ThermoWorks 9103 HART SCIENTIFIC FIELD DRY-WELL TEMPERATURE CALIBRATORS - Manual (Page 13)

2 Introduction
The Hart Scientific 9103 Dry-well may be used as a portable instrument or
bench top temperature calibrator for calibration thermocouples and RTD tem-
perature probes. The 9103 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), calibra-
tions may be done over a range of –25°C to 140°C (–13°F to 284°F). The reso-
lution of the 9103 temperature display is 0.1 degrees.
The calibrator features:
• Convenient handle
• RS-232 interface
• Universal AC input
Built in programmable features include:
• Temperature scan rate control
• Temperature switch hold
• Eight set-point memory
• Adjustable readout in °C or °F
The temperature is accurately controlled by Hart’s hybrid analog/digital con-
troller. 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 tempera-
ture within the specified range. The calibrator’s multiple fault protection de-
vices insure user and instrument safety and protection.
The 9103 Dry-well was designed for portability, low cost, and ease of opera-
tion. 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 de-
scribed in this user manual.
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2 Introduction