Dickey-John GAC 2500-AGRI User manual

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

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
II /
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
Grain Calibrations ............................................................................................ 63
Diagnostics ....................................................................................................... 65

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
/ III
Maintenance ...................................................................................................... 67
External Cleaning ............................................................................................................ 67
Internal Cleaning ............................................................................................................. 68
Daily Clean Method ........................................................................................................................ 68
Extensive Cleaning Method ........................................................................................................... 70
Cleaning the Temperature Sensor Probe ........................................................................................ 73
Troubleshooting ................................................................................................ 79
Warranty ..............................................................................................................83

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
IV /

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
SAFETY NOTICES / 1
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 avoided, 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.

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
2 / SAFETY NOTICES
LIABILITY
DICKEY-john designed the GAC®2500 to measure oilseed and grain
moisture content. We rigorously test and calibrate each instrument before it
leaves the factory. Use of the instrument in the field, however, is subject to
environmental and operating conditions beyond our control. As a result, we
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.

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
INTRODUCTION / 3
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 level
8. Adjustment feet (4)
Figure 1
GAC2500-Agri Overview (Front of Unit)
1
3
2
3
4
5
6
7
8

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
4 / INTRODUCTION
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
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 equipment 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

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
INTRODUCTION / 5
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® 2500-AGRI to a computer for
software download to the device, installing calibrations, or remotely
accessing data from the instrument.
• 1 ethernet connection to connect the GAC® 2500-AGRI to a PC or
network for downloading of software to the device, installing
calibrations, or remotely accessing data from the instrument.
• 1 RS232 serial port printer connection
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.
Power Cord
Connection
(2) USB
(1) LAN
(1) RS232
Serial Port
Printer
Connection
(1) USB (B)

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
6 / INTRODUCTION
PRINTER
An optional printer that is RS232 compatible or a USB printer that supports
Printer Control Language (PCL) can connect to the GAC®2500-AGRI to
print test data results to a ticket. The ticket can be setup to include the
facility name and address, product, date and time, sample ID, customer ID,
grain calibration date, percent moisture, grain temperature, test weight, and
errors. The data can be automatically printed at the end of each
measurement cycle or manually initiated by pressing the Printer button.
Figure 3
Printer

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
UNPACKING THE INSTRUMENT / 7
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
Shipping
bracket on
each side

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
8 / UNPACKING THE INSTRUMENT
5. Loosen hex bolt from the shipping locked location.
Figure 6
Loosen Hex Bolt from Bracket
6. Remove hex bolt and set aside.
Figure 7
Remove Hex Bolt
7. Press down on the bracket to release.
Figure 8
Press Down on Bracket

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
UNPACKING THE INSTRUMENT / 9
8. Slide bracket forward and align with operating location.
Figure 9
Slide Bracket Forward
9. Insert hex bolt into operating location hole and securely tighten using
the Allen wrench.
Figure 10
Insert Hex Bolt and Tighten
10. Perform the same procedure to the other bracket.
11. 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!

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
10 / UNPACKING THE INSTRUMENT
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.

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
INSTALLATION / 11
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
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®2500-AGRI frame. When using an adapter ensure the
grounding wire is connected properly to a good earth ground
to prevent a shock hazard.
16.9”
18.6”
10.5”
16.2”
18.6” 13.9”
SIDE VIEW
FRONT VIEW
TOP VIEW

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
12 / INSTALLATION
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: ContactDICKEY-johnTechnical
Support at 1-800-637-3302 for
additional information on grain
drawers.
Figure 12
Flow Through Work Counter
Bottomless
Grain Drawer

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
NAVIGATION / 13
NAVIGATION
The user interacts with the GAC®2500-AGRI via the LCD touch screen
display. Screen interaction by finger touch or using a dull, pointed object,
such as a stylus or pen is recommended.
Refer to the Maintenance section for how to properly clean display.
Do not use any sharp objects on the display. 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
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
1
2
34
05182006
GAC2500-AGRI

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
14 / NAVIGATION
TOUCH SCREEN BUTTON FUNCTIONS
HOME
Home button is available on most screens and, when pressed, returns to
the Main Menu screen.
POWER OFF
Power Off button turns the system off from the touch screen display. The
system must be turned on using the On/Off button located on the front panel
but can be turned off from either the screen display or the On/Off button.
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.

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
NAVIGATION / 15
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
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 opens.
GAC2500-AGRI

OPERATOR’S MANUAL
GAC® 2500 AGRI
11001-1626B-201405
16 / NAVIGATION