Press ENTER Ensure the GAC500XT is not disturbed during this process. Movement may alter weight measurement, thereby degrading the moisture accuracy. MEASURING MOISTURE 13 GAC500XT 11001-1352-200510... -
Page 16: Loading Hopper
After grain is loaded, return the Loader/Striker to the left. This operation will ensure the cell is completely filled and leveled. Figure 16 Loading Hopper Hopper Grain Loader/Striker Display GAC50 Keypad Cell Dump Lever Sample Drawer 14 MEASURING MOISTURE GAC500XT 11001-1352-200510... - Page 17 If an error occurred during reading, the moisture measurement is a predicted value. Although it is not assured to meet accuracy specifications, it is likely to be accurate within +/- 0.5%. If multiple errors occur, use the Arrow buttons to scroll through the error descriptions. MEASURING MOISTURE 15 GAC500XT 11001-1352-200510...
- Page 18 OPERATOR’S MANUAL 16 MEASURING MOISTURE GAC500XT 11001-1352-200510...
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Page 19: Grain Selection
If the desired grain is not listed, one of the existing grains may be replaced with another. Refer to ENTERING NEW GRAIN CALIBRATIONS for additional information on entering new grains. GRAIN SELECTION 17 GAC500XT 11001-1352-200510... - Page 20 OPERATOR’S MANUAL 18 GRAIN SELECTION GAC500XT 11001-1352-200510...
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Page 21: Grain Calibrations
(16 grains total). The additional grain selections may be accessed by using the Arrow buttons. Once the end of the grain list is reached, the screen will automatically wrap around to the first grain option. Up and Down Arrow Buttons GRAIN CALIBRATIONS 19 GAC500XT 11001-1352-200510... -
Page 22: Modifying Grain Information
Press the Enter button once again to accept the changes and return to the previous screen. Press the Escape (ESC) button to return to the previous screen. Figure 22 Modifying Grain Names Up and Down Arrow Buttons ABCDEFGHIJKLMNO PQRSTUVWXYZabcde fghijklmnopqrstu vwxyz0123456789. Escape button 20 GRAIN CALIBRATIONS GAC500XT 11001-1352-200510... - Page 23 OPERATOR’S MANUAL TEST WEIGHT BIAS The test weight adjustment allows the entering of a correction factor for differences between the GAC500XT grain test weight and the official test ENTER weight method. An offset value may be introduced by authorized personnel.
- Page 24 Issue Left and Right Arrow Buttons 910830 CALIBRATION VALUES (K1-K9) Calibrations are published on the DICKEY-john website, located at Escape button www.dickey-john.com on an annual basis. To maintain current calibration values, these K numbers must be periodically updated. Select the appropriate K number to be updated on the Grain Information screen.
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Page 25: Diagnostics
To access the Cell Test screen, select the CELL TEST option from the Diagnostics screen. Press the Enter button. The Cell Test screen will be displayed (Figure 28). Figure 28 Cell Test Screen Cell Test Null 5KHz 2MHz Self Check Test Network DIAGNOSTICS 23 GAC500XT 11001-1352-200510... - Page 26 If these measurements are out of range, clean the cell (refer to CLEANING AND CARE) and repeat testing once the cell is cleaned. If measurements are out of range after cleaning, contact your distributor or DICKEY-john Service Department at 1-800-637-3302. Outside of the U.S., contact DICKEY-john Europe at 00 33 (0) 1 41 19 21 80.
- Page 27 (Figure 33). Figure 32 Test Network Status Bar Test Network Empty KEEP UNIT STILL Figure 33 Test Network Results Test Network D1: xxxx.x D2: xxxx.x ENTER = Repeat RIGHT = Empty DIAGNOSTICS 25 GAC500XT 11001-1352-200510...
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Page 28: Temperature
Diagnostics screen. Press the Enter button. A message will be displayed advising that the cell must be empty (Figure 35). Figure 35 Weight Check Verification Screen Weight Check Make Sure Cell is Empty And Upright. Then Press ENTER 26 DIAGNOSTICS GAC500XT 11001-1352-200510... - Page 29 OPERATOR’S MANUAL Press the Enter button. The GAC500XT will weigh the empty cell. A status bar will appear, followed by the results of the weight measurement (Figure 36). ENTER Figure 36 Enter button Weight Check Screen - Empty Cell Weight Check Grams 0.00...
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Page 30: Display Test
.................................................... HOME Home button to return to the Main screen..................................................... Home button .................................................... Figure 39 ....................System Information Screen System Info. SN: 000002 Hrdwr Rev: 2 Software Version M: 0005091315 B: 0105080408 28 DIAGNOSTICS GAC500XT 11001-1352-200510... -
Page 31: Troubleshooting
CLEANING AND CARE Ensure unit is disconnected from AC outlet prior to cleaning. To ensure the most reliable operation of the GAC500XT, clean the cell daily during heavy use or prior to storage. Use the cell brush to clean the inside of the grain cell. -
Page 32: Error Codes
OPERATOR’S MANUAL ERROR CODES The GAC500XT contains a microprocessor to control the grain sample measurements and self-checks to determine the integrity of the internal electronics. If any limit is exceeded or malfunctions occur, an error code will be displayed. ERROR 1 Probable Cause: 1. - Page 33 1. The unit has detected a software error. Corrective Action: 1. Contact DICKEY-john Service Department. ERROR 21 Probable Cause: 1. The measurement cell exceeded low limit. Corrective Action: 1. Repeat test. If error recurs, contact DICKEY-john Service Department. TROUBLESHOOTING 31 GAC500XT 11001-1352-200510...
- Page 34 OPERATOR’S MANUAL ERROR 22 Probable Cause: 1. The measurement cell exceeded high limit. Corrective Action: 1. Repeat test. If error recurs, contact DICKEY-john Service Department. ERROR 23 Probable Cause: 1. The measurement cell weight is too low. Corrective Action: 1. Increase the sample size and repeat the test.
- Page 35 1. Repeat the test. Be sure to follow display instructions, ensuring that excess grain has been swept off cell top. ERROR 39 Probable Cause: 1. GAC500XT input voltage low. Corrective Action: 1. Power supply or mobile adapter may be loose or damaged. Verify connection. If problem persists, replace.
- Page 36 OPERATOR’S MANUAL ERROR 40 Probable Cause: 1. GAC500XT input voltage is high. Corrective Action: 1. Replace the power supply or mobile adapter. ERROR 41 Probable Cause: 1. Display voltage is too low. Corrective Action: 1. Contact DICKEY-john Service Department. ERROR 42 Probable Cause: 1.
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Page 37: Replacement Parts
OPERATOR’S MANUAL ERROR 46 Probable Cause: 1. Negative cell voltage is too high. Corrective Action: 1. Contact DICKEY-john Service Department. REPLACEMENT PARTS Mobile Power Adapter 467950190 Wall Power Adapter 467950150 TROUBLESHOOTING 35 GAC500XT 11001-1352-200510... - Page 38 OPERATOR’S MANUAL 36 TROUBLESHOOTING GAC500XT 11001-1352-200510...
- Page 39 ® WARRANTY DICKEY-john warrants to the original purchaser for use that, if any part of the product proves to be defective in material or workmanship within one year from date of original installation, and is returned to DICKEY-john within 30 days after such defect is discovered, DICKEY-john will (at our option) either replace or repair said part.
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