Trendnet 18-1106-33 Benutzerhandbuch
7. Detailed Description
Accurate Setting of Temperature Limit
If a more accurate temperature limit is required, for example
50 °C, follow the procedure below.
50 °C, follow the procedure below.
1.
Set the temperature limit switch to its highest value.
2.
Set the working temperature to 50 °C according to
Section 4.4.
Section 4.4.
3. Run the unit and wait until it reaches exactly 50 °C.
4. Turn the temperature limit dial very slowly anticlock-
4. Turn the temperature limit dial very slowly anticlock-
wise (temperature down) until the safety circuit is trigge-
red and the display indicates a malfunction.
red and the display indicates a malfunction.
5.
Change the working temperature setting to any value
lower than 50 °C.
lower than 50 °C.
6. Wait until the bath liquid has cooled down to below
50 °C.
7. Press the reset key.
The circulator can now be used for temperatures up to
50 °C. As soon as 50 °C is reached, the unit switches off.
50 °C. As soon as 50 °C is reached, the unit switches off.
Protecting the pump motor
When the temperature in the winding of the pump motor
reaches a certain level, the general cut-off will be activated.
This protection prevents the motor from overheating. The
following error message will be displayed.
reaches a certain level, the general cut-off will be activated.
This protection prevents the motor from overheating. The
following error message will be displayed.
. After the winding of the pump has cooled
down, the following code
is displayed.
Check the pump and wait a few minutes until the motor tem-
perature has dropped further before restarting the unit.
perature has dropped further before restarting the unit.
If this fault happens frequently, contact service personnel.
Sensor check
The temperature sensor is permanently monitored. The gene-
ral cut-off is activated if sensor breakage or current leakage is
detected. This fault is
indicated by
ral cut-off is activated if sensor breakage or current leakage is
detected. This fault is
indicated by
.
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