Chemglass CG-1993-T - Manual (Page 11)

6.1 Working with the PT1000 external
temperature sensor
Figure 6
The PT1000 external temperature sensor is the
manufacturer’s optional accessory. If the sensor is plugged
in, “Probe” will be shown on the digital display to indicate
the sensor is operating. The setting value of external
temperature sensors and actual temperature are displayed.
The safety circuit controls hotplate temperature.
Comparing with the temperature control of the hotplate, the
external temperature sensor can control the medium’s
temperature more precisely. The external temperature
sensor must be put in sample container, if detect anomalies,
heating will automatically shut down. Please do the
following at this time:
• Turn off the power
• Ensure the external temperature sensor is positioned
sample container correctly
• Turn on the power, set the target temperature and
switch on the heating function
• If the unit is still not functioning correctly, please
contact manufacturer/supplier
6.2 Residual heat warning（HOT）
In order to help prevent the risk of burns from the hotplate,
this instrument has a residual heat warning function. When
the heating function is switched off (and the power cord is
still plugged in) and the heating plate temperature is still
above 50°C, “Hot” will flash to warn that it is unsafe to
touch.. When the hotplate temperature drops to below 50°C,
the display will automatically switch off. To completely
turn off the unit, pull out the plug. When the plug is pulled
out, the residual heat warning function will not function.