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. 23 / 26
KV80 Cryostat
The KV80 is designed to cool down fluids. The combination of
the KV80 and our low temperature viscosity measurement bath
TLV25, allows very stable viscosity measurements at low
temperatures.
To work at different temperatures, a microprocessor controlled
heating element inside the TLV25 system heats the fluid against
the constant cooling capacity of the KV80 cryostat.
Stable regulation of the KV80 / TLV25 combination is
guaranteed for all working temperatures with a minimum of
approximately 2 degrees above the combinations minimum
temperature. This minimum temperature is reached when the
heating from the is TLV25 fully off and lies around minus 65
°
C.
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.
Temperatures mentioned here have been measured with
methanol. The KV80 cooling capacity has been measured in a
Dewar flask with 10 litres of methanol.
The KV-system is guaranteed CFK/HCFK free.
Technical Specs KV80
Item
Unit
KV80
Body
Stainless Steel
Hose length
[mm]
2500
Probe length
[mm]
190
Probe diameter
[mm]
47
Length
[mm]
560
Width
[mm]
450
Height
[mm]
500
Weight
[kg]
60
Power
[Watt]
1200
Voltage
[Volt]
230
115 on request
Using the KV for other cooling purposes
The KV40 can also be used to provide cooling power in a specific process. Examples are cooling down
liquids more rapidly or lower temperature of a specific process.
The cold finger can be used for this purpose as a “cold spot”. In fluids the finger can be immersed or the
finger can be mounted just to cool down gas in a process.
It is important not to continuously heat the cold finger. Immersing the finger in fluids of over 100
°
C for a
period over 2 hours will harm the compressor. The pressure of the cooling gas inside the finger will raise
dramatically due to these high temperatures. This raise in pressure causes the compressor to work harder
and heat up. Overheating on the long term can overheat and severely damage the cold finger on the long
term.
