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1566g GB/2019-02
1
electronic GmbH & Co. KG • Heinrichstraße 3-4 • 12207 Berlin • Deutschland • [email protected]
3.1.2
Heating
The heating system is operated with the key temperature preselection.
After switching on the ultrasonic bath the green LED “0” is illuminated.
• Set the target temperature via keypress
Temperature range 20-80 °C
- target temperature
= lighting, yellow LED.
- actual temperature
= blinking, yellow LED.
Above the adjusted target temperature LED is blinking
slowly (= heating is off), below the target temperature
LED is blinking quickly (= heating is on).
- When the actual temperature is equal to the target temperature,
only the LED of the target temperature lights up.
The LED „!” will blink red when temperature exceeds 80 °C.
- Switch off heating manually:
Press temperature preselection key longer than 2 sec.
The green LED “0” is illuminated.
Notes
• The heating system works independently from the ultrasound.
• Last selected temperature will not be stored.
When switching on the ultrasonic bath again (ON/OFF) the target temperature “0” is given.
• The heating will automatically turn on every time that the bath temperature drops below the set
temperature.
• The display accuracy of the temperature scale is ± 2,5 °C.
The red LED is triggered at around 80 °C + 5K.
• The heat automatically switches off to protect the ultrasonic bath from overheating.
The ultrasonic bath will need to cool down suf
fi
ciently (water temperature around 50 °C) and be
disconnected from the mains power brie
fl
y before it can be used again.
• Ultrasound energy warms up the sonication
fl
uid (even without additional heating).
- In case of continuous sonication and/or covering the oscillating tank, the
fl
uid temperature
will increase, even rising above the value set on the thermostat. For this reason, check the
temperature when treating temperature-sensitive components.
- Non-aqueous
fl
uids can heat up many times faster than water. A possible
fl
ashpoint can be
reached and/or exceeded after a very short sonication time. In the case of high-boiling liquids
(with and without a
fl
ashpoint), the bath temperature can increase to >120 °C due to the
energy input of the ultrasound. This leads to irreparable damage to the ultrasonic bath.
Avoid retardation of boiling
When a temperature is set, the unit will immediately try to reach the selected temperature.
When heating (without ultrasound) switched on ultrasound will be automatically switched on once
during 3 seconds every minute for mixing the liquid and thus avoiding retardation of boiling.
-
This function is always active with temperatures > 60 °C and cannot be deactivated!
-
The function can be activated for temperatures < 60 °C. It must be activated again after
each switch-on: activation of the function:
Press the key temperature preselection while at the same time switching on the
unit (ON/OFF).