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Summary of Contents for parr 6772
- Page 1 6772 Calorimetric Thermometer Operating Instruction Manual...
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Page 2: Table Of Contents
Motor Connection Operating Controls 6772 Calorimetric Thermometer (Back Panel) Spike Controls Thermistor Probe Installation Program Information & Control 6772 Electrical Hookup to 1341 Plain Jacket Calorimeter User/Factory Settings Communication Connection Calibration Data and Control Printer Connections Bomb 1 Balance Connections... - Page 3 Acid Correction CHAPTER 9 ASTM, ISO and Other Methods PARTS LISTS & DRAWINGS ASTM 6772 Parts List Acid Correction External Parts View - Top, Side, and Bottom View Internal Parts View Conversion to Other Moisture Bases LCD Display, Internal Parts View...
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Page 4: Scope
International Table (IT) calorie, which is equal to served in the operation. 4.1868 absolute joules. Specific instructions for use of the 6772 with the Note About Nomenclature: Historically, burning Solution Calorimeter, Model 6755 are included a sample enclosed in a high pressure oxygen in manual number 741M. -
Page 5: Explanation Of Symbols
Preface Explanation of Symbols Safety Information To avoid electrical shock, always: On Position 1. Use a properly grounded electrical outlet of correct voltage and current handling capability. Off Position 2. Ensure that the equipment is connected to Alternating Current (AC) electrical service according to local national electrical codes. -
Page 6: General Specifications
Preface General Specifications Provisions for Lifting and Carrying Before moving the instrument, disconnect all Electrical Ratings 115 VAC, 1.0 Amp, 50/60 Hz connections from the rear of the apparatus. Lift the 230 VAC, 1.0 Amp, 50/60 Hz instrument by grabbing underneath each corner. Before connecting the Thermometer to an electrical Cleaning and Maintenance outlet, the user must be certain that the electrical... -
Page 7: Installation
When the boot sequence on the nameplate of the Calorimetric Thermometer. is complete, the 6772 Calorimetric Thermometer The thermometer will draw approximately 100 W of Main Menu is displayed. power. Grounding is very important not only as a safety measure, but also to ensure satisfactory con- troller performance. -
Page 8: 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 oxygen combustion vessel in the 1341 calorimeter. -
Page 9: Communication Connection
Communication Connection Mettler 011/012 Interface Field Length The ID field must contain There is a USB connection on the rear of the 6772 “S_” to indicate a stable to facilitate printer and balance connections. space mass. The data field con-... -
Page 10: Ethernet Interface
Alternatively, a PC can be connected directly to the 6772 Calorimetric Thermometer via an Ethernet The HOSTNAME button on the network configura- Cable. Both PC and 6772 must be assigned static IP tion screen allows the user to give a meaningful addresses from the same subnet (e.g. 192.168.1.125 name to the calorimeter, such as _ 1341-lab. - Page 11 Clicking on the Config tab displays some of (with the csv suffix) from the web browser window to the configuration options available in the 6772. any convenient folder or directory on the PC. Changes made on this page will change the set- tings in the 6772.
- Page 12 Clicking on the LCD Snapshot Page will bring up ports currently in the instrument memory. Clicking an image of the current display on the 6772. Note on any given report will provide a display similar that this is a picture only. To operate the 6772 to the following: from a PC a Remote Feature Key must be installed.
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Page 13: Optional Feature Keys
The use of barcodes in the laboratory has become Remote Operation a highly accurate, rapid and inexpensive way to The 6772 can be operated remotely via PC over a identify samples. The only scanner currently sup- network with the purchase of the 1965E Remote ported is part no. -
Page 14: Program Installation & Control
Operating Mode Determination Bomb Installed/EE 1/2400.0 Stirrer Programming T he program in the 6772 can be extensively modified OPERATING CONTROLS to tailor the unit to a wide variety of operating Method of Operation Combustion conditions, reporting units, laboratory techniques, Reporting Units BTU/lb available accessories and communication modes. - Page 15 6772 Program Installation & Control COMMUNICATION CONTROLS Calculation Factors Printer Type 1759 Nitric Acid Factor 1.58 Printer Destination Local (USB) Acid Multiplier 0.0709 Sulfur Value is Percent Balance Port Communications Sulfur Multiplier 0.6238 Balance Port Device /dev/ttyUSB0 Fuse Multiplier Balance Port Settings...
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Page 16: Operation
Orient the wires away from the stirrer vessel. The default values of the 6772 are designed shaft so they do not become tangled in the stir- to operate with the 1341 Plain Jacket calorimeter. -
Page 17: Thermochemical Corrections
6772 Operation Performing an Analysis 9. At the conclusion of the test, the thermometer will signal the user. Tests can be run in a strictly manual fashion or automatically where the thermometer sequences the 10. Open the cover and remove the combustion calorimeter through the pre and post periods. -
Page 18: Manual Test Sequencing
Ethernet Connection or and ignition leads are connected to the rear of the a USB drive. The Ethernet Connection can also be 6772 Calorimetric Thermometer. used to transfer temperatures to a computer for plotting and analysis in real time. -
Page 19: Automatic Test Sequencing
6772 Operation After all pressure has been released, unscrew the cap; combustion. The calorimetric post-period will last lift the head out of the cylinder and place it on the for an additional 6-7 minutes until the calorimeter support stand. Examine the interior of the vessel and temperature drift rate sufficiently stabilizes. -
Page 20: Menu Descriptions
Menu Descriptions choices. Always clear the current value before haPter entering a new value. Once entered the screen will revert to the previous menu and the new Menu Descriptions value will be displayed in the lower right corner of the key. 4. -
Page 21: Calorimeter Operation
6772 Menu Descriptions CALORIMETER OPERATION (CONTINUED) CALORIMETER OPERATION TEMPERATURE VS. TIME PLOT The Calorimetric Thermometer will normally be operated from the Calorimeter Operation Menu, Setup: Press the Setup key to access the Tem- although tests can always be started from any perature Plot Setup Menu, which has many keys menu screen. -
Page 22: Operating Controls
Menu Descriptions CALORIMETER OPERATION (CONTINUED) OPERATING CONTROLS TEMPERATURE PLOT SETUP (CONTINUED) Bucket Plot Symbol: Toggles between: • No Point • Small Dot • Round • Square • Up Triangle • Down Triangle • Diamond Bucket Min Value: Press this key to access its nu- Method of Operation: Offers an operating mode of meric dialog box to set a minimum bucket value. -
Page 23: Use Spiking
6772 Menu Descriptions OPERATING CONTROLS (CONTINUED) PROGRAM INFORMATION & CONTROL SPIKE CONTROLS (CONTINUED) Use Spiking: When set to ON, the Calorimetric Thermometer will prompt for the weight of the spike added and will compensate for the heat of combustion in the calculations. -
Page 24: Program Information & Control
Bomb Type Select: Not currently configured for the the sub-menu on which this limit is set. recom- 6772 changes for different combustion vessel (bomb) mends 500 firings for this service interval. (Parts types are loaded by changing the User Setup ID and may need to be replaced on a more frequent basis Reload User Default Settings. -
Page 25: Bomb 1
• Bomb EE Value. Displays the calculated EE value. acceptable values for precision control. • # Runs, EE Val. Displays how many runs have The Process Sigma of the 6772 will depend on the been used to determine the EE value. application. -
Page 26: Bomb Control Chart
When any fixed correction is set to ON, the speci- (see Calibration Data and Controls menu). fied value will be used in the final reports, and the 6772 will not prompt for actual corrections to be BOMB CONTROL CHART entered. (If all corrections are fixed, then prelimi- nary and final reports will be identical). -
Page 27: Calculation Factors
6772 Menu Descriptions THERMOCHEMICAL CORRECTIONS (CONTINUED) THERMOCHEMICAL CORRECTIONS (CONTINUED) Options for the Acid Correction: Fixed Sulfur: Press this key on the LEFT side to toggle ON or OFF the fixed sulfur correction for • Fixed HNO determination runs. Press it on the RIGHT side •... -
Page 28: Net Heat/Dry Heat Factors
Menu Descriptions THERMOCHEMICAL CORRECTIONS (CONTINUED) THERMOCHEMICAL CORRECTIONS (CONTINUED) Sulfur Value is Percent: When set to ON, the NET HEAT/DRY HEAT FACTORS sulfur value is being entered as weight percent sulfur. If another system is to be used, this must be turned OFF and the sulfur multiplier set ac- cordingly. -
Page 29: Data Entry Controls
6772 Menu Descriptions DATA ENTRY CONTROLS (CONTINUED) DATA ENTRY CONTROLS AUTO SAMPLE ID CONTROLS Prompt for Bomb ID: In the ON position the con- troller will prompt for a Bomb ID (1-4) when a test Automatic Sample ID: When set to ON the unit is started. -
Page 30: Preweigh Sample Id Controls
Menu Descriptions DATA ENTRY CONTROLS (CONTINUED) REPORTING CONTROLS Sulfur Entry Mode: This key toggles steps through the options for entering sulfur correction value either manually through the touchscreen or auto- matically through the balance (USB) port. Moisture Entry Modes: This key steps through the options for entering the moisture percentage whether manually through the touchscreen or automatically through the balance (USB) port. -
Page 31: Communication Controls
6772 Menu Descriptions COMMUNICATION CONTROLS (CONTINUED) COMMUNICATION CONTROLS BALANCE PORT SETTINGS Printer Type: Toggles between a 1759 and a generic printer. When set for the 1759 Printer, all of • Number of Data Bits. Standard options for data the features of this printer, such as bold printing, bits. -
Page 32: File Management
Menu Descriptions COMMUNICATION CONTROLS (CONTINUED) FILE MANAGEMENT BALANCE PORT COMMUNICATIONS (CONTINUED) Log Balance to Display: Directs the incoming data stream from the balance to a display buffer. This function can be used to determine the data for- mat from an unknown balance type. The display buffer is 40 characters in length. -
Page 33: Run Data File Manager
6772 Menu Descriptions FILE MANAGEMENT (CONTINUED) DIAGNOSTICS RUN DATA FILE MANAGER Provides the user with the means to test many of the components and subsystems of the Calori- The white upper portion of the Run Data File metric Thermometer. These capabilities should be... -
Page 34: Data Logger Controls
Menu Descriptions DIAGNOSTICS (CONTINUED) DIAGNOSTICS (CONTINUED) DATA LOGGER CONTROLS DATA LOG ITEMS Data Logger: This key toggles the data logging By default, both the bucket and jacket tempera- function ON / OFF . tures are logged. All records are date and time stamped. -
Page 35: I/O Diagnostics
Press the Print key to print this log. I/O Diagnostics: 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). -
Page 36: Calculations
White oil is also an excellent = The heat produced by the formation of material, particularly for liquid samples. The 6772 sulfuric acid from the reaction of sulfur Calorimetric Thermometer can automatically dioxide, water and oxygen. -
Page 37: Nitric Acid Correction
6772 Calculations Manual Entry vs. Fixed Corrections This factor is added to the calculations when Spike Controls, Use Spiking is set to ON. The Heat of If fixed values for fuse, acid and sulfur are turned Combustion of the spiking material is entered OFF on the Thermochemical Corrections Menu, as calories per gram. -
Page 38: Acid & Sulfur Corrections
Calculations Acid & Sulfur Corrections Definitions • Total acid is the amount of base required to titrate the combustion vessel washings (milliliters). • Nitric acid is that portion of the total acid in the combustion vessel washings that result when the nitrogen in the air that is trapped in the vessel is burned at high pressure. -
Page 39: Acid Correction
6772 Calculations Acid Correction In the 6772 there are a number of settings for the acid correction. = the nitric acid portion of the correction. Fixed HNO : The Acid Correction is a fixed value set by the operator. The calculation is: = (nitric acid value)(acid multiplier)(heat of formation of nitric acid) For an 1108 Oxygen Combustion Vessel the default nitric acid value is 10 and acid multiplier is 0.0709. -
Page 40: Astm
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 (see Settings for ISO &... -
Page 41: Iso
6772 Calculations Both the ISO 1928 and BSI 1016: Part 5 methods for testing the calorific value of coal and coke, deal with acid and sulfur corrections in a manner which is somewhat different than ASTM procedures. The analysis of com- bustion vessel washings in these methods call for a titration, first using 0.1 N barium hydroxide (V... -
Page 42: Reports
Run Data Type: This key enables the operator to display only determination runs, only stan- dardization runs, only solution runs or all runs. The 6772 Calorimetric Thermometer can transmit its stored test data in either of two ways. The Run Data Status: This key enables the operator... -
Page 43: File Management
6772 File Management The controller of the 6772 Calorimetric Thermom- haPter eter can accept USB drives. These drives can be used to: File Management • Copy test file data for transfer to a computer • Copy log file data for transfer to a computer The 6772 Calorimetric Thermometer will hold data for 1000 tests in its memory. -
Page 44: Maintenance & Troubleshooting
• A combustion vessel leak. Fuses • Poor bucket stirring The replacement of protective fuses for the 6772 Calorimetric Thermometer should be performed by • Ignition lead wires have broken internal strands qualified personnel. A Preperiod Timeout Has Occurred. The calorim-... -
Page 45: Technical Service
6772 Maintenance & Troubleshooting Technical Service There Is A Problem With The Bucket Thermistor. Possible electrical open. Should you need assistance in the operation or service of your instrument, please contact the • Check connection to board. Technical Service Department. -
Page 46: Parts Lists & Drawings
Parts Lists & Drawings haPter Parts Lists & Drawings 6772 Parts List Item Description Power Supply 1940E CPU Board, 6772 2395E5 A2140E I/O Board A2166E Cable, I/O to CPU USB Cable, USB Peripheral A2167E LCD Touchscreen 2410E Thermistor Probe 1168E2... -
Page 47: Internal Parts View
6772 Parts Lists & Drawings Internal Parts View 4X SA1140RP08 2X SN1140HLHJ A1821E A2167E 2395E5 CPU BOARD 4-40 X 1/2 RHMS 4-40 HEX LOCK NUT SPEAKER CABLE, USB 4X SA1140RP06 PHILLIPS NYLON INS ASSEMBLY PERIPHERAL 4-40 X 3/8 RHMS PHILLIPS... -
Page 48: Lcd Display, Internal Parts View
Parts Lists & Drawings LCD Display, Internal Parts View 384C COVER 2410E LCD TOUCHSCREEN 4X SA1332RP04 6-32 X 1/4 RHMS PHILLIPS 383C MOUNTING PLATE 4X SA1332RP04 6-32 X 1/4 RHMS PHILLIPS External Parts View - Back Panel (See drawing in See Chapter 1: Installation, page 6) A330C4_S6 R0... -
Page 49: 6772 Schematic
6772 Parts Lists & Drawings 6772 Schematic A2140E I/O BOARD A2411E EXTENSION CABLE A2403E POWER CABLE ASSEMBLY PIN #1 A2166E I/O TO CPU USB CABLE ASSEMBLY (RED WIRE ON CABLE CONNECTS TO PIN #1) 2410E LCD TOUCHSCREEN 2401E SPLITTER CABLE...
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