Lauda E 4 G Operating Instructions Manual page 32

a) Approved heat transfer liquids
Operating
LAUDA
temperature
designation
range
°C
Kryo 51 -50...120
Kryo 30 -30...90
Kryo 20 -20...180
Therm 180 0...180
Aqua 90 5...90
Ultra 350 30...200
Therm 240 50...240
Therm 200 60...200
At higher temperatures vaporization losses occur. In this case use a bath cover (
demineralized water only after adding 0.1 g of soda (Na
is the risk of corrosion!
The proportion of water reduces with longer working at high temperatures and the mixture becomes flammable
(flash point 128 °C). Check the mixing ratio using a hydrometer.
Do not use in conjunction with EPDM hose.
Never use silicone oil with silicone hoses.
EPDM hose is not suitable for Ultra 350 nor for mineral oils.
−
When choosing the heat transfer liquid, it must be noted that at the lower limit of the operating tempera-
ture range impairment of the heat transfer properties is to be expected due to the increasing viscosity.
Therefore, only use the full operating temperature range where necessary.
−
The working ranges of the heat carrier liquids and hoses are general figures which can be tightened due
to the operating temperature range of the devices.
−
Never use contaminated heat transfer liquids. Contamination of the pump chamber may lead to the pump
jamming and the device then switching off.
−
Pay attention to the safety data sheet for the heat transfer liquid.
−
Follow the regulations for disposal of the used heat transfer liquid.
If required, you can request the safety data sheets at any time. (
32
Viscos-
Chemical
designation
(kin)
mm²/s at
20 °C
Silicone oil
Monoethylene
glycol /
water
Silicone oil
Silicone oil
Decalcified water
Synth. heat carrier
Silicone oil 125
Silicone oil
Before putting the device into operation
Viscosity
ity (kin) at
temperature
mm²/s
5 34 at -50 °C
4 50 at -25 °C
11 28 at -20 °C
23 36 at 0 °C
1 --
47 28 at 30 °C
45 at 50 °C
54 28 at 60 °C
CO sodium carbonate) per liter of water. Otherwise there
2 3
8.7)
ECO GOLD
Fire Container size
point Catalogue number
°C 5 L 10 L
> 160 LZB 121 LZB 221 LZB 321
-- LZB 109 LZB 209 LZB 309
> 230 LZB 116 LZB 216 LZB 316
> 288 LZB 115 LTB 214 LZB 314
-- LZB 120 LZB 220 LZB 320
240
LZB 107 LZB 207 LZB 307
378
LZB 122 LZB 222 LZB 322
362
LZB 117 LZB 217 LZB 317
9). Use distilled water or pure
25/08/2011/ YACE0088
20 L