FP51-SL
25
x
Avoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
x
Regularly check the tubing for material defects (e.g. for cracks).
x
Preventive maintenance: Replace the tubing from time to time.
5.4. Filling
/
draining
Notice:
x
Pay attention to the thermal expansion of bath oil during heating to avoid
overflowing of the liquid.
x
Do not drain the bath fluid while it is hot!
Recommendation: Temperature range 5 °C to 40 °C
Check the temperature of the bath fluid prior to draining (by switching the unit on
for a short moment, for example).
x
Store and dispose the used bath fluid according to the laws for environmental
protection.
Filling
Take care that no liquid enters the interior of the circulator.
x
Recommended maximum filling level with water as bath fluid:
30 mm below the tank rim
x
Recommended maximum filling level with bath oils:
40 mm below the tank rim
L
After filling, immerse the samples in the bath or place the lid on
the bath, in case the opening is not to be used.
L
The circulator provides an early warning system for low level
(description – please refer to page 32) that may be triggered when
changing samples in the bath.
Draining:
x
Turn off the unit and disconnect the mains cable from the power
source.
x
Hold the venting grid, pull out and remove.
x
Slide a short piece of tube onto the drain connection and hold it
into a container.
x
Loosen the drain screw a few turns and drain the unit completely.
x
Tighten the drain tap.
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