22 03/2021
Operation and control
5.4 Outlet valve
The drain valve can become overheated while emptying the water bath. Touching its
surface can cause burns. Use heat-resistant protective gloves to turn the drain valve
on/off or let the tempering medium cool down rst and empty the water bath when it
has reached a lukewarm temperature.
Observe the following points before emptying the water bath:
■ Allow tempering medium to cool down before draining
■ Outlet valve can overheat during operation, please observe safety instructions
■ Open outlet valve slowly to prevent water from leaking out uncontrolled
When emptying the water bath, let the tempering medium drain either directly into a
suitable and adequately sized container or push a suitable tube onto the outlet valve
(outlet valve diameter: 12 mm), which hooks into a container.
5.5 Calibration
The appliances are temperature calibrated and adjusted at the factory. In case read-
justment should be necessary later on – for example due to inuence of the chamber
load – the appliance can be calibrated customer-specically using two calibration tem-
peratures of your choice:
■ Cal1 Temperature calibration at low temperature
■ Cal2 Temperature comparison at high temperature
To guarantee perfect control, we recommend calibrating the appliance once a year.
CAL 1
+1,6°C
CAL 2
-0,4°C
Factory calibration
50°C 100°C
0°C
30°C
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