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  4. LECO Corporation - AF700

LECO Corporation - AF700

Manufactured by  LECO Corporation
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Monitors ash cone deformation temperatures in coal ash, coke ash, and mold powders via ash fusion.

The AF700 Ash Fusion Determinator automatically monitors ash cone deformation temperatures in coal ash, coke ash, and mold powders using Windows®-based software. It increases laboratory throughput using predefined ash fusibility temperatures (IT, ST, HT, and FT) automatically determined by the software's Image Recognition Functions (IRF). A complete image history for all analyzed samples can be digitally archived and retrieved to make objective determinations of deformation temperatures. Door interlocks and an integrated carbon monoxide detector provide increased laboratory safety.
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Flow sensors in AF700 failing at a rate of one per week
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Features of AF700
  • Exclusive Eclipse architecture—a unique design by LECO that improves reliability and serviceability
  • A stable, permanently mounted integrated camera—isolated from the high temperature area
  • Integrated viewing system—consistently aligns mirrors with camera and furnace
  • LED light ring—enables accurate low temperature deformation point measurement
  • High-endurance six-element heating furnace—six 3/4 inch (1.9 cm) heating elements have strength and power load capacity resulting in a durable long-life furnace that requires less maintenance
General Specifications

There are no General Specifications available.

Additional Specifications

Temperature Range 400°C to1500°C (750°F to 2730°F)
Temperature Ramp Rate Programmable from 4°C to 12°C/minute
Temperature Display °C, °F, or °K
Maximum Sample Load6 samples per analysis
Conforms to MethodsASTM, DIN, ISO, BSI
Ash Fusibility Determination Automatic or manual (IT, ST, HT, FT)
Analysis Time 4 hours typical cycle time (depending on ramp rate and temperature range)
Image Collection Digital (up to 30 frames/minute)
Image Resolution 1280 x 1024 pixels
VentilationBuilt-in 160 CFM/furnace
Exhaust 4 inch diameter (10.2 cm) active exhaust hose capable of handling
160 CFM flow, with no back pressure
Safety Built in CO monitor with auditory alarm, gas flow stopped on alarm
Physical Dimensions38 in. H x 13 in. W x 32 in. D (97 x 33 x 81 cm)
Shipping Weight 170 lb. (77 kg)
Electrical Requirements 215 to 253 V~ (at max load), 50/60 Hz, single phase, 30 A, 23,600 BTU/hr
Environmental Conditions 15°C to 35°C (59°F to 95°F)

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