VERDER CARBOLITE GERO VMF-ASTM Handbuch

Installation, Operation and Maintenance Instructions

1000 °C Volatile Matter Test Furnace - VMF Model: 50 mm Ø

No Controller

VMF-ASTM + No Controller

MEN-VMF-ASTM-04_NOCTRL (29-10-2021)

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

1.3 Prerequisites to Use 5

2.0 Installation 6

2.1 Unpacking and Handling 6

2.2 Siting and Setting Up 6

2.3 Electrical Connections 7

3.0 Temperature Controller 9

4.0 Operation 10

4.1 Operating Cycle 10

4.2 General Operating Advice 10

4.3 Notes on Test 11

4.4 Operator Safety 11

5.0 Maintenance 12

5.1 General Maintenance 12

5.2 Maintenance Schedule 12

5.2.1 Cleaning 14

5.3 Calibration 14

5.4 After-Sales Service 14

5.5 Recommended Spare Parts and Spare Parts Kit 14

5.6 Power Adjustment 14

6.0 Repairs and Replacements 16

6.1 Safety Warning - Disconnection from Power Supply 16

6.2 Safety Warning - Refractory Fibre Insulation 16

6.3 Panel Removal 16

6.4 Temperature Controller Replacement 17

6.5 Thermocouple Replacement 17

6.6 Element Replacement 17

6.7 Fuse Replacement 17

6.8 Solid-State Relay Replacement 18

7.0 Fault Analysis 19

A. Furnace Does Not Heat Up 19

B. Product Overheats 20

8.0 Wiring Diagrams 21

8.1 WA-11-00 21

8.2 WA-11-01 22

9.0 Fuses and Power Settings 23

9.1 Fuses 23

9.2 Power Settings 23

10.0 Specifications 24

10.1 Environment 24

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.

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

1.3 Prerequisites to Use

Prior to the commissioning and use of this product, all personnel involved in its

installation, operation and maintenance must be deemed competent and have:

lRead and understood the information contained within this manual

lReceived the relevant training with regard to safety and operation of the product

lBeen provided with the appropriate PPE (Personal Protective Equipment) required

for the safe operation of this product

Note: The customer is responsible for ensuring that all of the above conditions are

satisfied before the product is commissioned for use.

Note: Unless otherwise specified, the customer is responsible for the

installation of this product and the safe connection of any additional

equipment and gas or liquid supply lines.

2.0 Installation

2.1 Unpacking and Handling

When unpacking and handling the product, always lift it by its base. Do not use the

door or any other projecting cover or component to support the equipment when

moving it. Use two or more people to carry the product where possible.

Carefully remove any packing material from inside and around the product before use.

Avoid damaging the surrounding insulation when removing packing materials.

NOTE: This product contains Refractory Ceramic Fibre (also known

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

handling this material see section 6.2.

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.

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

disconnected from the electrical supply.

This product is supplied with a crucible holder (a small component made of wire).

Ensure that this is present.

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 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. This manual contains a table of the most common fuse ratings.

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.

When connecting the product to the power supply, the plug or isolating switch should

be accessible, easy to remove, and 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 L1 Brown to live

to either power

conductor

(For USA 200-240V,

connect L1)

N / L2 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:

3.0 Temperature Controller

If this product is fitted with a temperature controller, instructions are provided

separately.

4.0 Operation

4.1 Operating Cycle

This product is fitted with an instrument switch which cuts off power to the control

circuit.

Connect the product to the electrical supply.

Turn on the instrument switch to activate the temperature controllers. The controllers

illuminate and go through a short test cycle.

Over-Temperature option only. If the digital over-temperature option has not yet

been set as required, set and activate it according to the over-temperature controller

instructions.

The product will heat up according to the controller setpoint or program, unless a time

switch is fitted and switched off.

As the product heats up, the heat light glows steadily at first and then flashes as the

product approaches the desired temperature. For more information on temperature

control see the controller instructions.

Over-Temperature option only. If the over-temperature circuit has tripped, an

indicator on the over-temperature controller flashes and the heating elements are

isolated. Find and correct the cause before resetting the over-temperature controller

according to the instructions supplied.

To turn the product off, set the instrument switch to its off position. The controller

display will go blank. If the product is to be left unattended, isolate it from the electrical

supply.

4.2 General Operating Advice

Heating element life is shortened by overheating. Do not leave the

product at high temperature when it is not required. The maximum

temperature is shown on the product rating label and in section 10.0

towards the back of this manual.

Lightweight ceramic fibre insulation can easily be marked by

accidental contact. Some fine cracks may develop in the surface of

the insulation due to the progressive shrinkage of the insulation

materials. Cracks are not usually detrimental to the functioning or the

safety of the product.

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