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	FURNACES		TUBE FURNACES

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1700°C HIGH TEMPERATURE TUBE FURNACES (INDEPENDENT CONTROL)

STF54434C High temperature tube furnaces achieve excellent temperature uniformity at 1700°C with rapid heat-up, recovery and cool-down. Moldatherm^® graduated density insulation adds to safety and performance by forming enhanced insulation protection between the high temperature chamber and exterior cabinet surface. Moldatherm^® graduated density insulation, combined with molybdenum disilicide heating elements, provide superior radial and linear temperature uniformity with resistance to thermal shock. The independent digital temperature control (ordered separately) has multiple programmable segments useful for a wide range of applications.

General Features
Heating elements with unique right angle bend and sidewall mounting deliver exceptional energy release, fast heat-up and recovery, reduced thermal process cycle time, and cost savings through quicker throughput and energy efficiency Heating elements tolerate rapid cycling over extended periods; elements are easily replaceable without the need to match resistance values
Heating elements are sidewall mounted to protect integrity of chamber roof; roof penetrations are avoided
Type "B" thermocouples assure accurate temperature measurement and long thermocouple life; 10" compensated lead wire with polarized plug included
Moldatherm^® end vestibules accept 3" O.D. process tube (customer supplied)
Optional Moldatherm^® vestibules permit operation with 1", 2" and 3" O.D. process tubes for increased versatility
Double shell construction and convection cooling design reduces exterior surface temperature
Removable louvered panels provide easier access to heating elements and thermocouple

1700° High Temperature Tube Furnace, Temperature Range 500°C to 1700°C

Model	Volts, Hz	Watts	Independent Controller	Exterior Dimen. H x F-B x W in"	Process Tube Dia. in"	Heated Length	Ship Weight lbs
STF54434C	208/240V, 50/60 Hz	5000	CC59256PCOMC	19" x 16" x 22"	3"	12"	95
STF54454C	208/240V, 50/60 Hz	10000	CC59256PCOM2CKT	19" x 16" x 34"	3"	24"	165

Process Tubes These furnaces are designed for use with a variety of process tubes including alumina, mullite, quartz and metallic. Process tubes are not supplied with furnace.

Vestibule Set One 3" vestibule set included; other size vestibule sets may be ordered individually and separately.

Tube sleeves must be ordered individually and separately.

Vestibules
Optional Moldatherm^® vestibules permit operation with 1"/25.4mm, 2"/50.8mm and 3"/76.2mm O.D. process tubes for increased versatility. Two vestibules are required for each furnace. One 3" vestibule set is included and installed with each furnace.

Model	Vestibule Catalog No. (Ordered Separatley)
Model	1" dia.	2" dia.	3" dia.
STF54434C	7219-2147-001	7219-2147-002	7219-2147-003*
STF54454C	7219-2147-013	7219-2147-012	7219-2147-011*

*One set of (2) included with furnace.

Moldatherm^® Sleeves (optional)
Tube sleeves may be placed over customer supplied process tubes to reduce thermal shock to the process tube. Sleeves must be ordered separately. All tube sleeves 3" long x 1 1/2" thick.

Model	Vestibule Catalog No. (Ordered Separatley)
Model	1" dia.	2" dia.	3" dia.
STF54434C	7219-2134-001	7219-2134-002	7219-2134-003*
STF54454C	7219-2134-013	7219-2134-012	7219-2134-011*

-*One set of (2) included with furnace.

CONTROLLERS

CC59256PCOMC 1700°C Controller, Programmable, With Communications
Lindberg/Blue M 1700°C Programmable Controllers provide 300 programmable segments for a variety of ramp (up and down) and dwell (timed holds) settings. Controller will accept up to 30 individual programs with up to 99 segments per program. The controller visually displays ramp rate, dwell time, program segment and percent power output. A holdback feature allows the operator to set a -process vs. set point" temperature value which, when exceeded, holds the program to allow the process to catch up. The controller includes an advanced self-tuning feature which automatically sets the best PID settings for the thermal process. Two digital displays simultaneously indicate actual temperature and set point temperature. High limit over temperature protection is standard. The control console includes a circuit breaker, power module, transformer and cooling fans.

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.

Option B Over Temperature Control (OTC)
Adjustable digital over temperature control, factory installed on selected control consoles 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.

Model	Digital	With Programmer	With Overtemp Control	Volts, Hz	Exterior Dimen. H" x F-B" x W in"	Ship Weight lbs
CC59256PCOMC				208/240V, 50/60 Hz	10" x 15" x 21"	130
CC59256PBCOMC				208/240V, 50/60 Hz	10" x 15" x 21"	130
CC59256PCOM2CKTC				208/240V, 50/60 Hz	30" x 15" x 22"	230
CC59256PBCOM2CKTC				208/240V, 50/60 Hz	30" x 15" x 22"	230

Note: Required power cord, hardwiring and interconnecting wiring are not included.

Uniformity Profile

Click for larger image
Model STF54434C Uniformity Profile, 1700°C, No Load

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

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