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14
The 1750
Proximate
Analyzer
A rapid data processing
system for calculating and
reporting the proximate
analysis of coal.
RECOIvfMENDED FOR
Assembling data, calculating and reporting the
proximate analysIs of coal, coke and related fuel
samples as tested In coal mine, coal preparation
plant, coal burning utility, commercial Inspection and
other Industrial laboratories where coal samples are
tested daJly on a routine basIs.
A FULLY INTEGRATED
DATA PROCESSING SYSTEM
The proximate analysIs of a coal sample IS a tedious
procedure involving several separate welghmgs and
producing considerable data as needed to calculate:
Air-dry moisture Volatile matter
Total mOisture Fixed carbon
Ash
There IS no way to avoid the indIVIdual welghlngs
and heatlngs Involved in these separate
determinations, but the data entry, data processing
and reporting functions can be speeded and
simplified considerably uSing the convenient
microprocessor system provided by a Parr 1750
Proximate Analyzer.
Operating in conjunction with a mOisture oven.
furnace and analytical balance already on hand In a
user's laboratory. the 1750 Proximate Analyzer Will
• Accept and retain all individual weighings
obtained dUring the series of steps required to
determine air-dry mOisture, total mOIsture, volatile
matter, fixed carbon and ash.
• Organize and store all test data for up to 100
samples, accepting the data as It becomes available
from a digital balance Samples can be weighed and
treated In any order with the Analyzer accepting the
data as generated. organizing and storIng It In proper
sequence under operator assigned sample numbers
• Collect and store sample weights for
calorimetric determinations. If a 1750 Proximate
Analyzer IS used With a 1261 CalOrimeter (or With a
1241 CalOrimeter eqUipped With a 1720 or 1730
Controller) the 1750 Analyzer Will provide all of the
funcoons of a 1741 Balance Interface, and a separate
Balance Interface Will not be reqUired. Each welghmg
Will be shown on an LED display before It IS entered
Into memory, With the Analyzer promptmg the
operator to Identify each entry With a valid sample
number. Weights can also be entered from a
keyboard The Analyzer Will collect and hold all
sample weights for calOrimetric determination untIl
called up by the calOrimeter.
• Collect and store sulfur values from a 1760 Sulfur
Analyzer to be Included in a consolidated proximate
analystS report.
• Calculate air-dry moisture, total moisture,
volatile matter, fixed carbon and ash for each
sample on any of four reference bases:
As-received (AR) Dry (DRY)
As-determmed (AD) Dry, ash-free (OAF)
• Convert calorific and sulfur values to any of the
mOisture reference bases listed above.
• Produce a consolidated proximate analyses
report for each valId sample (includmg calOrifIc value
and sulfur) by feedmg all collected reports to any of
the folloWing:
A Parr 1755, 40-column printer or an 80-column
commercial printer.
A 1261 Calonmeter WIth a Parr 1755 Printer
A central computer.
A laboratory or personal computer connected on a
Parr Smart Link.
• Produce full or partial reports at any time for an
indIVIdual sample or for a full range of tests Reports
can Include all supporting raw data or can be
condensed to show only final values.
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