TSI Instruments Dickey-John GAC 2700-AGRI User manual

Operator’s Manual
GAC®2700-AGRI
Grain Analysis Computer

GAC®2700-AGRI OPERATOR’S MANUAL 1
6015940 Rev A
C O N T E N T S
SAFETY NOTICES ....................................................................................2
Description of Caution/Warning Symbols ............................................2
Liability.................................................................................................3
INTRODUCTION........................................................................................4
Accessories..........................................................................................4
Unit Overview.......................................................................................4
Features...............................................................................................5
Specifications.......................................................................................5
Grain Calibrations ................................................................................5
Regulatory Compliance Information ....................................................6
External Communication Connections.................................................7
Unpacking............................................................................................7
Packing List..........................................................................................8
Setting up the GAC®2700...................................................................8
Initial Setup ........................................................................................10
Conducting Grain Analyses ...............................................................10
NAVIGATION ...........................................................................................11
Using External Devices......................................................................12
On-Screen Keyboard.........................................................................13
Touch Screen Button Functions ........................................................13
ANALYSIS RESULTS .............................................................................15
CALIBRATIONS ......................................................................................17
SETTINGS ...............................................................................................20
Samples/Results................................................................................21
Units...................................................................................................22
Power Management...........................................................................23
Printers...............................................................................................24
Date/Time...........................................................................................27
Owner Information .............................................................................28
DEVICE INFORMATION..........................................................................29
DIAGNOSTICS ........................................................................................30
CLEANING / MAINTENANCE.................................................................31
External Cleaning...............................................................................32
Internal Cleaning................................................................................32
Daily Clean Method............................................................................33
Extensive Cleaning Method...............................................................33
Cleaning the Temperature Sensor Probe..........................................37
TROUBLESHOOTING.............................................................................40
DICKEY-john®WARRANTY ...................................................................42

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S A F E T Y N O T I C E S
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 product is intended for indoor use.
Description of Caution/Warning Symbols
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.

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Liability
DICKEY-john®designed the GAC®2700 to measure moisture content
in grains, oilseeds, and other products. 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. DICKEY-john®disclaims all
liability for damages resulting from environmental and operating
conditions beyond our control and for any damages that might follow
incorrect results due to those environmental or operational
conditions. IN NO EVENT SHALL DICKEY-JOHN OR ANY OF ITS
AFFILIATES, OFFICERS, DIRECTORS, SUCCESSORS OR
ASSIGNS BE LIABLE FOR ANY DAMAGES WHATSOEVER,
INCLUDING SPECIAL, INDIRECT, CONSEQUENTIAL OR
INCIDENTAL DAMAGES OR DAMAGES FOR LOSS OF PROFITS,
REVENUE, USE, OR DATA AS A RESULT OF CLAIMS,
REGARDLESS OF THEORY BROUGHT, ARISING OUT OF OR
CONNECTED WITH ANY USE OR RELIANCE ON THE
GAC®2700.
The operator is responsible for ensuring the results of the testing
are as accurate as possible by following approved maintenance
procedures on a regular basis, making sure the calibrations are up
to date and the latest version is being utilized, 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 precision instrument, 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.

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INTRODUCTION
The DICKEY-john®Grain Analysis Computer GAC®2700 quickly tests
grain and automatically calculates moisture content, grain temperature,
and test weight (bulk density) of the sample. The unit prompts for sample
loading, tests the sample, and displays the results.
Accessories
The following list of components are included with the unit and can be
ordered as replacement parts:
• Detachable AC power cord p/n 203150002 (US)
• Quick Start Guide p/n 6015416
• Cleaning brush p/n 206410003
• Grain drawer p/n 468071541
• Grain drawer bottomless (optional) p/n 468071542
• Allen wrench (5/32”) p/n 468072300
Replacement parts can be obtained by contacting your
dealer or distributor.
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 GAC®2700 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
• Alpha/numeric sample identification with the ability to add an
optional external keyboard or bar code reader using USB
• Error messages display when out-of-limits moisture, grain weight,
or grain temperature occur
• Customizable work environment
• Long-term storage of grain tests
• 8 calibration slots that can be programmed to specific
producer requirements.
• Internal memory capacity to handle future upgrades
• Printing capabilities
Specifications
• Operating temperature: 36 to 113 degrees F (2 to 45 degrees C)
• Power: 36 W, Max
• Voltage: 100-120, 220 / 230-240 VAC
• Frequency: 60 / 50 Hz
• 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, calibration, and
temperature dependent)
• Approximate Weight: 29 lbs.
• Approximate dimensions: 17”H x 16”W x 14”D
• IP rating: IPX0
Grain Calibrations
GAC 2700-AGRI is shipped with eight common calibrations for
producers. These calibrations are the same as the calibrations used
by elevators with the GAC 2700-UGMA grain moisture analyzer.
Please refer to the DICKEY-john®calibration website for a complete
list of calibrations for the GAC®2700.

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Regulatory Compliance Information
The GAC®2700 is in conformity with the provisions of the following
directives and regulations:
Safety
2014/35/EU - Low Voltage Directive (LVD)
EN61010-1:2017 - Safety requirements for electrical equipment
for measurement, control, and laboratory use
UL 61010-1
UL-IEC61010-1:2012 Ed.3+R:19Jul2019
CB –IEC 61010-1:2010/AMD1:2016, Certificate # US/8703/ITS
EMC Emissions
2014/30/EU - Electromagnetic Compatibility (EMC) Directive
EN 61326-1:2013 Class A Group 2 (Electrical Equipment for
Measurement, Control, and Laboratory use)
FCC Part 18.109:2021
ICES-001:2020 Class A Group 2
CISPR11, Group2, Class A
EN 61000-3-2:2014
EN 61000-3-3:2013
KN 11 Group 2 Class A
This product creates an RF signal for measurement purposes and
meets the EMC requirements of the United States (FCC 47 CFR,
Part 18.109.(c), ISM Class A and ANSI C63.4:2014) and Canada
(ICES-001, CISPR11 Group 2, Class A).
EMC Immunity
2014/30/EU - Electromagnetic Compatibility (EMC) Directive
EN 1326-1:2013, Basic Levels (Electrical Equipment for
Measurement, Control, and Laboratory use)
KN 35
The GAC®2700 product series is exempted from the Radio Equipment
Directive 2014/53/EU as the RF signal internal to the product is not used
for communications. The RF signal power is below the threshold limit to
be of concern for EMF Directive 2013/35/EU and therefore no MPE
calculation was determined necessary.
RoHS
We, TSI Incorporated, hereby declare that the GAC®2700 product and all
product variants are in full compliance with RoHS Directive 2011/65/EU
with Amendment EU Directive 2015/863/EU.
WEEE
2012/19/EU
The Declaration of Conformity is available upon request.

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External Communication Connections
• 4 USB-A ports (2 in front, 2 in back) to connect a
keyboard, mouse, printer or flash drive.
• 1 USB-C port to connect the GAC®2700 to
a PC for downloading of software to the device,
installing calibrations, or remotely accessing data
from the instrument (Authorized Service Centers Only).
• 1 RJ45 Ethernet jack for connection to LAN (Future Availability)
• 1 RS232 serial port printer connection
NOTE: USB, Ethernet, and serial (RS-232) cable lengths
are recommended to be less than three meters.
Figure 2 External Communication Connections (Back of Unit)
Be sure to leave enough space around the rear of the instrument to
avoid damage to the input power connector and to facilitate easy
disconnection of the unit.
Unpacking
Carefully unpack the GAC®2700. Refer to the packing list below to
verify that all items are present. Contact DICKEY-john®if items are
missing or broken.
Retain the packaging for use when shipping the instrument; use of
other packaging for shipment may result in damage to the instrument.

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Packing List
Qty
Description
1
Model GAC®2700-AGRI Grain Moisture Analyzer
1
Quick Start Guide
1
AC Power Cord
1
Allen Wrench
1
Cleaning Brush
1
Grain Drawer
Setting up the GAC®2700
Setting up the GAC®2700 requires the following procedures:
1. Open the carton and remove the Allen wrench from the
upper foam insert.
2. Remove the GAC®2700 from the plastic bag. Save the bag, the
packaging material, and the carton to use for future transport of
the instrument.
3. Ensure the installation location is level using the bubble level at
the top of the instrument; adjust the feet if necessary. Unit must
be kept level, making sure that there is sufficient clearance between
the GAC 2700 and the countertop so that the grain drawer is cleanly
inserted into the instrument.
4. Remove the grain drawer and place the unit gently on backside to
locate the shipping brackets on the left and right side walls.
IMPORTANT: Be careful when placing the unit on its backside to
avoid damage to the security switch.

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5. Loosen and then remove the hex bolt from the
bracket on the left side wall.
6. Press down on the bracket to release.
7. Slide the bracket toward the bottom of the instrument.
8. Insert the hex bolt into the operating location hold and
tighten using the Allen wrench.
9. Perform the same procedure to the bracket on the right side wall.
10. Once both brackets are tightened to the operating location,
place unit upright.
Reverse the process to re-install the brackets for transportation.
This locks the weighing mechanism to prevent damage when moving.

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Initial Setup
The GAC®2700-AGRI is ready to begin grain analysis immediately upon
power up after successful setup. The instrument will proceed to the
Home screen after power-up.
Prior to conducting grain measurements, please register the instrument
at the following website: http://www.dickey-john.com/gac2700reg
Conducting Grain Analyses
The GAC®2700 is designed to provide minimal user interaction
to run grain moisture measurements. From the Home screen:
1. Press the Choose Product button to select the grain
or crop that will be analyzed.
2. Enter Sample ID (If desired).
3. Enter Customer ID (If desired).
4. Pour the sample into the Upper Hopper.
5. The START button will change to Green when there
is enough grain in the hopper to properly run a sample.
6. Press the START button.
7. No further action is required. When the measurement is complete,
the Moisture %, Test Weight, and Temperature will be displayed.

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N A VI G A T I O N
The user interacts with the GAC®2700 using the LCD touch screen
display. Screen interaction by finger touch.
Refer to Maintenance section for cleaning display.
Do not use any sharp objects on the display. Damage to screen
can result.
The following methods allow navigation through and interface
with the unit:
1. Text input boxes
2. Buttons
3. Keyboard
Figure 3 LCD Touch Screen Display
The default view for the GAC®2700 is the Home screen as described
above. In order to conduct a measurement the user will need to follow the
following steps.
Operation
Description
Press this button to select the grain
desired for moisture measurement.
A pop-up window will appear showing
all grain calibrations installed on the
instrument. Press Grain Name and the
product calibration will automatically
transfer to the home screen for analysis.

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Press the line to bring up a keyboard if it
is desired to track the identification of the
sample. Type using the keyboard and
press .
Press the line to bring up a keyboard if it
is desired to track the identification of the
customer. Type using the keyboard and
press .
Dump Button
Press to transfer the sample from the
upper hopper to the grain drawer.
This is helpful if the user decides
not to measure the sample of grain.
Press this button to review the results
from the last sample that was run
through the GAC®2700.
Press this button to initiate the
measurement process. This button will
turn Green when the instrument is ready
to take a measurement. If the button is
Yellow, text will be displayed to indicate
action necessary to conduct a grain
measurement.
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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On-Screen Keyboard
Select the line to bring up keyboard and to enter content.
Icon
Description
Upper Case/Lower Case button is available to
switch between upper/lower case letters.
Delete button is used to delete letter or space.
Enter button is used to return to the screen and
close out of the keyboard option.
Spacebar button is used to add spaces between
letters/words.
Touch Screen Button Functions
Icon
Description
Home button is available on most screens and, when
pressed, returns to the Main screen.
Drop-down Menu - press this button to select the desired
menu option.
Date - press to change the date.

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Time - press to change the time.
Print button allows printing test results to a local printer.
Refer to the Setup section for print requirements.
Left button returns to the previous option within the screen.
Right button advances to the next option within the screen.
Abort button dumps grain from hopper, empties the cell, and
aborts test.
Drawer Full Button - The button is programmed to turn
Blue when the drawer is in the condition required for
measurement to occur. The button will be gray when it
needs to be emptied. The purpose of the button is to ensure
that grain does not overflow the drawer into the instrument
and onto the workspace.
Moisture
Test Weight
Temperature
USB button is used when installing or exporting calibrations
or result data to a USB memory device.
User button appears on the Main Menu screen only if a User
ID has been enabled in System Setup.
Details - press to view additional results or calibration data.
Filter - press to filter between data.

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A N A L Y S I S R E S U L T S
NAVIGATION FROM SCREEN:
The GAC®2700 is equipped with memory to store approximately
3,000 moisture measurement results consisting of all parameters of the
measurement. Items such as the grain name, moisture and test weight
results, the temperature of the grain at time of measurement, user ID,
sample, ID, etc. are all available on this screen.
Operation
Description
Default View
Results are listed in sequential order.
Sorting
Results can be sorted by pressing on any of the
column headers. Switch between Increasing and
Decreasing by clicking on the Column Header.
Details
Press to view additional data (User ID,
Sample ID, etc.)
Filter
Press the word “Filter” to search for a specific
product calibration, etc. After the click, the
keyboard is displayed. Type in the desired
words and select to execute the
Filter action.
Advanced Filter
Press to filter the results by a certain amount of
days (24 hour increments), a specific number of
results, or even by name of the user.
Download
Press to download results to USB
memory device.

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Note: Results will be downloaded in the format
as specified in the Settings Page.
Print
Press to send results to installed printer,
third party scale or financial management
software system.
Delete Records
Press to delete results. Enter the quantity of
result records to delete in the dialog box that
appears on the screen. Results will be deleted
starting with the oldest in the database.

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C A L I B R A T I O N S
NAVIGATION FROM SCREEN:
Users are able to use this menu to view detailed information of the
currently installed grain calibrations, add new calibrations, modify
existing calibrations, or to delete calibrations.
HELPFUL TIP: Additional calibrations are available for download
at the DICKEY-john calibration website:
http://cal.dickey-john.com/calibrations.aspx.
Operation
Description
Calibration List
List of calibrations installed on the current region
of the GAC®2700. Scroll through the list to find
the desired calibration.
Calibration Details
Press either the calibration name or to view
specific details regarding the calibration.
Delete
Once a calibration has been selected to view the
details, the button is displayed on the screen.
Press this button to permanently delete a
calibration from the GAC®2700.
Note: The GAC®2700 is programmed to
require the user to press the delete button
twice as a safeguard to prevent unintended
calibration deletion.

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Modify Existing
Calibrations
The GAC®2700 will permit the user to modify
existing calibrations.
1. Press the desired calibration name so the
details screen is displayed. If the calibration
is Unofficial, then the Bias & Slope values for
the moisture and test weight parameters will
be in black font.
2. Press on the line to bring up a keyboard to
modify the bias or the slope.
3. Press to save the value.
4. Press to save the calibration.
Pressing will delete the modifications from
the GAC 2700.
Copy Icon
The GAC®2700 will permit the user to create
a new calibration based upon a previously
created calibration.
1. The user should first select the desired
calibration to copy.
2. Press .
3. Enter a name for the new calibration.
Note: The GAC®2700 will always default to
“New” in the name.
4. Enter an Issue ID for the new calibration.
Note: The GAC 2700 will default to the
current date.
5. Press to save the calibration to the
GAC 2700.
Sorting by
Column Header
Press the column header (Favorite, Product
Name, etc.) to sort the calibration list by the
identifier. Press the header twice to switch
between ascending and descending values.
Filter
Press the line, type in the calibration name on
the on-screen keyboard, press the Enter key,
and the GAC 2700 will display calibrations
installed in the region. This is helpful to save the
user time if multiple calibrations have been
downloaded onto the GAC 2700 for the same
grain such as low moisture, regular moisture, or
high moisture.

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USB Symbol
Press to access calibration bundles saved
on a USB memory stick inserted into one of the
USB-A ports of the GAC®2700. Follow the
on-screen prompts to download the calibrations
to the GAC®2700.
Press to upload a single calibration.
Press to export calibrations to
a USB memory stick.