Grant JB Academy Series User manual

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
Detailed operating manual Page 1
www.grantinstruments.com
Unstirred Water Baths
JB Academy
JB Nova
SUB Aqua Pro
Operating Manual
www.grantinstruments.com
[e-mail]
Tel: [phone]

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
Detailed operating manual Page 2
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If you have any feedback on Grant’s products or services we would like to hear from you.
Please send all feedback to:
Grant Instruments (Cambridge) Ltd
Shepreth
Cambridgeshire
SG8 6GB
UK
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Contents
1 Use of products 4
2 How to use this operating manual 4
3 Product registration and warranty 4
4 Safety information 4
4.1 Safety compliance 4
4.2 Safety symbols 5
4.3 Safety warnings 5
5 Operating instructions 7
5.1 Unpacking instructions 7
5.2 Assembly of the equipment and components 7
5.3 Installation 7
5.4 Electrical supply 7
6 Operating procedures 8
6.1 Operation 8
6.1.1 Water level 8
6.1.2 Operating the bath without water (,) 8
6.1.3 Operation above 60°C 9
6.1.4 Flat bottomed vessels 9
6.1.5 Allowing the bath to run dry ( ) 9
6.1.6 Emptying the baths 10
6.1.7 Using the SAPD bath 10
6.1.8 Using the bath with heat transfer beads () 10
7 Using the water bath 12
7.1 Using the JB Academy 12
7.1.1 Bath controls 12
7.1.2 Indicators 12
7.1.3 Setting the control temperature () 12
7.1.4 Enabling the keypad lock 13
7.2 Using the JB Nova 13
7.2.1 Bath controls 13
7.2.2 Setting the control temperature () and keypad lock 13
7.3 Using the SUB Aqua Pro 14
7.3.1 Bath controls 14
7.3.2 Setting the control temperature () 14
7.3.3 Enabling the keypad lock 14
7.3.4 Setting the over temperature protection () 14
7.3.5 Configuring and running temperature presets (, ,) 15
7.3.6 Setting the countdown timer () 16
8 Calibration 18
8.1 Calibration options 18
8.2 Single point calibration (and ) 18
8.3 Dual point calibration (, ) 20

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
Detailed operating manual Page 3
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9 Technical specifications 23
Technical tips 24
9.1 Which water should you use in your bath? 24
10 Warranty information 24
11 Maintenance and service 25
11.1 Cleaning 25
11.2 Fuses 25
11.2.1 Replacing the mains cord 25
11.2.2 Routine safety tests 25
11.3 Service 26
12 Troubleshooting 26
13 Compliance 27
13.1 WEEE directive 27
13.2 RoHS directive 27
13.3 Electrical safety and electromagnetic compatibility 27

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
Detailed operating manual Page 4
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1 Use of products
The following products are covered by this operating manual:
JB Academy range:
JBA5, JBA5 AUS, JBA5 US, JBA12, JBA12 AUS, JBA12 US, JBA18 & JBA18 AUS, JBA18 US
JB Nova range:
JBN5, JBN5 AUS, JBN5 US, JBN12, JBN12 AUS, JBN12 US, JBN18, JBN18 AUS, JBN18 US,
JBN26, JBN26 AUS & JBN26 US
SUB Aqua Pro range:
SAP2, SAP2 AUS, SAP2 US, SAP2S, SAP2S AUS, SAP2S US, SAP5, SAP5 AUS, SAP5 US,
SAP12, SAP12 AUS, SAP12 US, SAP18, SAP18 AUS, SAP18 US, SAP26, SAP26 AUS, SAP26
US, SAP34, SAP34 AUS, SAP34 US, SAPD, SAPD AUS & SAPD US
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 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.
If there is a technical matter that this operating manual does not address, or any other
questions concerning this product, please contact Grant Instruments or your local
distributor who will be able to provide any additional information.
3 Product registration and warranty
The warranty for this water bath is detailed in section 10 and to register you should
complete the on-line registration form at www.grantinstruments.com. Not registering
your product may affect your warranty.
4 Safety information
4.1 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.

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4.2 Safety symbols
The symbols below are marked on the equipment and in this manual to indicate:
Caution: Surfaces and water can be hot during and after use
Read this manual before using the bath
Important safety warning
Recommended operation
Failure to follow may affect the performance of the equipment
4.3 Safety warnings
Read the whole of the instructions. Safety may be impaired if they are not
followed.
Surfaces and water can be hot during and after use. Before emptying a bath,
allow the water temperature to fall to a safe level. For 12, 18, 26, dual & 34
litre baths, empty the bath before moving it.
This bath is only intended for use with water or metallic heat transfer beads.
Use of other fluids or heat transfer media may invalidate the warranty and
present a risk of fire or explosion.
The tray must be removed when using heat transfer beads.
Place on a stable flat surface to reduce the risk of accidental spillage.
No user serviceable parts. Risk of electric shock after disassembly or
operation with covers removed.
Not for use in environments with a risk of flammable or explosive gases.
To be operated within the limits listed in this guide
Only use the mains cord provided or one with an identical rating. Ensure that
the mains plug and the switch are easily accessible.
A clearance of >10cm around the bath is required to ensure adequate air
flow.
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.
Clean the outside of the equipment with a damp cloth, using water and
domestic cleaning products only. The use of other chemical cleaning agents
may damage the equipment. Always follow the manufacturer’s instructions
and any applicable legislation about the use of potentially hazardous
substances.

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
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To preserve your water bath in peak condition consult the extra guidance
listed below. Failure to do so may affect your warranty. Consult online
resources for additional important information.
For optimum performance prevent tray from touching bath sides.
Before first switching on the bath please remember to fill the bath with water.
Switching the bath on dry can damage the heater and could invalidate the
product warranty.
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.
When operating the bath in high ambient temperatures (> 30°C) the
temperature of the water used to fill the bath should be no more than 10°C
below the ambient.

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
Detailed operating manual Page 7
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5 Operating instructions
5.1 Unpacking instructions
Standard equipment includes:
 Thermostatic water bath
 Mains cord with plug
 Gabled polycarbonate lid (excludes JB Academy, no lid supplied and SAP34,
stainless steel lid supplied)
 Polycarbonate base tray(s) (excludes SAP34, stainless steel base tray)
 Short user guide
Remove packing materials carefully, and retain for future shipment or storage of the
equipment.
5.2 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.
For optimum temperature stability, avoid allowing the base tray to touch
the sides of the tank when using water.
The base tray must be removed when using heat transfer beads
The lid should only be lifted by the handle, 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.
5.3 Installation
Place the water bath on a level, non-combustible surface. Ensure that the mains plug
and the switch are easily accessible.
5.4 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 connection.
To disconnect the equipment from the mains supply, remove the mains plug from the
mains supply outlet.

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
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6 Operating procedures
6.1 Operation
6.1.1 Water level
The bath will provide optimum performance when filled to the swage line which is
typically 25mm below the top of the tank.
Do not fill above the swage line.
The water level used in the tank will influence the temperature accuracy and stability.
Using liquid levels below the swage line needs consideration, especially when operating
at higher water temperatures (>50ºC) and without a lid. We recommend the following
minimum fill levels
Tanks size Recommended
min % fill
Approximate water
depth (mm)
2LS
80%
32
2L
40%
50
5L
50
12L
50
18L 50
26L
70
34L 70
Table 1 - Recommended minimum fill levels
When using a larger bath with vessels which only require a shallow immersion, we
recommend filling the bath as close to the swage line as possible and using raised
shelves in the bath to elevate the vessel to the desired immersion depth.
6.1.2 Operating the bath without water (,)
Do not attempt to use your bath without water in the tank. The bath has an inbuilt
protection mechanism known as dry start protection which will detect this condition in
most circumstances and prevent the bath from continuing to heat. In this instance the
bath will display  and sound an alarm.
The tank internal surface can become very hot if an accidental dry start
has occurred, even if the dry start cut out has operated. Avoid touching
the tank until it has been left to cool for several minutes.
Once you have filled the bath, you will need to switch the bath off and on in order to
resume operation.
Repeated dry starting of the bath stresses key components in the bath
which can affect service life and the equipment’s warranty.

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
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The bath also includes an independent safety temperature cut-out which will protect the
bath in the unlikely event of a fault or if the dry protection alarm is switched off (see
section 6.1.5). If the cut-out is activated then the bath will stop heating, show  on the
display and sound an alarm. The bath should be switched off, unplugged and allowed to
cool for at least 30 minutes. Contact Grant at [e-mail] for
information on how your bath can be reset.
6.1.3 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.
6.1.4 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.
6.1.5 Allowing the bath to run dry ( )
Always take care to avoid allowing the water to evaporate to the point that the bath runs
dry. This can lead to the bath’s internal safety cut-out operating. In this situation the
display will show  and sound an alarm. Contact Grant at
[e-mail] for information on how your bath can be reset.
The bath has a built-in advanced detection mechanism to greatly reduce the chances of
the safety cut out occurring in most circumstances where the bath is left to accidentally
run dry. This feature is only enabled automatically when the following criteria are met:
 The set temperature is >50°C
 The bath has been operating for a least one hour
 The water is not set to boiling point (>=99ºC)
If the bath detects signs that the bath water level may be becoming low, it will alert the
user by displaying  and sounding an alarm
Once you have checked the water level and topped up the water level as necessary you
will need to switch the bath off and on in order to resume operation.
For users with specialist applications where this feature maybe unnecessarily triggered it
can be disabled. Press the set key to enter the bath menu and use the arrow keys to
select  (Dry Protection Alarm). Press the set key and use the arrow keys to select off.
Use the set key to confirm that the dry start and run dry protection are switched off.

JB Academy, JB Nova and SUB Aqua Pro 31394 V7
Detailed operating manual Page 10
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6.1.6 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.
Larger baths have drain taps to make emptying easier.
To empty the bath using the drain tap, push the supplied drain insert into the drain tap.
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.
6.1.7 Using the SAPD bath
The SAPD bath provides two baths side by side that will control at different temperatures
independently of each other. The difference between the temperatures of the two baths
should be kept to less than 30ºC to ensure specified bath performance.
The set temperature difference between the baths can be greater than 30ºC but the
following should be taken into account:
 Setting a higher temperature on the smaller bath will reduce energy use and
ensure optimum bath performance
 Each bath may require additional time for temperature stabilisation (particularly
the lower temperature bath)
 Each bath temperature should be verified with an independent thermometer to
ensure accuracy is fit for purpose (particularly the lower temperature bath)
If only one of the baths is in use then the performance will be as specified.
6.1.8 Using the bath with heat transfer beads ()
SUB Aqua Pro and JB Nova baths excluding SAP2 and SAP2S, can be set up to operate
with heat transfer beads as an alternative to water.
This feature is not available on JB Academy or older SUB Aqua Pro and JB Nova models
which do not have the heat transfer beads () selection menu.
The base tray must be removed when using heat transfer beads
.
Configure the bath using the Heat transfer selection menu as follows: