Anton Paar TTK 600, Reference Manual

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2 TTK 600 - An Overview
D52IB001EN-G 11
TTK 600 can be operated under vacuum or stan-
dard gases like nitrogen or air. Certain other gases
can be used as well, but the following types of gases
are not permitted:
• poisonous gases
• explosive gases
• corrosive gases
• gases which can create explosive gas mixtures
with air.
TTK 600 must not be pressurized to more than 2 bar
rel. under all operating conditions.
2.2 Operating Principle
TTK 600 uses so called direct heating/cooling to
control the temperature of the samples. Heating is
done by a resistive heater underneath the sample
holder. Cooling is provided by either compressed air
or liquid nitrogen which cools down a cryostat which
is located directly under the heater of the instru-
ment. Measurement of the temperature is done by a
thermocouple inside the heater and depending on
the actual setup a second temperature is measured
with a Pt100 which is directly integrated in the sam-
ple holder to ensure accurate temperature mea-
surement.
The following table gives an overview of the acces-
sible temperature range in dependence of the used
atmosphere and the used type of sample holder.
1 This is a nominal limit. The true limit is the dew point
temperature of the (ambient) air.
2 Observe the pressure dew point requirements for the
compressed-air given in appendix A in order to avoid
icing of the cryostat.
3 Recommended
heating rate/slope
for the
battery
sample holder transmission
: < 20 °C for the tem-
perature range < CL (cooling limit; refer to chapter
6.3.1).
The standard sample holder of the instrument is
used in reflection geometry, whereas the transmis-
sion sample holder and the capillary sample holder
are made for transmission geometry.
Standard Sample Holder
Cooling
Equipment Ambi-
ent Air
Dry Air/
N2/He
Vacuum
Liquid Nitro-
gen Cooling +25 °C
1
+450 °C
-150 °C
+450 °C
-190 °C
+600 °C
Compressed
Air Cooling +25 °C
1
+450 °C
-10 °C
2
+450 °C
-20 °C
2
+600 °C
Transmission Sample Holder
Cooling
Equipment Ambi-
ent Air
N2 Vacuum
Liquid Nitro-
gen Cooling +25 °C
1
+450 °C
-175 °C
+600 °C
-190 °C
+600 °C
Compressed
Air Cooling +25 °C
1
+450 °C
-10 °C
2
+600 °C
-20 °C
2
+600 °C
Capillary Sample Holder
Cooling Equip-
ment Ambient Air N2
Liquid Nitrogen
Cooling +25 °C
1
+450 °C
-175 °C
+600 °C
Compressed Air
Cooling +25 °C
1
+450 °C
-10 °C
2
+600 °C
Battery Sample Holder
Cooling
Equipment Ambi-
ent Air
N2 Vacuum
Liquid Nitro-
gen Cooling
3
+25 °C
1
+130 °C
-150 °C
+130 °C
-180 °C
+130 °C
Compressed
Air Cooling +25 °C
1
+130 °C
-10 °C
2
+130 °C
-15 °C
2
+130 °C