Fluke - Hart Scientific 1502A and 1504 Tweener
Thermometer readouts for RTD, PRT and Thermistor Sensors
Usually ships in 2-3 weeks
- Manufactured by Fluke / Hart Scientific
- Two models to choose from reading PRTs or thermistors
- Battery packs available
- Best price/performance package
The Fluke - Hart Scientific Tweener thermometer readouts consists of two models - the 1502A and 1504. No other thermometer comes close to the performance and features of the Fluke Tweener thermometer readouts for anywhere near the price.
Hart Scientific 1502A Tweener PRT Readout
The Hart Scientific 1502A Tweener PRT readout features accuracy up to ±0.006°C. In addition, it reads 100-ohm, 25-ohm, and 10-ohm probes, has a resolution of 0.001°C across its entire range, and is the smallest unit in its class. The Hart Scientific 1502A Tweener PRT readout also has an optional battery pack for completely portable operation.
Each Hart Scientific 1502A Tweener PRT readout 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 °C, °F, K, or resistance in ohms.
The Hart Scientific 1502A Tweener PRT readout accurately measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.
For convenience, the Hart Scientific 1502A Tweener PRT readout reads the common industrial grade IEC-751 or "385" ALPHA RTD without any programming. Enter the actual R0 and ALPHA of the individual probe for increased accuracy. For maximum accuracy, use the ITS-90 formulas. The Hart Scientific 1502A Tweener PRT readout accepts the subranges 4 and 6 through 11.
ITS-90 formulas reside in the Tweener's firmware. If your probe has been calibrated for any of the above subranges of the ITS-90, you simply enter the coefficients directly into the Hart Scientific 1502A Tweener PRT readout.
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 Hart Scientific 1502A Tweener PRT readout is calibrated digitally using the front-panel buttons. You never have to open the box to calibrate it. This calibration protocol further reduces the cost of the 1502A. It goes where you go and works the way you want it to.
Hart Scientific 1504 Tweener Thermistor Readout
If you need more accuracy in a limited temperature range, the Hart Scientific 1504 Tweener thermistor readout gives it to you as a thermistor readout. Thermistors are less fragile than PRTs and less likely to be impacted by mechanical shock. Thermistors are more sensitive to temperature, have faster response times, and come in many shapes for different applications.
Typical accuracy of the Hart Scientific 1504 Tweener thermistor readout is ±0.002°C with a resolution of 0.0001°C.