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1700° C BOX FURNACE, LARGE CHAMBER, INTEGRAL CONTROL

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 set point or programmable control) combine to deliver safe, dependable operation.

General Features

Construction
Available in two popular chamber sizes (see chart)
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^© hearth plate 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 Set Point Controller
Microprocessor-based PID control (proportional, integral, derivative) prevents overshoot
Single segment, single set point, 1 ramp to set point
Adjustable high limit over temperature protection
Simultaneous LED display of actual temperature vs. set point
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
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. Please see page 35 for additional options and information.
Includes installed communications card and port for user connection

Option B Over Temperature Control (OTC)-
Adjustable digital over temperature control, available on selected models with "B" designation; see chart
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

1700° Box Furnaces, Large Chamber, Temperature Range

500°C to 1700°C

For Over Temperature Control Specify Option B When Ordering.

Model	Integrated Digital Controller	Electrical	Watts	Interior Dimensions W x F-B x H in"	Exterior Dimensions W x F-B x H in"	Ship Weight lbs
Capacity 0.6 Cu.Ft (17 liters)
BF51634C	Digital/ 1 Setpoint	208/240V, 50/60Hz	5900	11" x 10.5" x 9"	28" x 24" x 31"	350
BF51634PC	Multi Seg/ Multi Prog	208/240V, 50/60Hz	5900	11" x 10.5" x 9"	28" x 24" x 31"	350
BF51634PCOMC	Multi Seg/ Multi Prog/Com	208/240V, 50/60Hz	5900	11" x 10.5" x 9"	28" x 24" x 31"	350
Capacity 0.9 Cu.Ft (25.5 liters)
BF51664C	Digital/ 1 Setpoint	208/240V, 50/60Hz	7100	11" x 15.5" x9"	28" x 30" x 31"	370
BF51664PC	Multi Seg/ Multi Prog	208/240V, 50/60Hz	7100	11" x 15.5" x 9"	28" x 30" x 31"	370
BF51664PCOMC	Multi Seg/ Multi Prog/Com	208/240V, 50/60Hz	7100	11" x 15.5" x 9"	28" x 30" x 31"	370

Note: Required power cord and hardwiring are not included.

Heat-Up/Cool-Down Rates

Click for larger image

Model BF51634C Heat-Up/Cool-Down, No Load

Actual performance may vary depending on load, chamber size, sample placement, ambient temperature and environmental conditions.

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