Parr Instrument 6750 - Manual (Page 4)

Proximate Interface
w w w . p a r r i n s t . c o m 3
Concept of Operations
The 6750 Proximate Interface is an advanced
microprocessor system designed to:
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Collect and store all individual weights obtained
during the series of steps required to determine
moisture, volatile matter, ash, Btu’s and Sulfur
for up to 1000 coal samples, with all data identi-
fi ed by a user assigned alphanumeric sample ID
string (16 characters).
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Collect and store sample weights for Btu deter-
minations.
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Coordinate and organize all data as it becomes
available, and store it in correct order without
regard to entry sequence.
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Calculate the resulting proximate analysis for
each sample on any of four reference bases:
As-determined (AD)
As-received (AR)
Dry (DRY)
Dry, ash-free (DAF)
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Convert and report Btu and sulfur values to se-
lected moisture reference bases.
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Act as a remote Air Dry Loss or Total Moisture
Interface.
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Support data entry, storage and reporting for
two additional types of coal tests commonly
done in the same laboratory along with the
more traditional mass loss or calorimetric based
measurements.
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Free swelling index (FSI)
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Ash Fusion
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Transmit all results to a network printer, and/or
to a 40 or 80-column printer, and/or to a central
computer to obtain a consolidated printout or
report of the proximate analysis, Btu and sulfur
values for each sample.
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Produce fi nal or preliminary reports at any time
for any valid sample ID.
Preface
Related Instructions
The following Parr publications are also included
to further your understanding of this instrument and
its component parts:
No. Description
201M Limited Warranty
Scope
This manual contains instructions for installing
and operating the 6750 Proximate Interface.
The 6750 Proximate Interface can be installed in
a variety of confi gurations and the user will want to
choose the proper installation procedures for his or
her planned setup. Each 6750 Proximate Interface
is equipped with two USB ports and an Ethernet net-
work connection.
Normally, the USB printer connection will be
used in conjunction with a standalone printer. The
1758 Printer can be used with the 6750 Proximate
Interface. A cable to connect the 6750 Proximate
Interface to the 1758 Printer is supplied
with the printer.
The USB port is also used to accept sample
weights directly from an analytical or top-loader
balance. The Interface software has been confi gured
to operate with a wide variety of balances. Parr can
supply cables for common balance connections.
An Ethernet network connection is used when
the 6750 Proximate Interface will be installed in
conjunction with a calorimeter and / or ADL or total
moisture interface devices. It may also be chosen
when longer distance communications are required.
Separate sections of this manual deal with each of
these communication ports.
Customer Service
Questions concerning the installation or operation of this instrument
can be answered by the Parr Customer Service Department:

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