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Summary of Contents for Fluke Hart Scientific 9150
- Page 1 Hart Scientific 9150 Portable Furnace User’s Guide Rev. 5B1601...
- Page 2 Fluke Corporation, Hart Scientific Division 799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA Phone: +1.801.763.1600 • Telefax: +1.801.763.1010 E-mail: support@hartscientific.com www.hartscientific.com Subject to change without notice. • Copyright © 2005 • Printed in USA Rev. 5B1601...
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Page 3: Table Of Contents
Table of Contents 1 Before You Start ......1 Symbols Used ......1 Safety Information . - Page 4 Calibrating a Single Probe..... . 43 Furnace Characteristics ..... . . 43...
- Page 5 10.2.1 Stabilization and Accuracy ......43 11 Calibration Procedure ..... . 45 11.1 Calibration Points .
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Page 6: Before You Start
Before You Start Symbols Used Table 1 lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual. Table 1 International Electrical Symbols Symbol Description AC (Alternating Current) AC-DC Battery CE Complies with European Union Directives Double Insulated Electric Shock... -
Page 7: Safety Information
If the unit is set at 600°C and the display reads 600°C, the well is at 600°C. The top sheet metal of the furnace may exhibit extreme temperatures for areas close to the well access. The air over the well can reach temperatures greater than 200°C. Probes should only be inserted and removed from the unit when the unit is set at temperatures less than 200°C. -
Page 8: Cautions
Completely unattended high temperature operation is not recommended for safety reasons. Before initial use, after transport, and anytime the furnace has not been ener- gized for more than 10 days, the calibrator must be energized for a dry-out pe- riod of 1 to 2 hours before it can be assumed to meet all of the safety requirements of the IEC1010-1. -
Page 9: Authorized Service Centers
9150 Portable Furnace User’s Guide Allow for test probe expansion inside the well as the furnace heats. DO NOT use fluids to clean out the well. Never introduce foreign material into the probe hole of the insert. Fluids, etc. can leak into the calibrator causing damage. - Page 10 Chao Yang District Beijing 100004, PRC CHINA Phone: +86-10-6-512-3436 Telefax: +86-10-6-512-3437 E-mail: xingye.han@fluke.com.cn Fluke South East Asia Pte Ltd. Fluke ASEAN Regional Office Service Center 60 Alexandra Terrace #03-16 The Comtech (Lobby D) 118502 SINGAPORE Phone: +65 6799-5588 Telefax: +65 6799-5588 E-mail: antng@singa.fluke.com...
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Page 11: Introduction
The Hart Scientific 9150 thermocouple furnace can be used for calibrating ther- mocouple and RTD temperature probes. Calibrations may be done over a range of 150°C to 1200°C (302°F to 2192°F). Temperature display of the 9150 is 0.1 degrees below 1000°and 1 degrees above 1000°. -
Page 12: Specifications And Environmental Conditions
Specifications and Environmental Conditions Specifications Temperature Range Display Resolution Stability Display Accuracy Well Diameter Well Depth Heating Time Cooling Time Well to Well Uniformity Stabilization Power Size Weight Fault Protection Environmental Conditions Although the instrument has been designed for optimum durability and trou- ble-free operation, it must be handled with care. -
Page 13: Warranty
User’s Guide Warranty Fluke Corporation, Hart Scientific Division (Hart) warrants this product to be free from defects in material and workmanship under normal use and service for a period as stated in our current product catalog from the date of shipment. -
Page 14: Safety Guidelines
Overhead clearance needs to al- low for safe and easy insertion and removal of probes for calibration. • The furnace is a precision instrument. Although it has been designed for optimum durability and trouble free operation, it must be handled with care. -
Page 15: Quick Start
Quick Start Unpacking Unpack the furnace carefully and inspect it for any damage that may have oc- curred during shipment. If there is shipping damage, notify the carrier immediately. Verify that the following components are present: • 9150 Furnace • 3150, Insert •... -
Page 16: Setting The Temperature
9150 Portable Furnace User’s Guide Setting the Temperature Section 8 explains in detail how to set the temperature set-point on the calibra- tor using the front panel keys. The procedure is summarized here. (1) Press “SET” twice to access the set-point value. -
Page 17: Parts And Controls
6 Parts and Controls Back Panel Parts and Controls The user should become familiar with the furnace back panel, front panel, and constant temperature block assembly. Back Panel The back panel (Figure 1) features the Power Entry Module (PEM) that con- tains the power cord socket, the power switch, and the heater voltage switch, the serial port, and the fan. -
Page 18: Front Panel
9150 Portable Furnace User’s Guide Fan - The fan inside the calibrator runs continuously when the unit is being op- erated to provide cooling for the instrument. Slots at the top and sides of the calibrator are provided for airflow. The area around the calibrator must be kept clear to allow adequate ventilation. -
Page 19: Constant Temperature Block Assembly
EXIT – Used to exit from a menu. When EXIT is pressed any changes made to the displayed value are ignored. Constant Temperature Block Assembly The constant temperature block assembly is shown in Figure 3 and consists of removable inserts. Figure 3 Removable Inserts 6.3.1 Constant Temperature Block... - Page 20 9150 Portable Furnace User’s Guide • Insert A Model 3150-2 (variety block): 1/2”, 1/4”, 3/8”, 3/16”, 1/8”, and 1/16” holes • Insert B Model 3150-3 (comparison block): two each 3/8”, 1/4”, and 3/16” holes • Insert C Model 3150-4 (1/4” comparison block): six 1/4” holes...
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Page 21: General Operation
3 - Press “SET” to store changes and then “EXIT” to display the temperature. Switching to 230V Operation The 9150 is switchable from 115 VAC to 230 VAC 50/60 Hz. Switching the voltage can change the calibration, so the unit should be calibrated after changing the input voltage. -
Page 22: Controller Operation
Controller Operation This section discusses in detail how to operate the furnace temperature control- ler using the front control panel. By using the front panel key-switches and LED display the user may monitor the well temperature, adjust the set-point temperature in degrees C or F, monitor the heater output power, adjust the con-... - Page 23 9150 Portable Furnace User’s Guide Figure 4 Controller Operation Flowchart...
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Page 24: Set-Point Value
200.0 C Access set-point memory 1. 200. To change the set-point memory press “UP” or “DOWN”. 5. 900. Press “SET” to accept the new selection and access the set-point value. Accept selected set-point memory 8.2.2 Set-point Value The set-point value may be adjusted after selecting the set-point memory and pressing “SET”. -
Page 25: Scan
The scan rate can be set and enabled so that when the set-point is changed the furnace heats or cools at a specified rate (degrees per minute) until it reaches the new set-point. With the scan disabled the furnace heats or cools at the maxi- mum possible rate. -
Page 26: Ramp And Soak Program
Accept scan rate Ramp and Soak Program The ramp and soak program feature for the 9150 allows the user to program a number of set-points, cycle the furnace automatically between the temperatures at a scan rate set by the user, and hold the furnace at each temperature for a pe- riod of time set by the user. -
Page 27: Program Set-Points
Use “UP”, “DOWN”, and “SET” to adjust the program soak time. This value can be any integer from 0 to 14400. This time is the minutes the program set-point maintains after the temperature of the furnace has settled and before proceeding to the next set-point. Each digit flashes individually to indicate that... -
Page 28: Program Function Mode
it can be adjusted. 00200 Press “SET” to save the new soak-time value or “EXIT” to discard changes Accept the program point soak time The next value to edit is the program scan rate. This value is ignored if scan is not enabled for the unit (See Section Sr 4 Press “SET”... -
Page 29: Program Control
(See Figure 4 on page 22.) Heater Power The temperature controller controls the temperature of the furnace by pulsing the heater on and off. The total power being applied to the heater is determined by the duty cycle or the ratio of heater on time to the pulse cycle time. By knowing the amount of heating the user can tell if the calibrator is heating up to the set-point, cooling down, or controlling at a constant temperature. -
Page 30: Set-Point Voltage
”EXIT” simultaneously and release. The heater power is displayed as a percent- age of full power. 962.4 100.0 P To exit out of the secondary menu press “EXIT”. To continue on to the set-point voltage setting function press “SET”. Set-point Voltage The set-point voltage is displayed for informational purposes and is used to cal- ibrate the instrument. -
Page 31: Controller Configuration
9150 Portable Furnace User’s Guide troller cannot respond very well to changing conditions or noise in the system. If the proportional band is too narrow the temperature may swing back and forth because the controller overreacts to temperature variations. For best con- trol stability the proportional band must be set for the optimum width. -
Page 32: Operating Parameters
bration parameters. The groups are selected using the “UP” and “DOWN” keys and then pressing “SET”. 8.10 Operating Parameters The operating parameters menu is indicated by: Press “SET” to enter the menu. The operating parameters menu contains the HL (High Limit) parameter, the Soft Cutout parameter, and the Cutout Reset Mode parameter. -
Page 33: Cutout Reset Mode
9150 Portable Furnace User’s Guide 1225 1225.0 Adjust this parameter by using “UP”, “DOWN”, and “SET” as each digit flashes. 1200.0 Press “SET” to accept the new temperature limit. If the temperature of the unit is ever greater than the Soft Cutout temperature the controller shuts itself down and displays, alternately, “SCtOut”... -
Page 34: Baud Rate
8.11.1 BAUD Rate The BAUD rate is the first parameter in the menu. The BAUD rate setting de- termines the serial communications transmission rate. The BAUD rate parameter is indicated by, bAUd Press “SET” to choose to set the BAUD rate. The current BAUD rate value is then be displayed. -
Page 35: Linefeed
8.12 Calibration Parameters The operator of the 9150 has access to the furnace calibration constants. These values are set at the factory and must not be altered. The correct values are im- portant to the accuracy and proper and safe operation of the furnace. Access to these parameters is available to the user only so that in the event the controller memory fails, the user may restore these values to the factory settings. -
Page 36: Hard Cutout
Press “SET” five times to enter the menu. The calibration parameters menu contains the parameters Hard Cutout, CT1, CE1, CT2, CE2, CT3, and CE3. 8.12.1 Hard Cutout This parameter is the temperature above which the unit shuts down automati- cally. The parameter is set at the factory to approximately 1260°C and cannot be changed by the user. -
Page 37: Digital Communication Interface
Digital Communication Interface The furnace is capable of communicating with and being controlled by other equipment through the digital serial interface. With a digital interface the instrument may be connected to a computer or other equipment. This allows the user to set the set-point temperature, monitor the temperature, and access any of the other controller functions, all using remote communications equipment. -
Page 38: Baud Rate
BAUD rate parameter by showing “bAUd”. Press “SET” to choose to set the BAUD rate. The current BAUD rate value is displayed. The BAUD rate of the 9150 serial communications may be programmed to 300, 600, 1200, 2400, 4800, or 9600 baud. The BAUD rate is preprogrammed to 2400 BAUD. Use “UP”... -
Page 39: Interface Commands
9 Digital Communication Interface Interface Commands temperature set-point and view or program the various parameters. The inter- face commands are discussed in Section 9.2. All commands are ASCII charac- ter strings terminated with a carriage-return character (CR, ASCII 13). Interface Commands The various commands for accessing the calibrator functions via the digital in- terfaces are listed in this section (see Table 2). - Page 40 9150 Portable Furnace User’s Guide Table 2 Communications Command Summary Command Command Description Format Display Temperature Read current set-point s[etpoint] Set current set-point to n s[etpoint]=n Set temperature units: u[nits]=c/f Set temperature units to Celsius u[nits]=c Set temperature units to...
- Page 41 Table 3 Communications Commands Summary continued Command Command Description Format Stop program pc=s[top] Continue program pc=c[ont] Read program function Set program function to n pf= n Configuration Menu Operating Parameters Menu Read high limit Set high limit hl=n Read soft cutout cuto Set soft cutout setting: cu[tout]=n...
- Page 42 9150 Portable Furnace User’s Guide Table 4 Communications Commands Summary continued Command Command Description Format These commands are only used for factory testing. Miscellaneous (not on menus) Read firmware version number *ver[sion] Read structure of all commands h[elp] Legend: [] Optional Command data...
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Page 43: Test Probe Calibration
However, actual heat losses will vary with design of the thermometer probes inserted into the calibrator and the temperature. For best results, insert probe to full depth of well. - Page 44 9150 Portable Furnace User’s Guide 1200°C takes 10 minutes to be within 0.5°C of its settled point and takes 15 minutes to achieve maximum stability. Speeding up the calibration process can be accomplished by knowing how soon to make the measurement. It is recommended that typical measurements be made at the desired temperatures with the desired test probes to establish these times.
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Page 45: Calibration Procedure
Calibration Procedure At times the user may want to calibrate the unit to improve the temperature set-point accuracy. Calibration is done by adjusting the controller probe cali- bration constants CE1, CE2, and CE3 so that the temperature of the unit as measured with a standard thermocouple agrees more closely with the set-point. - Page 46 9150 Portable Furnace User’s Guide ture, CEn is the old value for calibration error, and CEm is the new value for calibration error Enter the new CEm value in the calibration parameter menu using either the keypad or through the serial port.
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Page 47: Maintenance
Do not use harsh chemicals on the surface which may damage the paint. • Be sure that the well of the furnace is kept clean and clear of any foreign matter. DO NOT use fluids to clean out the well. -
Page 48: Troubleshooting
Factory Reset Sequence. Hold the SET and EXIT buttons down at the same time while powering up the instrument. After the instrument displays -init-, re- lease the buttons. The display shows 9150, and then displays the firmware version. After performing the master reset sequence, all of the configuration pa- rameters are reset to their default values. -
Page 49: Comments
9150 Portable Furnace User’s Guide Problem The display shows any of the following: err 1 , err 2 , err 3, err 4 , Err 5, Err 6, Err 7, or Err 8 Temperature cannot be set above a certain point...