VERDER CARBOLITE GERO CRF/1 Handbuch

Installation, Operation and Maintenance Instructions

1000°C CO2 Reactivity Furnace - CRF Model: 1

3508 Controller

CRF/1 3508 Controller

MEN-CRF01-001_3508 (18-10-2021)

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 Warnings 4

1.1 General Warnings 4

2.0 Installation 5

2.1 Unpacking and Handling 5

2.2 Siting and Setting Up 5

2.3 Electrical Connections 6

2.4 Gas Supply Connections 7

2.5 Glass Retort Thermocouple 9

3.0 Operation 11

3.1 Operating Cycle 11

3.2 General Operating Advice 15

3.3 Recovery of Glass Retort 16

3.4 Over-Temperature 17

3.5 Adjustment of Reaction Time 18

3.6 Power Adjustment 19

4.0 Temperature Controller 20

5.0 Maintenance 21

5.1 General Maintenance 21

5.2 Maintenance Schedule 21

5.3 Maintenance Schedule 23

5.3.1 Cleaning 25

5.4 Calibration 25

5.5 After-Sales Service 25

5.6 Recommended Spare Parts and Spare Parts Kit 25

6.0 Repairs and Replacements 26

6.1 Safety Warning - Disconnection from Power Supply 26

6.2 Safety Warning - Refractory Fibre Insulation 26

6.3 Temperature Controller Replacement 26

6.4 Thermocouple Replacement 27

6.5 Solid-State Relay Replacement 27

6.6 Fuse Replacement 27

6.7 Element Replacement 28

7.0 Fault Analysis 29

A. Furnace Does Not Heat Up 29

B. Product Overheats 30

8.0 Wiring Diagrams 31

9.0 Fuses and Power Settings 32

9.1 Fuses 32

9.2 Power Settings 32

10.0 Specifications 33

10.1 Environment 33

1.0 Warnings

1.1 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

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.

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:

2.4 Gas Supply Connections

High quality bulkhead connectors are provided for the connection of suitable gas. The

incoming supply piping should measure 6 mm outside diameter

When fitting the incoming pipe refer to the following instructions, this will ensure a

leak-free joint is made. The Swagelok fittings will allow disconnection and re-

connection many times providing the instructions are followed.

The gas should be clean, dry and free from impurities.

Gas Supply Connection Pipe

CO2ø6 mm

1. The CO2gas supply should be isolated and regulated above 2 bar. (Approximately

5 bar).

2. Turn on the gas supply.

3. Slowly increase the CO2pressure regulator until the pressure gauge reads 2 bar.

4. This may need fine adjustment when the test has started.

5. Connect glass retort to CO2OUT

2.5 Glass Retort Thermocouple

1. Remove front right hand side panel.

2. Un-plug the thermocouple

3. Remove the centre MI thermocouple, by turning the fixing screw out.

4. Lower the thermocouple down and through the hole in bottom mesh.

5. Fit outer glass retort into heating chamber, locating the bottom end of the smaller

retort tube through the base of the heating chamber.

6. Carefully slide the thermocouple into the glass tube to the top of the sheath.

7. Pull back from the top 2mm and re-fit the fixing screw.

8. Plug back in the thermocouple.

9. Re-fit front panel.

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