Memmert Universal ovens U, Incubators I, Sterilisers S - Manual (Page 28)

28 D24022 | Date 10/2014
Operation and control
5.5.1 Electronic temperature monitoring
The monitoring temperature of the electronic temperature monitoring is measured via the
Pt100 temperature sensor in the interior of the chamber. The type of temperature monitoring
(TWW/TWB) and the monitoring temperature are set in menu mode in the Setup display (see
page 37). The setting made applies to all operating modes.
If the manually set monitoring temperature is exceeded, temperature monitoring takes over
temperature control and begins to regulate the monitoring temperature (TWW, Fig. 16) or
switches off the heating (TWB, Fig. 17).
The two types of temperature monitoring are only available for appliances equipped with
a second temperature sensor (option A6). For appliances with only one temperature
sensor, only TWW is available.
t
°C
Setting Max Alarm
Set temperature
Controller error
Emergency operation
Fig. 16 Schematic diagram of how the TWW temperature monitoring system works
t
°C
heating switched off by TWB
Setting Max Alarm
Set temperature
Controller error
Fig. 17 Schematic diagram of how the TWB temperature monitoring works (only if equipped
with a second temperature sensor, option A6)
Fig. 17 Fig. 17 Schematic diagram of how the TWB temperature monitoring works (only if equipped Schematic diagram of how the TWB temperature monitoring works (only if equipped