Furnaces, Benchtop, Muffle Furnace, Type F47900 and F48000, Thermo Scientific

• 120 or 350 cubic inch capacities
• 1200°C max temperature
• Built in venting system and inert gas injection port

• Type F47900 offers 120 cubic inches of heating area.
• Type F48000 provides 350 cubic inches of heating area; a ceramic shelf is included to double furnace load capacity (Cat No F949-31).
• Open coil heating elements on both sides of chamber assure fast heat-up, with minimum temperature gradient.
• Maximum energy efficiency is achieved by surrounding the chamber with thermal-efficient ceramic insulation.
• Ther rear of the chamber incorporates a 0.38” diameter port for injecting special atmospheres or monitoring chamber temperature with independent measuring device.

• Built-in venting system removes undesirable contaminants and moisture; extends the life span of the element and unit.
• Control A: Analog Control holds accurately at one temperature. A single digital display indicates chamber temperature or setpoint.
• Control B: Single setpoint, digital control reduces overshoot. Includes OTP alarm.
• Control C: 8 segment programmable control. Allows programming the rate of temperature increase and decrease (ramp), and the length of time the temperature holds at specific levels (dwell).
• Control D: 16 segment programmable control that includes a RS232 communications port for connecting to printer or computer. Stores up to four programs.
• All units include a thermocouple, grounded three-wire cord, and plug.

• Increased operator safety is achieved with a switch that disconnects power to heating elements upon opening the door during operation.
• For safety, an open circuit will trigger the sensor break protection and remove power to heating elements eliminating run-away conditions.