36 / 125
ECO Silver
10/2019 i
6.4
Heat transfer liquids, cooling water and hoses
Note:
–
Tap water may be unsuitable for operation due to the calcium carbonate content. The bath vessel may calcify.
–
High purity water (from ion exchangers) and distilled or bidistilled water are unsuitable for operation due to the
corrosive properties of these media. 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) per liter of water.
–
Water containing iron (rust formation), chlorine (pitting) and untreated river water ("algae formation") is unsuit-
able.
–
The bath vessels of the LAUDA ECO thermostats are produced in stainless steel 1.4301 and are accordingly
resistant to mechanical and chemical stresses.
–
Metals have different electrochemical potentials. Therefore, in the case of direct contact between the tank and a
frame (copper for example) electrochemical oxidation may occur. The bath corrodes despite the use of high
quality materials on the tank. Avoid the use of this type of frame or direct contact with it or contact with non-
ferrous metal samples and the inside of the container. Use original LAUDA stainless steel frames or commer-
cially available frames in temperature-resistant plastics.
a) Approved heat transfer liquids
LAUDA
designation
Operating
temperature
range
Chemical
characterisation
Viscosity
(kin)
Viscosity
(kin)
at
temperature
Flash
point
Container size
Catalogue number
°C
mm²/s at
20 °C
mm²/s
°C
5 L
10 L
20 L
Kryo 51
-50 – 120
Silicone oil
5
34 at -50 °C
120
LZB 121 LZB 221 LZB 321
Kryo 30
-30 – 90
Monoethylene
glycol/water mixture
4
50 at -25 °C
119
LZB 109 LZB 209 LZB 309
Kryo 20
-20 – 170
Silicone oil
11
28 at -20 °C
170
LZB 116 LZB 216 LZB 316
Therm 160
60 – 160
Polyalkylene glycol
141
5 at 140 °C
260
LZB 106 LZB 206 LZB 306
Therm 180
0 – 180
Silicone oil
23
36 at 0 °C
250
LZB 114 LZB 214 LZB 314
Therm 250
50 – 250
Silicone oil
125
45 at 50 °C
300
LZB 122 LZB 222 LZB 322
Aqua 90
5 – 90
decalcified water
1
--
--
LZB 120 LZB 220 LZB 320
At higher temperatures vaporization losses occur. In this case use a bath cover (
9). Use distilled water or pure
demineralized water only after adding 0.1 g of soda (Na
2
CO
3
sodium carbonate) per liter of water. Otherwise
there is the risk of corrosion!
The proportion of water reduces with longer working at high temperatures and the mixture becomes flammable
(flash point 119 °C). Check the mixing ratio using a hydrometer.
Not suitable for polycarbonate baths.
–
Silicone hoses are not suitable for silicone oils!
–
EPDM hoses are not suitable for mineral oils.
Summary of Contents for ECO Silver E 10 S
Page 1: ...ECO Silver Operation manual ...
Page 2: ......
Page 4: ......
Page 78: ...78 124 ECO Silver 10 2019 i ...
Page 79: ...10 2019 i ECO Silver 79 124 ...
Page 80: ...80 124 ECO Silver 10 2019 i Appendix with settings ...
Page 111: ...10 2019 i ECO Silver 111 124 5 Click on Continue installation 6 Click on the key Finish ...
Page 113: ...10 2019 i ECO Silver 113 124 ...
Page 120: ...120 124 ECO Silver 10 2019 i Blank page ...
Page 121: ...10 2019 i ECO Silver 121 124 Blank page ...
Page 122: ...122 124 ECO Silver 10 2019 i ...
Page 125: ......
Page 126: ......
Page 127: ......