Heidolph Hei-PLATE Mix'n'Heat Expert Operating Instructions Manual page 104

Operation
The external temperature sensor is connected to the connection socket (bayonet mount)
provided at the back, see section „Device connections, interfaces" on page 81. As soon as
the double sensor is detected, a corresponding symbol appears in the area of the temperature
display:
➜
[1]: Double sensor detected, safety function [sensor monitoring] is active.
➜
[3]: [Sensor temperature] symbol replaces [Heating plate] symbol in the temperature
display.
OR
➜
[2]: External temperature sensor detected, sensor monitoring safety function deactivated
(see also section „Sensor monitoring" on page 94).
➜
[3]: [Sensor temperature] symbol replaces [Heating plate] symbol in the temperature
display.
Control and monitoring sensor positioning
Control and monitoring sensor of a double sensor unit are clearly marked.
➜
Connect the connection plug of the double sensor unit in a first step with the-pin
connection socket on the back of the magnetic stirrer.
➜
Immerse the control sensor in the liquid.
➜
Position and fix the monitoring sensor in that way that a stable reference measurement
can be performed: Heidolph Instruments' heating bath attachments have e.g. two holes in
which the sensor can be put an is fixed securely when used.
104