433202A

User's Guide Microprocessor Calibrator/Thermometer Models 433201A and 433202A 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. 2 433201A V1.5 05/07 Description 1. 2. LCD display – Temperature values can be displayed in C/ F or in millivolts. The adjustable display can be easily moved to the best viewing angle. POWER/MODE button – Press to power meter on/off and to select the desired mode of operation. With the meter powered on, momentarily press the POWER/MODE button (