Description
10
GA12119_002_A3 - 01/2012 - © Oerlikon Leybold Vacuum
Cold head COOLPOWER
7/25
50
Part No.
842 040
842050V0000
Compressor unit COOLPAK
2000, 2200
2000, 2200
Refrigerating capacity at 50/60 Hz
1st stage at 80 K, approx.
25 W
50 W
1st stage at 20 K, approx.
–
–
2nd stage at 20 K, approx.
7 W
–
2nd stage at 10 K, approx.
–
–
Lowest achievable
temperature, approx.
1st stage
#
35 K
#
25 K
2nd stage
#
10 K
–
Cooldown time
of 1st stage to 20 K, approx.
20 min
of 2nd stage to 20 K, approx.
20 min
Permissible ambient temperature
10-40 °C
He filling pressure
at room temperature 1)
Opening pressure
of safety valve
28 bar
He connections:
Self-sealing fittings
1/2“, m 2)
Weight excluding power cord, approx.
8 kg
Connection for mounting
on the system
Weld-on pipe
Weld-on pipe
[
130 mm
[
130 mm
Holes with a thread M4
at the copper flanges
1st stage
8
8
2nd stage
6
–
Length of power cord
to the compressor unit
–
–
Type of protection provided
by the housing
DIN/VDE Standard 0470-1
IP 52
1)
State of delivery; for filling pressure during operation refer to the Operating Instructions for the com-
pressor unit.
2)
f = female coupling, m = male coupling; Type „Aeroquip series 5400“ or compatible types
