Dickey-John GAC 2500-AGRI Operator's Manual

OPERATOR’S MANUAL
Safety Notices/Disclaimer .................................................................................. 1
Liability ..................................................................................................................2
Introduction ......................................................................................................... 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
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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 ................................................................................................................... 34
Export Data Format ..................................... .... ... ... ... ....................................... ... .... ... ... .. 36
Time ................................................................................................................................ 37
Units ............................................................................................................................... 38
Owner Data .... ... .... ... ... ... .... ...................................... .... ... ... ... ....................................... .. 39
Service Data ................ ... .... ... ... ....................................... ... ... .... ..................................... 40
LCD Display Touch Screen Calibration .......................................................................................... 41
Data Storage Capacity ................................................................................................... 42
Check Scale ................................................................................................................... 43
Network Setup ................................................................................................................ 46
Update Instrument .......................................................................................................... 46
Startup ............................................................................................................... 47
Power Down ................................................................................................................... 48
Analyzing Grain .................................... .... .... .... .... ..... .... .... .... .... ..... .... .... .... .... .. 49
User Login (Optional) ...................................... ... ... ... .... ...................................... .... ... ... .. 49
Selecting Product ........................................................................................................... 51
Performing a Grain Analysis ......................................................... ... ... ... .... ... .................. 51
Hopper Level Indicator ......................... ............................... ... ... ............................... ... ................... 52
General Cleaning Tip ...................................................................................................................... 55
Database Memory Messages ......................................................................................... 56
Database Memory Full Warning ..................................................................................................... 56
Out of Memory ...... ... ... .. ................................ .. ................................ ... .. ........................................... 57
Data Drive Memory Low ................................................................................................................. 57
Data Drive Out of Memory .............................................................................................................. 58
Results .............................................................................................................. 59
Refine Query Options .................. .... ... ... ... ... .... ... ....................................... ... ... ... .... ... ... .. 60
Query Only Last Number of Records ........................ ... .. ... ............................... ... ... .. ... .. ... ... ........... 60
Print Only Last Number of Records ................................................................................................ 60
All Products .................................................................................................................................... 61
Product Like ............................ .. .. ................................................... ................................................. 61
User Like ........................................................................................................................................ 61
Sample ID Like ............................................................................................................................... 61
Unable to Show Query Results ...................................................................................... 61
View Products ................................................................................................................. 62
II /
Grain Calibrations ............................................................................................ 63
Diagnostics ....................................................................................................... 65
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Maintenance ...................................................................................................... 67
External Cleaning ............................................................................................................ 67
Internal Cleaning ............................................................................................................. 68
Daily Clean Method ........................................................................................................................ 68
Extensive Cleaning Method ........................................................................................................... 70
Cleaning the Temperature Sen s or Probe ....... ................................................................................. 73
Troubleshooting ................................................................................................ 79
Warranty ..............................................................................................................83
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OPERATOR’S MANUAL

SAFETY NOTICES

Safety notices are one of the primary ways to call attention to potential hazards. An absence of specific alerts does not mean that there are no safety risks involved.
This Safety Alert Symbol identifies important safety messages in this manual. When you see this symbol, carefully read the message that follows. Be alert to the possibility of personal injury or death.
Use of the word WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Use of the word CAUTION with the Safety Alert Symbol indicates a potentially hazardous situation which, if not avoid ed, may result in minor or moderate injury.
Use of the word CAUTION without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in equipment damage.

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.
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OPERATOR’S MANUAL

LIABILITY

DICKEY-john designed the GAC® 2500 to measure oilseed and grain moisture content. We rigorously test and calibra te each instrument before it leaves the factory. Use of the instrument in the field, however, is subj ect to environmental and operating conditions beyond our control. As a result, we are unable to take responsibility for those conditions and any damages that might follow incorrect results due to those environmental or operational conditions.
Therefore, we expect the operator to take responsibility to assure that the results of the testing is as accurate as possible by following approved maintenance procedures on a regular basis, by cleaning the instrument and its sensors on a regular and as-needed basis depending on the amount of dust, dirt, and debris encountered in the instrument’s use, by monitoring performance using daily check samples, and by adhering to the check procedures set forth in the manual. As with any kind of sophisticated equipment, optimal results depend in part on proper cleaning and maintenance.
For questions concerning these issues, refer to the product warranty, or call your DICKEY-john representative.
2/SAFETY NOTICES
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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.
NOTE: Visit dickey-john.com website
for HELP videos on proper instrument setup, performing a grain analysis, and maintenance routines.

ACCESSORIES

The following list of components are included with the unit and can be ordered as replacement parts:
110V power cord p/n 203150002
220V power cord p/n 203150005 (international optional/not currently included)
Operator’s manual p/n 11001-1626
Cleaning brush p/n 206410003
Grain drawer p/n 468071541
Grain drawer bottomless (optional) p/n 468071542

UNIT OVERVIEW

1. Power (on/off) button
2. Hopper
3. Hopper full sensors
4. Touch screen display
5. USB connections (2) front (2) back
6. Sample drawer
7. Bubble lev el
8. Adjustment feet (4)
Figure 1 GAC2500-Agri Overview (Front of Unit)
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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
Error messages display when out-of-limits moisture, grain weight, or grain temperature occur
Customizable work environment
Optional password protection
Storage of 3,000 grain tests
Internal memory capacity to handle future upgrades
Printing capabilities
A variety of external communication options

SPECIFICATIONS

Operating temperature: 36 to 113 degrees F (2 to 45 degrees C)
Power: 110/220V, 50/60 Hz, 30/35 VA
Humidity: 20 to 90% noncondensing
Grain temperature: -4 degrees F to +113 degrees F (-20 degrees to +45 degrees C) depending on grain calibrations
Storage/transit temperature: -4 to +140 degrees F (-20 to +60 degrees C)
Moisture range: 5 to 45% (grain dependent)
Approximate weight: 25 lbs.
Approximate dimensions: 17”H x 19”W x 14”D
4/INTRODUCTION

DECLARATION OF CONFORMITY

The GAC® 2500-AGRI conforms with the provisions of the following directives and regulations:
EN2006/95/EC Low Voltage Directive
EN2004/108/EC EMC Directive
EN61010-1 Safety requirements for electrical equipme nt for measurement, control, and laboratory use operating at a maximum altitude of 6562 feet (2000 meters)
CAN/CSA - C22.2 NO. 61010-1 and ISA - 82.02.01 (IEC 61010-1 MOD) and UL61010-1
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Power Cord Connection
(2) USB
(1) LAN
(1) RS232
Serial Port
Printer
Connection
(1) USB (B)
EMC
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)
Electrostatic discharge (ESD) EN 61000-4-2 (1995) + A1 (1998) + A2 (2001)
Surge EN 61000-4-5 (1995) + A1 (2001)
Voltage dips and interruptions EN 61000-4-11 (2004)
Emission
Radiated emission CISPR II:2003 + A1: 2004
Conducted emission CISPR II:2003 + A1: 2004

EXTERNAL COMMUNICATION CONNECTIONS

4 USB connections (2 in front, 2 in back) to connect a keyboard, mouse, printer or flash drive. Up to 3 devices can be active on USB.
®
1 USB connection to connect the GAC software download to the device, installing calibrations, or remotely accessing data from the instrument.
1 ethernet connection to connect the GAC network for downloading of software to the device, installing calibrations, or remotely accessing data from the instrument.
1 RS232 serial port printer connection
2500-AGRI to a computer for
®
2500-AGRI to a PC or
Figure 2 External Communication Connections (Back of Unit)
Appropriate space must be left around the input power connector to allow easy disconnection at the unit.
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PRINTER

An optional printer that is RS232 compatible or a USB printer that supports
®
Printer Control Language (PCL) can connect to the GAC 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. The data can be automatically prin te d at th e en d of eac h measurement cycle or manually initiated by pressing the Printer button.
Figure 3 Printer
2500-AGRI to
6/INTRODUCTION
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Shipping bracket on each side

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.
To unlock shipping bracket:
1. Remove Allen wrench from upper foam packaging insert.
Figure 4 Remove Allen Wrench
2. Carefully remove unit from packaging and place on a flat, sturdy surface.
3. Remove grain drawer and set aside.
4. Place unit on its backside. Shipping brackets are located on the left and right side wall.
Figure 5 Remove Grain Drawer and Locate Shipping Brackets
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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
8/UNPACKING THE INSTRUMENT
7. Press down on the bracket to release.
Figure 8 Press Down on Bracket
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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
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10. Perform the same procedure to the other bracket.
11. Once both brackets are securely tightened to the operating location, place unit upright.
IMPORTANT: If for any reason this unit is shipped or transported, the hex bolts should be removed from the operating location and secured back to the shipped locked location to protect the measurement cell during transit!
UNPACKING THE INSTRUMENT/9
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.
Instrument should be placed on a flat, level surface that does NOT exceed more than 1 degree of tilt (left to right and front to back).
CAUTION: A surface that exceeds this requirement can effect measurement results.
Surface should be vibration free.
CAUTION: Vibration from other machines or devices can effect measurement results.

LEVELING INSTRUMENT

A bubble level located on the top surface of the instrument aids in leveling the instrument for optimum test weight measurement.
– Adjust the feet (4) on instrument bottom until bubble is in the center
of the level.
10/UNPACKING THE INSTRUMENT
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OPERATOR’S MANUAL
16.9”
18.6”
10.5”
16.2”
18.6”
13.9”
SIDE VIEW
FRONT VIEW
TOP VIEW

INSTALLATION

The GAC® 2500-AGRI unit requires minimal setup. The unit is fully assembled and ready for operation after attaching the AC power cord and inserting the grain drawer.
NOTE: After unpacking, visually
inspect for damage occurring during transit. Save all packing materials until inspection is complete. If damage is found, file a claim with the carrier immediately and notify your DICKEY-john sales representative.
Figure 11 Unit Dimensions
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CONNECTING AC POWER

1. Securely connect power cord into the AC plug connection (Figure 2) located on the back of the unit.
2. Plug the male end into an appropriate 3-wire (grounded) outlet.
The grounding pin on the line cord connects directly to the
®
GAC grounding wire is connected properly to a good earth ground to prevent a shock hazard.
2500-AGRI frame. When using an adapter ensure the
INSTALLATION/11
OPERATOR’S MANUAL
Bottomless Grain Drawer

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. The size of the hole must be at least equal to the drawer dimension and located directly beneath the grain sample drawer.
NOTE: Contact DICKEY -john Technical
Support at 1-800-637-3302 for additional information on grain drawers.
Figure 12 Flow Through Work Counter
12/INSTALLATION
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OPERATOR’S MANUAL
Enter Sample ID
Enter Sample ID
Sample ID
Load Sample
View Last Result
Product: Corn Issue ID:
Customer ID
Sample ID
Customer ID
GAC2500-AGRI
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GAC2500-AGRI

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 prop er ly cl ea n display.
Do not use any sharp objects on the display. Damage to screen can result.
The following methods are used to navigate through and interface with the unit:
1. Text input boxes
2. Keypad icon (enables keyboard)
3. Buttons
4. Keyboard
Figure 13 LCD Touch Screen Display

USING EXTERNAL DEVICES

The following external devices can be used to enter data and navigate through the screens by connecting to the USB ports (2 front/2 back):
keyboard
•mouse
barcode scanner
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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 locate d on the front panel but can be turned off from either the screen display or the On/Off button.

INITIATE BUTTON

The Initiate button is used to analyze grain and has 3 states of operation: Green = proceed to begin test Yellow = an action is required to proceed Red = system cannot process; error has occurred

PRINT

Print button allows printing test results to a local printer. Refer to the Setup
section for print requirements.

BACK

Back button returns to the previous screen.

ABORT

Abort button dumps grain from hopper, empties the cell, and aborts test.

ENTER

Enter button accepts action taken and proceeds to next screen.
USB
USB button is used when connecting the unit direct to a computer for
downloading software and installing calibrations.

USER

User button appears on the Main Menu screen only if a User ID has been
enabled in System Setup. Requires a tester to enter a User Name before a grain analysis can proceed and will print on a ticket.
14/NAVIGATION
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GAC2500-AGRI

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.

KEYPAD

The Keypad icon appears on those screens that require text entry. Pressing the Keypad icon opens the virtual keyboard for typing text on the screen. The virtual keyboard is used when an external keyboard, mouse, or barcode scanner are not available.
Figure 14 Keyboard
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CLEAN

Clean button appears on the Instrument Information screen and allows cleaning the cell and door using an automated process. During the cleaning sequence, the hopper door automatically op en s.
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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 a s “GUEST” retains the unit in open access mode allowing any user to enter System Settings and modify unit settings.
IMPORTANT: To restrict access to System Setup that affects overall
unit functionality , a new Admin u ser name and p assword must be created.
To Create an Admin User Name and Password:
1. At the Main Menu screen, press the Setup button.
2. Leave the Admin Username and Password as GUEST and press the Enter button.
3. At the Setup screen, press the Admin Settings button.
4. At the Enter New Password screen, press the Admin Username keypad icon and enter an administrator user name.
5. Press the Enter button to accept.
6. Enter a Password and re-enter password to confirm.
7. Press the Enter button to accept.
NOTE: An external keyboard, barcode
scanner, or mouse can be used to enter data into the unit.
Once a new password is created, the unit is configured so that an administrator name and password is required to gain entry into the System Setup screens. Password and User Name can be any combination of letters and numbers.
Refer to Administrative Settings in the System Settings section to change an Administrator user name and password or reset to open access.
IMPORT ANT: The following words should be not used a s User Names:
(ROOT, GUEST, REBOOT, RESET).
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OPERATOR’S MANUAL
System
Setup
Setup
Admin Settings
Enter New Password
FRED
Enter Admin
Username
New Password
Re- Enter Password
FRED PASSWORD
FRED PASSWORD
Enter Admin Username
GAC2500-AGRI
Enter Admin Username
Enter Admin Username
Enter Admin
Username
GUEST
GUEST
Enter
Password
Please Log In
GAC2500-AGRI
Product
Diagnostics
GAC2500-AGRI
Figure 15 Password Screen
18/PASSWORD RESTRICTIONS
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OPERATOR’S MANUAL
System

Setup

GAC2500-AGRI
Setup
Admin Settings
Product
Diagnostics
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 Settin gs button)
Setting system parameters for external devices, language/loca l e preferences, time/date, sample result output, unit measurement, sample/customer ID’s, delete records, and printing formats (System button)
Diagnostics for troubleshooting and unit information (Diagnostic button)
To View Setup Options:
1. At the Main Menu screen, press the Setup button.
2. Enter User Name and Password, if required, and press the Enter button to display the Setup screen. If defaulted to Name (Guest) and Password (Guest) press the Enter button.
Figure 16 Setup Screen
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OPERATOR’S MANUAL
Produ ct Setup
Produ ct Setup
Edit Existing Product
Load New Product
Load New Products
Only appears if flash drive is inserted into unit.
View Produ ct Setup
View Produ ct Setup
DOWN
UP
Oats
Soybeans
Durum Wheat
Corn
Barley 6Row

Product

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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. At the View Product Setup screen an alphabetical product list appears. Press the desired product to highlight. – Press the Up or Down button to display additional products.
3. Press the Enter button to select. Once the product is selected, the product’s parameters display in a table.
Figure 17 Edit Existing Product
20/SETUP
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OPERATOR’S MANUAL
View Produ ct Setup
View Produ ct Setup
Product: Corn Issue ID: 201206N Calibration: UGMA Moisture: Official Test Weight: Certified Range: 8 - 40° Moisture Test Weight Range: 38 - 66 lbs/bu Temperature Range: -18 - 45° C File Name: Corn-20120611N.CAL
Delete
Create
GAC2500-AGRI
Rename Pro duct
Rename Pro duct
New Product Name
Corn NEW
New Issue ID
20100722
Enter New Product Name
GAC2500-AGRI
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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.
NOTE: An external keyboard, barcode
scanner, or mouse can be used to enter data into the unit.
To Create a Product:
1. At the View Product Setup screen, press the Create button.
2. At the Rename Product screen, the product name and NEW appears as the default name.
3. Press the keypad icon to enter a different product name, if desired.
4. A new Issue ID is automatically defined for the new product. Press the keypad icon to enter a different Issue ID, if desired.
5. Press the Enter button to save.
Figure 18 Creating a Product Screen
NOTE: A product’s detail at the View
Product Setup screen can be printed by pressing the Print button.
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MODIFY A PRODUCT’S BIAS AND SLOPE

After a new product is created, that product’s moisture bias, test weight bias, moisture slope, and test weight slope can be modified.
To Modify a Product:
1. At the View Product Setup screen, press the Edit button.
SETUP/21
OPERATOR’S MANUAL
Edit Pro duct
Edit Pro duct
0.02
0.99
0.10
0.99
Moisture Bias
Moisture Slope
Test Weight Bias
Test Weight Slope
GAC2500-AGRI
View Produ ct Setup
View Produ ct Setup
Product: Corn Issue ID: 201206N Calibration: UGMA Moisture: Official Test Weight: Certified Range: 8 - 40% Moisture
: - 66 lbs/ Temperature Range: 0 –45 °C Moisture Bias: -1.35 Moisture Slope: 1.00 Test Weight Bias: 0.00 Test Weight Slope: 1.00 File Name: CornHM-2100.cal
Delete
Edit
Create
GAC2500-AGRI
Produ ct Already Exis ts
Produ ct Already Exis ts
Skip
Replace
Product Already Exists
Corn NEW
GAC2500-AGRI
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Test Weight Range: 38-66 lbs/bu Temperature Range: -18 - 45°C File Name: CORN_20120611N.CAL
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Edit button only appears after a new product is created.
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. –The Skip button returns to the previous product’s bias and slope
setting.
5. The new bias and slope appears in the product table on the View Product Setup screen. The product name and Issue ID will remain the same.
NOTE: An external keyboard, barcode
scanner, or mouse can be used to enter data into the unit .
Figure 19 Edit Slope and Bias
22/SETUP
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OPERATOR’S MANUAL

Delete Produ ct

Delete Produ ct
Confirm Deletion Of Peas2100
GAC2500-AGRI
View Produ ct Setup
View Produ ct Setup
Product: Corn Issue ID: 201206N Calibration: UGMA Moisture: Official Test Weight: Certified Range: 8 - 40% Moisture
: - 66 lbs/ Temperature Range: 0 –45 °C Moisture Bias: -1.35 Moisture Slope: 1.00 Test Weight Bias: 0.00 Test Weight Slope: 1.00 File Name: CornHM-2100.cal
Delete
Edit
Create
GAC2500-AGRI
Test Weight Range: 38-66 lbs/bu Temperature Range: -18 - 45°C File Name: CORN_20120611N.CAL
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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. At the Delete Product screen, press the Enter button to confirm deletion.
Figure 20 Delete Product Screen
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SETUP/23
OPERATOR’S MANUAL
Product Setup
Product Setup
Edit Existing Product

Load New Product

Load New Products
GAC2500-AGRI
PC Communications in Progress
GAC2500-AGRI
PC Communications in Progress
Please wait ...
Select a Calibr ation File
Select a Calibr ation File
DOWN
UP
Directory Contents
1 Directories, 22 Files Exist
\\Hard Disk\
Product Alre ady Exists
GAC2500-AGRI
Product Alre ady Exists
Skip
Replace
Product Already Exists
DurumWheat.cal
DurumWheat.cal
Corn.cal
Opening DurumWheat.cal
GAC2500-AGRI
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LOAD NEW PRODUCT
New product calibrations are loaded to the GAC® 2500-AGRI using a USB memory device. The Load New Product buttons only appear when a USB memory device is inserted in the unit.
To Load a Single Product:
1. Insert the USB memory device to the unit’s USB port on front panel of unit.
2. At the Product Setup screen, press the Load New Product button.
3. Navigate to the directory where the product is located, press on the product name to highlight. – A single tap is required to select the desired file. – Pressing “..\” located at the top of the list returns to previous level in
the directory structure.
4. Press Enter to begin download. A progress bar indicates downloading status.
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.
NOTE: Contact DICKEY -john Technical
Support at 1-800-637-3302 for assistance with obtaining updated calibrations or with transferring data to the unit.
Figure 21 Load New Product Screen
24/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Pro duct S etup
Pro duct S etup
Edit Existing Product
Load New Product
Load New Products
GAC2500-AGRI
Select A Fold er of Calibration File s
Select A Fold er of Calibration File s
DOWN
UP
Directory Contents
\\Ha rd Disk\
4 Directories, 15 Files Exist
GAC2500-AGRI
PC Communications in Progr ess
PC Communications in Progr ess
Please wait ...
GAC2500-AGRI
Opening XXXXXXXXXX
Produc t Already Exists
Produc t Already Exists
Skip
Replace
Product Already Exists
DurumWheat.cal
GAC2500-AGRI
Single tap to open directory. Tap to select/ highlight desired directory.
..\
Directory\
3
2
4
5
To Load Multiple Products:
NOTE: Product calibrations are
available for download at DICKEY-john’s website. www.dickey-john.com/products/ Agriculture/Moisture Testing/ GAC2500/Get Support/ Downloads.
NOTE: You must know the directory
where the files are saved as names do not display.
1. Insert the USB memory device to the unit’s USB port on front panel of unit.
2. At the Product Setup screen, press the Load New Products button to load all products from the selected directory of the memory device or PC.
3. When loading multiple products, navigate through the directory structure and highlight the directory containing the desired products to load. A progress bar indicates downloading status. – A single tap selects the desired directory. – Pressing “..\” located at the top of the list returns to the previous
level in the directory structure.
4. Press the Enter button to begin download.
5. If product calibrations already exist on the instrument, accept new calibrations by pressing the Replace button or the Skip button to revert to the existing product.
Figure 22 Load Multiple Products Screens
GAC® 2500 AGRI
11001-1626B-201405
SETUP/25
OPERATOR’S MANUAL
Enter Admin Username
Enter Admin Username
Enter Admin
Username
FRED
FRED PASSWORD
Enter
Password
Please Log In
DICKEY-john Cor poration
DICKEY-john Cor poration
Analyze
Current User: GUEST
SetupResults
GAC2500-AGRI
GAC2500-AGRI
Enter New Password
JOHN
Enter Admin
Username
New Password
Re- Enter Password
JOHN PASSWORD
JOHN PASSWORD
Enter Admin Username
GAC2500-AGRI
System
Setup
GAC2500-AGRI
Setup
Admin Settings
Product
Diagnostics
2
1
3
4
5
6
7

ADMINISTRATIVE SETTINGS

If the instrument is set with an administrator password, the password can be changed to a different admin user name and/or password.
NOTE: Refer to the Setting Password
Restrictions section for creating a user name and password.

TO CHANGE A KNOWN USE R NAME/PASSWORD

1. At the Main Menu screen, press the Setup button.
2. At the Password Login screen, enter existing user name and password.
3. Press the Enter button to accept.
4. At the Setup screen, press the Admin Settings button to display the Admin Settings screen.
5. Press the keypad icon and enter a new Admin Username.
6. Enter New Password and re-enter password for verification.
7. Press the Enter button to accept changes.
The new user name and password is saved when the Enter button is pressed.
Figure 23 Reset Username and Password
26/SETUP
Contact DICKEY-john Tech Support or a local representative to reset instrument to open access mode.
GAC® 2500 AGRI
11001-1626B-201405
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)
Units of measurement
Sample setup (sample, user ID)
Owner data (troubleshooting information)
Service information (technician information)
Delete database records
Check scale
Network setup (technician recommended)
Update Instrument (technician recommended)
NOTE: Reference the printer’s
specifications for correct settings.

PRINTER SETUP

A USB or RS232 serial port connection is available to connect a printer that prints test data result s to a ticket. Streaming data serially is an option when using the USB printing function.
The ticket can be customized to include details as it relates to facility, date, time, testing errors, and product results. The unit can be set to automatically or manually print a ticket at the end of each test.
To Set Printer Settings:
1. At the System Setup screen, press the Printer button.
2. At the Printer Setup screen, enable the check box for the type of connection between the unit and print er: – RS232 connection using a Null modem cable – PCL USB when connecting to a PCL USB printer – Star USB when connecting to an SP712 USB printer
3. For an RS232 connection, select the Baud Rate, Byte Size, Parity, and Stop Bits that match the printer.
4. When sending results to a printer, a Header and Footer can be added to print on each ticket, if desired. Refer to Adding a Header/Footer section.
5. Press the Test button to verify that the printer and/or computer and the unit’s print settings match for proper communication between the devices.
6. When enabled, Automatically Print Upon Sample Result will print a ticket at the end of each test.
7. When enabled, Include Line Feeds After Print allows additional line feeds to be added at the end of each ticket after printing.
GAC® 2500 AGRI
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SETUP/27
OPERATOR’S MANUAL
Printer Setup
Printer Setup
9600
Baud Rate
1
Stop Bi ts
8
Byte Size
None
Parity
PRN21
Output Format
Header Footer
RS232 Star USB Printer
Test
LF
Line Termination
PCL USB Printer
Automatically Print Upon Sample Result
Include Line Feeds After Print
7
System Setup
System Setup
Printer
Language
More
Locale
GAC2500-AGRI
GAC2500-AGRI
1
2
3
4
5
6
7
8
9
10
NOTE: When printing to a database
using an RS232 connection and CSV printer output format, a line feed of 1 is required for a carriage return/line feed.
8. Select the output format. – PRN20 - Standard 20 column printer output – PRN21 - Special 20 column printer output – PRN80 - Standard 80 column printer output (80 characters per line) – PRN81 - Standard 80 column printer output (81 characters per line) – CSV01 - Comma separated variables (requires a 9600 baud rate)
selected when test results are sent to a computer.
– NTEP - A detailed printout that includes engineering data and test
results used by the National Conference on W eights and Measures.
9. Select the line termination style. – CR - Carriage return – CRLF - Carriage return, line feed – LF - Line feed – LFCR - Line feed, carriage return
10. Press the Enter button to accept selections.
Figure 24 Selecting a Printer Type
28/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Edit Printer Header
Edit Printer Header
Miller Grain Elevator
Custom Information
Owner Specific Data
GAC2500-AGRI
Entered at Owner Data screen
72 Depot Road Anytown, IL USA

ADDING A HEADER AND FOOTER TO TICKET

NOTE: An external keyboard, barcode
scanner, or mouse can be used to enter header and footer information.
Header and Footer text can be added to print on a print ticket. Owner Data text can be selected as the default or customized text can be entered.
To Enter a Header/Footer:
1. At the Printer Setup screen, press the Header button.
2. To use the Owner Dat a address information, enable the ch eck box next to the company name and address. If the owner dat a text box is bla nk, owner data information has not been entered at the Owner Data screen and can be entered at the System Setup screen, Owner Data button.
3. To enter other text, deselect the Owner Data check box.
4. Press the keypad icon on the screen of the lower text box to open the unit’s keyboard and enter desired text.
5. Press the Enter button to accept.
6. If desired, enter a footer name by pressing the Footer button at the Printer Setup screen. Enter desired information to appear in footer.
Figure 25 Header Screen
GAC® 2500 AGRI
11001-1626B-201405
SETUP/29
OPERATOR’S MANUAL
Enter S ample Name
Enter S ample Name
V
UO P Q SR TN
M
G
H IKJ
LF
E0 . A CB D9
82 3 4 65 71
Space
W X Y Z -
GAC2500-AGRI
GAC2500-AGRI
System Setup
System Setup
Printer
Language
Locale
More
Set Language
Set Language
English
Language:
Keyboard Style:
.
QWERTY
Standard
GAC2500-AGRI
GAC2500-AGRI
1
2
3

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
To Select a Keyboard Type:
1. At the System Setup screen, press the Language button.
2. To select a keyboard type, press the radio button to enable either QWERTY or Standard style.
3. Unit will automatically convert to the selected system language and/or the selected keyboard.
30/SETUP
Figure 27 Selecting a Keyboard Style
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Set Locale Calibration Se t
:
Set Locale Calibration Se t
:
United States
Locale – Calibration Set
System Setup
System Setup
Printer
Language
Locale
More
GAC2500-AGRI
GAC2500-AGRI
1
2
2

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:
United States (US)
Additional locales will be available on future releases. Contact Technical Support at 1-800-637-3302 for release dates and available locales.
To Change Locale:
1. At the System Setup screen, press the Locale button.
2. At the Locale screen, press the desired locale to highlight and press Enter to confirm.
3. Sys tem will automatically convert to the selected Locale setting.
Figure 28 Locale Screen
GAC® 2500 AGRI
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SETUP/31
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 informa tion each time a test is performed.
1. At the System Setup screen, press the the More button until the Sample Setup button displays.
2. Press the Sample Setup button .
3. Enable the check box of desired ID’s required when running samples.
4. Press the Enter button to accept.
Prompt for Sample ID
The Sample ID screen step can be hidden so that the screen does not appear during analyzation. If a sample or customer ID is required, “Prompt for Sample ID”, should be checked.
Prompt for Sample ID can be enabled even when a sample or customer ID is not required so the screen appears during analyzation g iving the option to include either of these ID’s.
– Enable when a sample or customer ID are required entries before
analyzation. A sample ID will be associated with each grain test and prints to ticket.
– Disable to eliminate the Sample ID screen before each analyzation
Sequence Sample ID
Automatic number sequencing to the next higher number will occur with additional tests of the same grain. Sequence Sample ID default is enabled.
Customer ID Required
Requires a Customer ID to be associated with each gra in te st an d pr ints to ticket. Customer ID default is disabled.
User Login Required
A User Login requires a tester to login with a user name at the Main Menu screen before grain can be analyzed. If a user login is required, the user name entered at the User Login screen is recorded in the unit’s database and prints on the print ticket. The User button only appears on the Main Menu screen when enabled. User Login default is disabled.
32/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
System Setup
System Setup
Result Setup
More
Sample Setup
Export Data Format
GAC2500-UGMA
Sampling Se tup
Sampling Se tup
When Running Samples::
User Login Required
Prompt for Sample ID
Auto Sequence Sample ID
A Customer ID is Required
A Sample ID is Required
GAC2500-AGRI
GAC2500-AGRI
1
2
3
4
Figure 29 Sample Setup Screen
GAC® 2500 AGRI
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SETUP/33
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 Result s scre en or manually return to this screen with a button press. The unit default is set to manual return. Grain automatically dumps from the hopper in manual or automatic advance mode.
To Display the Sample Return Setup screen:
1. At the System Setup screen, press the More button to display and press the Result Setup button.
2. Press the Result Setup button.
3. Select the checkbox of the desired feature to enable.
4. Press the Enter button to accept.
Automatic Return
Advances from the Analysis screen to the Sample ID screen within a specified period of time (4 to 20 seconds) without pressing the Initiate button.
Manual Return
Advances to the Sample ID screen to perform another test by pressing the
Enter button after each test. Empty Drawer Requirement
A forced empty of the drawer requires a sample dump before proceeding to the next analysis.
Bottomless Drawer in Use
Must be enabled when the bottomless drawer style is used with a flow-through counter to prevent an empty drawer caution from occurring when running tests.
– Grain can also be tested without the grain drawer secured in the
unit when Bottomless Drawer in Use is enabled; however, a Drawer Ignored screen appears each time a test is performed and will only proceed to perform test when the Initiate button is pressed.
Display Test Weight and Temperature
Displays the test weight and temperature on the Results screen for each test. Both features are defaulted to enabled.
34/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Sample Retur n Setup
Sample Retur n Setup
Upon Sample Result:
8
seconds
Enter number between 4 – 20 seconds
Bottomless Drawer in Use
Automatic Return in
Manual R eturn
Require drawer to be emptied after each sample
Display Test Weight Display Temperature
GAC2500-AGRI
System Setup
System Setup
Sample Setup
Result Setup
Export Data Format
More
GAC2500-AGRI
1
2
3
4
Figure 30 Result Setup Screen
GAC® 2500 AGRI
11001-1626B-201405
SETUP/35
OPERATOR’S MANUAL
System Setup
System Setup
Result Setup

Export Data Format

More
Sample Setup
Saved Data
Saved Data
Save Data Outputs in the Following Format:
CSV Format
Excel Format
GAC2500-AGRI
GAC2500-AGRI
1
2
3
4
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. Press the Export Format button.
3. Enable the check box of the desired output.
4. Press the Enter button to accept.
Figure 31 Data Format Screen
36/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
System Setup
System Setup

Time

Time and Date Settings
Time and Date Settings
GAC2500-AGRI
Tuesday, June 10, 2013
6/10/13/ 6:18:06 PM
More
Units
Owner Data
6
18 06
GAC2500-AGRI
TIME
NOTE: The date can be changed to US
or UK format at the Units screen.
1. At the System Setup screen, press the Time button.
2. To select a date, press the Date drop down arrow to display calendar.
3. Use arrows to change the month.
4. Enter time using the up/down arrows.
5. Select PM check box, if applicable.
6. Press the Enter button when done.
Figure 32 Time and Date Screen
GAC® 2500 AGRI
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SETUP/37
OPERATOR’S MANUAL
Units Setup
Units Setup
Date Format:
Temperature:
Radix Point:
Test Weight:
MM/DD/YYYY DD/MM/YYYY
Fahrenheit
Centigrade
Period (.) Comma ( ,)
Lb/bu Kg/hl
Moisture
X.X X.XX
GAC2500-AGRI
System Setup
System Setup

Units

More
Time
Owner Data
GAC2500-AGRI
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.
Unit defaults:
Date (US - MM/DD/YYYY)
Test weight (lbs/bu)
Temperature (degrees F)
Radix point (Period - .)
Moisture (tenths)
To Change Units:
1. At the System Setup screen, press the the More button until the Units button appears.
2. Press the Units button to display the Units Setup screen.
3. Enable the respective check boxes.
4. When selected, press the Enter button to accept.
Figure 33 Units Screen
38/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL

Owner Data

Owner Data
Name
Address
DICKEY-john Corp.
Auburn, IL 62615
Phone
217-438-3371
GAC2500-AGRI
System Setup
System Setup
Units
More
Time
Owner Data
GAC2500-AGRI
OWNER DATA
Enter name, address, and phone information, if desired. Data entered at this screen can be used as the header/footer on a print ticket.
This data can also be viewed by pressing the Instrument Information button found on the Main Menu screen, refer to Printer Setup.
1. At the System Setup screen, press the More button until the Owner Data button appears.
2. Press the Owner Data button and enter name, address, phone number by pressing the keypad icon.
3. Press the Enter button when finished.
NOTE: An external keyboard, barcode
scanner, or mouse can be used to enter data.
Figure 34 Owner Data Screen
GAC® 2500 AGRI
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SETUP/39
OPERATOR’S MANUAL
System Setup
System Setup

Service Data

Service Data
Service Data
Service Note:
Frank from DICKEY-john 457-2222 basic checkout
Service Date:
03 10/ /2013
Reset table C ounter :
Total Cycles:
Reset
2000
100,000
Clear Database
Check Scale
GAC2500-AGRI
GAC2500-AGRI
2
3
4
5
SERVICE DATA
The Service Data screen provides text entry fields for technicians to enter comments regarding service performed on the unit and service date.
– Resettable Counter resets the number of tests to 0. – Total cycles indicates the number of tests performed over the life of
the unit and is not resettable.
1. At the System Setup screen, press the More button until the Service Data button appears.
2. Press the Service Data button to display the Service Data screen.
3. Enter notes and date by pressing the keypad icon.
4. Press Reset button to set counter to 0, if desired.
5. Press the Enter button to accept changes.
NOTE: An external keyboard, barcode
scanner, or mouse can be used to enter data.
Figure 35 Service Screen
40/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Carefully press and briefly hold stylus on the center of the target.
Repeat as the target moves around the screen.
Press the Esc key to cancel.
+
Press Target with finger or stylus
New calibration settings have been measured. Press the Enter key to accept the new settings.
Press the Esc key to keep the old settings.
++
++
Service Data
Service Data
Service Note:
Frank from DICKEY-john 457-2222 basic checkout
Service Date:
03 10/ /2013
Reset table C ounter :
Total Cycles:
Reset
2000
100,000
GAC2500-AGRI
3
4
5

LCD DISPLAY TOUCH SCREEN CALIBRATION

The LCD display touch screen may not respond as it should with a finger touch or stylus after a period of time or if subjected to extreme temperature changes. The display can be re-calibrated to improve responsiveness.
1. At the Service Data screen, press the Display Touch Screen Calibration button and follow onscreen instructions.
2. Carefully press and hold finger on the center of the target.
3. Repeat as the target moves around the screen.
4. With a keyboard attached, press the Enter button to accept new settings or the Esc button to keep previous settings. Without an attached keyboard, press anywhere on the screen to accept.
Figure 36 Display Calibration
GAC® 2500 AGRI
11001-1626B-201405
SETUP/41
OPERATOR’S MANUAL
Your Response Needed
Your Response Needed
Yes
No
Delete All Results?
System Setup
System Setup
Service Data
Clear Database
Check Scale
GAC2500-AGRI
GAC2500-AGRI
Delete Results?
Delete Results?
Delete All Results?
2515 Results in Database
GAC2500-AGRI
Engineering log files present
Delete Engineering Data
Appears if
Engineering
files are present

DATA STORAGE CAPACITY

The unit is capable of storing a maximum of 3,000 test result s. 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 reco rd s, a warning screen automatically appears when attempting a grain measurement that indicates memory capacity is getting low. Analysis can still occur until the maximum allowed records of approximately 3000 is reached. Once maximum storage is reached, grain analysis cannot continue until cleared.
NOTE: Records cannot be exported to
a USB memory device at this screen. If a backup is required, this can be accomplished at the View Results screen found under the Results button.
To Delete Records:
1. At the System Setup screen, press the More button until the Clear Database button displays.
2. Press the Clear Database button to display the Delete Result s screen .
3. At the Delete Results screen, press the Delete All Results button. – A Delete Engineering Data button appears if Engineering log files
are present. This button must be pressed to clear those records.
4. Press Yes to proceed with clearing records. – Press No to abort record deletion.
Figure 37 Memory Capacity Low Screen
42/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
System Setup
System Setup
Service Data

Check Scale

Fill Hopper with Sample
Check Scale
Check Scale
Clear Database
GAC2500-AGRI
GAC2500-AGRI
More
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.
2. Press the Check Scale button to display the Check Scale screen.
3. Fill hopper with a sample. When the hopper is full, the next screen automatically displays.
Figure 38 Performing a Check Scale
GAC® 2500 AGRI
11001-1626B-201405
4. Press the Measure button to start the process. – This is the last screen that allows returning to the previous screen
or returning to the Home screen.
5. Measurement process automatically begins measuring tare then loading and weighing the sample.
6. At the Scale Measurement Results screen, dump any excess material that fell into the drawer during the strike off process. The sample weight and temperature captured during the measuremen t appears on this screen.
7. Insert drawer into instrument.
SETUP/43
OPERATOR’S MANUAL
GAC
Measure Tare.
Check Scale
Check Scale
Loading...
Checking Scale...
Checking Scale...
Weighing.
Checking Scale...
Checking Scale...
Weight = 263.90 g Temp: 22.72°C Please Empty Drawer
Scale Measurement Results
Scale Measurement Results
Scale Measurement Results
Scale Measurement Results
Weight = 263.90 g Temp: 22.72°C Please Close Drawer
Press Measure to Read Scale
Check Scale
Check Scale
Measure
GAC2500-AGRI
GAC2500-AGRI
GAC2500-AGRI
GAC2500-AGRI
GAC2500-AGRI
GAC2500-AGRI
Figure 39 Performing a Check Scale
44/SETUP
8. Press the Dump Sample butt on to du m p sam p le int o dr awer.
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Scale Measurement Results
Scale Measurement Results
Dump Sample
System Setup
System Setup
Retest
Exit
Weight = 263.90 g Temp: 22.72°C
GAC2500-AGRI
GAC2500-AGRI
Weight = 263.90 g Temp: 22.72°C
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
GAC® 2500 AGRI
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SETUP/45
OPERATOR’S MANUAL
System Setup
System Setup

Network Setup

Update Instrument

GAC2500-AGRI
NETWORK SETUP
Network setup specifies ethernet settings for the instrument. This feature should be enabled by an authorized service technician or by contacting DICKEY-john Tech Support.
UPDATE INSTRUMENT
Update Instrument allows a software update to the instrument via a USB memory device. This feature should be enab led by an aut horiz ed serv ice technician or by contacting DICKEY-john Tech Support.
Figure 41 Network Setup
46/SETUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Instrument Information
S/N: 1813-00001 Software Versions: IP Ad dress: 169.254.0.37 Last Serv ice: 1/1/2013
5.0, 2.4, 2.3
Model:
GAC2500-AGRI
GAC2500-AGRI

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.
IMPORTANT: On initial power up of the unit, the system defaults with
open access to all screens. To ensure that the unit’s settings are protected and accessible by qua lified users, an administrative level with password should be created. Refer to the System Setup section for further information.
Figure 42 Startup Screens
GAC® 2500 AGRI
11001-1626B-201405
STARTUP/47
OPERATOR’S MANUAL
Shut Down Requested
Shut Down Requested
Yes
No
Do you want to shutdown?
GAC2500-AGRI

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.
Figure 43 Power Down Screen
48/STARTUP
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Instrument Information
User Login (Optional) Enabled at Sample Setup
User Log Off
DICKEY-john Co rpo ration
DICKEY-john Co rpo ration
Analyze
Current User: UserName
SetupResults
Enter User Name
Username
GUEST
Enter User Name
Clear User Name
GAC2500-AGRI
Power Off
GAC2500-AGRI

ANALYZING GRAIN

The Main Menu screen appears after all Startup screens have loaded. This is the “Home” menu through which all other menus are accessed.
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
GAC® 2500 AGRI
11001-1626B-201405

USER LOGIN (OPTIONAL)

A User Login is an optional feature that requires a user to login b efore grain can be analyzed. The unit default is no user login requ ired. If a user login is required, a User button appears on the Main Menu screen. The User cannot proceed to test grain until a login name is entered. The User Login feature records the user name with a grain test in the unit database and prints on each grain ticket.
ANALYZING GRAIN/49
OPERATOR’S MANUAL
Removes Name
GUEST
GAC2500-AGRI

USER LOGIN

NOTE: Refer to the System Setup,
Sample Setup section to enable user login.
1. At the Main Menu screen, press the User button.
2. GUEST appears as the default User Name and must be replaced with a different user name. Press the keypad icon to enter a new user name.
Figure 45 User Login Keypad
3. Press the Enter button to accept. The user name will appear as the current user on the Main Menu screen.
The unit will continue to analyze grain with the active user name until the user logs off or the power is turned off.
50/ANALYZING GRAIN

USER LOG OFF

1. At the Main Menu screen, press the User button.
2. At the User Login screen, press the Clear User Name button. GUEST will default as the new user name.
3. Press the Enter button to return to the Main Menu screen.
4. A new user name must be entered before additional grain analysis is allowed.
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Select Pr oduct
Select Pr oduct
GAC2500-AGRI
Durum Wheat
Sorghum
Corn
Barley 2Row
Product
DOWN
UP
Barley 6Row
Select Produc t
Select Produc t
GAC2500-AGRI
More
Initiate button
CORN
SOYBEANS
WHEAT WINTER
WHEAT RED

SELECTING PRODUCT

NOTE: If User ID is enabled, it must be
entered before analyzation can occur.
To select a grain for testing:
1. At the Main Menu screen, press the Analyze button.
2. A pre-defined list of 4 grains appear on the Select Product screen. – Grains are saved in a “last used” order. – A grain selected on the first Select Product screen proceeds to
Sample ID screen or the Analysis screen.
3. To view additional grains not viewable on the top level Select Product screen, press the More button. – Press the Up and Down buttons to view grains. – Select the desired grain in the product table. – Once selected, press the Initiate button to accept.
4. Grain is ready for analysis.
Figure 46 Select Product
GAC® 2500 AGRI
11001-1626B-201405

PERFORMING A GRAIN ANALYSIS

Screens that display during analysis will vary based on what configurations are enabled or disabled at the System Setup/Sample Setup screens:
Automatic grain measurement when hopper is full
Sample ID and/or Customer ID screen prompt step
User Login requirement
Empty drawer requirement after each test
ANALYZING GRAIN/51
OPERATOR’S MANUAL
Enter S ample ID
Enter S ample ID
Sample ID
View Last Result
Product : Corn
Issue ID: 070109
Customer ID
Sample Id:
Customer Id:
GAC2500-AGRI
NOTE: To eliminate this screen before
each analysis, disable at the Sample Setup screen.
To begin analysis:
1. If enabled, the Enter Sample ID screen appears. The selected product and Issue ID displays at the top of the screen. – Dump button dumps product from the hopper.
2. A Sample ID name can be entered by pressing the keypad located next to the input box. – If automatic number sequencing is enabled, the next higher number
is automatically entered with additional tests of the same grain (1,2,3, etc). If auto sequence is not selected, the previous tests sample ID is cleared.
3. A Customer ID can be entered by pressing the keypad located next to the input box.
4. Press the Initiate button to proceed.
5. Pour grain into the hopper heaping grain slightly up to the hopper full sensors.
Figure 47 Sample ID Screen
52/ANALYZING GRAIN

HOPPER LEVEL INDICATOR

During analysis, hopper level status is indicated via the Initiate button.
Do not insert fingers or foreign objects into the opened hopper doors.
– Yellow indicates hopper is empty and must be filled before
proceeding.
– Green indicates hop per is full an d testin g ca n pr oc ee d.
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Attention Required
Attention Required
GAC2500-AGRI
Please Fill Hopper
Yellow =Hopper empty Green = Hopper full
Analyzing Corn
GAC2500-AGRI
Analyzing Corn
Please wait ...
SampleID: “Sample ID”
Figure 48 Hopper Level Indicator
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.
7. The cell fills and the striker arm swings across the top of the test cell to wipe away excess grain.
8. During analysis, a testing status bar indicates progress.
Figure 49 Analysis Process
GAC® 2500 AGRI
11001-1626B-201405
9. An audible alarm indicates when test is complete and automatically advances to the Analysis Results screen.
ANALYZING GRAIN/53
OPERATOR’S MANUAL
Analysis Results
Analysis Results
Product: Corn Sample Name: Sample ID
10.9% Moisture
25.2 lb/bu
75.0 F
GAC2500-AGRI
Enter Sample ID
NOTE: To automatically return to the
Sample ID screen without pressing the Initiate button refer to the System Setup, Results Setting section for enabling Automatic Return.
10. The Analysis Results screen displays: –Product tested – Sample name – Moisture content % – Test Weight lbs/bu or kg/hl (optional) – Temperature (optional)
11. Test results are automatically saved to the unit.
12. Press the Initiate button to perform another test.
Grain automatically dumps into the drawer for removal in Manual or Automatic advance.
– A requirement that grain be dumped after each test can be enabled
at the Result Setup screen.
Drawer capacity holds approximately 3 tests. After 3 tests the drawer must be emptied before proceeding.
IMPORTANT: When using a bottomless grain drawer with
flow-through counter, the bottomless drawer feature should be enabled under System Setup, Result Settings to perform unlimited grain tests to eliminate error messages.
Grain will not dump out of the cell if drawer is not present or secure.
Figure 50 Analysis Screen
54/ANALYZING GRAIN
Other Actions:
Print button sends test results to a local printer. – Home button returns to the Main Menu screen. – Enter Sample ID button to enter a Sample ID for next analysis.
Does not allow changing the current Sample ID.
GAC® 2500 AGRI
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OPERATOR’S MANUAL
NOTE: Refer to the Error Message
section for probable causes and corrective actions if errors occur during analysis.
NOTE: Refer to the Save Results
section and Printing Options section for output options.

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.
GAC® 2500 AGRI
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ANALYZING GRAIN/55
OPERATOR’S MANUAL
Memory is getting low!
Memory is getting low!
Yes
No
The Results Database is Filling Up. Would you like to delete results now?
GAC2500-AGRI
Delete Results?
Delete Results?
Delete All Results?
2515 Results in Database
Your Response Needed
Your Response Needed
Yes
No
Delete All Results?
GAC2500-AGRI
GAC2500-AGRI

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.
NOTE: Records cannot be exported to
a USB memory device at this screen. If a backup is required, this can be accomplished at the View Results screen found under the Results button.
To clear Database Records:
1. At the Memory Low screen, press Yes to delete results. –Select No to return to previous screen and abort deleting records.
2. At the Delete Results screen, the number of records in the database is indicated. Press the Delete All Results button to confirm record deletion.
3. Press the Yes button to verify and begin deleting records. –Select No to return to previous screen and abort record deletion.
Figure 51 Clear Database Screen
56/ANALYZING GRAIN
GAC® 2500 AGRI
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OPERATOR’S MANUAL
OUT OF MEMORY FOR RESULTS!
OUT OF MEMORY FOR RESULTS!
Yes
No
The Results Database is Out of Space. You must delete results. Would you like to delete results now?
GAC2500-UGMA
GAC2500-AGRI
Memory is getting low!
Memory is getting low!
Yes
No
The Data Drive is Running Out of Space. Please remove data by clearing the results database and purging the engineering data. Would you like to delete data now?
GAC2500-AGRI

OUT OF MEMORY

A Database Full screen displays when performing a grain analysis and the database has reached maximum storage cap acity. Analysis cannot continue until records are deleted. Follow onscreen instructions to remove records.
Figure 52 Out of Memory

DATA DRIVE MEMORY LOW

GAC 2500-AGRI instruments automatically have engineering da ta enabled. Engineering data is stored separate from the Results Database. Therefore the Results database can be empty but the Dat a Drive can exceed cap acity causing a memory low error. Analysis can continue but the data drive should be cleared soon.
Figure 53 Data Drive Memory Low Warning
GAC® 2500 AGRI
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ANALYZING GRAIN/57
OPERATOR’S MANUAL
OUT OF MEMORY FOR RESULTS!
OUT OF MEMORY FOR RESULTS!
Yes
No
The Data Drive is Out of Space. Please remove data by clearing the results database and purging the engineering data. Would you like to delete data now?
GAC2500-AGRI

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
58/ANALYZING GRAIN
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
DICKEY-john Corpo ration
DICKEY-john Corpo ration
Analyze
Current User: UserName
SetupResults

Results

Results
View Results
View Products
GAC2500-AGRI
GAC2500-AGRI
RESULTS
The Results screen provides access to grain test results and product list.
To View Test Results:
1. At the Main Menu screen, press the Results button.
2. At the Results screen, press the View Results button.
NOTE: A momentary pause can occur
before test results appear on screen. Do not press any buttons during this time.
Figure 55 View Results
GAC® 2500 AGRI
11001-1626B-201405
3. The Results screen default displays all test results with Sample ID, % Moisture, Weight, Temperature, Product, Issue No., Customer ID, User ID, Date and Time.
4. Press the Filter button to choose what events display on the test results record. Refer to Refine Query Options for criteria options.
5. Press the Print button to print results as displayed in the table on the Results screen.
6. Insert USB memory device and press the USB button to transfer product results to a computer. All results are transferred to USB regardless of Filter setting.
RESULTS/59
OPERATOR’S MANUAL
Refine Que ry
Refine Que ry
Query only last 100 Record(s)
All Products
Sample ID like
User Like
Product Like
Last Days
Wh
View Results
View Results
Sample ID
Moisture Weight
Temp
Product
Filter
NSB9SB139.1 11.1 55.1 73.9 Wheat NSB9SB139.2 6.7 55.1 73.5 Wheat NSB9SB122.7 10.4 55.1 73.2 Durum Wheat
Results of Wh* 1 of 3
Down
Progress bar indicates loading, printing, and saving status
Print only last Record(s)
Queried Title
with *
GAC2500-AGRI
GAC2500-AGRI
5
GUEST

REFINE QUERY OPTIONS

Figure 56 Product Like Criteria Example
Results can be filtered to display based on one or all of the following criteria:

QUERY ONLY LAST NUMBER OF RECORDS

Allows entry of a specified number of records to query so that only a specific last number of records are returned. When the Query Only Last option is checked, the title of what is queried will contain an asterisk to indicate that all returned results are displayed per the limit of records entered but ther e could be more older records in the database that meet the same criteria.

PRINT ONLY LAST NUMBER OF RECORDS

Allows entry of a specified number of records to print starting with the last sample taken, such as printing the last 5 samples taken.
60/RESULTS
GAC® 2500 AGRI
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OPERATOR’S MANUAL
Unable to Show Results
Unable to Show Results
OK
Abort
Unable to show all results - Out of Memory. Would you like to automatically reduce the number of results queried and try again?
GAC2500-AGRI
NOTE: A status bar indicates progress
of retrieving filtered data. Results can take several minutes to load while retrieving data. Do not press any buttons during this time.
NOTE: User Like and Sample ID Like
filter function works the same as the Product Like filter. Refer to (Figure 56)

ALL PRODUCTS

Displays all sample tests stored on instrument.

PRODUCT LIKE

Allows entry of part or all of the product name to perform a product search. All records that fit criteria entered in the Product Like filter search will display . Example: Searching for a produ ct like “Wh” searches for all records with “Wh” in the product name. (Figure 56) displays results for Wheat and Durum Wheat.

USER LIKE

Allows entry of part or all of the User name to perform a search for similar records within the User field. All records that fit the criteria entered in the User Like filter search will display.

SAMPLE ID LIKE

Allows entry of part or all of the Sample ID name to perform a search for similar records within Sample ID. All records that fit the criteria entered in the Sample ID Like filter search will display.

UNABLE TO SHOW QUERY RESULTS

When the system has reached near memory storage capacity, a query might not be able to display results per the number of records entered on the Query screen. In this instance, a screen confirmation will re q uir e the query be performed at a reduced number than was entered on the Query screen.
– Press OK to run query at reduced number – Press Abort to cancel and return to Home screen.
Figure 57 Unable to Show Results Screen
GAC® 2500 AGRI
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RESULTS/61
OPERATOR’S MANUAL
Results
Results
View Results

View Products

GAC2500-AGRI
Installed Prod ucts
DOWN
UP
Rice
Wheat
Corn
Barley 6Row
Product Issue ID
GAC2500-AGRI
Oats
20120611N
20120611N
20120611N
20120611N
20120611N
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. Press the Print button to print all active products and respective Issue ID’s.
Figure 58 View Products Screen
62/RESULTS
GAC® 2500 AGRI
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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 USB memory device.
These files are also available through DICKEY-john Technical Support Group at 1-800-637-3302.
®
2500-AGRI via a
GAC® 2500 AGRI
11001-1626B-201405
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64/GRAIN CALIBRATIONS
GAC® 2500 AGRI
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OPERATOR’S MANUAL
GAC2500 Diagnostic Form - AGRI-00001
MAC:00-30-20-ff-09-80 IP:127.0.0.1
Weight: -00.06

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
2. Press the Diagnostics button to view the Diagnostics screen.
Figure 59 Diagnostics Screen
screen.
GAC® 2500 AGRI
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66/DIAGNOSTICS
GAC® 2500 AGRI
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OPERATOR’S MANUAL
Upper grain
hopper sensors

MAINTENANCE

IMPORT ANT: It is highly recommended the unit be regularly ins pected
and cleaned to ensure continued and consistent result s.
For optimum performance, extensive cleaning should be performed weekly or more often based on surrounding environment al conditions. Factors such as dust, temperature extremes, grain dust, and external humidity vary from location to location. If there are any questions about the cleanliness or instrument performance, contact your local authorized service center.
Note: The following recommendations are provided as a guideline to maintain a robust and quality operating instrument. It should not be interpreted as an exhaustive maintenance program. Dust and debris may periodically accumulate in areas not specified in this manual. The owner is responsible for ensuring overall equipment cleanliness. If any questions arise regarding the maintenance or performance of the instrument, contact your dealer or local authorized service center.

EXTERNAL CLEANING

The LCD display may require periodic cleaning. Use a commercial cleaner for glass lenses to remove dust.
Do not apply water, organic solvent or chemicals, such as acid and alkali to the LCD display.
The GAC® 2500 surface can be cleaned with any cleaner designed for plastic and stainless steel surfaces.
Periodically use a rag to wipe the grain hopper and the (2) upper grain hopper sensors.
Figure 60 Grain Hopper Sensors
GAC® 2500 AGRI
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MAINTENANCE/67
OPERATOR’S MANUAL
DICKEY-john Cor poration
DICKEY-john Cor poration
Analyze
Current User: Guest
SetupResults
Cleaning Cell-
Cleaning Cell
Setting Instrument to Cleaning Mode
Please wait...
GAC2500-AGRI
GAC2500-AGRI
Instrument Information
S/N: 1813-00001 Software Versions: IP Add ress: 169.254.0.37 Last Service: 1/1/2013
5.0, 2.4, 2.3
Model:
GAC2500-AGRI
GAC2500-AGRI

INTERNAL CLEANING

Performing continuous tests can result in material accumulation a round th e critical internal components and adversely affect the measurement.
Two types of cleaning are recommended on an as needed basis:
Daily clean
Extensive clean

DAILY CLEAN METHOD

A daily clean method allows cleaning the cell and door using an auto mated process. During the cleaning sequence, the hopper door automatically opens. Instruments with version 2.4 grain handler firmware, the trap door opens automatically also.
To start the cleaning process:
1. At the Main Menu screen, press the Instrument Information button.
2. At the Instrument Information screen, press the Clean button. – Pressing the Clean button automatically begins the cleaning
sequence and opens the hopper door and the trap door (versio n grain handler firmware).
2.4
Figure 61 Daily Clean Method
68/MAINTENANCE
3. Remove the grain drawer.
GAC® 2500 AGRI
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OPERATOR’S MANUAL
Clean Cell
Clean Cell
Ok
GAC2500-AGRI
Clean Cell and Press Ok when complete
Cleaning Cell-
Cleaning Cell
Returning System to Normal Operation
Please wait...
GAC2500-AGRI
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 bef ore pre ssing the OK button.
Figure 63 Cleaning Sequence
GAC® 2500 AGRI
11001-1626B-201405
6. Insert grain drawer.
MAINTENANCE/69
OPERATOR’S MANUAL

EXTENSIVE CLEANING METHOD

NOTE: For customers that require a
more extensive cleaning procedure with buildup in the cell, contact and schedule your instrument for cleaning with your dealer or authorized service center.
The daily cleaning method should be performed first before proceeding to the extensive cleaning method .
IMPORTANT: Extensive cleaning should be performed weekly or more often based
on surrounding environment conditions. Factors such as dust, temperature extremes, grain dust, and external humidity vary from location to location. If there are any questions about the cleanliness or instrument performance, contact your local auth orized service center.
Tools required for internal mechanism cleaning:
Brush p/n 206410003 (included with instrument)
Extensive cleaning of the instrument involves two steps to ensure optimum instrument performance:
1. Internal mechanism cleaning
2. Temperature sensor probe cleaning
To Clean the Instrument:
1. Power down the instrument.
Figure 64 Power Down Instrument
70/MAINTENANCE
2. Unplug power cord.
Figure 65 Unplug Power Cord
GAC® 2500 AGRI
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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
GAC® 2500 AGRI
11001-1626B-201405
5. Place the unit on its back side.
Figure 68 Place Unit on Back Side
MAINTENANCE/71
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, d edge of cell with the supplied brush.
an
Figure 70 Clean Surface Area Around Cell, Hinge, Trap Door, Edge of Cell
8. Close the trap door and clean hinge under trap door with brush.
Figure 71 Clean Under Trap Door
9. Proceed to instruction for cleaning the temperature sensor probe.
72/MAINTENANCE
GAC® 2500 AGRI
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OPERATOR’S MANUAL

CLEANING THE TEMPERATURE SENSOR PROBE

IMPORTANT: Any particles in front of the sensor’s optics can affect
measurement performance. Therefore it is crucial to sufficiently clean the sensor. For excessive dust and/or foreign material buildup on or around the temperature sensor, it is recommended the instrument be returned to DICKEY-john Service or authorized service center.
The temperature sensor may require clea n ing due to du st bu ild up and/o r foreign material that has collected around the sensor that could potentially cause temperature error readings during analysis. It is important the temperature sensor is visually inspected and cleaned each time a regular maintenance check of the instrument is conducted.
Tools required for cleaning the temperature sensor probe:
1. One of the below cotton swabs: – Standard 6” long cotton swab (i.e. McMaster-Carr p/n 7074T12) for
flush sensor
– 6” long, tapered tip cotton swab (i.e. McMaster-Carr p/n 71035T54)
for embedded sensor
Figure 72 Recommended Cotton Swab for Flush Sensor
Figure 73 Recommended Cotton Swab for Embedded Sensor
2. 99% Isopropyl Alcohol
Figure 74 99% Isopropyl Alcohol
3. 10” flat head screw driver (only for instruments with flush sensor/brush bracket.
GAC® 2500 AGRI
11001-1626B-201405
Figure 75 10” Flat Head Screw Driver
MAINTENANCE/73
OPERATOR’S MANUAL
Enlarged view of ush sensor
OR
Enlarged view of embedded sensor
[
Brush and
Bracket
Assembly
(ush sensor)
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)
newer instruments include a flush sensor on the circuit board and a brush bracket (recommended cotton swab McMaster-Carr p/n 7074T12 )
TEMPERATURE SENSOR LOCATION
With the instrument placed upside down and looking inside the instrument, the sensor probe is located in the middle of the instrument toward the top and front attached to a circuit board.
Figure 76 Sensor Probe Location
74/MAINTENANCE
GAC® 2500 AGRI
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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. Carefully place the head of the screw driver (10” length recommended) at the
istles and use a sweeping side-to-side motion through the entire
br length of the bristles no fewer than three times.
Figure 78 Cleaning the Brush Assembly
4. Select the appropriate cotton swab as described. Wet one e cotton swab with 99% Isopropyl alcohol.
nd of the
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MAINTENANCE/75
OPERATOR’S MANUAL
Flush sensorEmbedded sensor
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 in (Figure 80).
– For flush sensors, gently clean the entire IR temperature sensor
surface with the wet end of the cotton swab as de (Figure 80).
picted in
.
Figure 80 Magnified View of Proper Cleaning with Cotton Swab
76/MAINTENANCE
GAC® 2500 AGRI
11001-1626B-201405
OPERATOR’S MANUAL
Funnel
Place Q-tip on either side of funnel to reach sensor
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
GAC® 2500 AGRI
11001-1626B-201405
6. Allow the temperature sensor to dry for 90 seconds then gently clea with the dry end of the cotton swab.
7. Visually inspect the temperature sensor as well as all other areas cleaned to ensure the instrument is free from debris. If there is any question about the cleanliness of the instrument, it should be returned to a dealer or authorized service center.
8. If cleaning is acceptable, return instrument to upright position and replace the drawer.
9. Reconnect power cable and accessory cords.
10. Power on instrument.
IMPORTANT: The foregoing recommendations are provided as a
guideline to maintain a robust and quality operating GAC 2500. It should not be interpreted as an exhaustive maintenance program. Dust and debris may pe riodically accumulate in areas not specified in this manual. The owner is responsible for ensuring overall equipment cleanliness. If any questions arise regarding the maintenance or performance of the instrument, contact your dealer or local authorized service center.
MAINTENANCE/77
n
OPERATOR’S MANUAL
78/MAINTENANCE
GAC® 2500 AGRI
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OPERATOR’S MANUAL
Error Detected
Error Detected
Error: 5
INVALID GRAIN CALIBRATION FILE
An invalid calibration file was
selected.
Re-install the selected calibration file.
If error persists contact technical support.
GAC2500-AGRI
c:\gac2500\product\Durum-Bad.cal

TROUBLESHOOTING

If the system locks, press and hold the On/Off button on the front of machine until system turns off or unplug instrument power . Wait a few seconds and then power on.
®
The GAC measurements and self-checks that determine the integrity of the internal electronics. If any limit is exceeded or malfunctions occur an error code displays with a recommended resolution.

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
2500-AGRI contains a microprocessor to control grain sample
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80/TROUBLESHOOTING
GAC® 2500 AGRI
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OPERATOR’S MANUAL
ERROR
CODE ERROR
1 Empty Cell Measurement
2 Empty Cell Weight Out of
3 No Products Installed No product calibrations were found on the machine. Install product calibration files. 4 Fill Motor Jammed The motor has stalled while loading grain from a
5 Invalid Grain Calibration File An invalid calibration file was selected. Re-install the selected calibration file. 6 Moisture T oo High Measured product is above the moisture upper limit
7 Moisture Too Low Measured product is below the moisture lower limit
8 Instrument Low Temp Limit
9 Grain High Temp Limit
10 Grain Low Temp Limit
11 Sample Weight Too High Test weight is greater than the range specified for
12 Sample Weight T oo Low Test weight is lower than the range specified for the
13 No Communication An internal communication failure has occurred and
14 Instrument High Temp Limit
15 Unit to Grain Differential The difference between grain temperature and
16 Internal Power Supply Out of
17 Unable to Predict Moisture A corrupt instrument calibration file or other
19 Instrument Needs Updated Firmware in the instrument is out of date for this
21 File I/O Error An unexpected file i/o error has occurred. An obstruction has occurred in the cell. Blockage
22 RF interference detected.
50 Weight Measurement Device
51 Invalid Password A service function with an invalid password was
52 Date/Time Incorrect The programmed machine date is less than
53 Cold Sample Moisture Too
5 Dump Motor Timeout The dump mechanism does not appear to be
5
Out of Spec
Spec
Exceeded
Exceeded
Exceeded
Exceeded
Spec
Unable to compute moisture
Error
High
Moisture or dirt buildup in cell. Dump grain and verify cell is clean and free of
Empty cell measurement is out of tolerance Dump grain and verify cell is clean and free of
possible obstruction.
of the calibration.
of the calibration. Instrument temperature is less than the allowed
limit of 0 degrees C. Grain temperature has exceeded the unit
specification to analyze grain. Grain temperature has exceeded the unit
specification to analyze grain.
the calibration selected.
calibration selected.
communication has been lost. Instrument temperature is higher than the allowed
limit of 45 degrees C.
machine temperature has exceeded the unit specification to analyze grain.
Unit internal voltage is out of specification. Service is required. Contact DICKEY-john Tech
unexpected error.
application.
Outside 2-way radio interference or cell board communication interference
An error has occurred with the load cell. Power unit of f and turn back on to reset.
attempted.
expected.
The sample is too high in moisture to accurately read at its current temperature.
closing.
PROBABLE CAUSE CORRECTIVE ACTION
grain in and surrounding the cell.
grain in and surrounding the cell.
Clear blockage from cell.
Verify sample filled the cell.
Verify sample filled the cell.
Move unit to a warmer environment or allow to warm up.
Allow grain to cool and then re-analyze.
Allow grain to warm and then re-analyze.
Use a more representative sample and re-analyze grain. Verify correct grain calibrat i on is selected.
Use a more representative sample and re-analyze grain. Verify correct grain calibrat i on is selected.
Power unit off and turn back on to reset.
Check unit ventilation or move to a cooler environment.
Allow grain and machine temperature to equalize and then re-analyze.
Support at 1-800-637-3302. Dump sample and re-analyze.
Update device with new firmware.
must be cleared before testing can resume. Remove outside radio interference. If problem
persists, contact DICKEY-john Technical Support at 1-800-637-3302.
Service unit if failure continues. If service is required, contact DICKEY-john
Technical Support at 1-800-637-3302 for assistance on how to obtain the password and proper service procedure.
Program the instrument date and time. If problem persists, then the battery backup for the internal clock may need to be replaced. Contact DICKEY-john Technical Support at 1-800-637-3302 for service.
Warm the sample above the low temperature threshold specified in the product calibration file and rerun the measurement.
Check that the dump motor optical sensor is clean and there is no interference in the dump mechanism. Press the Green button to retry. If error persists, contact technical support at 1-800-637-3302.
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ERROR
CODE ERROR
100 Unexpected Application
Crash
PROBABLE CAUSE CORRECTIVE ACTION
The application has encountered an unexpected error.
Press the Initiate (green) button or cycle power to reboot the instrument. If problem persists, cont act Dickey-john Tech Support at 1-800-637-3302.
82/TROUBLESHOOTING
GAC® 2500 AGRI
11001-1626B-201405
Dealers have the responsibility of calling to the attention of their customers the following
warranty prior to acceptance of an order from their customer for any DICKEY-john product.
DICKEY-john® 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. This warranty does not apply to damage resulting from misuse, neglect, accident, or improper installation or maintenance; any expenses or liability for repairs made by outside parties without DICKEY-john’s written consent; damage to any associated equipment; or lost profits or special damages. Said part will not be considered defective if it substantially fulfills the performance expectations. THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES OF MERCHANTABILITY, FITNESS FOR PURPOSE, AND OF ANY OTHER TYPE, WHETHER EXPRESS OR IMPLIED. DICKEY-john neither assumes nor authorizes anyone to assume for it any other obligation or liability in connection with said part and will not be liable for consequential damages. Purchaser accepts these terms and warranty limitations unless the product is returned within fifteen days for full refund of purchase price.
For DICKEY- john Service Department, call
1-800-637-3302 in either the U.S.A. or Canada
Headquarters:
5200 Dickey-john Road, Auburn, IL USA 62615
TEL: 217 438 3371, FAX: 217 438 6012, WEB: www.dickey-john.com
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.
Issue Date May, 2014
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