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7-1 

Chapter 7 

General Operation 

 

 

7.1  Changing Display Units 

The 9150 can display temperature in Celsius or Fahrenheit. The temperature 
units are shipped from the factory set to Celsius. To change to Fahrenheit or 
back to Celsius there are two ways: 

1.  Press the “SET” and “DOWN” simultaneously.  

or 

1.  Press the “SET” key three times from the temperature display and then 

“EXIT” to show the units. 



=



2.  Press the “UP” or “DOWN” key to change units. 

3.  Press “SET” to store changes and then “EXIT” to display the temperature. 

7.2  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. 

To change from 115 VAC to 230 VAC 

1.  Unplug the unit. 

2.  With a small straight slot screwdriver remove the fuse holder from the PEM 

located on the back of the unit. 

3.  Replace the two 12A F 250V fuses with two 6.3A F 250V fuses. 

4.  Replace the fuse holder with the “230V” in the display window. 

5.  Lay the unit on its side and with a small straight slot screwdriver, move the 

heater switches located on the bottom of the unit to display “230V”. 

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Summary of Contents for Hart Scientific 9150

Page 1: ... rights reserved Specifications are subject to change without notice All product names are trademarks of their respective companies 9150 Portable Furnace User s Guide www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 2: ...service contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines t...

Page 3: ...al Conditions 3 2 4 Safety Guidelines 4 1 5 Quick Start 5 1 5 1 Unpacking 5 1 5 2 Set Up 5 1 5 3 Power 5 2 5 4 Setting the Temperature 5 2 6 Parts and Controls 6 1 6 1 Back Panel 6 1 6 2 Front Panel 6 2 6 3 Constant Temperature Block Assembly 6 3 6 3 1 Constant Temperature Block 6 3 6 3 2 Probe Sleeves and Tongs 6 3 7 General Operation 7 1 7 1 Changing Display Units 7 1 7 2 Switching to 230V Opera...

Page 4: ...2 8 10 3 Cutout Reset Mode 8 12 8 11 Serial Interface Parameters 8 13 8 11 1 BAUD Rate 8 13 8 11 2 Sample Period 8 13 8 11 3 Duplex Mode 8 14 8 11 4 Linefeed 8 14 8 12 Calibration Parameters 8 15 8 12 1 Hard Cutout 8 15 8 12 2 CT1 CT2 and CT3 8 15 8 12 3 CE1 CE2 and CE3 8 15 9 Digital Communication Interface 9 1 9 1 Serial Communications 9 1 9 1 1 Wiring 9 2 9 1 2 Setup 9 2 9 1 2 1 BAUD Rate 9 2 9...

Page 5: ...d Solutions 13 1 13 2 Comments 13 2 13 2 1 EMC Directive 13 2 13 2 2 Low Voltage Directive Safety 13 2 12 Maintenance 12 1 11 Calibration Procedure 11 1 11 1 Calibration Points 11 1 11 2 Calibration Procedure 11 1 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 6: ...9150 User s Guide iv www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 7: ...ional Electrical Symbols 1 1 2 Communications Command Summary 9 4 3 Communications Commands Summary continued 9 5 4 Communications Commands Summary continued 9 6 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 8: ...9150 User s Guide vi www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 9: ...e Title Page 1 Back Panel 6 1 2 Front Panel 6 2 3 Removable Inserts 6 3 4 Controller Operation Flowchart 8 2 5 Serial Cable Wiring Diagram 9 1 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 10: ...9150 User s Guide viii www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 11: ...E Ground Hot Surface Burn Hazard Read the User s Guide Important Information Ο Off І On Canadian Standards Association CAT II OVERVOLTAGE Installation CATEGORY II Pollution Degree 2 per IEC1010 1 refers to the level of Impulse Withstand Voltage protection provided Equipment of OVERVOLTAGE CATEGORY II is energy consuming equipment to be supplied from the fixed installation Examples include househol...

Page 12: ...l 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 DO NOT turn off the unit at temperatures higher than 100 C This could create a hazardous situation Select a set point less than 100 C and all...

Page 13: ... can be assumed to meet all of the safety requirements of the IEC1010 1 Materials used in this furnace may be irritating to skin eyes and respiratory tract Consult the material manufacturer s MSDS Material Safety Data Sheet Proper ventilation and safety precautions must be observed Follow all safety guidelines listed in the user s guide Calibration Equipment should only be used by Trained Personne...

Page 14: ...eters is important to the safety and proper operation of the calibrator DO NOT drop or force the probe stems into the well This type of action can cause a shock to the sensor and affect the calibration DO use a ground fault interrupt device 1 3 Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product www GlobalTestSupply c...

Page 15: ...ore You Start 1 3 Authorized Service Centers1 1 5 Model Number Serial Number Voltage Complete description of the problem www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 16: ...9150 User s Guide 1 6 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 17: ...ouple as a sensor and controls the well temperature with a solid state relay triac driven heater The furnace should be calibrated yearly by trained personnel at Hart Scientific The LED front panel continuously shows the current well temperature The temperature may be easily set with the control buttons to any desired tempera ture within the specified range The calibrator s multiple fault protectio...

Page 18: ...9150 User s Guide 2 2 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 19: ...ting Time 35 minutes to 1200 C Cooling Time 140 minutes with block Well to Well Uniformity 2 5 C insert C at 1200 C Stabilization 20 minutes Power 115 VAC 10 10 5 amps 230 VAC 10 5 2 amps switchable 50 60 Hz 1200 W Size 12 4 H x 8 2 W x 12 4 D 315 x 208 x 315 mm Weight 28 lb 13 kg Fault Protection Sensor burnout and short protection over temperature thermal cutout www GlobalTestSupply com Find Qua...

Page 20: ...Maintenance and cleaning recommendations can be found in the Maintenance Section of this manual The instrument operates safely under the following conditions temperature range 5 50 C 41 122 F ambient relative humidity 15 50 pressure 75kPa 106kPa mains voltage within 10 of nominal vibrations in the calibration environment should be minimized altitude less than 2000 meters www GlobalTestSupply com F...

Page 21: ...ent Cautiously handle probes to prevent personal injury Always use the special sleeve tongs that are supplied with the calibrator to remove the sleeve Carefully place probes on a heat cold resistant surface or rack until they are at room temperature Never place any objects other than the special probe sleeves supplied with the calibrator into the well Use only a grounded AC mains supply of the app...

Page 22: ... brownouts and blackouts could damage the instrument Wait until the power has stabilized before re energizing the instrument Air circulated through the unit keeps the chassis cool DO NOT SHUT OFF THE FURNACE WHILE AT HIGH TEMPERATURES www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 23: ...well DO NOT drop the sleeve in the well Probe sleeve holes should be of the smallest diameter possible while still allowing the probe to slide in and out easily Sleeves with various hole sizes are available from Hart Scientific The well must be clear of any foreign objects dirt and grit before the sleeve is inserted The sleeve is inserted with the two small tong holes positioned upward Turn on the...

Page 24: ...anel keys The procedure is summarized here 1 Press SET twice to access the set point value 2 Press SET to move the cursor to the units that need changing 3 Press UP or DOWN to change the set point value 4 Press SET until the display exits to store the new set point 5 Press EXIT to return to the temperature display without saving the new set point value When the set point temperature is changed the...

Page 25: ...tch the serial port and the fan fig 1 eps Figure 1 Back Panel Power Cord On the back of the calibrator is the removable power cord inlet that plugs into an IEC grounded socket Power Switch The power switch is located on the power entry module PEM The PEM also houses the fuses and the dual voltage selector The PEM and Heater Voltage Switch allow the unit to be field switchable for 115 VAC 10 or 230...

Page 26: ...t not only displays set and actual temperatures but also dis plays various calibrator functions settings and constants The display shows temperatures in units according to the selected scale C or F Controller Keypad The four button keypad allows easy setting of the set point temperature The control buttons SET DOWN UP and EXIT are used to set the calibrator temperature set point access and set oth...

Page 27: ...is used to sense and control the temperature of the block The entire assembly is surrounded by a heat reflector to thermally isolate the chassis and electronics 6 3 2 Probe Sleeves and Tongs The calibrator is supplied with a multi hole aluminum oxide probe sleeve and insulator sleeve for insertion into the calibrator well and tongs for removing sleeves Probe sleeves of various hole sizes are avail...

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Page 29: ...ing 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 To change from 115 VAC to 230 VAC 1 Unplug the unit 2 With a small straight slot screwdriver remove the fuse holder from the PEM located on the back of the unit 3 Replace the two 12A F 250V fuses with two 6 ...

Page 30: ... not done properly the unit could become damaged and void the calibration and warranty Refer to Section 3 1 Specifications for correct fuse usage Caution Do not plug the unit into 230V if the heater switches and fuse holder read 115V This will cause the fuses to blow and may damage the instrument www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 31: ...n or display value 8 1 Well Temperature The digital LED display on the front panel allows direct viewing of the actual well temperature This temperature value is what is normally shown on the dis play The units C or F of the temperature value are displayed at the right For example Well temperature in degrees Celsius The temperature displayed function may be accessed from any other function by pres...

Page 32: ...om the temperature display function by pressing SET The number of the set point memory currently being used is shown at the left on the display followed by the current set point value fig 4 eps Figure 4 Controller Operation Flowchart www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 33: ...C The first digit flashes on and off If the set point value is correct press EXIT to display the temperature scale units If the first digit is correct press SET To adjust the first digit press UP or DOWN Then press SET to go to the second digit The second digit of the temperature should now be flashing Adjust this digit by pressing UP or DOWN Press SET to accept the second digit and repeat until t...

Page 34: ...ce heats or cools at the maxi mum possible rate 8 3 1 Scan Control The scan is controlled with the scan on off function that appears in the main menu after the temperature scale units Scan function off Press UP or DOWN to toggle the scan on or off Scan function on Press SET to accept the present setting and access the scan rate Accept scan setting 8 3 2 Scan Rate The next function in the main menu...

Page 35: ...et point scan rate and soak time When the unit is in program mode the unit heats or cools to the current program set point at the current program scan rate Once the program set point is reached the unit waits for the program soak time before heating or cooling to the next program set point To access the Ramp and Soak Program Menu press SET and UP simultaneously Well temperature Access Ramp and Soa...

Page 36: ...he program points The controller only allows the user to edit program points that are less than or equal to the number of programs points selected as explained in Section 8 4 2 For example if the user has selected 4 program points program points 5 6 7 and 8 cannot be edited Program point 4 Press SET to edit a program point Edit program point The first value to edit is the program set point 0962 7 ...

Page 37: ...card 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 8 3 1 Program point 4 scan rate Press SET to edit the program scan rate Edit the program point scan rate Current program point 4 scan rate Use UP and DOWN to adjust the program scan rate New program point 4 scan rate Press SET to save...

Page 38: ...djust the program mode and the UP or DOWN buttons to change the mode New mode Press SET to continue or EXIT to continue without saving the new value Save new setting 8 4 5 Program Control The final parameter in the program menu is the control parameter You may choose between three options to either start the program from the beginning continue the program from where it was when it was stopped or s...

Page 39: ...control stability the percent heating power should not fluctuate more than 1 within one minute The heater power display is accessed in the secondary menu Press SET and EXIT simultaneously and release The heater power is displayed as a percent age of full power Well temperature Access heater power in secondary menu Heater power in percent To exit out of the secondary menu press EXIT To continue on ...

Page 40: ...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 control stability the proportional band must be set for the optimum width The proportional band width is set at the factory to about 30 0 C The proportional band width may be altered by the user if he desires to optimize the control charact...

Page 41: ...UP and DOWN keys and then pressing SET 8 10 Operating Parameters The operating parameters menu is indicated by Operating parameters menu 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 8 10 1 High Limit The HL parameter adjusts the upper set point temperature The factory default and maximum...

Page 42: ...hes New Soft Cutout setting 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 and Err 8 8 10 3 Cutout Reset Mode The cutout reset mode determines whether the cutout resets automatically when the well temperature drops to a safe value or must be manually reset...

Page 43: ...BAUD rate value is then be displayed Current BAUD rate The BAUD rate of the serial communications may be programmed to 300 600 1200 2400 4800 or 9600 BAUD 2400 BAUD is the default setting Use UP or DOWN to change the BAUD rate value New BAUD rate Press SET to set the BAUD rate to the new value or EXIT to abort the operation and skip to the next parameter in the menu 8 11 2 Sample Period The sample...

Page 44: ...mands are executed but not echoed The duplex mode parameter is indicated by Serial duplex mode parameter Press SET to access the mode setting Current duplex mode setting The mode may be changed using UP or DOWN and pressing SET New duplex mode setting 8 11 4 Linefeed The final parameter in the serial interface menu is the linefeed mode This parameter enables on or disables off transmission of a li...

Page 45: ... the factory set values The correct settings of these parameters is important to the safety and proper operation of the furnace The calibration parameters menu is indicated by Calibration parameters menu 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 wh...

Page 46: ...9150 User s Guide 8 16 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 47: ...ther controller functions all using remote communications equipment Communications commands are summarized in Table 2 9 1 Serial Communications The calibrator is installed with an RS 232 serial interface that allows serial digital communications over fairly long distances With the serial interface the user may access any of the functions parameters and settings discussed in Section 8 with the exce...

Page 48: ... 2400 BAUD Use UP or DOWN to change the BAUD rate value Press SET to set the BAUD rate to the new value or EXIT to abort the operation and skip to the next parameter in the menu 9 1 2 2 Sample Period The sample period is the next parameter in the menu and prompted with The sample period is the time period in seconds between temperature measurements transmitted from the serial interface If the samp...

Page 49: ...CII 13 9 2 Interface Commands The various commands for accessing the calibrator functions via the digital interfaces are listed in this section see Table 2 These commands are used with the RS 232 serial interface The commands are terminated with a carriage re turn character The interface makes no distinction between upper and lower case letters hence either may be used Commands may be abbreviated ...

Page 50: ...9150 User s Guide 9 4 Table 2 Communications Command Summary tab 2 eps www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 51: ...igital Communication Interface 9 2 Interface Commands9 9 5 Table 3 Communications Commands Summary continued tab 3 eps www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 52: ...9150 User s Guide 9 6 Table 4 Communications Commands Summary continued tab 4 eps www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 53: ...tle as de scribed above Once the probe has settled to the temperature of the well it may be compared to the calibrator display temperature The display temperature should be stable to within 1 C degree for best results Caution Never introduce any foreign material into the probe hole of the insert Fluids etc can leak into the calibrator causing damage to the calibrator or binding and damage to your ...

Page 54: ...her period of stabilizing depending on the magnitude of the disturbance and the required accuracy For example inserting a 25 inch diameter room temperature probe into a sleeve at 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 r...

Page 55: ...he calibration temperatures the larger the calibration range but the calibration error is also greater over the range Choosing a range of 150 C to 500 C may allow the calibrator to have a better accuracy of maybe 2 0 C but outside that range the ac curacy may be greater than 10 0 C 11 2 Calibration Procedure 1 Choose three set points to use in the calibration of CE1 CE2 and CE3 parameters These se...

Page 56: ... using the following formula Tmn Tsn CEn CEm Where Tmn is the temperature measured Tsn CTn is the set point temperature CEn is the old value for calibration error and CEm is the new value for calibration error 6 Enter the new CEm value in the calibration parameter menu using either the keypad or through the serial port www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply...

Page 57: ...ent the user is responsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material If the mains supply cord becomes damaged replace it with a cord of the appropriate gauge wire for the current of the instrument If there are any questions call Hart Scientific Customer Service for more information Before using any cleaning or decontam...

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Page 59: ...was shipped with the instrument or from subsequent calibrations of the instrument Reprogram the parameters into the Model 9150 memory see Section 8 12 Calibration Parameters Allow the instrument to stabilize and verify the accuracy of the temperature reading Memory scrambled The memory may be scrambled due to a power surge or other aberration Initialize the system by performing the Factory Reset S...

Page 60: ...orming the Factory Reset Sequence describe above Temperature cannot be set above a certain point Incorrect High Limit parameter The High Limit parameter may be set below 1200 C Check this value as described in Section 8 10 Operating Parameters The display flashes Incorrect Soft Cutout parameter Wait for the instrument to cool and adjust the Soft Cutout parameter as described in Section 8 10 Operat...

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