The Fluke Calibration 9103-A-156 Field Dry-Well Temperature Calibrator with Model 3103-2 ("A" Insert), -25 °C to 140 °C may be used as a portable instrument or bench top temperature calibrator for calibration thermocouples and RTD temperature probes. The 9103-A-156 is small enough to use in the field and accurate enough to use in the lab. With an ambient temperature of 23°C (74°F), calibrations may be done over a range of -25°C to 140°C (-13°F to 284°F). The resolution of the 9103-A-156 temperature display is 0.1 degrees.

The temperature is accurately controlled by Hart's hybrid analog/digital controller. The controller uses a precision platinum RTD as a sensor and controls the well temperature with pulsed driven Thermal Electric Devices (TED).

The LED display panel continuously shows the current well temperature. The temperature may be easily set with the control buttons to any desired temperature within the specified range. The calibrator's multiple fault protection devices insure user and instrument safety and protection.

The 9103-A-156 Dry-well was designed for portability, low cost, and ease of operation. Through proper use, the instrument will continuously provide accurate calibration of temperature sensors and devices. The user should be familiar with the safety guidelines and operating procedures of the calibrator as described in this user manual.