The cooling output is measured when the heat transfer liquid rea-
ches a certain temperature. These temperature values are specified
in brackets. The ambient temperature for the measurement is 20 °C
and ethanol was used as a heat transfer liquid. To measure water-
cooled devices, the cooling water temperature is 15 °C and the
cooling water dierential pressure is 3 bar.
The cooling water must be a minimum of 5
-
10 K cooler than the
ambient temperature of the device to ensure ecient cooling.
Table 38: Cooling water data
Specification Value
Maximum cooling water pressure 10 bar
Minimum dierential pressure of
cooling water (input - output) r p
0 bar
Maximum dierential pressure of
cooling water (input - output) r p
3.0 bar
Cooling water temperature
15 °C recommended, 10 to 30 °C
permitted (in upper temperature
range with reduced cooling output)
Diameter of cooling water hoses 10 mm
Cooling water hoses
Hoses with an inner diameter of 10 mm are recommended for the
nipples supplied with the device.
Table 39: Single-stage refrigerating machine
Unit RP 2040 RP 3035 RP 2045 Pump level
Cooling capacity
at 20 °C W 800 800 1500 8
at 10 °C W 800 800 1430 8
at 0 °C W 800 800 1170 8
at -10 °C W 600 580 840 8
at -20 °C W 400 350 520 4
at -30 °C W 190 160 280 4
at -35 °C W 110 100 200 4
at -40 °C W 60 --- 130 4
at -45 °C W --- --- 70 4
at -50 °C W --- --- --- ---
V6PRO bath thermostats and circulation thermostats134 / 156
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