Cooper Instruments DFI-250 Installation Manual

DFI 250

DIGITAL INDICATOR

USER’S GUIDE

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CONTENTS

1.0 INTRODUCTION..................................................................................................................................1

1.1 Approvals (for trade versions only).................................................................................................1

1.2 Features..............................................................................................................................................1

1.3 Manuals...............................................................................................................................................1

2.0 SAFETY................................................................................................................................................1

2.1 Operating Environment.....................................................................................................................1

2.2 Electrical Safety.................................................................................................................................1

2.3 Cleaning..............................................................................................................................................1

3.0 BASIC OPERATION...........................................................................................................................2

3.1 User Interface Display and Controls................................................................................................2

3.2 Operation Keys...................................................................................................................................2

3.3 Stability Considerations....................................................................................................................3

3.4 Annunciators......................................................................................................................................3

4.0 BASIC WEIGHING..............................................................................................................................3

4.1 Normal Weighing................................................................................................................................3

4.2 Using Tare...........................................................................................................................................3

5.0 SPECIAL FUNCTIONS......................................................................................................................4

5.1 Testing the Display............................................................................................................................4

5.2 Counting..............................................................................................................................................4

5.3 Units Switching (kg / lb) ....................................................................................................................4

5.4 Hold......................................................................................................................................................4

5.5 Peak Hold............................................................................................................................................4

5.6 Live Weighing.....................................................................................................................................5

5.7 Showing Totals...................................................................................................................................5

6.0 ERROR MESSAGES..........................................................................................................................6

6.1. Weighing Errors................................................................................................................................6

6.2 Setup and Calibration Errors ............................................................................................................6

6.3 Diagnostic Errors...............................................................................................................................6

7.0 WARRANTY REPAIR POLICY.........................................................................................................7

CF 145 DFI 250 ii Rev 1.0 003R-619-100

1.0 INTRODUCTION

This instrument is a precision digital indicator using the latest Sigma -Delta A/D technology to ensure fast and
accurate weight readings.

1.1 Approvals (for trade versions only)

• NSC approval (4000 divisions at 0.8µV/division).

• NMI approval (4000 divisions at 0.8µV/division).

• C-tick approved and CE approved.

1.2 Features

• Zero and Tare functionality as well as battery backed clock/calendar, special function key (for counting, live
weight averaging, peak -hold, etc.).

1.3 Manuals

For more information on this instrument refer to the Reference Manua l or Quick Start Manual.

2.0 SAFETY

2.1 Operating Environment

• Operating Temperature: 14 to 122°F

• Humidity: <90% non-condensing

• Operating Voltage: Shown on Rear Label

2.2 Electrical Safety

• For your protection all electrical hardware must be rated to the environmental conditions of use.

• Pluggable equipment must be installed near an easily accessible power socket outlet.

• To avoid the possibility of electric shock or damage to the instrument, always switch off or isolate the

instrument from the power supply before maintenance is carried out.

2.3 Cleaning

• To maintain the instrument, never use harsh abrasive cleaners or solvents. Wipe the instrument with a soft
cloth slightly dampened with warm soapy water.

CF 145 DFI 250 1 Rev 1.0 003R-619-100