2-1
Chapter 2
Introduction
The Hart Scientific 9150 thermocouple furnace can be used for calibrating ther-
mocouple and RTD temperature probes. Calibrations may be done over a range
of 150°C to 1200°C (302°F to 2192°F). Temperature display of the 9150 is 0.1
degrees below 1000°and 1 degrees above 1000°.
The furnace features:
•
Rapid heating and cooling
•
Interchangeable multiple hole probe sleeves
•
Convenient
handle
•
RS-232
interface
Built in programmable features include:
•
Temperature scan rate control
•
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 Type S thermocouple as a sensor and controls the
well temperature with a solid state relay (triac) driven heater. The furnace should
be calibrated yearly by trained personnel at Hart Scientific.
The LED front 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 9150 calibrator furnace was designed for portability, low cost, and ease of
operation. Through proper use, the instrument will provide continued accurate
calibration of temperature sensors and devices. The user should be familiar with
the safety guidelines and operating procedures of the furnace as described in
this manual.
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