TA I
NSTRUMENTS
TGA 2950
5–17
Fuse 1 is in the circuit between the main electri-
cal input and the
POWER
switch. All power for
internal operations and instrument functions,
except heater power, passes through this fuse. If
this fuse blows, you will get no response from
the instrument when you attempt to turn it on.
Fuse 2 protects the heater coils in the furnace.
Because fuse 2 does not power the internal
logic, you may not know that this fuse is blown
until you try to heat a sample; the TGA passes
the confidence test with fuse 2 open.
Fuse 2 is always checked at the beginning of a
method. Power supplied by this circuit is
switched by a computer-controlled relay as well
as by the
HEATER
switch located on the
instrument’s front panel. When both devices are
active, the light in the
HEATER
switch will
glow.
Diagnosing Power Problems
Содержание TGA 2950
Страница 20: ...TA INSTRUMENTS TGA 2950 xx ...
Страница 22: ...Introducing the TGA 2950 TA INSTRUMENTS TGA 2950 1 2 ...
Страница 36: ...TA INSTRUMENTS TGA 2950 Installing the 2950 2 2 ...
Страница 90: ...Running Experiments TA INSTRUMENTS TGA 2950 3 24 ...
Страница 92: ...Technical Reference TA INSTRUMENTS TGA 2950 4 2 ...
Страница 112: ...Technical Reference TA INSTRUMENTS TGA 2950 4 22 ...
Страница 136: ...TA INSTRUMENTS TGA 2950 Maintenance and Diagnostics 5 24 ...
Страница 142: ...Appendix B B 4 TA INSTRUMENTS TGA 2950 ...
Страница 152: ...Appendix B B 14 TA INSTRUMENTS TGA 2950 Figure B 2 Figure B 3 ...
Страница 153: ...TA INSTRUMENTS TGA 2950 B 15 Hi ResTM Option Figure B 4 Figure B 5 ...
Страница 169: ...TA INSTRUMENTS TGA 2950 B 31 Hi ResTM Option Figure B 7 Figure B 8 ...
Страница 188: ...Appendix B B 50 TA INSTRUMENTS TGA 2950 Figure B 11 Sensitivity Setting Too High ...
Страница 205: ...TA INSTRUMENTS TGA 2950 B 67 Hi ResTM Option Figure B 16 Figure B 17 ...
Страница 211: ...TA INSTRUMENTS TGA 2950 B 73 Hi ResTM Option Figure B 22 Figure B 23 ...
Страница 212: ...Appendix B B 74 TA INSTRUMENTS TGA 2950 Figure B 24 Figure B 25 ...
Страница 214: ...Appendix B B 76 TA INSTRUMENTS TGA 2950 ...
Страница 216: ...Appendix C TA INSTRUMENTS TGA 2950 C 2 ...
Страница 218: ...Appendix C TA INSTRUMENTS TGA 2950 C 4 Figure C 1 Auto TGA ...
Страница 236: ...Appendix D TA INSTRUMENTS TGA 2950 D 2 ...
Страница 258: ...Appendix D TA INSTRUMENTS TGA 2950 D 24 ...
Страница 264: ...Index TAINSTRUMENTSTGA2950 I 6 ...