Fluke Calibration 9103 and 9140 Dry-Well Temperature Calibrators offer accuracy, portability, and speed for nearly all field temperature calibration applications. These lightweight, compact units are packed with functionality and are remarkably easy to use, reaching temperature set points quickly while maintaining stability, uniformity, and precision .

The 9103 covers a low range from -25°C to 140°C, with stability of ±0.02°C at -25°C and ±0.04°C at 140°C. It can reach 0°C in just 8 minutes and 100°C in 6 minutes . The 9140 covers 35°C to 350°C with stability of ±0.03°C at 50°C and ±0.05°C at 350°C, reaching maximum temperature in only 12 minutes .

Both units feature interchangeable inserts to accommodate probes from 1/16 inch to 1/2 inch diameter. Multiple insert options include types for single probes, dual-well comparison calibrations, and multi-probe calibrations. The heating and cooling speeds can be adjusted from the front panel, and automated thermostatic switch testing is supported .

Each unit is factory-calibrated and includes NIST-traceable calibration data. The optional "process" version provides a built-in readout for resistance, voltage, and 4-20mA current, along with 24V loop power and on-board documentation capabilities.