Parr Instrument 6772 Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Parr Instrument Manuals
  4. Thermometer
  5. 6772
  6. Operating instructions manual

Parr Instrument 6772 Operating Instructions Manual

Calorimetric thermometer
Hide thumbs
Table of Contents

Advertisement

Quick Links

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

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 6772 and is the answer not in the manual?

Questions and answers

Summary of Contents for Parr Instrument 6772

  • Page 1 Operating Instruction Manual 591M 6772 Calorimetric Thermometer Operating Instruction Manual For models produced after November 2010...

  • Page 2: Table Of Contents

    6772 Calorimetric 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....................
  • Page 3 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..............

  • Page 4: Table Of Contents

    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.

  • Page 5: Explanation Of Symbols

    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.

  • Page 6: Provisions For Lifting And Carrying

    6772 Calorimetric Thermometer Instruction Manual 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...

  • Page 7: Installation

    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.

  • Page 8: Thermistor Probe Installation

    Calorimetric Thermometer Instruction Manual 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.

  • Page 9: 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.

  • Page 10: Mettler 011/012 Interface

    6772 Calorimetric Thermometer Instruction Manual 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.

  • Page 11: Computer Connections

    Information and Control” key from the Main Menu. Next, select “Feature Key” and enter the feature key purchased from Parr Instrument Company into the instrument by using the touchpad. Pressing the key labeled “ABC” allows the user to switch from upper case letters, to lower case letters and finally to numerals.
  • Page 12 6772 Calorimetric Thermometer Instruction Manual The following screenshot illustrates the contents of the Calorimetric Thermometer data directory as presented by a web browser. You can drag and drop or copy and paste test data files (with the csv suffix) from the web...
  • Page 13 6772 Calorimetric Thermometer Instruction Manual The Calorimetric Thermometer offers a web server service. Test reports can be viewed with a web browser using a URL of the following form. http://192.168.0.125 Where 192.168.0.125 is the IP address of the Calorimetric Thermometer. The following...
  • Page 14 6772 Calorimetric Thermometer Instruction Manual Clicking on the Config tab displays some of the configuration options available in the 6772. Changes made on this page will change the settings in the 6772.
  • Page 15 6772 Calorimetric Thermometer Instruction Manual Clicking on the Run Data tab displays a list of reports currently in the instrument memory. Clicking on any given report will provide a display similar to the following:...
  • Page 16 6772 Calorimetric Thermometer Instruction Manual Clicking on System Info will bring up the Software and Hardware Info screen from the 6772. 2-10...
  • Page 17 Clicking on the LCD Snapshot Page will bring up an image of the current display on the 6772. Note that this is a picture only. To operate the 6772 from a PC a Remote Feature Key must be installed. Please contact Parr Instrument Company for more details.
  • Page 18 6772 Calorimetric Thermometer Instruction Manual Clicking on Documentation will provide links to the manual and other helpful documents. Note: a connection to the Internet is required to access the documentation. 2-12...

  • Page 19: Quick Start

    Oxygen Bomb are given in the operating instructions, manual number 205M. Follow these instructions carefully, giving particular attention to the precautions to be observed in charging and handling the bomb. The default values of the 6772 are designed to operate with the 1341 Plain Jacket calorimeter.
  • Page 20 6772 Calorimetric Thermometer Instruction Manual ID number, sample ID number, sample weight and spike weight in accordance with the instructions set into the operating controls page. 8. The thermometer will now take over and conduct the test. During the time it is establishing the initial equilibrium, it will display PREPERIOD on the status bar.

  • Page 21: Operation

    6772 Calorimetric Thermometer Instruction Manual OPERATION Menu System All configurations 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.

  • Page 22: Programming

    Programming The program in the 6772 Calorimetric Thermometer can be extensively modified to tailor the unit to a wide variety of operating conditions, reporting units, laboratory techniques, available accessories and communication modes.

  • Page 23: Manual Test Sequencing

    6772 Calorimetric Thermometer Instruction Manual corrections to the calorimeter temperature rise in order to correct for all systemic heat leak effects. In either case the operator must determine the appropriate temperature source for the jacket. • Probe – This method uses an additional 1168E2 thermistor probe attached to the...
  • Page 24 Place the calorimeter cover on the calorimeter jacket. This immerses the stirrer and thermistor probe in the bucket. Ensure that the stirrer motor and ignition leads are connected to the rear of the 6772 Calorimetric Thermometer. After the calorimeter is fully assembled with a charged bomb, turn on the motor, and then turn on the stirrer by pressing the stirrer key on the calorimeter operation menu screen.

  • Page 25: Automatic Test Sequencing

    6772 Calorimetric Thermometer Instruction Manual and combustion capsule) with a jet of distilled water and collect the washings in a beaker. Remove all unburned pieces of fuse wire from the bomb electrodes; straighten them and measure their combined length in centimeters. Subtract this length from the initial length of 10 centimeters and multiply this burned length by 2.3 calories per cm (for Parr 45C10 Fuse...
  • Page 26 6772 Calorimetric Thermometer Instruction Manual Remove all unburned pieces of fuse wire from the bomb electrodes; straighten them and measure their combined length in centimeters. Subtract this length from the initial length of 10 centimeters and multiply this burned length by 2.3 calories per cm (for Parr 45C10 Fuse Wire) to obtain the fuse correction.

  • Page 27: Menu Descriptions

    6772 Calorimetric Thermometer Instruction Manual MENU DESCRIPTIONS Note: Keys which make global changes to the setup of the calorimeter contain a YES or NO response to make certain that the user wishes to proceed. This two step entry is intended to prevent inadvertent global program changes.

  • Page 28: Temperature Vs. Time Plot

    6772 Calorimetric Thermometer Instruction Manual Start Preweigh: This key is used to start the sample preweigh process. The user is presented with or prompted for a sample ID. Next, the user is asked to key in the associated sample mass or alternatively the mass is retrieved from a connected balance.

  • Page 29: Operating Controls Menu

    6772 Calorimetric Thermometer Instruction Manual Time Units: Toggles between minutes and seconds. Bucket Plot Color: Toggles between: • • Green • Yellow • Blue • Magenta • Cyan • White • Black Bucket Max Value: Press this key to access its numeric dialog box to set a maximum bucket value.

  • Page 30: Spike Controls

    6772 Calorimetric Thermometer Instruction Manual Jacket Temp. Source: Press this key to display a menu that allows the user to select the source for the jacket temperature used for tests. “Other” Multiplier: Press this key to display the Other Multiplier dialog box, where the user can enter a final multiplier to be used when the reporting units are set to “Other”.

  • Page 31: Program Information And Control Menu

    6772 Calorimetric Thermometer Instruction Manual Weight of Fixed Spike: The weight of the fixed spike is entered on sub-menu keyboard. Normally the Calorimetric Thermometer will prompt the user for the weight of the sample and then the weight of the spike.
  • Page 32 Bomb Type Select: Not currently configured for the 6772 changes for different bomb types are loaded by changing the User Setup ID and Reload User Default Settings. User Function Setup: This key leads to sub menus that support the configuration of five factory/user definable function keys.

  • Page 33: Calibration Data And Controls Menu

    6772 Calorimetric Thermometer Instruction Manual Cold Restart: This is essentially the same as cycling power on the unit. All valid test data will be retained during this cold restart procedure. Calibration Data and Controls Menu Calibration Run Limit: Displays the maximum number of runs that...
  • Page 34 In relation to calorimetry, sigma is used as the classification of the instrument. The higher the process sigma the higher the limits for acceptable values for precision control. The Process Sigma of the 6772 will depend on the application. • Temp. Rise High Warning: Sets the high warning limit on the bucket temperature rise.
  • Page 35 8 characters. Protect EE Value: Toggles between OFF and ON. When set to OFF, the 6772 automatically updates the EE value as new tests are run. When set to ON, it keeps the EE value protected, whether it has been revised manually via the Manual EE Entry key or calculated by the instrument.

  • Page 36: Thermochemical Corrections Menu

    When any fixed correction is set to ON, the specified value will be used in the final reports, and the 6772 will not prompt for actual corrections to be entered. (If all corrections are fixed, then preliminary and final reports will be identical).

  • Page 37: Determination Correction

    6772 Calorimetric Thermometer Instruction Manual Calculation Factors: Accesses the Calculation Factors sub-menu, which provides for setting a number of options for the way the thermochemical corrections are applied. Determination Correction Fixed Fuse Correction: Press this key on the LEFT side to toggle ON or OFF the fixed fuse correction for determination runs.

  • Page 38: Calculation Factors Menu

    6772 Calorimetric Thermometer Instruction Manual Calculation Factors Menu Nitric Acid Factor: Ratio of the nitric acid correction when the released energy corresponds to 6318 calories. The default is 1.58 calories per 1000 calories of released energy. Acid Multiplier: This multiplier is the normality of the sodium carbonate used to titrate for the acid correction.

  • Page 39: Net Heat/Dry Heat Factors

    6772 Calorimetric Thermometer Instruction Manual Net Heat/Dry Heat Factors Fixed Hydrogen: ON/OFF and value entry. Fixed Oxygen: ON/OFF and value entry. Fixed Nitrogen: ON/OFF and value entry. Calculate Net Heat of Combustion: ON/OFF. Turn On to have the calorimeter calculate the net heat of combustion.
  • Page 40 6772 Calorimetric Thermometer Instruction Manual Automatic Sample ID: When set to ON the unit will automatically assign sample identification numbers in accordance with parameters set by the other three keys on this menu. When set to OFF, the user manually enters each sample ID when prompted to do so.

  • Page 41: Reporting Controls Menu

    6772 Calorimetric Thermometer Instruction Manual Auto Preweigh Controls: Accesses sub-menu, used to automatically assign Sample ID numbers when a series of samples are preweighed ahead of the time they are actually tested. Automatic Preweigh ID: ON/OFF toggle for this feature.

  • Page 42: Communication Controls Menu

    6772 Calorimetric Thermometer Instruction Manual Recalculate Final Reports: When set to ON, causes a recalculation of stored final reports using calibration data and menu settings currently in the Calorimetric Thermometer. When set to OFF, the stored final reports are not affected by the current run.

  • Page 43: File Management Menu

    6772 Calorimetric Thermometer Instruction Manual • Data Characters from Balance. This setting is only used when the generic balance format is selected. This value determines the number of numeric data characters (0-9 . + -) to accept. Any additional characters after this value and before the string terminating <CR>...

  • Page 44: Run Data File Manager

    6772 Calorimetric Thermometer Instruction Manual Copy Run Data to SD Card: This key copies all test data to a SD memory card inserted into the rear of the calorimeter controller. This feature is used as a means of either archiving data or transferring it to a PC.

  • Page 45: Diagnostics Menu

    6772 Calorimetric Thermometer Instruction Manual Diagnostics Menu Provides the user with the means to test many of the components and subsystems of the Calorimetric Thermometer. These capabilities should be used in conjunction with this instruction manual in order to obtain the maximum benefits from these capabilities.
  • Page 46 6772 Calorimetric Thermometer Instruction Manual Select Data Log Items: Press this key to access the Data Log Items sub-menu, which provides keys for fifteen items that can be individually selected for logging. By default, both the bucket and jacket temperatures are logged. All records are date and time stamped.
  • Page 47 Press this key to display its I/O Diagnostics sub-menu, which allows the user to manipulate digital outputs for troubleshooting. (Not all functions are available with the 6772). The I/O Diagnostics screen is used to display the digital outputs at a basic level for troubleshooting.

  • Page 48: Calculations

    Benzoic acid is an excellent material for spiking for all of the same reasons it is a good standard material. White oil is also an excellent material, particularly for liquid samples. The 6772 Calorimetric Thermometer can automatically compensate for the addition of spiking materials to these samples. The calculations are modified in these cases as follows: −...

  • Page 49: Manual Vs. Fixed Corrections

    6772 Calorimetric Thermometer Instruction Manual acid value. Total errors of more than 3 calories will seldom occur when using fixed nitric acid corrections. Sulfur Correction In the oxygen rich atmosphere within the bomb, sulfur in the sample is oxidized to sulfur trioxide which combines with water vapor to form sulfuric acid.

  • Page 50: Definitions

    6772 Calorimetric Thermometer Instruction Manual Fixed Corrections In many cases, fixed values for fuse and acid can be used without introducing a significant error since the corrections are both relatively small and constant. Fixed sulfur corrections can also be used whenever a series of samples will be tested with a reasonably constant sulfur content.
  • Page 51 = (percent sulfur)(sample mass)(sulfur multiplier)(heat of formation of H2SO4). Acid Correction: In the 6772 there are a number of settings for the acid correction. e1 is the nitric acid portion of the correction. Fixed HNO3: The Acid Correction is a fixed value set by the operator.
  • Page 52 6772 Calorimetric Thermometer Instruction Manual e1 = [((25)(.0709)) – (2)(1)(.6238)] 14.1 e1 = [(1.7725) – (1.2476)] 14.1 e1 = [.5249] 14.1 e1 = 7.40109 calories When the Acid Correction is set to Fixed Total the value is considered a final value and the operator is not prompted for an acid value when reporting the results.

  • Page 53: Astm, Iso And Other Methods

    The 6772 Calorimetric Thermometer can be set up to apply the acid correction by either the ASTM or ISO convention, as the user prefers. Care must be used to ensure the proper corrections are applied, and the calculations made are consistent with the procedure used.

  • Page 54: Conversion To Other Moisture Bases

    6772 Calorimetric Thermometer Instruction Manual The values for fixed acid and sulfur, which are used in preliminary reports, will reflect a sulfur correction of 0, and a nitric acid correction of 10 calories. Conversion to Other Moisture Bases The calculations described previously give the calorific value of the sample with moisture as it existed when the sample was weighed.

  • Page 55: Reports

    Calorimetric Thermometer Instruction Manual REPORTS The 6772 Calorimetric Thermometer can transmit its stored test data in either of two ways. The Auto Report Destination key on the Reporting Controls Menu toggles the report destination between the display and an optional printer connected to the USB port of the Calorimetric Thermometer.
  • Page 56 6772 Calorimetric Thermometer Instruction Manual The EDIT key brings up a sub-menu which enables the operator to edit any of the data in the report or add thermochemical corrections to convert preliminary reports to final reports. Final reports can only be edited if Edit Final Reports on the Reporting Controls Menu is turned on.

  • Page 57: Memory Management

    A series of files can be deleted by selecting the first file in the series and then the last file in the series using the EXTEND SEL key and then pressing the DELETE key. The controller of the 6772 Calorimetric Thermometer can accept SD memory cards. These cards can be used to: •...

  • Page 58: Maintenance

    Pry up on the back lip of the cover and carefully hinge it forward. Make sure that the cables attached to the front portion of the cover do not become stretched or disconnected. Follow this procedure in reverse order to re-secure the front cover. There is no routine maintenance recommended for the 6772 Calorimetric Thermometer.

  • Page 59: Troubleshooting

    6772 Calorimetric Thermometer Instruction Manual TROUBLESHOOTING Error List The calorimeter will run a number of diagnostic checks upon itself and will advise the operator if it detects any error conditions. Most of these errors and reports will be self- explanatory. The following list contains errors that are not necessarily self-evident and suggestions for correcting the error condition.
  • Page 60 6772 Calorimetric Thermometer Instruction Manual substitution can be useful in determining the cause of the problem (probe or electronics). The valid working range of the probe resistance is 1000 to 5000 ohms. A / D Initialization Failed. Shortly after power is applied to the calorimeter controller and the operating system has started, the CPU attempts to read the unique IO board calibration information from the IO board.

  • Page 61: Technical Service

    If you have not saved the original carton and traps, please request a packaging return kit. We prefer the calorimeter to be shipped in our cartons and traps to prevent shipping damage. Ship repair to: Parr Instrument Company Attn: Service Department, RMA# XXXX 211- 53rd Street Moline, Illinois 61265...

  • Page 62: Parts List

    6772 Calorimetric Thermometer Instruction Manual PARTS LIST Principal Assemblies in 6772 Calorimetric Thermometer Part Number Description 1940E Power Supply A2141E LCD Transition Board A2154E4 CPU Board A2140E I/O Board A2166E Cable, I/O to CPU USB A2167E Cable, USB Peripheral 2147E...

  • Page 63: Drawings

    6772 Calorimetric Thermometer Instruction Manual DRAWINGS 6772 Schematic 13-1...

  • Page 64: Internal Parts View Of 6772 Calorimetric Thermometer

    6772 Calorimetric Thermometer Instruction Manual Internal Parts View of 6772 Calorimetric Thermometer 13-2...
  • Page 65 6772 Calorimetric Thermometer Instruction Manual Internal Parts View of 6772 Calorimetric Thermometer Note: 1262DD Capacitor Bracket and 897E Capacitor not shown for clarity. 13-3...

  • Page 66: Back Panel Of 6772 Calorimetric Thermometer

    6772 Calorimetric Thermometer Instruction Manual Internal Parts View of 6772 Calorimetric Thermometer Back Panel of 6772 Calorimetric Thermometer 493E Plug with 3280HC Retainer installed to insulate from live circuits when no motor is attached. 13-4...

  • Page 67: Tables

    6772 Calorimetric Thermometer Instruction Manual TABLES Table 1 – Default Settings Calorimeter Operation Determination Operating Mode Determination Fixed Fuse Correction ON 15 Bomb Installed/EE 1/2400 Acid Correction Fixed HNO 10.0 Stirrer Fixed Sulfur Correction OFF 0.0 Calculate Net Heat of Combustion...
  • Page 68 6772 Calorimetric Thermometer Instruction Manual Table 1 - Continued Diagnostics Reporting Controls Calorimetry Parameters Report Width Tolerance (L) Parameters Automatic Reporting Preperiod Tolerance (L1) 0.002 Auto Report Destination Printer Mis-Fire Tolerance (L2) 0.05 Individual Printed Reports Dynamic Postperiod Tolerance (L3) 0.002...

  • Page 69: Table 2 – Iso & Bsi Method Settings

    6772 Calorimetric Thermometer Instruction Manual Table 2 – ISO & BSI Method Settings Page Line Setting Value Entered Acid Correction (STD) HNO3 Thermochemical Corrections Fixed Sulfur STD Entered Acid Correction (DET) HNO3 Fixed Sulfur DET Acid Multiplier 0.154 Sulfur Value is Percent...
  • Page 70 PARR INSTRUMENT COMPANY 211 Fifty - Third Street Moline, Illinois 61265 USA 309 / 762-7716 800 / 872-7720 Fax 309 / 762-9453 http://www.parrinst.com parr@parrinst.com Revision 12/10/10...

Table of Contents