One of the most important criteria for a top quality incubator shaker is precise temperature control with a low energy requirement. On top of that, to ensure reproducible cultivating results, even temperature distribution across the entire shaking tray is crucial.
Electronic, fully digital PID control incorporating a microprocessor, accurately maintains the desired temperature in Kuhner machines. The minimal energy consumption of the cooling system is regulated by an intelligent controller. True temperature distribution is achieved by using high grade foamed insulation. This complex method also ensures optimal air circulation inside the chamber.
The direct drive uses a single eccentric bearing fitted to the top of the drive so there is no possibility of internal stress between bearings. The shaking diameter can be changed at any time by altering the position of the eccentric bearing. Three shaking diameters 12.5, 25 and 50 mm are available as standard, with other settings possible on request.
||10oC above ambient
|Temperature with refrigeration
||15oC below ambient, min. +5oC
||± 0.3oC (37oC), distributed across the entire tray / XC-machines: ± 0.25oC (37oC)
Pt-100, class "A" (DIN IEC 751)
Tolerance = 0.15oC + 0.002 x ltl
t: 37oC, Tolerance = ± 0.22oC
t: 20oC, Tolerance = ± 0.19oC
Calibration of temperature sensor
Calibration is quite simple and is carried out using
- an interface and a PC with the ISIS software installed
- a temperature measuring device with sensor and certificate e.g. “TCAL 44” available from Kuhner