The Fluke Calibration 9144A156 Field Metrology Well Temperature Calibrator with Model 9144-INSA ("A" Insert), 50 °C to 660 °C is designed to be a reliable, stable heat sources that can be used in the field or laboratory. It offers accuracy, portability, and speed for nearly every field calibration application. The instrument has been designed with the field user in mind and is easy to use while maintaining stability, uniformity, and accuracy comparable to some laboratory instruments.

The Fluke Calibration 9144-A-156 has special, built-in features that make it extremely adaptable. The exclusive Voltage Compensation allows the technician to plug into mains power without degradation to the instrument. The Ambient Temperature Compensation provides a large operating range, with an equally large, guaranteed temperature range. The Gradient Temperature Compensation keeps the axial gradient within specification over the entire temperature range of the 9144-A-156 and over the specified guaranteed operating temperature range. These combined features, along with the rugged design, light weight, and small size make this instrument ideal for field applications.

The Fluke Calibration 9144-A-156 has a unique Air Flow Design that keeps the probe handle cool, while protecting delicate instruments, as well as the user. The Block Temperature Indicator shows the user when the well temperature is above 50°C, letting the user know when it is safe to remove the insert or move the instrument. The indicator light illuminates when the instrument is energized and the well is above 50°C. If the instrument is removed from mains power, the indicator light flashes until the well has cooled to less than 50°C.

The Fluke Calibration 9144-A-156 controller uses a PRT sensor and thermoelectric modules or heaters to achieve stable, uniform temperatures throughout the block.

The LCD display continuously shows many useful operating parameters, including the block temperature, the current set-point, block stability, and heating and cooling status. For the Process version, the reference temperature and secondary input type (UUT) readings are displayed. The display can be set to show the information in one of eight different languages: English, Japanese, Chinese, German, Spanish, French, Russian, and Italian.

The Fluke Calibration 9144-A-156's rugged design and special features make it ideal for the field or the laboratory. With proper use, this instrument provides continued accurate calibration of temperature sensors and devices. Before use, the user should be familiar with the calibrator's warnings, cautions, and operating procedures as they are described in the User Manual.