VERDER CARBOLITE GERO MTF 12/25 Series Handbuch

Installation, Operation and Maintenance Instructions

1200°C Small Tube Furnace - MTF Model: 250/400mm

2416 Controller

MTF 12/25/250-400 + 2416 Controller

MEN-MTF1225-003_2416 (10-01-2019)

Contents

This manual is for guidance on the use of the Carbolite Gero product specified on the

front cover. This manual should be read thoroughly before unpacking and using the

furnace or oven. The model details and serial number are shown on the back of this

manual. Use the product for the purpose for which it is intended.

1.0 Symbols and Warnings 4

1.1 Switches and Lights 4

1.2 General Warnings 4

2.0 Installation 6

2.1 Unpacking and Handling 6

2.2 Siting and Setting Up 6

2.3 Tube Fittings 7

2.4 Electrical Connections 8

3.0 2416 Controller 10

3.1 Description 10

3.2 Operation 12

3.3 Programming 14

3.3.1 Programming Tips 14

3.3.2 Multi-program model (2416P8) 15

3.3.3 Holdback 15

3.3.4 Program Cycling 15

3.3.5 Running a Program 15

3.3.6 Program example 16

3.4 Controller Options 17

3.4.1 Digital Communications - RS232 17

3.4.2 Digital Communications - RS485 17

3.4.3 Comms Address 17

3.4.4 Alarm Option 17

3.5 Temperature Controller Replacement 18

3.6 Navigation Diagram 19

4.0 2132 Over-Temperature Controller Description (if fitted) 20

4.1 Description 20

4.2 Operation 20

4.2.1 Controls 20

4.2.2 Operation 21

4.2.3 Over-Temperature Operation 21

4.2.4 Over-Temperature Alarm 21

4.2.5 Resetting the Over-Temperature Alarm 21

4.2.6 Sensor Break 21

4.3 Audible Alarm 22

4.4 Navigation Diagram 22

5.0 Operation 23

5.1 Operating Cycle 23

5.2 General Operating Advice 23

5.3 Operator Safety 24

5.4 Tube Life 24

5.5 Power Adjustment 24

5.6 Running at Low Temperatures 25

6.0 Maintenance 26

6.1 General Maintenance 26

6.2 Maintenance Schedule 26

6.2.1 Cleaning 28

6.3 Calibration 28

6.4 After-Sales Service 28

6.5 Recommended Spare Parts and Spare Parts Kit 28

7.0 Repairs and Replacements 29

7.1 Safety Warning - Disconnection from Power Supply 29

7.2 Safety Warning - Refractory Fibre Insulation 29

7.3 Temperature Controller Replacement 29

7.4 Solid-State Relay Replacement 30

7.5 Thermocouple Replacement 30

7.6 Fuse Replacement 30

7.7 Element Replacement 32

8.0 Fault Analysis 33

A. Furnace Does Not Heat Up 33

B. Product Overheats 34

9.0 Wiring Diagrams 35

9.1 WA-11-30 35

10.0 Fuses and Power Settings 36

10.1 Fuses 36

10.2 Power Settings 36

11.0 Specifications 37

11.1 Environment 37

1.0 Symbols and Warnings

1.0 Symbols and Warnings

1.1 Switches and Lights

Instrument switch: when the instrument switch is operated the

temperature control circuit is energised.

Heat light: the adjacent light glows or flashes to indicate that power

is being supplied to the elements.

Heat switch: the switch disconnects power to the heating elements;

unless this switch is OFF there is a danger of electric shock when

inserting objects into the product.

1.2 General Warnings

DANGER – Electric shock. Read any warning printed next to this

symbol.

WARNING: Risk of fatal injury.

DANGER – Hot surface. Read any warning printed next to this

symbol.

WARNING: All surfaces of a product may be hot.

DANGER – Read any warning printed next to this symbol.

Caution – Double Pole/Neutral Fusing

1.0 Symbols and Warnings

2.0 Installation

2.0 Installation

2.1 Unpacking and Handling

When unpacking or moving the product always lift it by its base or by both ends of the

main body. Never lift it by its work tube or the surrounding insulation. Use two or more

people to carry the product and control box. Remove any packing material from inside

the product before use.

If an optional or special stand is separately supplied, assemble the product on to it.

Some models may be supplied for customer mounting and may require customer

preparation of mounting components before installation.

NOTE: This product contains Refractory Ceramic Fibre (also known as

Alumino Silicate Wool - ASW). For precautions and advice on handling

this material see section 7.2.

2.2 Siting and Setting Up

Place the product on a level surface in a well ventilated area.

Site away from other sources of heat and on a non-flammable surface that is resistant

to accidental spillage or hot materials.

The surface on which the equipment is mounted should be stable and not subject to

movement or vibrations.

The height of the mounting surface is important to avoid operator strain when loading

and unloading samples.

Unless otherwise stated elsewhere in this manual, ensure that there is at least 150

mm of free space around the back and sides of the product. Clear space is required

above the product to dissipate heat.

Work tubes:

It is recommended that the work tube has either insulation plugs or

radiation shields fitted to minimise heat loss from both ends of the work

tube. If the work tube has open ends, a significant amount of energy

could be radiated from the ends of the work tube. Adjacent surfaces

should always be made from a non-flammable material.

Ensure that the ends of the work tube are positioned at least 500 mm

away from any adjacent surface so that any energy radiated cannot heat

an adjacent surface to a dangerous temperature.

Ensure that the product is placed in such a way that it can be quickly switched off or

disconnected from the electrical supply.

A product ordered for vertical use has a small clip or plate at one end to prevent a

wound tube element or a work tube from slipping downwards.

Mount the product so that this clip is at the bottom. In models with one thermocouple

the thermocouple should be near the top rather than the bottom.

If the product is supplied with a separate work tube or any accessories fit these into

position.

Under no circumstances should any objects be placed on top of the product.

Always ensure that any vents on the top of the product are clear of any

obstruction. Always ensure all cooling vents and cooling fans (if fitted) are

clear of any obstruction.

2.3 Tube Fittings

For optimum temperature uniformity, insulating plugs should be placed in the tube ends

as shown in fig.1.

Horizontal models: if heavy fittings are to be clamped to the end of an extended work

tube they can increase the bending stress at the centre of the tube. Support such

fittings in such a way that expansion of the tube is allowed.

2.0 Installation

If a metal work tube is being used in the furnace, ensure that it is earthed. In the case

of woundtube models it should be mounted so as not to touch the furnace ceramic tube.

See the 5.3.

Key

A Tube

B Insulating Plug

C Stem

Fig 1 - Insulating Plug

(standard length tube)

2.4 Electrical Connections

Connection by a qualified electrician is recommended.

This product requires a single-phase A.C. supply with earth (ground), which may be Live

to Neutral non-reversible (polarised), Live to Neutral reversible (non-polarised), or Live

to Live.

Check the product rating label before connection. The supply voltage should agree with

the voltage on the label and the supply capacity should be sufficient for the current on

the label.

The supply should be fused at the next size equal to, or higher than the current on the

label. A table of the most common fuse ratings is also given towards the back of this

manual. When the mains cable is factory fitted, internal fuses are also fitted. It is

essential that the operator ensures that the product is correctly fused.

Products with a factory fitted supply cable are designed to be wired directly to an

isolator or fitted with a line plug.

Products without a factory fitted supply cable require a permanent connection to a

fused and isolated supply. The product's electrical access panel should be temporarily

removed, and connections made to the internal terminals.

If the product is to be connected by line plug. The plug should be within reach of the

operator and should be easy to remove.

When connecting the product to an isolating switch ensure that both conductors (single

phase) or on all live conductors (three phase), and should be within reach of the

operator.

The supply MUST incorporate an earth (ground).

Supply Terminal Label Cable Colour

Supply Types

Live - Neutral Reversible or Live-

Live

1-phase L Brown to live

to either power

conductor

(For USA 200-240V,

connect L1)

N Blue to neutral

to the other power

conductor

(For USA 200-240V,

connect L2)

PE Green/ Yellow to earth

(ground) to earth (ground)

Electrical Connection Details:

2.0 Installation

3.0 2416 Controller

3.0 2416 Controller

3.1 Description

This manual applies to the 2416, 2416CG and 2416P8 controllers.

Special customer requirements may result in changes to the available parameters and

the navigation diagram. It is not possible to list all the possibilities in this manual.

2416CG Controller

The Eurotherm model 2416CG is a digital instrument with PID control algorithms which

may be used as a simple controller or an 8-segment programmer. The 2416P8 is an

eight-program model in which the programs can be stored independently or can be

linked by a “call” parameter to form a single long program.

The 2416 Controller features:

lEasy use as a simple temperature controller, where on setting the required tem-

perature the controller immediately attempts to reach and maintain it. Fig.1 indic-

ates the type of temperature response when used in this way.

lBy using one program segment, the control can be extended to include ramp-to-set-

point. Fig.2 shows the effect.

lAlternatively, the 2416 Controller may be used as an 8-segment programmer, with

each segment being a "Ramp", a "Step", a "Dwell", or "End". The program can be set

to cycle if required. See fig. 3.

lOptional “modules” are available, in particular:

lRS232 and RS432/485 digital communications modules;

lAnalogue communication modules;

l“PDSIO” modules for communication with other controllers of similar or higher spe-

cification, for example, to allow cascade control;

lAlarm modules, which can be used to drive visible or audible alarms, or to provide

volt-free contacts for customer use.

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