The Preiser Scientific Ash Fusion System is designed to determine ash cone deformation temperatures in coal and coke ash per ASTM Standard D-1857 and ISO Standard 540 (CO/CO2 reducing atmosphere option).
The Model PAF 2014 is comprised of a furnace, control tower, and a user interface PC. An all-in-one style PC running Windows® operating system accommodates both image collection and analysis concurrently.
The mechanical structure features a functional design offering a "user friendly" operation coupled with very low maintenance. The swing away camera mounting allows for easy image alignment and unobstructed sample insertion on both the single and dual furnace models.
The control tower consists of the furnace temperature controller, over temperature protection, and video capture. Video and furnace communications to the user PC are via a single USB interface transferring furnace command and query requests along with live streaming video from furnace cameras.
The analysis software allows the user to manually review and generate reports of completed tests. An autosuggest algorithm is available to pre-populate analysis for the laboratory technicians’ review and refinement. Test results, log files, and instrument settings can be viewed within the program. These files can be directed to a printer, forwarded with built in email, viewed on a shared drive, or accessed via a LIMS system. Instrument data storage allows the accumulation of approximately of 5 years of test data and images. It is suggested that data archiving be scheduled on a 6-12 month basis for heavy instrument usage, and longer intervals for lighter use.
An in-program Help Manual provides operational information and reference. Remote on-line assistance and training can be provided.
Features• Single Furnace Configuration
• 6 to 8 Samples per Run
• Manual or Auto Suggest Analysis
• Temperature Ramp Rate can be adjusted from 1ºF to 20ºF/minute (1ºC to 12ºC/minute)
• Sample temperature zone can be calibrated with two-point melting standards (gold and nickel)
• External Single-Arm Camera Positioning
• Direct View Camera System w/IR Filtering
• Only 4 Heating Elements Required
• Very Low (0.8-1.0LPM) Gas Consumption
• Requires No Purge Gas
Specifications
| Temperature Range |
416ºC to 1555ºC (750ºF to 2800ºF) |
| Temperature Ramp Rate |
User programmable from 1ºC to 12ºC/minute (1ºF to 20ºF) |
| Temperature Display |
ºC or ºF |
| Maximum Sample Load |
6-8 samples per analysis (single furnace) |
| Conforms to Methods |
ASTM & ISO |
| Ash Fusibility Determination |
Manual or Auto Suggested (IT, ST, HT, FT) |
| Analysis Time |
3-4 hours typical cycle time (depending on ramp rate and temperature range) |
Gas Requirements
Oxidizing:
Reducing: |
O2 and CO2 mixtures 0.9 lpm at 20psi (1.7bar) ±10%
CO and CO2 mixtures 0.9 lpm at 20psi (1.7bar) ±10% |
| Exhaust |
230 cfm flow, 6 inch axial exhaust fan |
| Safety |
Supplied with CO monitor
Three level furnace over temperature protection (temperature controller,
overtemp controller, user PC monitoring.) |
| Electrical Requirements |
230Vac / 1ph / 50-60Hz / 20A |