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FRY TOP 700/900 EL/GAS
5.2 THERMOCOUPLES FLAME POSITION
Pilot flame correct alignement to TC area
5.3 AGING OF THERMOCOUPLES
Thermocouples are often used at high temperatures and in reactive furnace atmospheres. In this case, the
practical lifetime is limited by thermocouple aging. The thermoelectric coefficients of the wires in a thermocou-
ple that is used to measure very high temperatures may change with time, and the measurement voltage
accordingly drops
DEFINITION OF THERMOCOUPLE MALFUNCTION
Any state where a thermocouple is not able to produce the F.E.M. (electromotive force).
Correct «bend» / flame alignement to TC
Wrong «bend» / flame alignement to TC
F.E.M
.
A
B
THERMOCOUPLE CHARACTERISTIC
A
= turn-on time
B
= shut-down time
F.E.M.
= thermal electromotive force
Summary of Contents for A7FTEDCSI0
Page 16: ...16 FRY TOP 700 900 EL GAS GAS APPLIANCES 700 x 400mm 700 x 800mm 900 x 400mm 900 x 800mm ...
Page 39: ...39 FRY TOP 700 900 EL GAS ELECTRIC SYSTEM 700 900 ...
Page 66: ...66 FRY TOP 700 900 EL GAS 6 3 2 5 BURNER 700 900 6 3 2 6 SAFETY THERMOSTAT 700 900 ...
Page 68: ...68 FRY TOP 700 900 EL GAS 6 3 3 1 SELECTOR AND TERMOSTAT 700 900 ...
Page 70: ...70 FRY TOP 700 900 EL GAS 6 3 3 3 HEATING ELEMENT 700 900 700 900 ...
Page 71: ...71 FRY TOP 700 900 EL GAS 6 3 3 4 SAFETY THERMOSTAT 700 900 ...