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Thermo Fisher Scientific Thermo Scientific Temp 300 User Manual

Page 13

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Thermocouple wiring polarity must be

correct. If readings decrease as the

temperature increases, the thermocouple

wires may be reversed. The red wire is

negative for thermocouple wires

manufactured in North America.

If no probe is connected the display will

read “open”.

Thermocouples are sensitive at the tip or

measuring

junction. When

taking

measurements, allow time for the reading

to stabilize. Multiplying the time constant

of the probe by 5 will give you the

approximate time required.