Tecfluid MT03L Series Bedienungsanleitung

R-MI-MT03L Rev.: 2 English version

Instructions manual

The art of measuring

Series MT03L

Electronic converter for level transmitters

Thank you for choosing the MT03L converter from MT03 series of

Tecﬂuid S.A.

This instruction manual allows the installation, conﬁguration and

programming of the electronic converter MT03L. It is recommended

to read it before using the equipment.

• This document shall not be copied or disclosed in whole or in any

part by any means, without the written permission of Tecﬂuid S.A.

• Tecﬂuid S.A. reserves the right to make changes as deemed

necessary at any time and without notice, in order to improve the

quality and safety, with no obligation to update this manual.

• Make sure this manual goes to the end user.

• Keep this manual in a place where you can ﬁnd it when you need

it.

• In case of loss, ask for a new manual or download it directly from

our website www.tecﬂuid.com Downloads section.

• Any deviation from the procedures described in this instruction

manual, may cause user safety risks, damage of the unit or cause

errors in the equipment performance.

• Do not modify the equipment without permission. Tecﬂuid S.A. is

not responsible for any problems caused by a change not

allowed. If you need to modify the equipment for any reason,

please contact us in advance.

PREFACE

WARNINGS

TABLE OF CONTENTS

1 INTRODUCTION ........................................................................... 5

2 RECEPTION ................................................................................. 5

2.1 Storage temperature ........................................................... 5

3 INSTALLATION ............................................................................. 5

3.1 Location ............................................................................. 5

3.2 Electrical connection ........................................................... 6

3.2.1 Power supply wiring ............................................... 6

3.2.2 Resistance input wiring .......................................... 7

3.2.3 Current input wiring ............................................... 7

3.2.4 Analog output wiring .............................................. 8

3.2.5 Relay output wiring ................................................ 9

4 OPERATION ................................................................................. 11

5 MAIN MENU ................................................................................. 12

5.1 Passwords to access the menus ......................................... 12

6 INSTALLATION PARAMETERS ...................................................... 14

6.1 Language ........................................................................... 15

6.2 Input .................................................................................. 15

6.3 Limits .................................................................................. 15

6.3.1 Capture ................................................................. 15

6.3.2 Distance adjustment .............................................. 16

6.4 Diagnosis ........................................................................... 16

7 PROGRAMMING PARAMETERS .................................................... 17

7.1 Language ........................................................................... 18

7.2 Units .................................................................................. 18

7.3 Decimals ............................................................................ 18

7.4 Damping ............................................................................ 19

7.5 Outputs ............................................................................. 19

7.5.1 Relay 1 and relay 2 ................................................ 19

7.5.1.1 Alarm ...................................................... 19

7.5.1.2 No action ................................................ 20

7.5.2 Analog output ........................................................ 20

7.5.2.1 Programming of the 4-20 mA output .......... 21

7.5.2.2 Current calibration for 4 and 20 mA .......... 21

8 SERIAL NUMBER .......................................................................... 21

9 SOFTWARE VERSION ................................................................... 21

10 BRIGHTNESS ............................................................................... 22

11 WORKING SCREEN ...................................................................... 22

12 MAINTENANCE ............................................................................ 22

12.1 Fuse .................................................................................. 22

13 ASSOCIATED SOFTWARE WINSMETER MT03 ............................... 22

13.1 USB cable connection and drivers installation ...................... 22

13.2 Port connection .................................................................. 24

13.3 Access to installation and programming ............................... 24

13.4 Visualization ....................................................................... 26

13.5 Firmware updates ............................................................... 27

14 TECHNICAL CHARACTERISTICS .................................................... 29

15 DIMENSIONS ............................................................................... 30

16 TROUBLESHOOTING .................................................................... 31

1 INTRODUCTION

MT03L converters are indicators for level measurement applications.

The electronic circuit is based on the most advanced technology in digital signal processing,

in order to obtain accurate and reliable measurements.

The equipment provides the following features (depending on the model):

• Graphic display with intuitive menus.

• Resistance input compatible with level transmitters series LE and transmitters LTE

from series LT, as well as with most of the level transmitters based in variation of

resistance.

• Analog input 4-20 mA.

• Level indication.

• Current output (4-20 mA) proportional to the level and user programmable.

• Relay outputs user programmable as level alarm..

2 RECEPTION

Converters of series MT03 are supplied conveniently packaged for transportation together

with their instruction manual for installation and operation.

All devices have been veriﬁed in our facilities.

2.1 Storage temperature

-20ºC ...... +60ºC

3 INSTALLATION

3.1 Location

The MT03L converter is housed in a box according to IEC 61554 standard. Its size is 96x96

mm and is intended to be mounted on a panel of a cabinet with a square hole of 90 x 90 mm

+0.5 mm / -0 mm. The cabinet should have a minimum depth of 90 mm behind the panel.

To place it into the cabinet, slide it through the front panel to the bottom as shown in the

following ﬁgure. Then screw the clamping arms until exert pressure on the panel.

3.2 Electrical connection

The connection of the equipment is via plug-in connectors, polarized to avoid mistakes when

plugged in. The connectors have screw terminals, as per VDE standards, to accept cables with

section of 1.5 mm2.

The pictures of the connections in this manual are always looking at the equipment from the

back.

To help in the wiring of the equipment, the description of the terminals is marked on a label

in the rear side of the device.

For the electrical installation it is recommended to use multiple conductor cables with

individual cable sections in the order of 0.25 to 0.5 mm2in order to make it easier to

connect. It is better to maintain the cables with mains voltage (power supply) separated from

the cables with low level signals (4-20 mA, etc.).

To connect the cables, peel the outside insulation to free the inner cables. It is

recommended to put a terminal at the ends of the wires to avoid loose ends.

Then, screw the wires into the corresponding positions in the female aerial connector.

Finally, place each connector with its corresponding male connector on the rear side of the

converter.

IMPORTANT NOTE: In order to comply with the electrical safety requirements as per EN-

61010-1 (IEC 1010-1), the installation of the equipment must take into account the following:

• The equipment must be installed in the front panel of an electrical mounting cabinet,

leaving only the front of the equipment accessible to the operator.

• In case of AC power supply, a mains switch must be provided to disconnect the

equipment. This switch must be marked as the disconnecting device for the

equipment and be within easy reach of the operator.

• The housing must not be opened when the instrument has mains supply

connected.

IMPORTANT NOTE: To ensure smooth operation of the equipment, it is recommended to

make the connection paying attention to the following points:

• For the output signals, use shielded cable when possible.

• Keep the cables away from strong sources of noise.

3.2.1 Power supply wiring

Before starting the wiring of the instrument, check that the supply voltage available is the

same as marked on the label of the converter.

Terminal Power supply AC Power supply DC

11 Phase DC

12 Neutral DC

In case of DC power supply, the equipment is provided by a diode bridge that allows

connecting it regardless of the polarity.

3.2.2 Resistance input wiring

Terminal

4 Resistance

5Resistance

This input is compatible with level transmitters of series LE and transmitters LTE of series LT,

as well as with other level transmitters based on resistance variation with values between 0

and 6500 Ω.

3.2.3 Current input wiring

3.2.4 Analog output wiring

Terminal

1 mA (positive, power supply for a passive device)

2mA input

3 mA (negative, input from an active device)

This input is compatible with any ﬂow rate transmitter that provides a 4-20 mA output.

The impedance is 120 Ω. The input has a protection in order to limit the voltage applied to

the circuit.

In the event that the current transmitter is passive, for example a 2-wire transmitter, it is

necessary to power the current loop. It is done by connecting the transmitter to terminals 1

and 2.

If the current transmitter is active, the connection is between terminals 2 and 3.

3.2.5 Relay output wiring

Terminal

8mA (positive, active output)

9mA

10 mA (negative, passive output)

The analog output is galvanically isolated. It can be either active (which means that the

receiving device must be passive) or passive (which means that the receiver must supply the

power for the current loop). It is recommended to use a receptor with an input resistance of

less than 700  to guarantee correct operation.

The conﬁguration of the analog output mode (active or passive) is done by means of the

connection to the terminal strip. For active mode, terminals 8 and 9 are connected. For

passive mode, terminals 9 and 10 are connected.

NOTE: The analog output has a protection against reversed polarity. Due to another

protection against over voltages, if a loop supply voltage of more than 36 V is connected the

equipment may be damaged.

Active output

Passive output

Terminal Description Relay

13 Normally open Relay 1

14 Normally closed Relay 1

15 Common Relay 1

16 Normally open Relay 2

17 Normally closed Relay 2

18 Common Relay 2

The relay outputs provide relays with potential free contacts (see characteristics on page 29).

The status of the relay contacts corresponds to the relay at rest.

The relay contacts are not protected in any way, and therefore they must be installed

externally as required in the application, taking into account the limitations of the

characteristics of such contacts.

In the case of having inductive loads, and to extend the working life of the relay contacts, it is

recommended to use overvoltage protection (VDR for AC and diodes for DC loads). In all

cases a fuse or some kind of protection against short circuits, should always be provided

according to the needs of the intended load.

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