Lauda RE 1050 G, Руководство по эксплуатации

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ECO GOLD
30
Preparations
28.04.10/ YACE0088
Important There are different sorts of water!
−
Tap water may be unsuitable for operation due to the calcium carbonate content. There is a
risk of calcification of the stainless steel vessel.
−
High purity water (from ion exchangers) and distilled or bidistilled water are unsuitable for
operation due to the corrosive properties of these media.
Æ
High purity water and distillates
are suitable as a medium after the addition of 0.1 g of soda (Na
2
CO
3
, sodium carbonate) / li-
tre of water.
−
There is a risk of electrochemical oxidation with the use of frames of non-ferrous metals or
non-ferrous metal samples.
−
The bath vessels of the LAUDA ECO thermostats are produced in stainless steel 1.4301
and are accordingly resistant to mechanical and chemical stresses.
−
Due to the different electrochemical potentials of metals electrochemical oxidation may oc-
cur in the case of direct contact between the tank and a frame (e.g. copper) and the bath
may corrode despite the use of high quality materials for the tank.
−
TIP: Avoid the use of this type of frame or the direct contact with this sort of frame or contact
with non-ferrous metal samples and the inside of the container. Use original LAUDA
stainless steel frames and commercially available frames in temperature-resistant plastics.
6.5 Cooling the heating thermostats
At bath temperatures slightly above the room temperature (approx. 2 – 5 K) operation is possible at a
low pump level (1 or 2) without cooling. For temperatures below room temperature cooling must be used.
With an immersion thermostat: Fit the cooling coil (
Ì
6.1).
With bath and circulation thermostats the cooling coil is built in as standard.
Cooling methods
Temperatures above 20 °C:
Cooling through the water supply. Ensure the lowest possible water consumption.
Temperatures below room temperature:
A LAUDA through-flow cooler DLK 10, DLK 25, DLK 45 or DLK 45 LiBus can be connected to the pump
connections (
Ì
10). The through-flow cooler is built into the return line from the load to the thermostat.