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OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

Safety Notices ..................................................................................................... 1

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 ...................................................................................... 13

Home .............................................................................................................................................. 13

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 ............................................................................................................................ 19

Edit Existing Product ...................................................................................................................... 19

Edit Product .................................................................................................................................... 21

Create Product ............................................................................................................................... 22

Delete Product ............................................................................................................................... 23

Load New Product .......................................................................................................... 24

Administrative Settings ................................................................................................... 26

To Change a Known User Name/Password .................................................................................. 26

System Setup .................................................................................................................. 27

Printer Setup .................................................................................................................................. 27

Adding a Header and Footer to Ticket ........................................................................................... 29

Streaming Data Serially ................................................................................................................. 29

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

Setup continued ................................................................................................. 30

Printer/Scale Setup ......................................................................................................... 30

Language and Keyboard Settings .................................................................................. 31

Sample Setup ................................................................................................................. 33

Result Setup ................................................................................................................... 35

Export Data Format ........................................................................................................ 37

Time ................................................................................................................................ 38

Units ............................................................................................................................... 39

Owner Data .................................................................................................................... 40

Service Data ................................................................................................................... 41

LCD Display Touch Screen Calibration .......................................................................................... 42

Data Storage Capacity ................................................................................................... 43

Check Scale ................................................................................................................... 44

Network Setup ................................................................................................................ 47

Update Instrument .......................................................................................................... 47

Startup ............................................................................................................... 49

Power Down ................................................................................................................... 50

Analyzing Grain ................................................................................................ 51

User Login (optional) ...................................................................................................... 51

Selecting Product ........................................................................................................... 53

Performing a Grain Analysis ........................................................................................... 53

Hopper Level Indicator ................................................................................................................... 54

General Cleaning Tip ...................................................................................................................... 57

Database Memory Messages ......................................................................................... 58

Results .............................................................................................................. 61

Refine Query Options ..................................................................................................... 62

Maximum Records to Return .......................................................................................................... 62

Maximum Records to Print ............................................................................................................. 62

All Products .................................................................................................................................... 63

Product ........................................................................................................................................... 63

User ................................................................................................................................................ 63

Sample ID ....................................................................................................................................... 63

Last ................................................................................................................................................. 63

Unable to Show Query Results ...................................................................................... 63

Audit Trail ....................................................................................................................... 64

View Products ................................................................................................................. 66

Grain Calibrations ............................................................................................ 67

Diagnostics ....................................................................................................... 69

Maintenance ...................................................................................................... 71

External Cleaning ........................................................................................................... 71

Internal Cleaning ............................................................................................................ 71

Quick Clean Method ....................................................................................................................... 71

Extensive Cleaning Method ............................................................................................................ 74

Cleaning the Temperature Sensor Probe ....................................................................... 77

LCD Display Care ............................................................................................................ 78

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

/III

Troubleshooting ................................................................................................ 79

Error Messages ............................................................................................................... 80

Warranty ..............................................................................................................83

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

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.

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

SAFETY NOTICES

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

INTRODUCTION / 3

INTRODUCTION

The DICKEY-john Grain Analysis Computer GAC® 2500 (models UGMA

and INTL) 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: This manual addresses setup

and operation of the

DICKEY-john Grain Analysis

Computer GAC® 2500

instrument models UGMA and

INTL.

ACCESSORIES

The following list of components are included with the unit and can be

ordered as replacement parts:

• 110V power cord p/n 203150002 (model GAC 2500-UGMA)

• 220V power cord p/n 203150005 (model GAC 2500-INTL)

• Operator’s manual p/n 11001-1505E

• 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 Overview (Front of Unit)

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

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

• 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

• Large storage to handle complete grain calibration library

• 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 is in conformity 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

• NTEP GRAIN ANALYZE (NCWM publication 14 and NIST Handbook

44) (model GAC 2500-UGMA)

OPERATOR’S MANUAL

GAC® 2500 Models (UGMA & INTL)

11001-1505E-201305

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 to a PC for downloading

of software to the device, installing calibrations, or remotely accessing

data from the instrument.

• 1 ethernet connection to connect the GAC® 2500 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 Models (UGMA & INTL)

11001-1505E-201305

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 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

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