Heidolph 506-21100-00, Руководство по эксплуатации

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52
Operation
Calibrate the external sensor as described in section „Sensor calibration“, page 47 to
obtain correct readings and work results.
Two heating modes are available when using an external temperature sensor:
–
FASt
mode: In this mode, the heating plate is heated up quickly to the preset
temperature (factory setting).
–
PrECIS
mode: In this mode, the heating plate is heated slowly and without
overshooting to the preset temperature.
Observe the specific safety instructions for operation with external temperature sensor!
WARNING
Risk of burn
As long as the temperature sensor is not immersed in the sample,
the temperature of the ambient air is displayed. The heating plate
can therefore heat up to 300 °C unnoticed!
➜ Always immerse the temperature sensor in the sample before
switching on the device or before calibrating!
➜ Do not place heat-sensitive objects on the heating plate.
➜ Always use the necessary personal protective equipment
(heat-resistant gloves, eye protection, safety clothing) to
process samples from a temperature of 50 °C.
Procedure
➜ Ensure that the external temperature sensor is correctly connected.
➜ Switch on the device and set the heating temperature, see section „Setting the
heating temperature“, page 50.
– The device operates in the last active heating mode (
FASt
or
PrECIS
).
➜ Press the
[temperature]
control to change the heating mode if necessary (LED
ring flashes rapidly).
– Activate
FASt
mode: Press the control once and wait until the LED ring lights
up continuously.
– Activate
PrECIS
mode: Press the control twice and wait until the LED ring
lights up continuously.
➜ Immerse the external temperature sensor at least 20 mm deep in the sample to
obtain a stable reading.
– The display shows the measured temperature of the sensor: Symbol
[ext]
.
➜ Press the
[temperature]
control to activate the heating function.
– When the heating function is activated, the LED ring of the
[temperature]
control lights up orange.
➜ Press the
[temperature]
control again to turn off the heating function.