Pacific Sensor Technologies distributes the Fluke 1502A thermometers designed to offer accuracy up to ±0.006ºC.
Fluke 1502A thermometers can read 100-ohm, 25-ohm, and 10-ohm probes, offer a resolution of 0.001ºC across the entire range, and are the smallest units in their class. An optional battery pack is provided for complete portable operation.
Each Tweener is programmable to match a probe’s constants for maximum linearity and accuracy. All probe constants and coefficients are programmed through simple, front-panel keystrokes. Temperature is displayed in ºC, ºF, K, or resistance in ohms.
The 1502A accurately measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.
For convenience, the 1502A thermometers read the common industrial grade IEC-751 or 385 ALPHA RTD without any programming. The actual R0 and ALPHA of the individual probe must be entered for increased accuracy. Maximum accuracy is assured with the ITS-90 formulas. The Tweener accepts the sub ranges 4 and 6 through 11.
ITS-90 formulas reside in the Tweener’s firmware. If the probe has been calibrated for any of the above sub ranges of the ITS-90, once can simply enter the coefficients directly into the Tweener. Each thermometer comes complete with an RS-232 interface for automation of temperature data collection, calibrations, or process control functions. An IEEE-488 interface is available as an option.
The 1502A is calibrated digitally using the front-panel buttons. This calibration protocol further reduces the cost of the 1502A portable thermometers.