9150 User Manual
Contents
1. Read program function pf pf pf 9 pf 3 Set program function to n pf n pf 2 1to4 Configuration Menu Operating Parameters Menu Read high limit hl hl hl 9999 hl 925 Set high limit hl n hl 900 100 1200 Read soft cutout cuto cuto c 9999 9 c 1150 0 Set soft cutout setting cultout n Set soft cut out to n degrees cu tout n cu 500 0 0 to 1150 0 Read cut out mode cm ode cm cm AUTO Set cut out mode cm ode r eset a uto Reset or Auto Set cut out to be reset manually cm ode r eset cm r Set cut out to be reset cm ode a uto cm a automatically Serial Interface Menu Read serial sample setting sa mple sa sa 9 sa 1 Set serial sampling setting to n sa mple n sa 0 0 to 4000 seconds Set serial duplex mode du plex f ull h alf FULL or HALF Set serial duplex mode to full du plex f ull du f Set serial duplex mode to half du plex h alf du h Set serial linefeed mode Iffeed on of f ON or OFF Set serial linefeed mode to on If eed on lf on Set serial linefeed mode to off Iffeed of f Ifzof Cal Menu Read CTn calibration parameter cti ctn 99 9C ct1 10 0C Set CTn calibration parameter to ctn n ct1 10 0 0 to 12 00 n Read CEn calibration parameter cen cel cen 99 9C ce 10 1C Set CEn calibration parameter to cen n 10 99 9 to 99 9 n 41 9150 Portable Furnace User s Guide Table 4 Communications Commands Summary continued Command Command Returned Acceptable Command Descr2. Hart Scientific 9 9150 Portable Furnace User s Guide Rev 872501 Fluke Corporation Hart Scientific Division 799 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 872501 Table of Contents 1 Before You Start 1 1 1 Symbols Used 2 2 2 424 1 1 2 Safety Information 2 1 2 1 WARNINGS iaci Reb He ae ees An a 2 1 2 2 CAUTIONS 4X Regen se ep een oh a 3 1 3 Authorized Service Centers 4 2 Introduction 7 3 Specifications and Environmental Conditions 9 3 1 SpecIfICatlOniS oco gom eee eee ERR GE PE si S ORO 9 32 Environmental Conditions 9 3 3 Warranty Sy ea SSA ww VOS e B X wey de 10 4 Safety Guidelines 11 5 Onick Start ss o x Rx oso os 5 1 gt 520 ME Ne ANNE LA as 13 32 Se UPs ee Li yee bob ER I EON AE SS er bd 13 5 3 lo C 13 54 Setting the Temperature 14 6 Parts Controls 15 6 1 Back Panel 255356 due Sp ues 15 6 2 Front RUN Res 16 6 3 C
3. 5 50 C 41 122 F e ambient relative humidity 15 50 e pressure 75kPa 106kPa e mains voltage within 10 of nominal e vibrations in the calibration environment should be minimized e altitude less than 2000 meters 9150 Portable Furnace User s Guide 3 3 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 This warranty extends only to the original purchaser and shall not apply to any product which in Hart s sole opinion has been subject to misuse alteration abuse or abnormal conditions of operation or handling Software is warranted to operate in accordance with its programmed instruc tions on appropriate Hart products It is not warranted to be error free Hart s obligation under this warranty is limited to repair or replacement of a product which is returned to Hart within the warranty period and is determined upon examination by Hart to be defective If Hart determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal condi tions or operation or handling Hart will repair the product and bill the pur chaser for the reasonable cost of repair To exercise this warranty the purchaser must forward the product after calling or writing an Authorized Service Center see Section 1 3 T
4. 2 Problem Possible Causes and Solutions The display shows any of Controller problem The error messages signify the following problems with the a RAM error a NVRAM error a RAM error an ADC setup error an ADC ready error the following Err 1 controller Err 2 Ere 3 Ere Err l Err 5 Ere Eee 2 Err 1 Err 8 Ee Err Err 5 Err Err a Sensor error 1 a Heater control error Err 8 a Soft cutout error Initialize the system by performing the Factory Reset Sequence describe above Temperature cannot be X Incorrect High Limit parameter The High Limit parameter may be set below set above a certain point 1200 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 Cut out Soft Cutout parameter as described in Section 8 10 Operating Parameters Comments EMC Directive Equipment manufactured by Hart Scientific has been tested to meet the Euro pean Electromagnetic Compatibility Directive EMC Directive 89 336 EEC The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 23 EEC Hart Scientific equipment has been designed to meet the IEC 1010 1 EN 61010 1 and the IEC 1010 2 010 EN 61010 2 010 standards
5. 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 8 Controller Operation Ramp and Soak Program 8 4 4 it can be adjusted 00200 Program point 4 soak time set for 200 minutes Press SET to save the new soak time value or EXIT to discard changes SET 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 SET Edit the program point scan rate 10 0 Current program point 4 scan rate 11 3 New program point 4 scan rate Press SET to save the new scan rate value or EXIT to discard changes SET Accept the program point scan rate After SET is pressed the controller advances to the next program point or if there are no more program points to edit exits to the Program Function Menu Repeat the above steps to edit any program point Program Function Mode The next parameter is the program function or cycle mode There are four pos sible modes which determine whether the program scans up from set point 1 to n only or both up and down from set point n to 1 and also whether the program stops after one cycle or repeats the cycle indefinitely The table below shows the action of each of the four program mode setti
6. range of temperature is called proportional band At the bottom of the proportional band the heater output is 100 At the top of the propor tional band the heater output is 0 Thus as the temperature rises the heater power is reduced which consequently tends to lower the temperature back down In this way the temperature is maintained at a fairly constant temperature The temperature stability of the well and response time depend on the width of the proportional band If the band is too wide the well temperature deviates ex cessively from the set point due to varying external conditions This deviation is because the power output changes very little with temperature and the con 29 9150 Portable Furnace User s Guide 30 8 9 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 The proportional band width is set at the factory to about 30 0 C The propor tional band width may be altered by the user if he desires to optimize the con trol characteristics for a particular application The proportional band width is easily adjusted from the front panel The width may be set to discrete values in degrees C or F depending on the selected units The proportional band adjustment can be a
7. to allow the user s probe to fit snugly into the well whatever the diameter of the probe Insert A and an insulator is provided unless otherwise indicated The inserts are 9150 Portable Furnace User s Guide or 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 7 General Operation Changing Display Units 7 1 7 2 General Operation 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 pP 2 Press the UP or DOWN key to change units 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 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 t
8. to the next parameter in the menu Sample Period The sample period is the next parameter in the serial interface parameter menu The sample period is the time period in seconds between temperature measure ments transmitted from the serial interface If the sample rate is set to 5 the in strument transmits the current measurement over the serial interface approximately every five seconds The automatic sampling is disabled with a sample period of 0 The sample period is indicated by SPEr Serial sample period parameter Press SET to choose to set the sample period The current sample period value is displayed SPzi Current sample period seconds red Adjust the value with UP or DOWN and then use SET to set the sample rate to the displayed value SP 60 j New sample period pd Duplex Mode The next parameter is the duplex mode The duplex mode may be set to full du plex or half duplex With full duplex any commands received by the calibrator 33 9150 Portable Furnace User s Guide 34 8 11 4 8 12 via the serial interface are immediately echoed or transmitted back to the device of origin With half duplex the commands are executed but not echoed The du plex mode parameter is indicated by eren p Linefeed The final parameter in the serial interface menu is the linefeed mode This pa rameter enables on or disables off transmission
9. 24 Taaa este Nue de RUE ck EE ash eus eee eee ae 38 9 1 3 Serial Op ration udo Modan te a aime dou e eee aed 38 9 2 Interface Commands 39 10 Test Probe Calibration 43 10 1 Calibrating Single 43 10 2 Furnace lt 43 ii 10 2 1 Stabilization and 43 11 Calibration Procedure 45 11 1 Calibration Points 4 4 du RR kc 45 112 Calibration Procedure lt s es 4 e 45 12 Maintenance 47 13 Troubleshooting 49 13 1 Troubleshooting Problems Possible Causes and Solutions 49 13 2 Comment 64592092054 be 05 be eH aS 50 13 2 1 EMC Directive iu Sb a woe vede dde e ded 50 13 22 Low Voltage Directive Safety 50 lii 1 Before You Start Symbols Used 1 1 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 NV AC Alternating Current AG AC DC Battery CE Complies with European Union Directives M MA DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the
10. 8 8 Proportional Band 29 8 9 Controller Configuration 30 8 10 Operating Parameters 31 8 10 1 High Limit 255 ena nrak ea EEG 31 8 10 2 SOM Cutout 425 ecd er hide we Roh Mo IR D 31 8 10 3 C tout Reset Mode oras t Goa et wit Ghd ae 32 8 11 Serial Interface Parameters 32 8 11 1 BAUD RAT 54 5 RE i ne ERR S S 33 8 11 2 Sample Pernod sods awd eddie ud e AS 33 8 11 3 Duplex Mod e sanais GES a Ho ee Se we ee eis SS me 33 8 11 4 Wine feeds P 34 8 12 Calibration Parameters 34 8 12 1 Hard Cutout 3 x amp as Bat at dak ay ot ye RUE exe oe ESE We das S 35 8129 CTZ Rosse Re 35 8 12 3 1 2 ke Meme 35 9 Digital Communication Interface 37 9 1 Serial Communications 37 9 1 1 p RO BD ae a EN 37 9 1 2 usos af dla Qala hg at Zoe Ges qe 37 O12 BAUD Rate ccs 2322 ERROR deu ES ds MUR X EU SOS See A 38 91 22 Sample Period au t etal de ee ee eee 38 9 1122 Duplex Mod s i cer ot aus Mis sides dk ey eR a ede 38 9 1
11. OWN Used to decrement the displayed value of parameters UP Used to increment the displayed value 6 Parts and Controls Constant Temperature Block Assembly 6 3 6 3 1 6 3 2 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 9150 Interchangeable Insert Options Insert A Insert B 1 16 1 4 3 16 1 4 1 2 3 8 3 8 3 8 Insert 3 16 1 8 1 4 1 4 Figure 3 Removable Inserts Constant Temperature Block The Block is made of aluminum oxide and provides a relatively constant and accurate temperature environment for the sensor that is to be calibrated A 1 25 inch diameter well is provided that may be used for sensors of that size or may be sleeved down with various sized multi hole probe sleeves Heaters sur round the block assembly and provide even heat to the sensor A Type S ther mocouple 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 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 available
12. URES for extended periods of time requires caution 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 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 Personnel CAUTIONS To avoid possible damage to the instrument follow these guidelines DO NOT plug the unit into 230 V if the heater switches and fuse holder read 115 V This action will cause the fuses to blow and may damage the instrument Components and heater lifetime can be shortened by continuous high tempera ture operation Most probes have handle temperature limits Be sure that the probe hand tem perature limit is not exceeded in the air above the unit 9150 Portable Furnace User s Guide 1 3 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 c
13. User s Manual Important Information Off On OPPOUPH 9150 Portable Furnace User s Guide 1 2 1 2 1 Symbol Description Canadian Standards Association US OVERVOLTAGE Installation CATEGORY II Pollution Degree 2 per IEC1010 1 re fers 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 household office and laboratory appliances Australian Mark CAT II The European Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC mark Safety Information Use this instrument only as specified in this manual Otherwise the protection provided by the instrument may be impaired The following definitions apply to the terms Warning and Caution e Warning identifies conditions and actions that may pose hazards to the user e Caution identifies conditions and actions that may damage the instru ment being used WARNINGS To avoid personal injury follow these guidelines BURN HAZARD DO NOT touch the well access surface of the unit The temperature of the well access is the same as the actual temperature shown on the display 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 a
14. after reaching the set temperature Inserting a cold probe into a well requires another period of stabilizing depend ing on the magnitude of the disturbance and the required accuracy For exam ple inserting a 25 inch diameter room temperature probe into a sleeve at 43 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 44 11 Calibration Procedure Calibration Points 11 11 1 11 2 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 so that the temperature of the unit as measured with a standard thermocouple agrees more closely with the set point The thermometer used must be able to measure the well temperature with higher accuracy than the desired accuracy of the unit Calibration Points In calibrating the unit CE1 CE2 and are adjusted to minimize the set point error at each of three different well temperatures Any three reason ably separated temperatures may be used for the calibration Improved results c
15. an be obtained for shorter ranges when using temperatures that are just within the most useful operating range of the unit The farther apart the 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 cali brator to have a better accuracy of maybe 2 0 C but outside that range the ac curacy may be greater than 10 0 C Calibration Procedure 1 Choose three set points to use in the calibration of CE1 CE2 and parameters These set points are generally CT1 150 C CT2 675 C and CT3 1200 C but other set points may be used if desired or neces sary Using these three temperature set points may result in 4 0 C accuracy 2 Ifthe normal set points are not used initialize CT2 and CT3 to the desired set points Where is the low set point and CT3 is the high set point 3 Setthe unit to the low set point When the unit reaches the set point and the display is stable wait 15 minutes or so and take a reading from the thermometer Repeat step 3 for the other two set points recording them as Tm2 and Tm3 4 Retrieve the original calibration errors from the unit or the Report of Calibration 5 Record the previous values for CE1 CE2 and and calculate new values for CE1 CE2 and CE3 using the following formula Tmn Tsn CEn CEm Where Tmn is the temperature measured Tsn CTn i
16. an leak into the calibrator causing damage DO NOT change the values of the calibration constants from the factory set values The correct setting of these parameters 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 Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product 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 Fluke Nederland B V Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone 31 402 675300 Telefax 31 402 675321 E mail ServiceDesk fluke nl Fluke Int l Corporation Service Center Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie 1 Before You Start Authorized Service Centers Chao Yang District Beijing 100004 PRC CHINA Phone 86 10 6 5 12 3436 Telefax 86 10 6 5 12 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 When contac
17. atures CE1 CE2 and CE3 The calibration parameters CE1 CE2 and CE3 are the calibration errors corre sponding to the calibration temperatures 35 9 Digital Communication Interface Serial Communications 9 1 9 1 1 9 1 2 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 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 Communications commands are summarized in Table 2 on page 40 Serial Communications The calibrator is installed with an RS 232 serial interface that allows serial dig ital 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 exception of the BAUD rate setting Wiring The serial communications ca m ble attaches to the calibrator RS 232 Cable Wiring for through the DB 9 connector at IBM PC and Compatibles the back of the instrument Fig ure 5 shows the pin out of this connector and suggested cable Instrument Computer DTE wiring The serial cable should Connector Connector DB 9 Pin DB 9 Pin be shielded If the unit is used s 1NC 1DCD i
18. ccess 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 allow the unit to cool before turning it off DO NOT remove inserts and insulators at high temperatures Inserts and insu lators are the same temperature as the display temperature 1 Before You Start Safety Information 1 2 2 DO NOT operate this unit without a properly grounded properly polarized power cord DO NOT connect this unit to a non grounded non polarized outlet HIGH VOLTAGE is used in the operation of this equipment SEVERE IN JURY OR DEATH may result if personnel fail to observe safety precautions Before working inside the equipment turn the power off and disconnect the power cord Always replace the fuse with one of the same rating voltage and type Overhead clearance is required DO NOT place this instrument under a cabinet or other structure DO NOT use this unit for any application other than calibration work DO NOT use this unit in environments other than those listed in the user s guide DO NOT turn the unit upside down with the inserts in place the inserts will fall out of the unit DO NOT operate near flammable materials Use of this instrument at HIGH TEMPERAT
19. ccessed within the secondary menu Press SET and EXIT to enter the secondary menu and show the heater power Then press SET twice to access the proportional band 100 0 P i Heater power in percent eee SET Access proportional band Flashes Pc oP and then displays the setting L 30 0 Proportional band New proportional band setting To store the new setting press SET Press EXIT to continue without storing the new value SET Accept the new proportional band setting Controller Configuration The controller has a number of configuration and operating options and calibra tion parameters which are programmable via the front panel These are ac cessed from the secondary menu after the proportional band function by pressing SET Pressing SET again enters the first of three groups of config uration parameters operating parameters serial interface parameters and cali 8 Controller Operation Operating Parameters 8 10 8 10 1 8 10 2 bration parameters The groups are selected using the UP and DOWN keys and then pressing SET Operating Parameters The operating parameters menu is indicated by PAr 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 High Limit The HL parameter adjusts the upper set point tem
20. cess the set point value SET Accept selected set point memory Set point Value The set point value may be adjusted after selecting the set point memory and pressing SET 0900 0 Set point value in 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 the last digit has been adjusted 0952 1 New set point value ped Press SET to accept the new set point If EXIT is pressed all changes made to the set point are discarded Accept new set point value Temperature Scale Units Temperature Scale Units of the controller are set by the user to degrees Celsius C or Fahrenheit F The units are used in displaying the well temperature set point and proportional band Press SET after adjusting the set point value to change display units PTE TETE IT EEE 23 9150 Portable Furnace User s Guide 24 8 3 8 3 1 8 3 2 Scale units currently selected Press UP or DOWN to change the units Unz F New units selected Press EXIT to display the well temperature or pre
21. d to the full depth of the well Once the probe is inserted into the well allow ade quate stabilization time to allow the test probe temperature to settle 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 probe Furnace Characteristics There is a temperature gradient vertically in the test well The heater has been applied to the block in such a way as to compensate for nominal heat losses out of the top of the furnace 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 CAUTION Do not remove inserts and insulators at high temperatures Inserts and insulators are the same temperature as the display tempera ture Use extreme care when removing hot inserts and insulators Stabilization and Accuracy The stabilization time of the calibrator depends on the conditions and tempera tures involved Typically the test well is stable to 0 5 C within 20 minutes of reaching the set point temperature as indicated by the display Ultimate stability is achieved 10 to 20 minutes
22. er a brief self test the controller should begin normal operation If the unit fails to operate please check the power connection The display begins to show the well temperature and the well heater starts oper ating to bring the temperature of the well to the set point temperature Power Plug the furnace power cord into a mains outlet of the proper voltage fre quency and current capability Refer to Section 3 1 Specifications for power details Turn the furnace on using the rear panel POWER switch The furnace turns on and begins to heat to the previously programmed temperature set point The front panel LED display indicates the actual furnace temperature 13 9150 Portable Furnace User s Guide 5 4 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 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 controller switches the well heater on or off to raise or lower the temperature The displayed well tempera ture gradually changes until it reaches
23. has stabilized before re energizing the instrument e Air circulated through the unit keeps the chassis cool DO NOT SHUT OFF THE FURNACE WHILE AT HIGH TEMPERATURES 11 5 Quick Start Unpacking 5 1 5 2 5 3 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 e 9150 Furnace e 3150 Insert e Insert Insulator e Power Cord e Manual e RS 232 Cable Set Up Place the calibrator on a flat surface with at least 6 inches of free space around the instrument Plug the power cord into a grounded mains outlet Observe that the nominal voltage corresponds to that indicated on the back of the calibrator Carefully insert the probe sleeve into the 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 power to the calibrator by toggling the switch on the power entry module The fan should begin quietly blowing air through the instrument and the controller display should illuminate after 3 seconds Aft
24. he display followed by the current set point value 21 9150 Portable Furnace User s Guide ser ur Display aeee Temperature gt SET EXIT Program Number SET SET EXITH EXIT Select Setpoint C SET DOWN DES SET Toggles C F SEVEXIT Adjust Setpoint EXIT Secondary Functions Set ome L p ser exit 4 Units C F Y EXT I SET Y Adj Set Y le EXIT Display Power Point N I SET EXIT Scan 0109 i SET _ Program Y lt EXIT Display Set Point Voltage Time N EXIT Scan Rate SET SET EXIT e SET y re EXIT Set Proportional Band Adj Prog Time ET s SET EXIT Y Configu
25. he service centers assume NO risk for in transit damage THE FOREGOING WARRANTY IS PURCHASER S SOLE AND EXCLU SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EX PRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE HART SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAM AGES OR LOSS WHETHER IN CONTRACT TORT OR OTHERWISE 4 Safety Guidelines 4 Safety Guidelines e Operate the instrument in room temperatures between 5 50 C 41 122 F Allow sufficient air circulation by leaving at least 6 inches of space be tween the instrument and nearby objects Overhead clearance needs to al low for safe and easy insertion and removal of probes for calibration e The furnace is a precision instrument Although it has been designed for optimum durability and trouble free operation it must be handled with care Always carry the unit in an upright position to prevent the probe sleeves from dropping out The convenient fold up handle allows one hand carrying The instrument should not be operated in excessively wet oily dusty or dirty environments It is important to keep the well of the instrument clean and clear of any foreign matter Do not operate near flammable materials e DO NOT use fluids to clean out the well e The instrument can generate extreme temperatures Precautions must be taken to prevent personal injury or damage
26. he 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 Note If the heater switches and the fuse holder do not all read 230V when complete the unit will either not heat or only heat at a fraction of its capacity If 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 19 8 Controller Operation Well Temperature 8 1 8 2 8 2 1 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 or F monitor the heater output power adjust the con troller proportional band and program the probe calibration parameters operat ing parameters serial interface configuration and controller calibration parameters Operation of the functions and parameters are shown in the flowchart in Figure 4 on page 22 This chart may be copied for reference In the fo
27. inefeed The final parameter in the serial interface menu is the linefeed mode This pa rameter enables or disables OFF transmission of a linefeed charac ter LF ASCII 10 after transmission of any carriage return The default setting is with linefeed on The mode may be changed using UP or DOWN and pressing SET Serial Operation Once the cable has been attached and the interface set up properly the control ler immediately begins transmitting temperature readings at the programmed rate The serial communications uses 8 data bits one stop bit and no parity The set point and other commands may be sent via the serial interface to set the 9 Digital Communication Interface Interface Commands 9 2 temperature set point and view or program the various parameters The inter face commands are discussed in Section 9 2 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 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 to the minimum number of letters which determines a unique command A command may be used t
28. iption Format Example Returned Example Values These commands are only used for factory testing Miscellaneous not on menus Read firmware version number ver sion ver ver 9999 9 99 ver 9150 2 20 Read structure of all commands h elp h list of commands Legend Optional Command data Returns either information n Numeric data supplied by user 9 Numeric data returned to user x Character data returned to user Note When DUPLEX is set to FULL and a command is sent to READ the command is returned followed by a carriage return and linefeed Then the value is returned as indicated in the RETURNED column 42 10 Test Probe Calibration Calibrating a Single Probe 10 10 1 10 2 10 2 1 Test Probe Calibration For optimum accuracy and stability allow the calibrator to warm up for 10 minutes after power up and then allow adequate stabilization time after reach ing the set point temperature After completing operation of the calibrator al low the well to cool by setting the temperature to 150 C or less for one half hour before switching the power off Calibrating a Single Probe Insert the probe to be calibrated into the well of the furnace calibrator The probe should fit snugly into the calibrator probe sleeve yet should not be so tight that it cannot be easily removed Avoid any dirt or grit that may cause the probe to jam into the sleeve Best results are obtained with the probe inserte
29. llowing discussion button with the word SET UP DOWN or EXIT inside indicates the panel button while the dotted box indicates the display reading Explanation of the button or display reading are to the right of each button or display value 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 362 3 t Well temperature in degrees Celsius The temperature displayed function may be accessed from any other function by pressing the EXIT button Temperature Set point The temperature set point can be set to any value within the range and resolu tion as given in the specifications Be careful not to exceed the safe upper tem perature limit of any device inserted into the well Setting the temperature involves two steps 1 select the set point memory and 2 adjust the set point value Programmable Set points The controller stores 8 set point temperatures in memory The set points can be quickly recalled to conveniently set the calibrator to a previously programmed temperature set point To set the temperature one must first select the set point memory This function is accessed from the temperature display function by pressing SET The number of the set point memory currently being used is shown at the left on t
30. na heavy industrial setting 2 RxD Lr 2 RxD the serial cable must be limited 3TxD 1 3 TxD to ONE meter 5 GND 5600 6NC 6 DSR Setu p 7 RTS LLL s 7 5 8CTS 867 Before operation the serial in 9NC 9NC terface must first be set up by programming the BAUD rate and other configuration param Instrument Computer DTE Connector Connector eters These parameters are DB S Pin DB 25 Pin programmed within the serial interface menu The serial in 2RXDe 2TxD terface parameters menu is out 3TXD d in Fi 4NC 4RTS lined in Figure 4 on page 22 SEND SCIS To enter the serial parameter AA ZEND QE 2 42 Ta programming mode first press 8 CTS e 8DCD EXIT while pressing SET 9NC 20 DTR and release to enter the second Figure 5 Serial Cable Wiring Diagram 37 9150 Portable Furnace User s Guide 38 9 1 2 1 9 1 2 2 9 1 2 3 9 1 2 4 ary menu Press SET repeatedly until the display reads CAL Press UP until the serial interface menu is indicated with 5E 71A L Finally press SET to enter the serial parameter menu In the serial interface parameters menu are the BAUD rate the sample rate the duplex mode and the linefeed parameter BAUD Rate The BAUD rate is the first parameter in the menu The display prompts with the BAUD rate parameter by showing b AU d Press SET to choose to set the BAUD ra
31. ngs Function Action 1 up stop 2 up down stop 3 up repeat 4 up down repeat 27 9150 Portable Furnace User s Guide 28 8 4 5 8 5 8 6 Program mode Press SET to adjust 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 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 stop the program Start cycle from beginning Press SET to activate the new program control command and return to the temperature display SET Activate new command Secondary Menu Functions which are used less often are accessed within the secondary menu The secondary menu is accessed by pressing SET and EXIT simulta neously and then releasing The first function in the secondary menu is the heater power display 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
32. o either set a parameter or display a parameter depending on whether or not a value is sent with the command following a character For example s lt CR gt returns the current set point and s 150 0 lt CR gt sets the set point to 150 0 degrees In the following list of commands characters or data within brackets and are optional for the command A slash denotes alternate characters or data Numeric data denoted by may be entered in decimal or exponential notation Characters are shown in lower case although upper case may be used Spaces may be added within command strings and are ignored Backspace BS ASCII 8 may be used to erase the previous character A terminating CR is im plied with all commands 39 9150 Portable Furnace User s Guide Table 2 Communications Command Summary Command Command Returned Acceptable Command Description Format Example Returned Example Values Display Temperature Read current set point s etpoint S set 9999 99 C or F set 150 0 C Set current set point to n s etpoint n s 450 Instrument Range Set temperature units u nits c f CorF Set temperature units to Celsius ufnits c u C Set temperature units to u nits f u f Fahrenheit Read scan function sc an SC scan ON or OFF scan ON Set scan function sc an on of f ON or OFF Turn scan func
33. of a linefeed character LF ASCII 10 after transmission of any carriage return The linefeed parameter is indicated by 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 The user should have a list of these constants and their settings with the manual CAUTION DO NOT change the values of the furnace calibration con stants from 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 8 Controller Operation Calibration Parameters 8 12 1 8 12 2 8 12 3 CAL Calibration parameters menu Press SET five times to enter the menu The calibration parameters menu contains the parameters Hard Cutout CT1 1 CT2 CE2 CT3 and 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 CT1 CT2 and CT3 The calibration parameters CT1 CT2 and CT3 are the calibration temper
34. of time set by the user The user can select one of four different cycle func tions The Ramp and Soak Menu is accessed by pressing SET and UP simultaneously Program Points The 9150 contains eight program points Each program point contains a set 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 962 4 Well temperature gt Access and Soak Program Menu Prob Soak Program PERLE OI ELLE EEE Press SET to access the number of program points Number of Program Points The first parameter in the program menu is the number of program points to cy cle through Up to 8 set points can be used in a ramp and soak program 8 Number of program points to cycle through Use the UP and DOWN buttons to change the program points The valid range is from 2 to 8 Paz 4 New number of program points DEDE Press SET to continue Pressing EXIT causes any changes made to the pa rameter to be discarded SET Accept the new number of program points 25 9150 Portable Furnace User s Guide 26 8 4 3 Program Set Poin
35. onstant Temperature Block Assembly 17 6 3 1 Constant Temperature Block 17 6 3 2 Probe Sleeves and Tongs sis merw hea HER ce lan ain 17 7 1 19 7 1 Changing Display Units o 19 7 2 Switching to 230V Operation 19 8 Controller Operation 21 8 1 Well Temperature s 4 sss xo dass db 21 8 2 Temperature Set point 21 8 2 1 Programmable Set points 21 8 2 2 Setpoint Value s sg a UE de a ene Le OS 23 8 2 3 Temperature Scale Units 23 8 3 SCA 2 de GSS TTD 24 8 3 1 SCAN Control 2 2 4 dece qe Rod 3e dem oe ee 24 8 3 2 Scan RAT s aus o ee GTS qo Url 24 84 Ramp and Soak Program 25 8 4 1 Program Points 4 3 ue eor mes pie doge xd aa de 25 8 4 2 Number of Program Points 2 4 4406 ae AAP aR EE x 25 8 4 3 Program Sot POL 2 qoe oue erg eg Sog US RU 26 8 4 4 Program Function Mode 27 8 4 5 Program Controle esclave Ram edu s Rd 28 8 5 Secondary Menu p dae bate ae us A Ee pm gs 28 8 6 Heater Power oeg udo dam ok ne ds Y nat ORI gt 28 8 7 Setpoint Voltage 29
36. perature The factory default and maximum are set to 1200 For safety a user can adjust the HL down so the maximum temperature set point is restricted HL High Limit parameter Press SET to enable adjustment of HL SET Access High Limit 1200 Flashes the current value and then displays the value for adiusbmeni 1200 0 Current HL setting Adjust the HL parameter digit by digit using UP DOWN and SET as each digit flashes 1905 9 New HL setting D AAA BN Press SET to accept the new temperature limit Soft Cutout The Soft Cutout parameter is used by the controller to shut the unit down dur ing over temperature conditions SoFtto Soft Cutout parameter ped Press SET to enable adjustments of the Soft Cutout SET Access Soft Cutout 31 9150 Portable Furnace User s Guide 32 8 10 3 8 11 12025 Flashes the current value and then displays the value for nce M ent 1025 0 Current Soft Cutout setting NESIRERaR LEE EL ER EL III LIRE Adjust this parameter by using UP DOWN and SET as each digit flashes 1200 0 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 SCE Gut and Err 8 Cutout Re
37. point cooling down or controlling at a constant temperature Monitor ing the percent heater power lets the user know how stable the well temperature is With good 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 8 Controller Operation Set point Voltage 8 7 8 8 EXIT simultaneously and release The heater power is displayed as a percent age of full power 362 4 i Well temperature ev Access heater power in secondary menu 100 0 P Heater power in percent 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 The value of the set point voltage changes when the set point temperature is changed and also when DCI and DC2 are adjusted sex fr Access heater power in secondary menu 100 0 P Heater power in percent SET Access set point voltage 11 8340 Set point voltage in millivolts To exit out of the secondary menu press EXIT To continue on to the propor tional band setting function press SET Proportional Band In a proportional controller such a this the heater output power is proportional to the well temperature over a limited range of temperatures around the set point This
38. ration Menu nal SCAN 1 SET SET EXIT Program Function Mode 4 EXIT EXIT EXT der Operating Serial Mode Parameters Interface Le DOWN Cal Menu Menu Menu SET EXIT lt a SET SET 5 SET xs Prog Y 3 HL BAUD E Hard SET EXIT Rate cut out SET EXT SET EXT m Y 8 Adjust Select CT1 a BAUD Rate 2 T SET EXIT m lemj Y 5 Soft al Sample 2 Adjust CTI Cut out Period SET Ex SET EXT S SET EXIT SET Exit gt Cut out Duplex Adjust CE1 Reset Mode Mode SET Ex SET EXIT A Select CT2 SETEXIT SET EXIT SET EXT C Linefeed xl Da Adjust CT2 Select CE2 SET EXIT SET Z Adjust CE2 Select CT3 Adjust CT3 Select CE3 g 5 Y SET EXIT Figure 4 Controller Operation Flowchart 22 8 Controller Operation Temperature Set point 8 2 2 8 2 3 200 0 Well temperature in degrees Celsius SET Access set point memory i e 00 Set point memory 1 200 0 C currently used 5 800 New set point memory 5 900 0 C Press SET to accept the new selection and ac
39. rec ommended by Hart users should check with Hart Scientific Customer Service to be sure that the proposed method will not damage the equip ment e Ifthe instrument is used in a manner not in accordance with the equip ment design the operation of the furnace may be impaired or safety haz ards may arise e The over temperature cutout should be checked every 6 months to see that itis working properly 47 13 Troubleshooting 13 13 1 Troubleshooting This section contains information on troubleshooting CE Comments and a wiring diagram Troubleshooting Problems Possible Causes and Solutions In the event that the instrument appears to function abnormally this section may help to find and solve the problem Several possible problem conditions are described along with likely causes and solutions If a problem arises please read this section carefully and attempt to understand and solve the problem If the problem cannot otherwise be solved contact Hart Scientific Customer Ser vice for assistance 1 801 763 1600 Be sure to have the model number and serial number of your instrument available Problem Possible Causes and Solutions Incorrect temperature Incorrect calibration parameters Find the values for CT1 CT2 CT3 CE1 CE2 reading and CE3 on the Report of Calibration that was shipped with the instrument or from subsequent calibrations of the instrument Reprogram the parameters into the Model 9150 memo
40. roper use the instrument will provide continued accurate calibration of temperature sensors and devices The user should be familiar with the safety guidelines and operating procedures of the furnace as described in this manual 3 Specifications and Environmental Conditions Specifications 3 1 3 2 Specifications and Environmental Conditions Specifications Temperature Range 150 1200 C 302 2192 F Display Resolution 0 1 to 999 9 1 above 1000 Stability 0 5 C Display Accuracy 5 0 C Well Diameter 1 25 32 mm Well Depth 4 102 mm Heating Time 35 minutes to 1200 C Cooling Time 140 minutes with block Well to Well Uniformity 2 5 C insert 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 Ib 13 kg Fault Protection Sensor burnout and short protection over temperature thermal cutout Environmental Conditions Although the instrument has been designed for optimum durability and trou ble free operation it must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and clean ing recommendations can be found in the Maintenance Section of this manual The instrument operates safely under the following conditions e temperature range
41. ry 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 Sequence Factory Reset Sequence Hold the SET and EXIT buttons down at the same time while powering up the instrument After the instrument displays 1 n E re lease the buttons The display shows 9 150 and then displays the firmware version After performing the master reset sequence all of the configuration pa rameters are reset to their default values Reprogram the calibration parameters into the Model 9150 memory see Section 8 12 Calibration Parameters and any other applicable configuration parameters Allow the instrument to stabilize and verify the accuracy of the temperature reading The instrument heats or Incorrect scan and scan rate settings The scan and scan rate settings may be cools too quickly or too setto unwanted values Check the Scan and Scan Rate settings The scan may slowly be off if the unit seems to be responding too quickly The scan may be on with the Scan Rate set low if unit seems to be responding too slowly Incorrect heater switch polarity The PEM and the heater voltage switch may not be set for the same voltage Check both settings and correct as needed 49 9150 Portable Furnace User s Guide 50 13 2 13 2 1 13 2
42. s the set point tempera 45 9150 Portable Furnace User s Guide ture 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 46 12 Maintenance 12 Maintenance e The calibration instrument has been designed with the utmost care Ease of operation and simplicity of maintenance have been a central theme in the product development Therefore with proper care the instrument should require very little maintenance Avoid operating the instrument in an oily wet dirty or dusty environment e If the outside of the instrument becomes soiled it may be wiped clean with a damp cloth and mild detergent Do not use harsh chemicals on the surface which may damage the paint e 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 e Ifa hazardous material is split on or inside the equipment the user is re sponsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material e Ifthe 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 e Before using any cleaning or decontamination method except those
43. set 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 by the operator The parameter is indicated by CEorSE Cutout reset mode parameter Press SET to access the parameter setting Normally the cutout is set for au tomatic mode Serial Interface Parameters The serial RS 232 interface parameters menu is indicated by SEriAL Serial RS 232 interface parameters menu The serial interface parameters menu contains parameters which determine the operation of the serial interface The parameters in the menu are BAUD rate sample period duplex mode and linefeed 8 Controller Operation Serial Interface Parameters 8 11 1 8 11 2 8 11 3 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 i Serial BAUD rate parameter Press SET to choose to set the BAUD rate The current BAUD rate value is then be displayed 2400 b 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 4800 b New BAUD rate Press SET to set the BAUD rate to the new value or EXIT to abort the op eration and skip
44. ss SET to access the scan control 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 Scan Control The scan is controlled with the scan on off function that appears in the main menu after the temperature scale units Se Gn Scan function on Press SET to accept the present setting and access the scan rate SET Accept scan setting Scan Rate The next function in the main menu is the scan rate The scan rate can be set from 1 to 99 9 C minute The maximum scan rate however is actually limited by the natural heating or cooling rate of the instrument This rate is often less than 100 C minute especially when cooling The scan rate function appears in the main menu after the scan control function The scan rate units are in degrees per minute degrees C or F depending on the selected units 8 Controller Operation Ramp and Soak Program 8 4 8 4 1 8 4 2 Press SET to accept the new scan rate and continue SET 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 pe riod
45. table Furnace User s Guide 16 6 2 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 The airflow is directed upward and can be extremely hot Front Panel The front panel consists of the controller display and the controller keypad as shown in Figure 2 9150 PORTABLE FURNACE 150 C to 1200 C Hart Scientific Figure 2 Front Panel Controller Display The digital display is an important part of the temperature controller because it 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 other operating parameters and access and set calibration parameters Setting the control temperature is done directly in degrees of the current scale It can be set to one tenth of a degree Celsius or Fahrenheit The functions of the buttons are as follows SET Used to display the next parameter in the menu and to store parameters to the displayed value D
46. te 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 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 Sample Period The sample period is the next parameter in the menu and prompted with 5PEr The sample period is the time period in seconds between temperature measurements transmitted from the serial interface If the sample rate is set to 5 the instrument transmits the current measurement over the serial interface ap proximately every five seconds The automatic sampling is disabled with a sample period of 0 Press SET to choose to set the sample period Adjust the period with UP or DOWN and then use SET to set the sample rate to the displayed value Duplex Mode The next parameter is the duplex mode indicated with dUPL The duplex mode may be set to half duplex HALF or full duplex FULL With full duplex any commands received by the thermometer via the serial interface are immediately echoed or transmitted back to the device of origin With half du plex the commands are executed but not echoed The default setting is full du plex The mode may be changed using UP or DOWN and pressing SET L
47. the set point temperature The well may require 35 minutes to reach the set point depending on the span Another 10 to 20 minutes is required to stabilize within 0 5 C of the set point Ultimate sta bility may take 15 to 20 minutes more of stabilization time 6 Parts and Controls Back Panel 6 1 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 FLUKE CORPORATION HART SCIENTIFIC DIVISION www hartscientific com READ MANUAL TO CHANGE VOLTAGE T 115V 12 AF 250V 230V 6 3 A F 250V N 50 60 Hz 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 VAC 10 operation Heater Voltage Switch To be used only when changing the input voltage See Section 7 2 for instructions Serial Port A DB 9 male connector is present for interfacing the calibrator to a computer or terminal with serial RS 232 communications 15 9150 Por
48. ting these Service Centers for support please have the following information available Model Number Serial Number Voltage Complete description of the problem 2 Introduction Introduction The Hart Scientific 9150 thermocouple furnace can be used for calibrating ther mocouple and temperature probes Calibrations may be done over 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 The furnace features e Rapid heating and cooling e Interchangeable multiple hole probe sleeves e Convenient handle e RS 232 interface Built in programmable features include e Temperature scan rate control e Eight set point memory e Adjustable readout in C or F The temperature is accurately controlled by Hart s hybrid analog digital con troller The controller uses a Type S thermocouple 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 protection de vices insure user and instrument safety and protection The 9150 calibrator furnace was designed for portability low cost and ease of operation Through p
49. tion on sc an on sc on Turn scan function off sc an of f sc of Read scan rate sr ate sr srat 999 99 C or F min srat 10 0 C min Set scan rate to n degrees per srfate n sr 5 1 to 99 9 minute Secondary Menu Read proportional band setting prlop band pr pb 999 9 pb 15 9 Set proportional band to n pr op band n pr 8 83 0 1 to 100 Read heater power po wer po po 999 9 po 1 duty cycle Ramp and Soak Menu Read number of programmable pn pn pn 9 pn 2 set points Set number of programmable pn n pn 4 1108 set points to Read programmable set point psn ps3 psn 9999 99 C or F psi 50 00 C number n Set programmable set point num psn n ps3 50 1 to 8 Instru bernton ment Range Read program set point soak ptn pt3 tin 999 tit 5 time Set program set point soak time ptn n pt3 5 0 to 14400 to n minutes Read program scan rate pxn px3 srn 99 9 sr3 11 3 Set program scan rate pxn n px3 10 1 to 99 9 Read program control mode prog OFF or ON prog OFF Set program control mode pce g o s top c ont GO or STOP or CONT Start program 0 0 pc g 40 9 Digital Communication Interface Interface Commands Table 3 Communications Commands Summary continued Command Command Returned Acceptable Command Description Format Example Returned Example Values Stop program 5 5 Continue program
50. to objects Probes may be ex tremely hot or cold when removed from the instrument 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 tem perature Never place any objects other than the special probe sleeves sup plied with the calibrator into the well e Use only a grounded AC mains supply of the appropriate voltage to power the instrument Refer to Section 3 1 Specifications for power de tails e Before initial use after transport and anytime the furnace has not been energized for more than 10 days the instrument needs to be energized for a dry out period of 1 2 hours before it can be assumed to meet all of the safety requirements of the IEC 1010 1 e The instrument is equipped with operator accessible fuses If a fuse blows it may be due to a power surge or failure of a component Replace the fuse once If the fuse blows a second time it is likely caused by fail ure of a component part If this occurs contact Hart Scientific Customer Service Always replace the fuse with one of the same rating voltage and type Never replace the fuse with one of a higher current rating e fa mains supply power fluctuation occurs immediately turn off the in strument Power bumps from brownouts and blackouts could damage the instrument Wait until the power
51. ts The controller allows the user to adjust up to eight program points These are accessed by pressing SET after setting the number of program points as de scribed in Section 8 4 2 Each program point has three associated parameters the program set point the program scan rate and the program hold or soak time After adjusting the number of program points press SET Program point 1 Use the UP or DOWN buttons to select any of the 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 PAPE EEE LEE LIL EE LITE TE III LIEN Le New program set point value for program point 4 Press SET to save the new set point value or EXIT to discard changes SET Accept the program point set point The next value to edit is the program soak time Program point 4 soak time Press SET to edit the program soak time SET Edit program point soak time 86001 Current program point soak time 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
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