Table of Contents
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Table of Contents
Related Manuals for Grant JB Academy Series
Summary of Contents for Grant JB Academy Series
- Page 1 Unstirred Water Baths JB Academy JB Nova SUB Aqua Pro Operating Manual www.grantinstruments.com salesdesk@grantinstruments.com JB Academy, JB Nova and SUB Aqua Pro 31394 V7 Tel: +44 (0)1763 260811 Detailed operating manual Page 1 www.grantinstruments.com...
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Page 2: Table Of Contents
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 Tel: +44 (0) 1763 260 811 Fax: +44 (0) 1763 262 410 E-mail: feedback@grantinstruments.com... - Page 3 Technical specifications Technical tips Which water should you use in your bath? Warranty information Maintenance and service 11.1 Cleaning 11.2 Fuses 11.2.1 Replacing the mains cord 11.2.2 Routine safety tests 11.3 Service Troubleshooting Compliance 13.1 WEEE directive 13.2 RoHS directive 13.3 Electrical safety and electromagnetic compatibility JB Academy, JB Nova and SUB Aqua Pro...
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Page 4: Use Of Products
4 Safety information 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:... -
Page 5: Safety Symbols
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 Safety warnings Read the whole of the instructions. - Page 6 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.
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Page 7: Operating Instructions
5 Operating instructions 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) ... -
Page 8: Operating Procedures
6 Operating procedures 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. -
Page 9: Operation Above 60°C
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 service@grantinstruments.com for information on how your bath can be reset. -
Page 10: Emptying The Baths
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. - Page 11 Important note. Baths using heat transfer beads behave differently from water baths The performance specification of Grant baths detailed in Section 9 is for water only. Performance with heat transfer beads will be significantly different. Users should refer to the bead manufacturer’s recommendations for use and performance.
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Page 12: Using The Water Bath
7 Using the water bath Using the JB Academy 7.1.1 Bath controls Alarm indicator Display Keypad lock Up, down and set keys 7.1.2 Indicators There are two indicators: Main display – used to show temperature and short messages Alarm - Flashes red when activated. A buzzer also sounds. ... -
Page 13: Enabling The Keypad Lock
7.1.4 Enabling the keypad lock The keypad lock is intended to help users avoid accidental changes to the set point temperature of the bath. To enable and disable the lock, press and hold the lock and up or down keys for three seconds as shown below Locked Unlocked... -
Page 14: Using The Sub Aqua Pro
Using the SUB Aqua Pro 7.3.1 Bath controls Alarm indicator Heater indicator Over temperature key Drain Preset keys Up, down and set keys 7.3.2 Setting the control temperature ( ) Setting the control temperature on the SUB Aqua Pro bath uses the same method as the JB Academy model. -
Page 15: Configuring And Running Temperature Presets (, ,)
You should set the over temperature value, allowing for a safety margin to the sample maximum temperature limit if possible. Additionally the limit should be greater than the bath set point to avoid nuisance alarms. Grant recommends this is at least 1°C. To set the over temperature alarm:... -
Page 16: Setting The Countdown Timer ()
Select the preset you wish to set Set the value you wish to use – in this case 70ºC Press the preset to store the value and the bath with automatically return to displaying the water temperature Figure 5 - Configuring a preset value 7.3.6 Setting the countdown timer () A countdown timer can be set in the range of 1 to 999 minutes. - Page 17 To set the countdown timer: Select the menu option Select the countdown timer menu option If a countdown timer value has already been set the display will show the value and not off. Set the value you require – in this case 10 minutes ...
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Page 18: Calibration
8 Calibration Calibration options Two calibration options exist: Single point calibration (available on all models) Dual point calibration (available on SUB Aqua Pro models only) The quality of the calibration is highly dependent on: Use of a suitable reference thermometer, ideally 10 times the accuracy you are trying to achieve. - Page 19 To configure a single point calibration: Firstly, set the bath to the desired set point and leave to stabilise for at least an hour. Place the reference thermometer either in the centre of the bath, or if using a lid, through the thermometer hole.
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Page 20: Dual Point Calibration (, )
Dual point calibration (, ) Dual point calibration is typically used on baths which are operated over a range of temperatures. Two calibration points are entered into the calibration menu: the low calibration point () and high calibration point (). These points are typically selected as just below and above the normal working temperature range for the bath. - Page 21 Firstly set the bath to the lower working temperature and allow to stabilise for at least an hour. Place the reference thermometer either in the centre of the bath, or if using a lid, through the thermometer hole. Note the value of the reference thermometer and enter it into the calibration menu by following the steps below.
- Page 22 Secondly set the bath to the upper working temperature and allow to stabilise for at least an hour. Place the reference thermometer either in the centre of the bath, or if using a lid, through the thermometer hole. Note the value of the reference thermometer and enter it into the calibration menu by following the steps below.
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Page 23: Technical Specifications
9 Technical specifications Operating conditions Ambient Temperature 5 to 40°C Maximum relative humidity 80% R.H. in room temperatures up to 31°C decreasing linearly to 50 % R.H. at 40°C Altitude above sea level Up to 2,000 m (6,500 ft) Operating Environment Indoor use only Electrical details Mains supply:... -
Page 24: Technical Tips
Technical tips Which water should you use in your bath? Use tap water with care. Water with a high lime content will cause scale build up and should be avoided. Distilled water and some types de-ionised water may be used. Avoid ultra high ... -
Page 25: Maintenance And Service
De- scaling products may be toxic and manufacturer’s instructions should always be followed. Before using any other cleaning or decontamination method, check with Grant Instruments or your local representative to make sure that the proposed method will not damage the equipment. -
Page 26: Service
11.3 Service If service is required, switch off the unit and contact Grant Instruments or your local representative for repairs. Service Department Grant Instruments (Cambridge) Ltd Shepreth Cambridgeshire SG8 6GB Tel: +44 (0) 1763 260 811 Fax: +44 (0) 1763 262 410 E-mail: labservice@grantinstruments.com... -
Page 27: Compliance
(WEEE) regulations 2013. We are a member of the B2B compliance scheme (Scheme Approval Number WEE/MP3338PT/SCH), which handle our WEEE obligations on our behalf. Grant Instruments have been issued with a unique registration number by the Environmental Agency, this reference number is WEE/GA0048TZ. - Page 28 Grant Instruments (Cambridge) Ltd Shepreth Cambridgeshire SG8 6GB Tel: +44 (0) 1763 260811 Fax: +44 (0) 1763 262410 Email: salesdesk@grantinstruments.com www.grantinstruments.com 31394 V7 /DMN P64 /2017...
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