Model BF51634C

Large Chamber 1700°C Box Furnaces are designed for efficient, high temperature use with minimal maintenance.
Moldatherm® graduated density insulation adds to safety and performance by forming enhanced insulation protection between the high temperature chamber and exterior cabinet surface. Unique right angle heating elements and an integrated control system (a choice of single setpoint or programmable control) combine to deliver safe, dependable operation.

General Features

Construction

• Available in two popular chamber sizes (see chart on specifications page)
• Energy efficient double shell design for better uniformity, lower external cabinet temperature
• Moldatherm® high temperature ceramic fiber insulation with advanced graded design for fast heat-up and resistance to thermal shock
• Side swing door provides full and easy access to chamber, protects user from heat surge
• Removable panels for easy access to replaceable heating elements and thermocouples
• Atmosphere port, .375" diameter, for fresh air or inert gas inlet (located at back wall, bottom)
• Moldatherm® hearthplate supports load and protects chamber from damage due to spillage
• High volume cooling fans move air between inner and outer chamber to lower exterior shell temperatures and improve energy efficiency
• Solid-state power module with ammeter, circuit breaker, transformer and front panel indicator lights for "Open Element", "Fuse" and "Main Power Applied"
• Long-life type "B" thermocouples for accurate high temperature measurement
• Safety power disconnect switch cuts power to heating elements when door is opened

Smart Heating Elements

• Molybdenum disilicide elements with unique right angle bend and sidewall mounting to reduce maintenance associated with element termination and mounting
• Energy efficient, fast heat-up and response
• Increased resistance to thermal shock, ideal for rapid cycling over extended periods
• Designed for easy replacement without matching resistance values

Controllers

Digital, Single Setpoint Controller

• Microprocessor-based PID control (proportional, integral, derivative) prevents overshoot
• Single segment, single setpoint, 1 ramp to setpoint
• Adjustable high limit overtemperature protection
• Simultaneous LED display of actual temperature vs. setpoint
• May be configured to display temperature in either °C or °F

Option P Digital Multiple Program, Multiple Segment Programmable Controller

• Microprocessor-based PID control (proportional, integral, derivative) prevents overshoot
• Multiple programs and segments for ramp (up and down) and dwell (timed hold) temperature control. See page 35 for more information
• LED display of actual temperature
• May be configured to display temperature in either °C or °F

Programmable Control With Communications

• Available on "COM" Models
• Includes installed communications card and port for user connection
• Controllers include RS485 data port (communications card and port) for connection to remote computer, allowing modification, interrogation and data transfer of all instrument control and configuration parameter. Up to 30 units can be connected to one PC. Software is not included, but is available as an option.
  

Option B Overtemperature Control (OTC)

• Adjustable digital overtemperature control, available on selected models with "B" designation; see chart on specifications page
• Protects furnace and load in the event of primary control circuit failure
• Overrides main controller, assumes temperature control and shuts off power to furnace if high limit is reached
• Manual re-set required for safety
• Operates via magnetic contacts through signal from independent thermocouple
• Factory installed, specify when ordering