Model 54854
Larger image

1200°C Large Diameter Tube Furnaces

Blue M single- and three-zone tube furnaces are designed for use where exceptional radial and linear temperature uniformity, process repeatability, rapid heat-up and response are critical.

Features / Benefits

• Unique double shell design
• Can be used with a variety of customer supplied ceramic, quartz or alloy process tubes, as well as cylindrical atmosphere retorts available from Blue M
• Two semi-cylindrical heating units, one located in each furnace chamber-half, form a long split cylindrical heated chamber
• Graded thermal insulation
• Insulating vestibules at the ends of the heated chamber
• Long-life, fast response thermocouples attached to six feet of compensated thermocouple lead wire with a polarized plug
• Provides for low outer shell temperature
• Full length hinge and a positive latch permit easy observation, fast cooling, convenient placement of the tube and overall ease of operation
• Outstanding radial and linear temperature uniformity
• Chamber temperature uniformity is also improved
• Enhanced uniformity and reduces heat loss

Three-Zone Models

• Three independent power circuits (zones) with independent thermocouples for control reference
• Adjustable profiling of end zones by independent controller
• General construction and physical appearance of the 3-zone furnace is similar to the single zone furnace of equivalent temperature range
• Uniform center zone temperature profile
• Produces a pronounced controlled gradient

Control Consoles

• Blue M single- and three-zone temperature control consoles are designed to provide the versatility and control accuracy to meet the most critical process requirements. These systems incorporate advanced self-tuning instrumentation which automatically sets the best control parameter values during the furnace operation. A selectable ramp-to-setpoint feature allows controlled heat-up to setpoint temperature. Two digital displays simultaneously indicate setpoint and process temperatures in °C or °F. Control consoles include solid state power module(s), one-off circuit breaker and one thermocouple input jack per zone.

Options

• Computer communications port
• Software
• Inert and combustible atmosphere admission systems
• Retorts
• All standard 1200°C single- and three-zone tube furnace models are designed for horizontal operation. Furnaces specifically designed for vertical mounting are available on special order.
• Option P Programmable Controller
  This controller offers the convenient flexibility of ramping to multiple setpoint levels and holding these levels for variable periods of time. The temperature controller provides 16 programmable segments consisting of ramps (up or down) or dwells (timed holds).
• Option P4
  This controller offers the convenient flexibility of ramping to multiple setpoint levels and holding these levels for variable periods of time. The temperature controller provides four 16 programmable segments consisting of ramps (up or down) or dwells (timed holds).
• Option B Overtemperature Control (OTC)
• This option provides positive protection of both furnace and load in the event of primary control circuit failure. Completely redundant circuit includes separate analog setting instrument with manual reset pushbutton, magnetic contactor and independent thermocouple.
• Digital communication kits
  These kits allow modification and interrogation of all instrument control and configuration parameters from a remote computer. Kits are available to interface with RS-2323 or RS-422/485 communications ports.
• Retorts
  Single-end and double-end cylindrical retorts are available for use with all 1200°C tube furnaces when atmosphere processing is required. (Maximum retort temperature 1050°C.)