Tamson Instruments bv, van 't Hoffstraat 12, 2665 JL Bleiswijk, Netherlands
.
+31(0)10 – 522 43 73 Fax. +31(0)10 – 521 19 41
\\word\manuals\tlv25\\mantlv25.doc Date 09-2010 Rev. 1.31 UK
pag. 20 / 26
Cooling 40 litres of oil down from different
temperatures with KV40 (a,b,d,f) and without
(c,e,g)
[Ref. TV40_30A.XLS]
20.000
30.000
40.000
50.000
60.000
70.000
80.000
90.000
100.000
110.000
120.000
130.000
140.000
150.000
160.000
170.000
0
:0
0
2
:0
0
4
:0
0
6
:0
0
8
:0
0
1
0
:0
1
2
:0
1
4
:0
1
6
:0
1
7
:0
2
0
:0
Time [hrs]
T
e
m
p
e
ra
tu
re
[
°C
]
a
b
c
d
e
f
g
KV40 Cryostat
The KV40 is designed for cooling down fluid in viscometer
baths. The combination of the KV40 and our low
temperature viscosity measurement bath TLV25, allows
stable viscosity measurements at temperatures with a
minimum of minus 30
°
C.
To work at different temperatures, a microprocessor
controlled heating element inside the TLV25 system heats
the fluid against the constant cooling capacity of the KV40
cryostat.
Stable regulation of the KV40 / TLV25 combination is guaranteed for all working temperatures with a
minimum of approximately 2 degrees above the combinations’ minimum temperature. This minimum
temperature of –32’C is reached when the TLV25-heating is fully off.
The cooling probe of the system is formed by a stainless steel coil at the top of a flexible hose. This probe
can be immersed in the cooling fluid.
The KV40 - cooling power is measured in a Dewar flask containing 10 litres of methanol. All measured values
are based on a TLV25 system filled with 25 litres methanol.
The KV-system is guaranteed CFK/HCFK free.
Cooling power KV40
[Ref 40&80_2.XLS]
0
50
100
150
200
250
300
350
400
450
-40
-30
-20
-10
0
10
20
30
Temperature[°C]
P
o
w
e
r
[W
a
tt
]
