The Thermo Scientific STF55433C Lindberg/Blue M 1,500 Degree C General Purpose Tube Furnace has a 30.5cm (12 inch) heated zone, a temperature range of 500 to 1,500 degrees C, and a single-program/multi-segment programmable digital controller for general laboratory use. Double-walled construction with thermal-efficient ceramic fiber insulation (moldatherm) reduces heat loss, enhances energy efficiency, and increases the interior/exterior temperature differential. The controller has a dual-LED display that continuously shows both the chamber temperature and the setpoint temperature of the furnace in degrees C or F. The unit can accommodate tubes with an outer diameter of 1 to 3" (2.5 to 7.6cm) with appropriate tube adapters. A set of 2" tube adapters is included with the furnace. This furnace is designed for laboratory-heating applications such as ashing, sintering, heat treating, quantitative analysis, and gravimetric analysis.

The Thermo Scientific STF55433C is wired for both 240V and 208V operation and requires a single-phase 208V or 240V hardwired electrical connection (not included). Operation at 208V requires greater heat-up and recovery intervals than operation at 240V. The single-program/multi-segment programmable digital controller allows the user to create and save a heating program with up to sixteen ramp and dwell segments. A ramp controls how quickly the furnace heats to a setpoint and a dwell determines how long the furnace holds the temperature. The controller stores the program for future use. The controller has a PID (Proportional, Integrative, Derivative) control that prevents temperature overshoot.

Specifications

H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Laboratory furnaces are used for heating applications that require a range of high temperatures. They heat to high temperatures evenly and maintain consistent temperatures, while providing an environment free of undesirable contaminants and moisture. Factors such as object size, controllers, temperature range, and shape determine the uses of particular furnaces. Most furnaces have digital controllers that determine how fast they heat up (ramp), how long the temperature can be held (dwell), and how fast they cool down. Safety systems are included in most furnaces to prevent overheating the contents, as well as the furnace itself. Laboratory furnaces are used in applications such as petroleum analysis, chemical analysis of certain compounds, and heat-treating small steel parts.

Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific and Fisher Scientific brands, among others. The company was founded in 2006 and is headquartered in Waltham, MA.

What’s in the Box?

• STF55433C Lindberg/Blue M 1,500 Degree C Digital Tube Furnace with 12-Inch Heated Zone and 1 to 3-Inch Tube O.D.
• (1) Set of two-inch diameter moldatherm tube adapters
• Instructions