B&B Electronics DUALCON-3 Datasheet

DUALCON-3 USERS GUIDE

DUALCON-3

MAINS POWERED

ISOLATING SIGNAL CONVERTER

Whilst every effort has been taken to ensure the accuracy of this document, we

accept no responsibility for damage, injury, loss or expense resulting from errors

or omissions, and reserve the right of amendment without notice.

This document is issued by Industrial Interface Research Ltd and may not be

reproduced in any way without the prior written permission of the company.

CAUTION:

This equipment is designed for connection to mains voltages and must be used in accordance with this guide. If it is not, the safety protection

rovided by the equipment may be impaired.

This equipment relies on double / reinforce insulation for safety and does not require a

rotective earth.

IMO

Industrial Interface

February 2002

IIG-020901 Page 1

DUALCON-3 USERS GUIDE

CONTENTS

1. INTRODUCTION ____________________________________ 3

1.1 Hardware Features _________________________________ 3

1.1.1 Isolation Details __________________________________ 3

2. UNPACKING________________________________________ 3

3. CONNECTIONS _____________________________________ 4

4. CONFIGURING THE DUALCON ______________________ 5

4.1.1 Voltage Input: ___________________________________ 6

4.1.2 Current Input ____________________________________ 7

4.1.3 Millivolt (mV) Input ______________________________ 8

4.1.4 Potentiometer Input _______________________________ 9

4.1.5 Thermocouple Input______________________________ 10

4.1.6 RTD Input _____________________________________ 11

4.1.7 Output Configuration_____________________________ 12

5. CALIBRATING THE DUALCON ______________________ 13

6. INSTALLATION ____________________________________ 14

7. TROUBLESHOOTING_______________________________ 15

7.1 Incorrect Reading _________________________________ 15

7.2 Sensor Failure ____________________________________ 15

8. SPECIFICATIONS ( @ 25°C) _________________________ 16

IMO

IMO Precision Controls Limited

1000 North Circular Road

Staples Corner, London NW2 7JP

Telephone: +44 (0) 208 452 6444

Fax: +44 (0) 208 450 274

Web: www.imopc.com

Email: imo@imopc.com

Page 2 IIG-020901

DUALCON-3 USERS GUIDE

1. INTRODUCTION

1.1 Hardware Features

The DUALCON-3 is a universal input Isolating Signal Converter. It can accept virtually every type of analogue input signal from millivolts to 40Vdc, mA, thermocouples, RTD’s etc. It also produces 3 types of analogue output; voltage, mA source, or mA sink on either of 2 analogue outputs. The unit can be powered by any AC voltage between 90 and 264Vac at 50 or 60Hz. For DC voltage the DUALCON-6 is available which can be powered from any supply from 16 to 36Vdc or 18 to 32Vac.

The instrument is packaged in a very compact 17.5mm wide enclosure which can be mounted on standard TS35 DIN-rail.

1.1.1 Isolation Details

The DUALCON-3 has full 3 port isolation of 1000V between the Input Stage, Output Stage 1, Output Stage 2 and Power Supply. The process input and output are double insulated internally from the power supply for safety Additionally the process input and output are isolated from each other for functional

reasons.

2. UNPACKING

The instrument should be carefully inspected for signs of damage which may have occurred in transit. In the unlikely case that damage has been sustained, DO NOT use the instrument, as the safety insulation may have been compromised, but please retain all packaging for our inspection and contact your supplier immediately.

The instrument comes with the following items as standard: 1 Dualcon-3 Isolating Signal Converter

1 Dualcon-3 User Guide

If the instrument has been factory configured the input and output details will be listed on the Serial number label on the side of the unit. If this label is blank then the unit will be set to its default configuration which is 4-20mA input and 2, 420mA source outputs. Please check that the details on the side label are correct, especially the power supply voltage and frequency.

If re-configuration is required please refer to Section 4 of this manual.

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DUALCON-3 USERS GUIDE

45 6

3. CONNECTIONS

The DUALCON is housed in a compact DIN rail mounting enclosure, with 12 terminals, arranged in 4 rows of 3 terminals. Two rows are at the top of the front panel and 2 rows are at the bottom. All the sensor input terminals are on the bottom rows together with the second analogue output, and the power supply and first analogue output are on the top terminals.

The diagram below shows how to connect all the different input, output and power supply types.

PSU

90 – 264VAC

OUTPUT 1

7 9

INPUT

OUT2

+ve

0-10V 0(4)-20mA

- ve

Voltage Source Current Source Current Sink

+ve

Input: mA, Volts, mV, T/C

- ve 2-wire

transmitter

24V Tx Supply

+ve

0-10V 0(4)-20mA

- ve

Voltage Source Current Source

4-20mA Sink

3 Wire RTD 4 Wire RTD

Current Sink

24V Supply

4-20mA Sink

2 Wire RTD

24V Tx Supply

4-20mA Sink

125R to 1K 2 Wire Pot

1K to 100K 3 Wire Pot

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DUALCON-3 USERS GUIDE

4. CONFIGURING THE DUALCON

DO NOT OPEN UNIT OR ADJUST SWITCHES WITH POWER SUPPLY, INPUT OR OUTPUT CONNECTED

The DUALCON is an extremely versatile device which can support many different types of input. The unit is configured by turning the power off, selecting the internal switch settings required and turning the power back on.

To open the DUALCON, 2 catches just below the outer terminal blocks must be pushed in gently, one at a time. The front of the case can then be pulled and the unit will come out of the box.

! WARNING !

Press here gently

There are 4 switch banks, S1, S2, S3 and S4, located inside the DUALCON as shown below:

Switch S3

12 1

Switch S4

1 12

Switch S2

1 12

Switch S1

121

Switch 10 is OFF Switch 11 is ON Switch 12 is OFF

12 1110

ON = 1

OFF = 0

Switch S1 and S2 configure the input type and range, and switch S3 and S4 configure the output types, ranges and a few additional functions. The switch settings are explained in the next few pages. The diagrams refer to switch positions 0 and 1, with 0 being OFF and 1 being ON. This is illustrated in the picture above.

IIG-020901 Page 5

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