Grant SUB Aqua Plus Bedienungsanleitung

Unstirred Water Baths

SUB Aqua Plus,

JB Aqua Plus & SBB

Aqua Plus

Operating Manual

Grant Instruments,based near Cambridge, England, is an independent,

privately owned company, founded in 1951 by Peter Ward and Cecil Chapman.

Grant 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

Tel: +44 (0) 1763 260 811

Fax: +44 (0) 1763 262 410

E-mail: [email protected]

SUB, JB & SBB Aqua Plus 29825 V4

Operating Manual Page 2

www.grantinstruments.com

Contents

1.0 Use of products 3

2.0 How to use this operating manual 3

3.0 Safety information 3

3.1 Safety compliance 3

3.2 Safety symbols 4

3.3 Safety warnings 4

4.0 Operating instructions 5

4.1 Unpacking instructions 5

4.2 Assembly of the equipment and components 5

4.3 Installation 5

4.4 Electrical supply 5

5.0 Operating procedures 6

5.1 Operation 6

5.1.1 Water level 6

5.1.2 Operation above 60°C 6

5.1.3 Flat bottomed vessels 6

5.1.4 Emptying the baths 6

5.2 Using the JB Aqua Plus 7

5.2.1 Bath controls 7

5.2.2 Indicator lamps 7

5.2.3 Setting the control temperature) 7

5.2.4 Setting the sample protection thermostat 8

5.2.5 Calibration of the temperature control knob 8

5.3 Using the SUB Aqua Plus 9

5.3.1 Bath controls 9

5.3.2 Setting the control temperature 9

5.3.3 Setting the sample protection thermostat 10

5.3.4 Configuring a bath preset 10

5.3.5 Running a bath preset 10

5.3.6 Setting a countdown period 11

5.3.7 Cancelling the timer 11

5.3.8 Locking & unlocking the control panel 11

5.3.9 Single point calibration 11

5.3.10 Twin point calibration 12

5.4 Using the SBB Aqua Plus 13

5.4.1 Bath controls 13

5.4.2 Indicator lamps 13

5.4.3 Setting a controlled boil 13

5.4.4 Setting the constant level device 13

5.4.5 Resetting the over temperature cut-out devices 14

6.0 Technical specifications 14

7.0 Technical Tips 15

7.1 Which water should you use in your bath? 15

7.2 How to prevent rust in water baths 15

7.3 How to prevent algae and bacteria? 16

8.0 Warranty information 16

9.0 Maintenance and service 17

9.1 Cleaning 17

9.2 Fuses 17

9.2.1 Replacing fuses on JB Aqua Plus & SUB Aqua Plus(except SUB Aqua 34

Plus) 17

9.2.2 Replacing fuses on SBB Aqua Plus & SUB Aqua 34 Plus 18

9.2.3 Routine safety tests 18

9.3 Service 18

10.0 Optional accessories 18

11.0 Troubleshooting 18

12.0 Contact Grant Instruments 19

13.0 Compliance 19

29825 V4 SUB, JB & SBB Aqua Plus

Page 3 Operating Manual

www.grantinstruments.com

1.0 Use of products

The following products are covered by this operating manual:

JB Aqua (2, 2 Shallow, 5, 12, 18, 26 & Dual) Plus

SUB Aqua (2, 2 Shallow, 5, 12, 18, 26, 34 & Dual) Plus

SBB Aqua (5, 12, 18 & 26) Plus

The products listed above are a general purpose series of thermostatically controlled

unstirred water baths designed 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 this water bath

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 generic operating information in the first section

followed by specific operating details for the JB Aqua Plus, SUB Aqua Plus and SBB

Aqua Plus baths respectively. Product technical specifications and tips are provided in

the sections 6 and 7. The warranty for this water bath is detailed in section 8 but to

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.

A laminated quick start guide is provided with the SUB Aqua Plus and JB Aqua Plus

water baths as quick reference guide but should not be used until the full user manual

has been read.

3.0 Safety information

3.1 Safety compliance

Grant water baths 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.

SUB, JB & SBB Aqua Plus 29825 V4

Operating Manual Page 4

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3.2 Safety symbols

The symbols below are marked on the equipment to indicate:

Caution: Surfaces and water can be hot during and after use

Read this manual before using the bath

Important safety warning

3.3 Safety warnings

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

followed.

If the equipment has been transported or stored in cold or humid conditions,

condensation may form inside it. If that could have happened, allow time (at

least 2 hours at room temperature) for the condensation to evaporate before

using the equipment.

Do not use the bath to heat any material that could cause a fire or any other Do

not use the equipment in an area where there are aggressive or explosive

chemical mixtures.kind of hazard.

If a potentially hazardous liquid is spilt onto 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.

Before emptying a bath, allow the water temperature to fall to a safe level. For

18 and 26 litre baths, empty the bath before moving it.

The bath is for use only with water as the bath liquid. Make sure that it cannot become

contaminated by other liquids. We recommend the use of de-ionised water.

Before first switching on the bath please remember to fill the bath with water. Switching

the bath on dry will damage the heater and could invalidate the product warranty.

29825 V4 SUB, JB & SBB Aqua Plus

Page 5 Operating Manual

www.grantinstruments.com

4.0 Operating instructions

4.1 Unpacking instructions

Standard equipment includes:

Thermostatic bath

Mains cord with plug

Gabled polycarbonate lid (all baths except SUB Aqua 34 Plus)

Polycarbonate base tray(s) (SBB Aqua Plus baths have a metal base tray)

Operating manual

Quick start guide (JB Aqua Plus and SUB Aqua Plus baths only)

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

equipment.

4.2 Assembly of the equipment and components

The water bath has three main components, the bath, the lid and the base tray. The base

tray fits into the bath with the feet downward so that it creates a gap between the bottom

of the tank and the tray. The lid should only be lifted by the handle provided as other

parts can become hot during use. It also has a vent/thermometer hole - this hole should

not be sealed as pressure could build up inside the bath.

4.3 Installation

Place the water bath on a level, non-combustible surface. Ensure that the mains plug

and the switch are easily accessible.

4.4 Electrical supply

Check that the supply voltage marked on the serial number label, and the type of mains

plug, are correct for your mains supply outlet, which must have a ground connector.

To disconnect the equipment from the mains supply, remove the mains plug from the

mains supply outlet.

SUB, JB & SBB Aqua Plus 29825 V4

Operating Manual Page 6

www.grantinstruments.com

5.0 Operating procedures

5.1 Operation

5.1.1 Water level

Ensure that the baths are used with the appropriate base tray and that the water always

covers the tray. The maximum water level should not be higher than the swage line

around the top of the bath or around 2.5cm from the top. These criteria apply both when

there are no vessels in the bath and with the maximum contents.

Avoid letting the bath run dry. In the event this does happen, the safety cutout will trip

and disconnect the heater. If this does happen, unplug the bath and have the cut-out re-

set by a competent person.

5.1.2 Operation above 60°C

The lid must be used above 60°C to maintain proper temperature control and to ensure

that the water temperature reaches the set point

The lid will also prevent excessive evaporation that requires the bath to be filled more

often and will save energy.

5.1.3 Flat bottomed vessels

Do not place flat-bottomed vessels or other objects directly on the bottom of the tank.

Always use the base tray. This avoids possible damage to the heater mounted under the

tank. The base tray also improves temperature control.

5.1.4 Emptying the baths

Before emptying any bath allow the water temperature to fall to a safe level and take

reasonable precautions to prevent accidental spillage.

Drain taps are included in 12L and above JB Aqua Plus and SUB Aqua Plus baths to

allow convenient emptying. These baths should be emptied using the drain tap prior to

moving.

To empty the bath using the drain tap, push the supplied drain insert into the drain tap

(see picture below). Note that the water will begin to empty as soon as the drain insert is

fully engaged. A length of hose can be added to the barbed end of the drain insert if

required.

29825 V4 SUB, JB & SBB Aqua Plus

Page 7 Operating Manual

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5.2 Using the JB Aqua Plus

5.2.1 Bath controls

5.2.2 Indicator lamps

There are three indicator lights:

1. Power on (green).

2. Heater on (orange). Marked .

3. Warning (orange). Marked indicates that the temperature is being controlled by the

sample protection thermostat.

5.2.3 Setting the control temperature ()

The water temperature of the bath can be set using the larger temperature control knob.

1. Turn the knob of the sample protection thermostat fully to maximum.

2. Turn the knob of the temperature control to the desired temperature.

3. Turn on the unit using the switch on the rear of the bath and wait until the

temperature has stabilised.

4. Measure the temperature with a thermometer and adjust the temperature control

knob if necessary to obtain the desired temperature.

5. Set the sample protection thermostat as detailed below if needed.

Sample

protection

thermostat

Power on light

Heater on light

Temperature control

Warning light

SUB, JB & SBB Aqua Plus 29825 V4

Operating Manual Page 8

www.grantinstruments.com

5.2.4 Setting the sample protection thermostat

The bath is fitted with an adjustable sample protection thermostat to protect the sample.

This device is not a safety feature. The sample protection thermostat can be set to be a

few degrees above the bath set temperature.

1. Wait for the bath to stabilise at the correct temperature (can be checked with external

thermometer if needed).

2. Turn the sample protection thermostat control knob slowly anti-clockwise until an

audible ‘click’is heard (and the heater lamp goes off if it was on) and then turn it

clockwise until another audible ‘click’is heard.

In the unlikely event of failure of the primary temperature control system, the sample

protection thermostat will maintain the water in the bath at a temperature a few degrees

above the control temperature. This will be indicated by the two orange lamps cycling on

and off. If this happens, first check that the sample protection thermostat is not set to a

lower temperature than the primary control system. If that is not the reason, the main

control thermostat is not operating correctly. The bath can continue to be used without

compromising the safety of persons or the surroundings until current work is completed.

However, it is recommended to have the bath checked by a competent person as soon

as conveniently possible.

5.2.5 Calibration of the temperature control knob

If the control temperature does not match the actual water temperature measured with a

thermometer then a calibration of the control knob is required.

1. Carefully remove the temperature control knob marker to expose the adjustment

screw.

2. Use the 1.5mm Allen key supplied with the bath to loosen the adjustment screw so

that the knob can rotate on the shaft.

3. Set the knob at the bath temperature as measured by the thermometer then tighten

the adjustment screw.

4. Carefully replace the temperature control knob marker.

29825 V4 SUB, JB & SBB Aqua Plus

Page 9 Operating Manual

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5.3 Using the SUB Aqua Plus

5.3.1 Bath controls

5.3.2 Setting the control temperature ()

The water temperature of the bath can be set using the control keys.

1. Turn the knob of the sample protection thermostat to maximum.

2. Whilst the display is showing the bath temperature press either the ‘+’or ‘-’key. This

will cause the display to flash indicating that it can be set.

3. Use the ‘+’or ‘-’to set the desired temperature.

If no key is pressed for 4 seconds then the display will revert back to showing the bath

temperature and the set temperature will remain at its original value.

4. Press the enter key to store the requested value and the display will revert to showing

the bath temperature.

The water temperature will change to the new set value - during heating or cooling to

the set point the last digit will change to a rising or falling bar until the actual

temperature is within one degree of the set value

5. When the temperature has stabilised measure the temperature with a thermometer

and adjust the set temperature again if necessary.

6. Set the sample protection thermostat as detailed below if needed.

Sample

protection

thermostat

Preset keys

Display

Control keys

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