The Montecito Series utilizes the time-tested "bell" configuration in which the work is placed on a hearth and the heating element, radiation shields and chamber are lowered over the work.

A microprocessor-based temperature programmer and programmable logic controller (PLC) deliver precise, repeatable results with automatic, unattended operation. The sophisticated temperature sensing and control system is highly reliable and eliminates the two difficulties common to optical pyrometry; emissivity variation and optical path obstruction.

The proprietary Star-6^TM heating element provides exceptional temperature uniformity throughout the hot zone. Process programs can be quickly and accurately changed from one run to the next using optional memory cartridges. This versatility allows a variety of products to be processed with confidence.

Montecito furnaces are designed with the user in mind, emphasizing ease of installation, maintenance, programming and reliable operation at high temperatures.

Atmospheres available include:

• High vacuum (5 x 10-8 torr)
• Hydrogen (dry or wet)
• Inert gas (argon, helium)
• Nitrogen (very dry)

Typical Process Applications:
A wide variety of sensitive processes are performed with precision including:

• Annealing sapphire.
• Degassing at high temperature and high vacuum.
• Sintering tungsten or molybdenum in vacuum or hydrogen.
• Sintering ceramics.
• High temperature brazing.
• Sintering aluminum nitride.
• Stress relieving.
• Your Application?

B1500M

• Temperature rating: 1150 °C continuous.
• Hot zone materials: All nickel-chromium alloy.
• High vacuum pump: cryopump or turbomolecular pump. Ultimate vacuum, 5 x 10-8 torr or less.
• Programmable loop and logic controller with operator interface; Honeywell UMC900 or Siemens S7-300.
• Independent overtemperature protection:
  Honeywell, Inc. UDC 2500.
• SCR Power Controller: Phase angle fired, instantaneous overcurrent trip, phase loss protection, subcycle fuses, water-cooled heat sink.
• Transformer: Water-cooled, low temperature rise.
• Hydraulic or air over oil systems for raising, lowering and clamping the chamber.
• Process gas system: Fully interlocked, pressure regulated and flow regulated.
• Hydrogen burnoff: Dual igniter coil with current sensing relay.
• Power: 480 VAC ±5%, 3 phase, 60 Hz (optional 380/415 VAC, 50 Hz)
• Hydrogen: 30-50 psig (2-4 bar) input.
  Process pressure: 0.5-2 psig (30-130 mbar).
• Nitrogen (or Argon): 30-60 psig (2-4 bar) input. Process pressure: 0.5-2 psig (30-130 mbar).
• Compressed air: 80-120 psig (5.5-8 bar).
• Water flow: 30-100 gpm (115-340 ltr/min)
  @ 30 psi.