Preparations
5.
Preparations
5.1.
Installation
•
Place the unit on an even surface on a pad made of
non-flammable
material.
F34: The circulator fitted with a stainless steel bridge is placed on on
the back of the bath tank leaving the bath open on the front side.
•
The place of installation should be large enough and provide
sufficient air ventilation to ensure the room does not warm up
excessively because of the heat the instrument radiates to the
environment. (Max. permissible ambient temperature: 40 °C).
With regard to a disturbance in the cooling loop (leakage), the
guideline EN 378 prescribes a certain room space to be available for
each kg of refrigerant.
The necessary amount of refrigerant is specified on the type plate.
> For 0.25 kg of refrigerant R134a, a room space of 1 m
3
is required.
> For 0.52 kg of refrigerant R404A, a room space of 1 m
3
is required.
> For 0.49 kg of refrigerant R507, a room space of 1 m
3
is required.
•
Set selector dial for cooling machine (19) in position "1" for operation
with ME circulator.
(only F25, F26, F34)
•
Keep at least 20 cm of open space on the front and rear venting grid.
•
Do not set up the unit in the immediate vicinity of heat sources and
do not expose to sun light
•
Before operating the unit after transport, wait about one hour after
setting it up. This will allow any oil that has accumulated laterally
during transport to flow back down thus ensuring maximum cooling
performance of the compressor.
•
Ensure circulation of cooling water by connecting the tubing to
cooling water inlet and outlet on the rear of the refrigerated circulator.
Cooling water see page 13
5.2. Bath fluids
Caution:
Carefully read the safety data sheet of the bath fluid used, particularly with regard to
the fire point!
If a bath fluid with a fire point of
≤
65 °C is used, only supervised operation is possible.
Water:
The quality of water depends on local conditions.
•
Due to the high concentration of lime, hard water is not suitable for temperature
control because it leads to calcification in the bath.
•
Ferrous water can cause corrosion - even on stainless steel.
20
