Physitemp Instruments NTE2A Thermal Sensitivity Tester - Manual (Page 2)

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THERMAL SENSITIVITY TESTER, NTE-2A
1.0 GENERAL
DESCRIPTION
The NTE-2A Controller is a sophisticated testing instrument which provides a means of
accurately measuring a subject’s ability to distinguish small differences in temperature.
The thermal probe is driven by a thermoelectric (Peltier effect) module. These modules have
the unique ability to provide temperature stimuli above and below room temperature.
The temperature of the tip of probe can be adjusted using the SET DIFFERENTIAL TEMP
switch of the controller, which maintains the temperature at the set point. The digital readout
on the controller continuously indicates the actual tip temperature of the probe.
For stable operation, the thermoelectric module requires a trickle of cooling water. This is
supplied from the Pump and Tank Unit.
Although the NTE-2A is a sophisticated electronic system, it requires no technical
knowledge of the user and is designed for high reliability as well as ease of operation.