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433201A V1.5 05/07
2
Introduction
Congratulations on your purchase of the Extech 433201A (115V) or 433202A (220V)
Microprocessor Thermocouple Calibrator/Thermometer.
In the ‘Measurement’ mode, a millivolt (mV) signal is accepted from a thermocouple and
is displayed on the 4-digit LCD display. A built-in temperature offset feature can be used
to compensate for variations found in standard thermocouples. By adjusting the offset,
measurement accuracy for a particular thermocouple can be optimized for a particular
temperature.
In the ‘Source’ mode, a millivolt signal is output to an external device with the
corresponding temperature (according to standard temperature tables) displayed on the
LCD display. Preset temperature settings (source mode only) according to thermocouple
type are stored in five memory locations for easy recall.
If desired, the meter can be switched to the mV mode where Measurement and Source
values can be displayed in millivolts rather than temperature.
Careful use of this device will provide years of reliable service.