TA I
NSTRUMENTS
TGA 2950
3–5
Calibrating the TGA
To obtain accurate experimental results you
should calibrate the instrument when you first
install it. For the best results, however, you
should recalibrate periodically.
Three types of calibration are needed for the
TGA 2950: temperature, weight, and sample
platform calibration. All three calibration
procedures are performed through the Instru-
ment Control software. This section provides a
brief description of these types of calibration, for
details refer to the online help and documents.
Temperature
Calibration
Temperature calibration is useful for TGA
experiments in which precise transition
temperatures are essential. To temperature
calibrate the TGA, you need to analyze a high-
purity magnetic standard for its curie tempera-
ture, and then enter the observed and correct
values in the
temperature calibration table (see
the online help and documentation for further
information). The standard most often used is
nickel with a curie temperature of 354.4°C
(NIST Certificate for GM761). The observed
and correct temperatures correspond to the
experimental and theoretical transition tempera-
tures (
e.g
., curie temperature) of the calibrant.
From one to five temperature calibration points
(pairs of observed and correct temperature
points) can be entered in the calibration table.
A multiple-point calibration is more accurate than
a one-point calibration.
Calibrating the TGA
Summary of Contents for TGA 2950
Page 20: ...TA INSTRUMENTS TGA 2950 xx ...
Page 22: ...Introducing the TGA 2950 TA INSTRUMENTS TGA 2950 1 2 ...
Page 36: ...TA INSTRUMENTS TGA 2950 Installing the 2950 2 2 ...
Page 90: ...Running Experiments TA INSTRUMENTS TGA 2950 3 24 ...
Page 92: ...Technical Reference TA INSTRUMENTS TGA 2950 4 2 ...
Page 112: ...Technical Reference TA INSTRUMENTS TGA 2950 4 22 ...
Page 136: ...TA INSTRUMENTS TGA 2950 Maintenance and Diagnostics 5 24 ...
Page 142: ...Appendix B B 4 TA INSTRUMENTS TGA 2950 ...
Page 152: ...Appendix B B 14 TA INSTRUMENTS TGA 2950 Figure B 2 Figure B 3 ...
Page 153: ...TA INSTRUMENTS TGA 2950 B 15 Hi ResTM Option Figure B 4 Figure B 5 ...
Page 169: ...TA INSTRUMENTS TGA 2950 B 31 Hi ResTM Option Figure B 7 Figure B 8 ...
Page 188: ...Appendix B B 50 TA INSTRUMENTS TGA 2950 Figure B 11 Sensitivity Setting Too High ...
Page 205: ...TA INSTRUMENTS TGA 2950 B 67 Hi ResTM Option Figure B 16 Figure B 17 ...
Page 211: ...TA INSTRUMENTS TGA 2950 B 73 Hi ResTM Option Figure B 22 Figure B 23 ...
Page 212: ...Appendix B B 74 TA INSTRUMENTS TGA 2950 Figure B 24 Figure B 25 ...
Page 214: ...Appendix B B 76 TA INSTRUMENTS TGA 2950 ...
Page 216: ...Appendix C TA INSTRUMENTS TGA 2950 C 2 ...
Page 218: ...Appendix C TA INSTRUMENTS TGA 2950 C 4 Figure C 1 Auto TGA ...
Page 236: ...Appendix D TA INSTRUMENTS TGA 2950 D 2 ...
Page 258: ...Appendix D TA INSTRUMENTS TGA 2950 D 24 ...
Page 264: ...Index TAINSTRUMENTSTGA2950 I 6 ...
