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K90100
Automatic Melting Point Range Apparatus
The Koehler Automatic Melting Point Range Apparatus is the latest technology
for microprocessor-based determinations of melting point ranges of
crystalline, powdered and polymeric materials, and is used to assess sample
purity. Requires approximately 5mg of sample spread uniformly on a glass
slide, covered with a glass coverslip. The slide is placed on a uniformly
heated, round furnace and subjected to a heating profile as required by the
user. Two user operating modes are available: automatic and manual. In the
automatic mode, the start and end of melting point range is automatically
detected by a photosensing device. In the manual mode, the start and end of
melting point range can be selected manually with a key-press by the user. Sample
melting point can be determined as per the BP method by the ‘Heat & Cool’
temperature function. The melting process is recorded and viewed on-screen in
real-time by a CCD camera. Precise temperature control gives reproducible
results to within 1%. The unit contains an automatic temperature safety
cut-off feature if no melting points are detected 15°C above the expected
melting point or if the oven reaches 315°C. The melting process is magnified,
recorded, and viewed on-screen in real-time by a CCD camera. The change in
physical appearance of the sample with respect to temperature is recorded,
and the start/end of melting is observed automatically. A representation of
the entire process can be printed out in graphical form for validation.
Specifications
Conforms to: BP Appendix 5-Method 6; GLP
Visual Image: 10x magnified displayed on monitor
Temperature Range: ambient + 5 to 315°C
Heating Rates: 0.2, 0.5, 1.0, 2.0, 3.0, 6.0, 12.0°C/min
Temperature Readability: 0.1°C
Cooling Time: 20 minutes (300°C to ambient)
Temperature Accuracy:
±0.5°C (ambient + 5 to 200°C)
±0.8°C (200 to 315°C)
Sample size: 5 mg (approx.)
Sample Holder: Glass Slide 1 ± 0.02mm thick
Sample Cover: Glass Coverslip 0.17mm thick
Temperature Sensor: Pt-100 (2 wire RTD)
Test Storage: Up to 20 tests with parameters
Electrical Requirements
115V, 60Hz, Single Phase
220V, 50Hz, Single Phase
Dimensions lxwxh,in.(cm)
Main Unit: 16.5x12.25x13 (42x31x33)
Monitor: 8x5.5x5.5 (20x14x14)
Net Weight: Main Unit: 22 lbs (10 kg)
Monitor: 1.8 lbs (0.8 kg)
Shipping Information
Shipping Weight: 29 lbs (13 kg)
Dimensions: 3.6 Cu. ft.
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