Operating Manual
GLS Aqua Plus    29339 Ver. 3  
Operating Manual    Page 2 
  www.grant.co.uk 
EN 
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  6 
4.4  Electrical supply  6 
5.0  Operating procedures  7 
5.1  Operation  7 
5.1.1  Water level  7 
5.1.2  Operation above 60°C  7 
5.1.3  Use as a thermostatic bath without shaking  7 
5.1.4  Emptying the baths  7 
5.2  Using the GLS Aqua Plus  8 
5.2.1  Bath controls  8 
5.2.2  Setting the control temperature  8 
5.2.3  Setting the shaking speed  9 
5.2.4  Starting & stopping shaking  9 
5.2.5  Setting the sample protection thermostat  9 
5.2.6  Configuring a bath preset  10 
5.2.7  Running a bath preset  10 
5.2.8  Setting a countdown period  10 
5.2.9  Cancelling the timer  11 
5.2.10  Locking & unlocking the control panel  11 
5.2.11  Single point calibration  11 
5.2.12  Twin point calibration  11 
6.0  Technical specifications  13 
7.0  Technical Tips  13 
7.1  Which water should you use in your bath?  13 
7.2  How to prevent rust in water baths  14 
7.3  How to prevent algae and bacteria?  14 
8.0  Warranty information  15 
9.0  Maintenance and service  15 
9.1  Cleaning  15 
9.2  Fuses  15 
9.2.1  Replacing fuses on GLS Aqua Plus  15 
9.2.2  Routine safety tests  16 
9.3  Service  16 
10.0  Optional accessories  16 
11.0  Troubleshooting  16 
12.0  Contact Grant Instruments  17 
13.0  Compliance  17 










