Grant T100-MST20 User Manual

Gerber/Butyrometer bath
T100-MST20

Operating Manual

Grant Instruments, based near Cambridge, England is a world leader in the
manufacture and design of equipment for sample preparation, scientific analysis, data
acquisition and data analysis providing solutions to the global scientific and industrial
markets.

Standards Compliance and Quality

Grants’ brand and reputation are based around quality, reliability and accuracy. We
ensure our products stringently meet all necessary international safety standards.
We pay particular attention to the safety testing of products and remain at the forefront of
the product safety standard for laboratory equipment IEC 61010-1. The company is
committed to operating its safety test laboratory in accordance with the requirements of
ISO 17025.

Grant operates a Quality Management System that complies with the requirements of BS
EN ISO 9001:2008.

Beyond compliance to the standard, Grant is committed to continually improving in
everything we do; with particular emphasis on understanding what matters to our
customers and suppliers, and designing our systems and work to meet their needs.

If you have any feedback on Grant’s products or services we would like to hear from you.
Please send all feedback to:

Quality Manager
Grant Instruments (Cambridge) Ltd
Shepreth
Cambridgeshire
SG8 6GB
UK

Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

Contents

Contents 2

1.0 Use of products 3

2.0 How to use this operating manual 3

3.0 Safety information 4

3.1 Safety compliance 4

3.2 Safety symbols 4

4.0 Operating instructions 5

4.1 Unpacking instructions 5

4.2 Fitting controller to the tank 5

4.3 Removing the controller from the bridge plate 5

4.4 Recommended liquids 6

4.5 Installation 6

4.6 Electrical supply 6

5.0 Operating procedures 7

5.1 Operation 7

5.1.1 Filling the tank 7

5.1.3 Emptying the tank 7

5.1.4 Setting up and switching on 7

5.2 Using the T100 8

5.2.1 Product description 8

5.2.2 Product indicators 8

5.2.3 Setting the control temperature 9

5.2.4 Configuring a preset 9

5.2.5 Running a bath preset 9

5.2.6 Completing a calibration 10

5.2.7 Restoring factory calibration settings 11

5.2.8 Adjusting display brightness 11

6.0 Technical specifications 12

6.1 Operating conditions 12

6.2 Electrical details 12

6.3 Product performance 12

7.0 Technical Tips 12

7.1 Which water should you use in your bath? 12

7.2 How to prevent rust in water baths 13

7.3 How to prevent algae and bacteria? 13

8.0 Warranty information 14

9.0 Maintenance and service 14

9.1 Routine maintenance 14

9.2 Cleaning 14

9.3 Fuses 14

9.5 Routine safety tests 14

9.6 Service 15

10.0 Optional accessories 15

11.0 Troubleshooting 16

12.0 Contact Grant Instruments 18

13.0 Compliance 18

T100-MST20 31083 V2
Operating Manual Page 2

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1.0 Use of products

The following products are covered by this operating manual:

 T100-MST20

The product listed above is a general purpose immersion thermostat (T100) combined
with a custom stainless steel tank (MST20) designed for milk analysis using the Gerber
test method. It is intended for indoor laboratory use by a professional user.

2.0 How to use this operating manual

This operating manual will allow you to unpack, set-up and operate the T100 immersion
thermostat correctly and safely. Important safety information, symbols and warnings are
listed below and should be read carefully. Section 4 gives information about how to
unpack and install the product correctly. Section 5 gives operating information for the
T100. Product technical specifications and tips are provided in sections 6 and 7. The
warranty for this product is for THREE YEARS and is detailed in section 8 and should be
registered by completing the on-line registration form at www.grantinstruments.com.

If there is a technical matter that this operating manual does not address, or any other
question concerning this product, please contact Grant Instruments or your local
distributor, who will be able to provide any additional information.

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Caution: Surfaces and heat transfer liquid can be hot during and after use.

Read this manual before using the bath.

Important safety warning.

Read the whole of these instructions. Safety may be impaired if they are not
followed.

For the T100, only use water as the working liquid.

Do not use the T100 with flammable heat transfer liquids.

Use fume extraction when using silicone fliuids at elevated temperatures

Do not use the T100 to heat any sample material that could cause a fire or any
other kind of hazard.

Do not use the equipment in an area where there are aggressive or explosive
chemical mixtures.

If a potentially hazardous liquid is spilt onto or inside the equipment, disconnect
it from the power supply and have it checked by a competent person.

It is the user’s responsibility to carry out appropriate decontamination if
hazardous material is spilt on the equipment.

If the alarm lamp is illuminated do not touch the liquid or the tank base, they
may be very hot. Refill carefully, a hot heater can cause a spattering of very hot
water droplets and scalding steam.

Do not touch surfaces which become hot during high temperature operation.

3.0 Safety information

3.1 Safety compliance

Grant immersion thermostats meet the requirements of international safety standard
IEC 61010: Safety requirements for electrical equipment for measurement, control, and
laboratory use. They also comply with the equivalent national standards including:

EN 61010-2-010
UL 61010A-2-010
CAN/CSA-C22.2 NO. 61010-2-010-04.

3.2 Safety symbols

The symbols below are marked on the equipment and throughout this manual to indicate:

3.3 Safety warnings

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Operating Manual Page 4

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4.0 Operating instructions

2 1 2

4.1 Unpacking instructions

Standard equipment includes:

 Immersion thermostat (T100)
 Tank (MST20) includes bridge plate with hinged lid
 Tray
 Mains cord with plug
 Operating manual

Remove packing materials carefully and retain them for future shipment or storage of the
equipment.

4.2 Fitting controller to the tank

The T100-MST20 is supplied ready assembled. For cleaning purposes instructions are
provided for attachment and removal of the T100 controller.

1. Fit the T100 through the hole in the bridge plate and align using the locating threads.
Secure using the retaining nuts (1). Hand tighten only.

2. Lower the assembly onto the slots MST20 bath so that threaded posts fit into the
fixing brackets (2). Fasten with the retaining nuts provided.

3. Fit the circulation tray in the base of the MST20 tank.

4.3 Removing the controller from the bridge plate

Allow the working liquid to cool before removing the T100 from the tank. Carefully
remove the T100 and bridge plate together from the tank by removing the retaining nuts
inside the tank. To remove the bridge plate, turn over the assembly and undo the
retaining nuts. Attach the retaining nuts to the locating threads for safe keeping.

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