Operating Manual
GLS Aqua Plus    29339 Ver. 3  
Operating Manual    Page 8 
  www.grant.co.uk 
EN 
5.2  Using the GLS Aqua Plus 
5.2.1  Bath controls 
5.2.2  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.  -
will cause the display to flash indicating that it can be set. 
3.  - 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 
Start/stop shaking key 










