Parr Instrument 6772 Instruction Manual

Operating Instruction Manual 591M
6772
Calorimetric Thermometer
Operating Instruction Manual
For models produced after November 2010

6772Calorimetric Thermometer Instruction Manual
TABLE OF CONTENTS
TABLE OF CONTENTS....................................................................................................... 1-1
PREFACE ............................................................................................................................ 1-1
Scope................................................................................................................................ 1-1
Explanation of Symbols.................................................................................................... 1-2
Provisions for Lifting and Carrying................................................................................ 1-3
INSTALLATION ................................................................................................................... 2-1
Power Connection ............................................................................................................ 2-1
Motor Connection ............................................................................................................. 2-1
Thermistor Probe Installation............................................................................................2-2
Communication Connection.............................................................................................. 2-3
Printer Connections .......................................................................................................... 2-3
Balance Connections........................................................................................................ 2-3
Mettler 011/012 Interface............................................................................................ 2-4
Sartorious Interface.................................................................................................... 2-4
Generic Interface ........................................................................................................ 2-4
Bar Code Port...................................................................................................................2-4
Computer Connections..................................................................................................... 2-5
QUICK START.....................................................................................................................3-1
OPERATION ........................................................................................................................ 4-1
Menu System....................................................................................................................4-1
Menu Keys........................................................................................................................ 4-1
Control Keys..................................................................................................................... 4-1
Programming....................................................................................................................4-2
Default Settings ................................................................................................................4-2
Performing an analysis..................................................................................................... 4-2
Manual Test Sequencing.............................................................................................. 4-3
Automatic Test Sequencing.......................................................................................... 4-5
MENU DESCRIPTIONS....................................................................................................... 5-1
Main Menu........................................................................................................................ 5-1
Calorimeter Operation Menu ............................................................................................ 5-1
Temperature vs. Time Plot ............................................................................................... 5-2
Temperature Plot Setup Menu.......................................................................................... 5-2
Operating Controls Menu.................................................................................................. 5-3
Spike Controls ..................................................................................................................5-4
Program Information and Control Menu ...........................................................................5-5
Date & Time Settings:....................................................................................................... 5-5
Calibration Data and Controls Menu................................................................................. 5-7
Thermochemical Corrections Menu................................................................................5-10
Standardization Correction...................................................................................... 5-10
Determination Correction ........................................................................................ 5-11
Calculation Factors Menu............................................................................................... 5-12
Net Heat/Dry Heat Factors .............................................................................................5-13
Data Entry Controls Menu ..............................................................................................5-13
Reporting Controls Menu................................................................................................5-15
Communication Controls Menu ......................................................................................5-16
File Management Menu.................................................................................................. 5-17
Run Data File Manager................................................................................................... 5-18

6772Calorimetric Thermometer Instruction Manual
Diagnostics Menu........................................................................................................... 5-19
CALCULATIONS ................................................................................................................. 6-1
Corrections ....................................................................................................................... 6-1
Manual vs. Fixed Corrections........................................................................................... 6-2
Definitions......................................................................................................................... 6-3
ASTM, ISO and Other Methods........................................................................................6-6
Conversion to Other Moisture Bases................................................................................6-7
Conversion to Net Heat of Combustion............................................................................ 6-7
REPORTS ............................................................................................................................ 7-1
MEMORY MANAGEMENT .................................................................................................. 8-1
MAINTENANCE................................................................................................................... 9-1
TROUBLESHOOTING....................................................................................................... 10-1
Error List......................................................................................................................... 10-1
TECHNICAL SERVICE...................................................................................................... 11-1
Contact Us...................................................................................................................... 11-1
Return for Repair............................................................................................................11-1
PARTS LIST....................................................................................................................... 12-1
Principal Assemblies in 6772 Calorimetric Thermometer............................................... 12-1
DRAWINGS........................................................................................................................ 13-1
6772 Schematic.............................................................................................................. 13-1
Internal Parts View of 6772 Calorimetric Thermometer.................................................. 13-2
Internal Parts View of 6772 Calorimetric Thermometer.................................................. 13-3
Back Panel of 6772 Calorimetric Thermometer..............................................................13-4
TABLES ............................................................................................................................. 14-1
Table 1 – Default Settings .............................................................................................. 14-1
Table 2 – ISO & BSI Method Settings ............................................................................14-3

6772Calorimetric Thermometer Instruction Manual
1-1
PREFACE
Scope
This manual contains instructions for installing and operating the Parr 6772 Calorimetric
Thermometer with the 1341 Plain Jacket Calorimeter. For ease of use, the manual is divided
into 13 chapters.
Installation
Quick Start
Operation
Menu Descriptions
Calculations
Reports
Memory Management
Maintenance
Troubleshooting
Technical Service
Parts Lists
Drawings
Tables
Subsections of these chapters are identified in the Table of Contents.
To assure successful installation and operation, the user must study all instructions carefully
before starting to use the Calorimetric Thermometer to obtain an understanding of the
capabilities of the equipment and the safety precautions to be observed in the operation.
Additional instructions concerning the installation and operation of various component parts
and peripheral items used with the 6772 Calorimetric Thermometer should be made a part of
these instructions. Additional instructions for the optional printer are found in the respective
printer package and should be made a part of this book.
No. Description
201M Limited Warranty
204M Operating Instructions for the 1341 Oxygen Bomb Calorimeter
205M Operating Instructions for the 1108 Oxygen Combustion Bomb
207M Analytical Methods for Oxygen Bombs
230M Safety in the Operation of Laboratory and Pressure Vessels
483M Introduction to Bomb Calorimetry
This manual contains detailed instructions related to oxygen bomb calorimetry,
standardization of the Calorimetric Thermometer, combustion techniques, and
thermochemical corrections. These are included in this manual to help the user understand
how the 6772 handles these functions when used with the Parr 1341 Plain Jacket
Calorimeter.

6772Calorimetric Thermometer Instruction Manual
1-2
Note:
The unit of heat used in this manual is the International Table (IT)
calorie, which is equal to 4.1868 absolute joules.
Specific instructions for use of the 6772 with the Solution Calorimeter, Model 6755 are
included in manual number 593M. Instructions for using the 6772 Calorimetric Thermometer
with the 6725 Semimicro Calorimeter are included in manual number 592M.
Explanation of Symbols
I On position
O Off position
~Alternating Current (AC)
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.
Protective Earth (PE) terminal. Provided for connection of the Protective
Earth (green or green/yellow) supply system conductor.
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 fire 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 flammable or combustible materials; fire or explosion
may result. This device contains components which may ignite such material.
2. Refer servicing to qualified personnel.

6772Calorimetric Thermometer Instruction Manual
1-3
Intended Usage
If the instrument is used in a manner not specified by Parr Instrument Company, the protection
provided by the equipment may be impaired.
General Specifications
Electrical Ratings
115VAC, 1.0 Amp, 50/60 Hz
230VAC, 1.0 Amp, 50/60 Hz
Before connecting the Thermometer 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: Calorimeters 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
calorimeter by more than 10 percent.
Environmental Conditions
This apparatus is to be used indoors.
Operating: 15 ºC to 30 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.
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.
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 specifically 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.
Specifications
Probe type Thermistor
Thermometer range 10-50 °C
Resolution 0.0001 °C
Absolute accuracy
without calibration
with calibration
+/- 0.100 °C
+/- 0.0500 °C
Repeatability,
single point +/- 0.002 °C
Linearity, 10 °C span +/- 0.002 °C
Communications port Ethernet
Data logging capacity 1MB (~10000 points)

6772Calorimetric Thermometer Instruction Manual
2-1
INSTALLATION
Power Connection
Plug the power line into any grounded outlet providing proper voltage that matches the
specification on the nameplate of the Calorimetric Thermometer. The thermometer will draw
approximately 100 watts of power. Grounding is very important not only as a safety
measure, but also to ensure satisfactory controller performance. If there is any question
about the reliability of the ground connection through the power cord, run a separate earth
ground wire to the controller chassis.
Turn the power switch to the on position. After a short time, the Parr logo will appear on the
LCD display followed by a running description of the instrument boot sequence. When the
boot sequence is complete, the 6772 Calorimetric Thermometer Main Menu is displayed.
Motor Connection
Disconnect power before connecting a motor to the Calorimetric Thermometer. Remove
493E Plug with 3280HC Retainer and attach the motor cord to the rear of the calorimeter
case using the mounting screws provided for safety purposes.
Figure 1
6772 Calorimetric Thermometer Back Panel
493E Plug
with 3280HC
Retainer installed to
insulate from live
circuits when no
motor is attached.

6772Calorimetric Thermometer Instruction Manual
2-2
Thermistor Probe Installation
Connections for two thermistor probes are located on the back of the 6772 Calorimetric
Thermometer. If only one probe is to be used, connect it to the “bucket” connection. The
6772 Calorimetric Thermometer includes an ignition unit for automatically firing the bomb in
the 1341 calorimeter. The ignition leads to the thermometer need to be connected to the red
and black terminals marked “Ignition” on the back of the thermometer to take advantage of
this feature. The thermistor probe should be set so the bottom tip is 6 inches below the
underside of the calorimeter cover. Connect the A1877E (2) extension cord from the motor
to the 6772.
Figure 2
Electrical Hookup of 6772 Calorimetric Thermometer to 1341 Calorimeter

6772Calorimetric Thermometer Instruction Manual
2-3
Communication Connection
There is a USB connection on the rear of the 6772 to facilitate printer and balance
connections.
The 6772 will also allow the user to specify the IP addresses of one or more Balance
Interface devices on the network by selecting the Network Data Device menu in the
Communications Controls menu. Balance Interface devices are polled from device 1 to 15
for sample and / or spike weights when the weight entry mode is set to Network.
Printer Connections
The printer type setting is on the Communication Controls Menu. The default parameters for
the 6772 Calorimetric Thermometer are set up for use with the Parr 1758 Printer.
Balance Connections
The 6772 Calorimetric Thermometer supports input from the multiple balance types.
Additionally, a generic input driver is provided for communications with balances that do not
conform to the eight supported protocols. A new feature supported by all balance input drivers
is the ability to change the expected number of characters in the data field. The number of data
characters indicated for each of the drivers, below, are default values. This feature virtually
eliminates the need for balance input drivers to be re-written in the event the balance
manufacturer elects to alter the output string of a balance when new models are introduced.

6772Calorimetric Thermometer Instruction Manual
2-4
The format of an unknown balance can be determined by logging the balance output to the
printer attached to the Calorimetric Thermometer. Those protocols which send a command
string to the balance will do so while logging is active. In order for the logging to produce
meaningful results, the cable connecting the balance to the balance input port of the
Calorimetric Thermometer must be correctly wired or configured. In addition, the specifics of
the data frame, such as the baud rate, # of data bits, parity, # of stop bits and handshaking (if
used) must be the same for both the balance and the Calorimetric Thermometer.
Mettler 011/012 Interface
The ID field must contain “S_” to
indicate a stable mass. The data field
contains the current mass, right
justified, with a decimal point. The
balance should be configured to send
continuously.
Sartorious Interface
The polarity field must contain either a
“+” or a space. Leading zeros in the
data field are blanked, except for the
one to the left of the decimal point.
The stability field must contain “g_” for
the Calorimetric Thermometer to
accept a mass. The balance should be
configured to transmit data upon
receipt of the following command
string:
[ESC] P [CR] [LF]
Note:
The automatic data output option should not be used.
The Calorimetric Thermometer will send this command string once every few
seconds after the ENTER key has been pressed during a mass entry sequence.
The ENTER key should only be pressed when the mass reading is stable.
Generic Interface
The data field should consist of 9
numeric characters (0 through 9, +, -
and space) terminated with a carriage
return (CR). Leading zeros may be
blanked as spaces and are counted. Non-numeric characters are ignored and will
reset the input buffer if the data field has not been filled. Any characters received
after filling the data field and before the carriage return are ignored.
Bar Code Port
The use of barcodes in the laboratory has become a highly accurate, rapid and inexpensive
way to identify samples. When purchasing this feature, the user must supply Parr with the
MAC address of the calorimeter (found in the Software & Hardware Info menu screen). This
Field Length
ID 2
space 1
data 9
space 1
g 1
CR 1
LF 1
Field Length
polarity 1
space 1
data 8
space 1
stability 2
CR 1
LF 1
Field Length
data 8
CR 1