Parr Instrument 6750 User Manual
6750
Proximate Interface
Operating Instruction Manual
For models produced after January 2012
650M
Proximate Interface
Table of Contents
Preface
Related Instructions — 3
Scope — 3
Concept of Operations — 3
Customer Service — 3
Safety Information — 4
Intended Usage — 4
Explanation of Symbols — 5
General Specifi cations — 5
Environmental Conditions — 5
Cleaning & Maintenance — 5
Installation
Balance Port Connections — 6
Printer Port Connections — 6
Ethernet Network Port — 6
Start Up — 6
Instrument Description
Types of Controls — 6
Menu Keys — 7
Control Keys — 7
Program Installation and Control
Software Installation — 7
Factory Default Settings — 7
User Default Settings — 7
Factory Default Settings — 8
Menu Operating Pages
Process Timers — 9
Operating Controls — 9
Program Information and Controls — 10
Data Entry Controls — 11
Reporting Controls — 12
Communication Controls Menu — 13
File Management Menu — 21
Run Data File Manager — 21
Diagnostics — 22
Operating Instructions
Data Entry & Operation — 22
Basic Data Entry Procedures — 23
BTU Weight Entry — 23
BTU & Sulfur Value Entry — 23
Air Dried Loss or Total Moisture Entry — 24
Ash Fusion Entry — 24
FSI Entry — 24
Automatic Sample ID Increment Option — 24
Batch Input Mode — 25
Reporting Instructions
Report Generation — 26
Editing Reports — 26
Memory Management
— 27
Data & Communication Specifi cations
6750 Run Data Template — 28
Filename Convention — 29
Balance Input Driver Specifi cations — 29
Mettler 011/012 Interface — 29
Mettler MT-SICS — 29
Sartorius Balance Interface — 29
A&D Standard Format (type 0) — 30
Generic Interface — 30
Parr Balance Interface Cables — 30
Technical Service
Return for Repair — 30
References
— 31
Figures
Figure 1
6750 Proximate Interface - Internal Parts
View — 32
Figure 2
6750 Proximate Interface - Back View — 33
Figure 3
6750 Proximate Cover Panel - Internal
View — 33
Figure 4
6750 Proximate Interface Schematic — 34
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Parr Instrument Company
Proximate Interface
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 network 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.
Concept of Operations
The 6750 Proximate Interface is an advanced
microprocessor system designed to:
t 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 identifi ed by a user assigned alphanumeric sample ID
string (16 characters).
t Collect and store sample weights for Btu deter-
minations.
t Coordinate and organize all data as it becomes
available, and store it in correct order without
regard to entry sequence.
t 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)
t Convert and report Btu and sulfur values to se-
lected moisture reference bases.
t Act as a remote Air Dry Loss or Total Moisture
Interface.
t 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.
t Free swelling index (FSI)
t Ash Fusion
t 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.
t Produce fi nal or preliminary reports at any time
for any valid sample ID.
Customer Service
Questions concerning the installation or operation of this instrument
can be answered by the Parr Customer Service Department:
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3
Proximate Interface
Preface (Continued)
The 6750 Proximate Interface does not require
a special oven, furnace or analytical balance. All
drying and ashing operations are performed in the
same oven and furnace normally used for standard
ASTM proximate analyses. The 6750 Proximate
Interface is designed to communicate with a Mettler,
Sartorius, Ohaus or most digital analytical balances
for automatic data entry. Sample weights can also
be entered manually using the touch screen keyboard on the console.
Existing laboratory procedures do not have to
be changed. Samples can be weighed and treated in
any order, with the 6750 Proximate Interface accepting data from a digital balance as generated, organizing and storing it in the correct order, under operator assigned sample IDs. The operator can override
the automatic data entry system at any time to enter
weights as percentage values, manually if necessary. Weights used to determine air-dry loss (ADL)
or total moisture can be entered manually, or the
ADL or total moisture value can be calculated and
entered separately as a percent.
Usually the 6750 Proximate Interface will be
installed adjacent to an electronic analytical balance
and connected to the Interface with a serial communications cable. After each weighing, the entry will
be shown on a LCD display of the 6750 Proximate
Interface for confi rmation before it is entered into
memory. The operator will then use the touch screen
keyboard to identify each entry test (moisture, ash,
volatile matter, Btu or air dry loss) or function (tare,
gross or fi nal weight) to which the data applies.
The 6750 Proximate Interface will also prompt the
operator to identify each entry with a valid sample
ID. Several selectable options are available to speed
data entry procedures by allowing the operator to
enter consecutive tare and gross weights automatically with a minimum number of keystrokes. Data
for up to 1000 samples can be entered before results
must be withdrawn to make room for additional
data. All data is stored in non-volatile Flash ROM
based memory.
Additional 6750 Proximate Interfaces may be
connected to the network confi gured as ADL or total
moisture interface devices at some remote location.
In this system, the primary 6750 Proximate Interface
can then be confi gured to get ADL or total moisture
data (weights) from the remote 6750 Proximate
Interface, confi gured as an ADL or total moisture
device.
If the 6750 Proximate Interface is connected to
a Parr Calorimeter via an Ethernet communications
network, sample weights for heats of combustion
determinations will be transferred automatically to
the calorimeter. Determined Btu and Sulfur values
can then be transferred back to the 6750 Proximate Interface for incorporation in fi nal reports. If
the 6750 Proximate Interface is not connected to a
calorimeter controller, Btu and Sulfur values can be
entered directly through the touch screen.
The user can select from a variety of pre-programmed options to obtain either complete or partial reports for individual samples or for a full range
of tests. A memory management system will clear
the test report memory when desired.
Safety Information
To avoid electrical shock, always:
1. Use a properly grounded electrical outlet of correct voltage and current handling capability.
2. Ensure that the equipment is connected to electrical service according to local national electrical codes. Failure to properly connect may create
a fi re or shock hazard.
3. For continued protection against possible hazard, replace fuses with same type and rating of
fuse.
4. Disconnect from the power supply before maintenance or servicing.
To avoid personal injury:
1. Do not use in the presence of fl ammable or combustible materials; fi re or explosion may result.
This device contains components which may
ignite such material.
2. Refer servicing to qualifi ed personnel.
Intended Usage
If the instrument is used in a manner not specifi ed
by Parr Instrument Company, the protection provided by the equipment may be impaired.
Provisions for Lifting and Carrying
Before moving the instrument, disconnect all
connections from the rear of the apparatus. Lift the
instrument by grabbing underneath each corner.
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Parr Instrument Company
Explanation of Symbols
I On position
O Off Position
~ Alternating Current (AC)
Proximate Interface
This CAUTION symbol may be present on the Product Instrumentation and literature. If present on the product, the user must consult
the appropriate part of the accompanying product literature for more
information.
ATTENTION, Electrostatic Discharge (ESD) hazards. Observe precau-
tions for handling electrostatic sensitive devices.
Protective Earth (PE) terminal. Provided for connection of the Protec-
tive Earth (green or green/yellow) supply system conductor.
Chassis Ground. Identifi es a connection to the chassis or frame of the
equipment shall be bonded to Protective Earth at the source of supply
in accordance with national and local electrical code requirements.
Earth Ground. Functional earth connection. Note: This connection shall
be bonded to Protective earth at the source of supply in accordance
with national and local electrical code requirements.
General Specifi cations
Electrical Ratings
115VAC, 2.0 Amps. 50/60 Hz
230VAC, 2.0 Amps, 50/60 Hz
Before connecting the 6750 Proximate Interface
to an electrical outlet, the user must be certain that
the electrical outlet has an earth ground connection
and that the line, load and other characteristics of
the installation do not exceed the following limits:
Voltage: Fluctuations in the line voltage should not
exceed 10% of the rated nominal voltage shown on
the data plate.
Frequency: 6750 Proximate Interface units can be
operated from either a 50 or 60 Hertz power supply
without affecting their operation or calibration.
Current: The total current drawn should not exceed
the rating shown on the data plate on the unit by
more than 10 percent.
Environmental Conditions
Operating:
15 ºC to 40 ºC; maximum relative humidity of
80% non-condensing.
Installation Category II (overvoltage) in accordance with IEC 664.
Pollution degree 2 in accordance with IEC 664.
Altitude Limit: 2,000 meters.
Storage:
-25 ºC and 65 ºC; 10% to 85% relative humidity.
Cleaning & Maintenance
Periodic cleaning may be performed on the
exterior surfaces of the instrument with a lightly
dampened cloth containing mild soap solution. All
power should be disconnected when cleaning the
instrument. There are no user serviceable parts
inside the product other than what is specifi cally
called out and discussed in this manual. Advanced
troubleshooting instructions beyond the scope of
this manual can be obtained by calling Parr Instrument Company in order to determine which part(s)
may be replaced or serviced.
Fuses
Lines protective fuses rated: Fast-Act 15 Amp,
250VAC (Parr number 139E23).
The replacement of protective fuses for the 6750
Proximate Interface should be performed by qualifi ed personnel.
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Proximate Interface
Installation
This apparatus is to be used indoors. It requires
at least 2 square feet of workspace on a sturdy
bench or table in a well-ventilated area with convenient access to an electric outlet. The supply voltage
must be within ± 10% of marked nominal voltage on
the apparatus. The supply voltage receptacle must
have an earth ground connection.
Balance Port Connections
The balance driver software in the 6750 Proximate Interface has been confi gured to operate with
a wide variety of balances. The following three balance protocols are supported:
1. Mettler
2. Sartorius
3. A & D
A fourth “generic” protocol is provided which
may, in many cases work with other balances that
are not directly supported. The user should fi rst
study the input specifi cation of the generic format
for compatibility with the intended balance if it is
not one of the fi rst three protocols listed above.
Other balances may be supported if their output
formats are compatible with the above four balances or a generic format which is supported by the
6750 Proximate Interface. Parr can supply the cables
for the balance port to balance connection. The
cables are listed in the
chapter of this manual.
Balances with an RS232C output will need to use
the 2203E RS232 to USB converter.
Data and Communications
be transferred to an Ethernet network connected
computer using the FTP File Transfer Protocol. By
default, the network interface is turned off. The
Interface can be confi gured to use DHCP (Dynamic
Host Confi guration Proticol) or have a static or fi xed
IP address. It is recommended, that any network
confi guration parameters only be set or altered after
consulting with your network administrator. Further
details related to the Ethernet port can be found in
the chapter that specifi cally addresses the data and
communication specifi cations.
Start Up
Once the appropriate cable connections have
been made, the unit is ready to be turned on by
moving the main power switch on the back of the
instrument to the on (I) position. The unit will display the Parr logo in the upper left hand corner of
the LCD, followed by a running description of the
instrument boot sequence. This boot sequence ends
when the instrument Main Menu is displayed.
Instrument Description
Types of Controls
All confi gurations and operations are handled
by a menu-driven system operated from the bright
touch screen display. The settings and controls are
organized into ten main sections as displayed on the
MAIN MENU.
Note: Keys with a “double box” in the upper left
hand corner lead to sub-menus.
Printer Port Connections
The USB Ports on the 6750 Proximate Interface
may be used for connection to either a 40 or 80-column printer. Before making either of these connections, the data transmission rate of the 6750 Proximate Interface and the printer must be matched.
Parr offers the 1758 Printer for use with the 6750
Proximate Interface. An A2170E cable (supplied with
the printer) is used to connect the 6750 Proximate
Interface to the 1758 Printer. The Ethernet network
port can be used for long distance communications.
Ethernet Network Port
The Interface uses the TCP/IP protocol to communicate with other devices, such as PC, on a
standard Ethernet network. Interface test data can
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Parr Instrument Company
Proximate Interface
Menu Keys
The controls that change the data fi eld information in the menus will be one of the following:
Toggles. These data fi elds contain ON/OFF or
t
YES/NO choices. Simply touching the key on the
screen toggles the choice to the other option.
The current setting is displayed in the lower
right corner of the key.
Option Selection. These data fi elds contain a list
t
of options. Touching the key on the screen steps
the user through the available choices. The current setting is displayed in the lower right corner
of the key.
Value Entry Fields. These data fi elds are used to
t
enter data into the Interface. Touching the key on
the screen brings up a sub-menu with a keypad
or similar screen for entering the required value.
Some keys lead to multiple choices. Always
clear the current value before entering a new
value. Once entered, the screen will return to
the previous menu and the new value will be
displayed in the lower right corner of the key.
Data Displays. Most of these keys display val-
t
ues that have been calculated by the Interface
and are informational only. The user, entering
a desired value through a sub-menu, can override certain values. The value is displayed in the
lower right corner of the key.
Note: Some keys will respond with an opportunity
for the user to confi rm the specifi ed action to minimize accidental disruptions to the program and/or
stored data.
Control Keys
There are fi ve control keys that always appear
in the right column of the primary displays. These
keys are unavailable when they are gray instead of
white.
Escape. This key is used to go up one level in
1.
the menu structure.
Main Menu. This key is used to return to the
2.
main menu touch screen from anywhere in the
menu structure.
Sample ID. This key is used to start the data
3.
entry sequence for a given analysis.
Report. This key is used to access the test
4.
results stored in the Interface and to initiate a
report on the display or printer.
Help. This key is used to access help screens
5.
related to the menu currently displayed on the
touch screen.
System Shutdown. This key appears in the
ESCAPE key location when the Main Menu is
displayed. Pressing this button will prompt the
user to confi rm a system shutdown.
Program Installation and Control
Software Installation
The program in the Interface can be extensively
modifi ed to tailor the unit to a wide variety of standard test methods, laboratory techniques, and communication modes.
Note: Changes to the program are made by use of
the menu structure described later in this manual.
Any of these items can be individually entered at
any time to revise the operating program.
Factory Default Settings
Units are preprogrammed with DEFAULT SETTINGS. These default settings remain in effect until
changed by the user. Should the user ever wish to
return to the factory default settings, go to the Program Information and Control Menu, touch Reload
Factory Default Settings and YES.
Flash ROM based memory is provided to retain
any and all operator initiated program changes;
even if power is interrupted or the unit is turned off.
User Default Settings
The user default parameters of the Interface can
be changed to guarantee that the instrument will
always be in the desired confi guration before beginning a series of tests.
Users who wish to permanently revise their default settings may do so using the following procedure:
1. Establish the operating parameters to be stored
as the user default settings.
2. Go to the Program Information and Control
Menu, User/Factory Settings, User Setup ID,
and enter the desired User Setup ID (up to eight
characters).
3. Go to the Program Information and Control
Menu, Save User Default Settings, and YES.
4. To re-load the user default settings, go to the
Program Information and Control Menu, Re-load
User Default Settings, and YES.
Note: It is a good idea to enable “protect settings”
on the Interface to prevent them from being inadvertently changed.
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Proximate Interface
Factory Default Settings
Process Timers
Moisture 01:00:00
Ash 04:00:00
VM 00:07:00
Operating Controls
Device Type Proximate Inter-
face
LCD Backlight Timeout 1200
LCD Backlight Intensity 90%
Language English
Program Information & Control
User Setup ID 00000001
Settings Protect Off
Data Entry Controls
Auto Sample ID Controls On
Verify Data On
BTU/Spike Tare Zero
Moisture and Ash Separate
ADL Prompt Order Tare-Gross-Final
FSI Units Fahrenheit
Auto Sample ID Controls
Automatic Sample ID On
Next Auto Sample ID Number 1
Auto Sample ID Increment 1
Data Source Controls
ADL/Total Moisture Source Touchscreen
Moisture Source Touchscreen
Ash Source Touchscreen
Volatile Matter Source Touchscreen
Spike Weight Source Touchscreen
Sulfur Source Touchscreen
BTU Source Touchscreen
BTU Weights Source Touchscreen
Reporting Controls
Report Width 40
Report Format Text
Individual Printed Reports Off
Edit Final Reports Off
Report Inclusions
BTU On
BTU Weights On
Sulfur On
Moisture On
Ash On
Volatile Matter On
ADL/Total Moisture On
FSI On
Ash Fusion On
Spike Weight On
Balance Port Communications
Balance Type Generic
Balance Port Device /dev/ttyUSB0
Balance Port Settings
Number of Data Bits 8
Parity None
Number of Stop Bits 1
Handshaking None
Baud Rate 9600
Characters from Balance 8
Data Precision 4
Transfer T imeout (seconds) 10
Network Communications
DHCP (Automatic Setup) Off
Network Driver Off
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Parr Instrument Company
Proximate Interface
Menu Operating Pages
The 6750 Proximate Interface contains the following keys that lead to sub-menus.
Process Timers
popup is displayed and the prior alarm is queued
underneath it.
The lower portion of the Timers page displays
the current date and time.
Operating Controls
Many of the tests involving proximate analysis
require holding the sample at a set temperature for
a pre-set time. As a result, a series of three independent countdown timers are provided. By default
these timers are labeled Moisture, Ash, and VM after
the most popular items to time. Each timer has three
buttons associated with it. The fi rst button starts and
stops the timer (toggle). The timer value is displayed
to the right of the label in a HH:MM:SS format.
The next button is a reset button that will reload
the timer preset value when the timer is not running. When the timer is running the reset button is
not active.
The third button associated with each timer is a
setup button that leads to a submenu. The submenu
allows the user to change the label and duration
for a timer. Each timer has a series of tones that are
sounded when the timer reaches zero. This alarm is
repeated indefi nitely until it is acknowledged.
When the timer reaches zero, the backlighting is
turned on, if required, and a popup box is displayed
in order to allow acknowledgment of the alarm.
The popup box displays the timer tag. Pressing the
continue button inside the large popup box provides
alarm acknowledgment. If an alarm occurs before an
active one is acknowledged, the most recent alarm
Device Type:
This key allows the user to customize the operation
of the device. Various screens and related prompts
will change depending on what type of device is selected. This setting also determines how the device
is confi gured in a networked environment.
The device options available are:
t Proximate Interface
t ADL Interface
t Total Moisture Interface
t Balance Interface
t Moisture Interface
t Ash Interface
t Volatile Interface
User Function Setup:
This key leads to sub-menus that support the confi guration of fi ve factory/user defi nable function keys.
The function keys are accessible from the Diagnostics page.
Calibrate Touchscreen:
This key prompts the user to touch the screen
at predefi ned points in order to facilitate touch
screen calibration. It’s important that a touch screen
stylus, rather than a fi nger, be used in order to realize an accurate calibration.
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9
Proximate Interface
Operating Controls (Continued)
LCD Backlight Timeout:
The unit is equipped with an automatic circuit to
shut-off the backlight when it is not being used. The
back light will shut-off if there is no keyboard activity for the number of seconds entered. Touching the
screen will automatically turn the back lighting ON.
A setting of 0 will keep the backlight ON at all times.
LCD Backlight Intensity:
This button provides a slider control that allows
the user to adjust the display backlight intensity for
optimum viewing.
Print Error Messages:
When turned ON, all error messages are printed on
the printer as well as displayed on the screen.
Language:
This button steps the calorimeter through the installed operating languages.
t Time Zone. Displays the selected time zone
in relation to Greenwich Mean Time. Pressing this key will step through the time
zones and automatically adjust the time
setting.
Volume Level Adjust:
Opens a window with a slide adjustment to set the
volume of the key clicks and alarms of the calorimeter. Default is 85%.
Program Information and Controls
Date & Time:
Accesses a sub-menu to set the current date and
time.
t Date. Displays current date and accesses
sub-menu on which date is set in (YY/MM/
DD) format.
Software and Hardware Info:
This screen displays important information such as
the main software version, I/O board information,
CPU information, and IP address assigned.
Settings Protect:
Provides protection for the program options and
settings on the menus. If this is turned ON, the user
will be warned that enumeration keys are locked
when a key is pressed. Enumeration Keys either
toggle a value (ON/OFF) or select from a predefi ned
list. This feature is used primarily to protect the
instrument settings from accidental changes if one
were to inadvertently touch or bump up against the
touchscreen.
t Time. Displays current time and accesses
sub-menu on which time is set in (HH:MM)
format.
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Parr Instrument Company
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