10.2.1 - TEquipment.NET
Contents
1. 26 10 2 3 Accuracy Check 26 11 Maintenance 27 12 Troubleshooting 29 12 1 Troubleshooting 29 12 2 CE Comments 30 12 2 1 EMC Directive 30 12 2 2 Low Voltage Directive 31 12 3 Wiring Diagram 32 ii 1 Before You Start 1 1 Symbols Used Table 1 lists the symbols used on the instrument or in this manual and the meaning of each symbol Hart Scientific Manual Rev 082301 1 1 Before You Start Symbol Description AC AC DC Battery CE DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Read the User s Manual Off On Table1 International Electrical Symbols 1 2 Safety Information Use the instrument only as specified in this manual Otherwise the pro tection provided by the instrument may be impaired The following definitions apply to the terms Warning and Caution Warning identifies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the in strument being used2. 5 Quick Start 5 1 Unpacking Unpack the calibrator carefully and inspect it for any damage that may have occurred during shipment If there is shipping damage notify the carrier immediately Verify that the following components are present 9131 Calibrator Power Cord Manual 5 2 Set up Place the calibrator on a flat surface with at least 6 inches of free space around the instrument The prop may be swung down to raise the front of the instrument from a horizontal position Plug the power cord into a grounded mains outlet Observe that the nominal voltage corresponds to that indicated on the back of the calibrator Turn on the power to the calibrator by toggling the power switch on The fan should begin quietly blowing air through the instrument and the con troller display should illuminate after 3 seconds After a brief self test the controller should begin normal operation If the unit fails to operate please check the power connection The heater will start operating to bring the temperature of the calibrator to the set point temperature and the display will begin to show the actual target temperature 5 3 Power Plug the calibrator power cord into a mains outlet of the proper voltage frequency and current capability Refer to Section 3 1 Specifications for power details Turn the calibrator on using the switch on the rear panel The calibrator will turn on and begin to heat to the previously pro gramm
3. it should not be forced be yond the inclined position of the calibrator 1 3 Customer Service Information Hart Scientific can be contacted by writing to Hart Scientific Inc 799 E Utah Valley Drive American Fork UT 84003 9775 Or by calling or faxing Telephone 801 763 1700 Fax 801 763 1010 Our World Wide Web site is www hartscientifc com E mail support hartscientific com When calling Hart Scientific Customer Service please have the following information available Model Number Serial Number Voltage Hart Scientific Manual Rev 082301 3 1 Before You Start 2 Introduction Hart Scientific s Model 9131 HDRC black body temperature calibrator and temperature reference is a small portable instrument designed for quick on site checks and calibration of infrared IR thermometers and sensors It features a one inch diameter aperture with a 0 95 emissivity A 1 8 inch diameter reference well allows insertion of a small PRT for refer ence or unit calibration The instrument is controlled by a microprocessor based digital PID temperature controller and uses a precision platinum RTD as a sensor with a heater to control the target temperature The controller display will show the target temperature and also the set point temperature The temperature may be set to any temperature within the range of 35 C to 400 C in 0 1 degree increments by using the three but tons on the control panel The cal
4. 082301 17 7 General Operation The displayed target temperature should be within 0 2 degrees of the set point temperature Aim the IR thermometer pyrometer carefully at the target The thermometer should be positioned so that its spot diameter area measured is within the area of the target Observe the temperature indication on the thermometer while moving the spot up and down and left and right to determine the maximum reading Compare that maxi mum reading and the actual temperature indication on the 9131 18 Manual Rev 082301 9131 7 General Operation 8 Controller Operation The controller is fully programmable Each of the parameters such as proportional band integration time display units and calibration offset can be viewed and altered The controller has been configured at the fac tory for optimum accuracy stability and response time These parame ters should not be changed although the user is free to do so if desired The following section explains how the controller is programmed and par ticularly how to switch the parameter units from the factory settings 8 1 Programming The controller is shipped from the factory with a software lock on all pro grammable parameters This prevents accidental accessing and chang ing of the pre set parameters The 9131 parameters can be browsed and read without unlocking the software lock mentioned above See Figure 4 Programming the controller and accessing the parameter
5. Section of this manual The instrument operates safely under the following conditions temperature range 5 40 C 41 104 F ambient relative humidity 15 50 pressure 75kPa 106kPa mains voltage within 10 of nominal vibrations in the calibration environment should be minimized Hart Scientific Manual Rev 082301 7 3 Specifications and Environmental Conditions altitude less than 2 000 meters 3 3 Warranty Hart Scientific Inc 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 war ranty extends only to the original purchaser and shall not apply to any product which in Hart s sole opinion has been subject to misuse alter ation abuse or abnormal conditions of operation or handling Software is warranted to operate in accordance with its programmed in structions 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 de termined upon examination by Hart to be defective If Hart determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal conditions or operation or handling Hart will repair the product and bill the purchaser for the reasonable co
6. View 13 6 3 Front Panel 14 7 General Operation 17 7 1 Set up 17 7 2 Setting the Temperature 17 7 3 IR Thermometer Calibration 17 8 Controller Operation 19 8 1 Programming 19 8 2 Locking Unlocking the Controller 19 8 3 Switching display units 21 9 Test Probe Calibration 23 9 1 Calibration Methods 23 i 9 1 1 Direct Calibration 23 9 2 Dry Well Characteristics 23 9 2 1 Stabilization and Accuracy 23 10 Calibration Procedure 25 10 1 Pre Calibration 25 10 2 Calibration 25 10 2 1 Span Adjust 25 10 2 2 Zero Adjust
7. infrared probe may be compared to the calibrator display temperature The dis play temperature should be stable to within 0 1 C for best results Be sure that the infrared thermometer is pointed at the target with the correct angle Make sure that the thermometer is close enough for good reading contact Caution Never introduce any foreign material onto the tar get Fluids etc can leak into the calibrator causing damage to the calibrator 9 2 Dry Well Characteristics Understanding the thermal characteristics of the calibrator can help you achieve the best accuracy and efficiency possible 9 2 1 Stabilization and Accuracy The stabilization time of the calibrator will depend on the conditions and temperature involved Typically the calibrator will be stable to 0 2 C within 5 minutes of reaching the set point temperature as indicated by the display Ultimate stability will be achieved 10 to 20 minutes after reaching the set temperature Decreasing the time required for the calibration process can be accom plished by knowing how soon to make the measurement It is recom mended that typical measurements be made at the desired temperatures with the desired test probes to establish these times Hart Scientific Manual Rev 082301 23 9 Test Probe Calibration 10 Calibration Procedure 10 1 Pre Calibration Make sure all parameters in the controller are set according to the pa rameter table provided in the o
8. settings is done using the three controller keys just below the display The program menu is entered and exited by pressing the L and M buttons at the same time for three seconds After three seconds the controller will enter level 1 of its menu The display will toggle between tunE and oFF From this point in the control menu the L and M buttons can be used to step up or down through the parameters of level 1 To access another level of the controller press the M button to step through the controller parameters to the bottom of level 1 until the display toggles between LEUL and 1 From this point the other 2 levels are accessed by pressing and holding in the button and pressing the L button to step to levels 2 or 3 Each of the 3 levels can be stepped through in the same way using the L or M button 8 2 Locking Unlocking the Controller In order to change any parameter the controller will have to be unlocked The lock unlock parameter is accessed by going into level 3 as explained above Once inside level 3 see Figure 4 step up until the Uer and 2 is toggling on the display Now press and hold the L and M buttons simulta neously for 10 seconds The LoCK and ALL should now be alternating on the display see Figure 5 Press the button and step down using the M button until nonE appears in the display Holding down the L and M but tons for 3 seconds from this point will unlock all controller parameters and settings and return the co
9. temperatures Precautions must be taken to prevent personal injury or damage to objects The instrument is programmed and calibrated at the factory for opti mum performance and should never need to be readjusted If the unit is suspected to be out of calibration or in need of repair please con tact Hart Scientific Customer Service for assistance Never attempt to modify the unit or alter the programmed constants Use only a grounded AC mains supply of the appropriate voltage to power the instrument Refer to Section 3 1 Specifications for power details Do not allow foreign material to come in contact with the black body surface Before initial use after transport and anytime the calibrator has not been energized for more than 10 days the instrument needs to be en ergized 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 If a mains supply power fluctuation occurs immediately turn off the in strument Power bumps from brown outs and black outs could dam age the instrument Wait until the power has stabilized before re energizing the instrument The calibrator is equipped with an internal thermal fuse and an electri cal fuse If a fuse blows it is likely caused by failure of another part If this occurs the calibrator should be returned to the factory for inspec tion Hart Scientific Manual Rev 082301 9 4 Safety Guidelines
10. Hart Scientific Cus tomer Service to be sure that the proposed method will not damage the equipment If the instrument is used in a manner not in accordance with the equip ment design the operation of the calibrator may be impaired or safety hazards may arise The 9131 calibrator is programmed and calibrated at the factory for optimum performance Field adjustment to the program should not be necessary If the unit is suspected to be out of calibration or in need of Hart Scientific Manual Rev 082301 27 11 Maintenance repair please contact the factory for assistance The unit should be recalibrated at the factory yearly Never attempt to modify the unit or alter the programmed constants 28 Manual Rev 082301 9131 11 Maintenance 12 Troubleshooting If problems arise while operating the 9131 this section provides some suggestions that may help you solve the problem A wiring diagram is also included Opening the unit without contacting Hart Scientific Cus tomer Service may void the warranty 12 1 Troubleshooting Below are several situations that may arise followed by suggested ac tions for fixing the problem You may need to refer to Section 8 Control ler Operation and to Figures 4 and 5 Refer to the Report of Calibration for any unique controller values Problems Causes and Solutions Incorrect Temperature Reading Check the sensor span adjust SPAn in Level 2 to see that it is set correctly Ch
11. Model9131HDRC InfraredCalibrator User sGuide Rev 082301 Rev 082301 Copyright 1997 Hart Scientific Inc 799 E Utah Valley Drive American Fork Utah 84003 9775 Telephone 801 763 1600 Fax 801 763 1010 Internet http www hartscientific com E mail support hartscientific com Table of Contents 1 Before You Start 1 1 1 Symbols Used 1 1 2 Safety Information 2 1 3 Customer Service Information 3 2 Introduction 5 3 Specifications and Environmental Conditions 7 3 1 Specifications 7 3 2 Environmental Conditions 7 3 3 Warranty 8 4 Safety Guidelines 9 5 Quick Start 11 5 1 Unpacking 11 5 2 Set up 11 5 3 Power 11 6 Parts and Controls 13 6 1 Rear Panel 13 6 2 Prop
12. WARNINGS To avoid possible electric shock or personal injury follow these guidelines 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 The chassis is Hot above 350 C 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 manual Use of this instrument at HIGH TEMPERATURES for extended periods of time requires caution Completely unattended operation is not recommended for safety reasons Always replace the fuse with one of the same rating voltage and type If the instrument is used in a manner not in accordance with the equipment design the operation of the dry well may be im paired or safety hazards may arise Follow all safety guidelines listed in the user s manual CALIBRATION EQUIPMENT should only be used by TRAINED PERSONNEL CAUTIONS To avoid possible damage to the instrument follow these guide lines Never allow any foreign material to come in contact with the black body surface 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 2 Manual Rev 082301 9131 1 Before You Start The prop was not designed to be used as a handle for carrying the instrument To avoid damage
13. e can be changed by pressing and holding in either the button marked L or M until the desired set point is reached The longer the keys are held down the faster the set point will change When the desired set point temperature is reached releas ing button immediately changes the display back to the actual block temperature and the controller begins to heat or cool to the new set point temperature 16 Manual Rev 082301 9131 6 Parts and Controls 7 General Operation 7 1 Set up Place the calibrator on a flat surface with at least 6 inches of free space in front of and behind the instrument The prop may be swung down to raise the front of the instrument from a horizontal position Plug the power cord into an AC grounded outlet of the appropriate voltage The target must be clear of any foreign objects Turn on the power to the calibrator by toggling the switch at the rear of the instrument to the on po sition The controller display should illuminate and after a few second the fan should begin blowing air through the instrument If the unit fails to op erate check the power connection When the calibrator is first powered on all of the LED segments will temporarily illuminate as the controller performs a brief self test and set up The heater will begin operating to bring the temperature of the calibrator to the set point temperature and the display will then begin to show the actual target temperature 7 2 Setting the Temperat
14. eck the zero sensor error 2Er 0 in Level 2 to see that it is set correctly Check input sensor inPt in Level 2 is set to rtd If not Master Reset the controller See the Master Reset instructions at the bottom of this table The display is off after waiting 30 seconds Check that the power cord is plugged in If the unit has power and the display is off the fuse may be blown and the unit needs to be returned to Hart Scientific for repair Contact Hart Scientific Cus tomer Service The display flashes In put Fail There is a sensor error Contact Hart Scientific Cus tomer Service The display flashes In put None Contact Hart Scientific Customer Service Unit will not heat to 400 C The ambient temperature is too low User cannot set the tem perature to the maximum or minimum values of the unit Check to see that hi SC in Level 2 is set to 400 Check to see that Lo SC in Level 2 is set to 0 0 Controller lock up Do a Master Reset of the controller See the Master Reset instructions at the bottom of this table Hart Scientific Manual Rev 082301 29 12 Troubleshooting Problems Causes and Solutions Temperature readout is not the actual tempera ture of the well With the unit stable slowly rotate the unit If no change occurs the unit may need to be calibrated Contact Hart Scientific Customer Service If the dis play changes more than twice the normal display deviatio
15. ed temperature set point The front panel LED display will indicate the actual calibrator temperature Hart Scientific Manual Rev 082301 11 5 Quick Start 6 Parts and Controls The user should become familiar with the calibrator and its parts Refer to Figures 1 2 and 3 6 1 Rear Panel Power Cord The power cord Figure 1 attaches to the back side of the 9131 It plugs into a standard 115 VAC optional 230 VAC grounded socket Power Switch The power switch is located on the back panel of the cal ibrator The switch is either on or off The on position is for normal opera tion The off position disconnects power to the entire unit Fan A fan inside the calibrator runs continuously when the unit is being operated This provides cooling to the instrument Allow 6 inches of open space in front and behind the calibrator to allow adequate ventilation 6 2 Prop View Prop The prop Figure 2 is located on the bottom side of the 9131 It lays flat against the bottom of the calibrator when not in use It can be Hart Scientific Manual Rev 082301 13 6 Parts and Controls Power Switch Power Cord Fan Electronics Fuse Internal 115 V 50 60 Hz 1 5 Amp Max American Fork Utah 84003 Made In U S A Serial No 4A001 Figure 1 Rear Panel swung down into a standing position when using the instrument at an in clined position Caution The prop was not designed to be used as a han dle for carrying
16. ibrator s multiple fault protection devices insure user and instrument safety and protection The 9131 was designed for portability speed and ease of operation It s use will provide a means of quick accurate calibration and comparisons of IR thermometers or pyrometers and sensors Hart Scientific Manual Rev 082301 5 2 Introduction 3 Specifications and Environmental Conditions 3 1 Specifications Temperature Range 35 C to 400 C 95 F to 752 F Accuracy 1 C to 100 C 2 F to 212 F 2 C to 250 C 4 F to 482 F 3 C to 400 C 6 F to 752 F Resolution 0 1 Stability 2 sigma 0 25 C 35 C to 200 C 0 45 F 95 F to 392 F 0 35 C 200 C to 300 C 0 63 F 392 F to 572 F 0 45 C 300 C to 400 C 0 81 F 572 F to 752 F Heating Times 15 minutes to maximum Cooling Times 400 to 100 C 25 minutes Stabilization 3 minutes Target Emissivity 0 95 Aperture Diameter 1 25 4 mm Power 115 VAC 10 1 5 A 50 60 Hz or 230 VAC 10 0 75 A 50 60 Hz 175 W Size 2 25 H x 4 9 W x 5 9 D 57 mm x 125 mm x 150 mm Weight 2 lb 3 oz 1 08 kg 3 2 Environmental Conditions Although the instrument has been designed for optimum durability and trouble free operation it must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and cleaning recommendations can be found in the Mainte nance
17. ing 12 2 2 Low Voltage Directive 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 IEC 1010 2 010 EN 61010 2 010 standards Hart Scientific Manual Rev 082301 31 12 Troubleshooting 12 3 Wiring Diagram 32 Manual Rev 082301 9131 12 Troubleshooting 801 763 1600 84062 0435 American Fork Utah DATE APPROVAL BY DESCRIPTION LTR REVISIONS TITLE SHEET OF SCALE RELEASE DRAWN DATE APPROVAL SCIENTIFIC HART REV DWG NO 10 30 95 CNG 0 1 MF 0 22 MF 115 230 GRN N H N H H N RED BLK 4 4 3 3 3 BLK WHT J4 J2 J3 J1 PWR CTL HTR FAN BOARD POWER WHT RED BLK WHT RED WHT YEL BLK BRN 1 1 A021 2S17 9100 DRYWELL WIRING POWER SWITCH AC LINE HEATER SENSOR CONTROLLER TEMPERATURE AC VOLTAGE N L RELAY SWITCH SSR DRIVE BLOCK DRYWELL 8 7 6 5 4 3 2 1 RTD PT100 Figure 6 Wiring Diagram
18. loth and mild detergent DO NOT use harsh chemicals on the surface which may damage the paint It is important to keep the target of the calibrator clean and clear of any foreign matter DO NOT use fluid to clean the target The calibrator should be handled with care Avoid knocking bumping or dropping the calibrator Due to the size and portability of the 9131 it is vulnerable to being shocked and dropped as it is carried around It may be easily dragged off from a counter top while in use Never string probe cables or the power cord across an isle where people could trip over them and pull the calibrator from its place DO NOT place objects on top of the calibrator or apply excessive pressure to the chassis With a little care this calibrator will provide long lasting trouble free operation DO NOT slam any objects into the target This type of action can cause a shock to the sensor If a hazardous material is spilt on or inside the equipment the user is responsible for taking the appropriate decontamination steps as out lined by the national safety council with respect to the material If the mains supply cord becomes damaged replace it with a cord with the appropriate gauge wire for the current of the instrument If there are any questions call Hart Scientific Customer Service for more in formation Before using any cleaning or decontamination method except those recommended by Hart users should check with
19. n another unit in the area could be emitting therefore energy Move the unit to a different loca tion and rotate the unit again If the temperature is correct in this new area or deviates differently than the first area therefore energy is present in the room If you have to perform the test in the effected area use the comparison test to eliminate any pos sible errors Master Reset In Level 3 set rSEt The controller transfers to Level 5 where the following parameters must be re entered InPt rtd Unit C Sp1 D rLy Re enter Level 1 2 and 3 parameters Refer to Fig ures 4 and 5 and the Report of Calibration for Level 1 Level 2 and Level 3 values to ALL 12 2 CE Comments 12 2 1 EMC Directive Hart Scientific s equipment has been tested to meet the European Elec tromagnetic Compatibility Directive EMC Directive 89 336 EEC The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested For units used in the field a slight degradation of accuracy may be no ticed between 300 350 MHz with a field intensity of 10V M at the unit A piece of equipment in proximity to the unit under test must emit greater than 1000 times the permissible CE standard EN55022 at these spe cific frequencies to have any effect on the unit Units used in a laboratory are not effected See the Troubleshooting Section above 30 Manual Rev 082301 9131 12 Troubleshoot
20. ne none LEU 3 LEU 3 LEU 2 LEU 2 ALL ALL Program security lock ProG Auto StAY Program mode auto exit switch no AL oFF on Disable SP2 Alarm annunciator di5 5 25 Display sensitivity dEr 5 0 5 Derivative sensitivity Parameter Value Display Alternates Level 4 Entry Point Move up and down in a level with the and buttons Move down a level or change options with the and and and buttons UEr Press and hold the and buttons for 10 seconds to enter the hidden level 4 menu Level 3 Version Parameter ProG Auto StAY Program mode auto exit switch no AL oFF on Disable SP2 Alarm annunciator di5 5 25 Display sensitivity dEr 5 0 5 Derivative sensitivity Return to Level 3 only Locks levels 3 and 4 only Locks levels 2 3 and 4 only Locks all functions No functions or options locked Lock Options Figure 5 Controller Level 4 Parameter Lock Options Programming Chart Once inside level 1 the other levels of the menu may be accessed After looking at the menu chart Figure 4 the user can see that the unit pa rameter is changed within level 2 Press the M button to get to the bottom of level 1 where the LEUL and 1 are shown alternating in the display Press and hold the button and press the L button until the 2 shows on the display Now inside level 2 use the L and M buttons to find the unit parameter Notice how
21. ntroller display to show the block tempera ture Hart Scientific Manual Rev 082301 19 8 Controller Operation 20 Manual Rev 082301 9131 8 Controller Operation SPAn Sensor span adjust rEU L Select SP1 2 LED modes rEU d Selet output modes Direct Reverse burn Burn out protection SP2 d Read SP2 output device rSEt Functions Reset SP2 A FsLO Main SP2 operating mode Alarms Cool strategy PL 2 100 Set SP2 power limit PL 1 100 Set SP1 power limit hAnd oFF SP1 manual power control bnd 2 2 0 Select SP2 Hysteresis or Prop Band LEUL LEUL 2 LEUL 1 SP1 d Read SP1 output device SP1 P 2 Read SP1 output power Not adjustable tune off Select Autotune or Park band 32 Proportional band Gain or Hysteresis int t 1 2 Integral time Reset der t 8 Derivative time Rate daC 2 0 Derivative approach control SP2 b none Subsidiary SP2 mode Alarm latch sequence CyC t 5 0 Proportional cycle time or ON OFF 2Ero Zero sensor error diSP 0 1 Select display resolution oFSt 0 0 Offset Manual reset ChEk Select control accuracy monitor hi SC 400 0 Set full scale SP LY oFF Lock main setpoint SP1 rEAd Read monitor results Lo SC 0 0 Set scale minimum Set 2 20 0 Adjust SP2 setpoint dAta Read Autotune tuning data inPt rtd Select input sensor UEr 0 In 2n Ir 2d uP SC 55d nonE 3 rLY 0 oFF UAr Ct A 2 Software Ver
22. peration manual a Turn the unit on b Set all parameters to the values shown in the chart 10 2 Calibration To calibrate the 9131 you must perform a span adjust zero adjust and accuracy check as explained in the following sections 10 2 1 Span Adjust 1 Record the current span value spancur 2 Set the controller to 50 C Slow Allow the calibrator to stabilize about 15 minutes after reaching the set temperature 3 Record the actual temperature of the calibrator at 50 C Tlow 4 Set the controller to 400 C Shigh Allow the calibrator to stabilize about 15 minutes after reaching the set temperature 5 Record the actual temperature of the calibrator at 400 C Thigh Use only a calibrated minature PRT Contact Hart Scientific for PRT specifications 6 The new span value is calculated by the following formula span error error T T span high low high low c 400 ur where errorhigh is Thigh Shigh and errorlow is Tlow Slow 7 Record and set the new span parameter Hart Scientific Manual Rev 082301 25 10 Calibration Procedure 10 2 2 Zero Adjust Note New temperature measurements must be taken You cannot use the values from span adjust 1 Record the current zero value zerocur 2 Set the controller to 50 C Slow Allow the calibrator to stabilize about 15 minutes after reaching the set temperatu
23. re 3 Record the actual temperature of the calibrator at 50 C Tlow 4 Set the controller to 400 C Shigh Allow the calibrator to stabilize about 15 minutes after reaching the set temperature 5 Record the actual temperature of the calibrator at 400 C Thigh 6 Calculate the zero parameter by averaging the error values zero error error zero low high cur 2 where errorhigh is Thigh Shigh and errorlow is Tlow Slow 7 Record and set the zero parameter 10 2 3 Accuracy Check Set the controller to 50 C Allow about 15 minutes for stabilization after reaching the set point temperature Record the actual temperature of the calibrator Repeat for set points of 100 C 150 C 200 C 250 C 300 C and 400 C If any of the measured temperatures are not within specification repeat the Span Adjust and the Zero Adjust as described in Sections 10 2 1 and 10 2 2 26 Manual Rev 082301 9131 10 Calibration Procedure 11 Maintenance 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 in strument should require very little maintenance Avoid operating the instrument in an oily wet dirty or dusty environment If the outside of the instrument becomes soiled it may be wiped clean with a damp c
24. sion unit C Select C F or Process units CYC 2 on of Select SP2 ON OFF or cycle time Parameter Parameter Parameter Value Value Value Display Alternates Display Alternates Display Alternates Program Entry Point Move up and down in a level with the and buttons Move up and down levels with the and and and buttons 199 3 Press and hold the and buttons for 3 seconds to enter the program mode S T A R T Access to hidden Level 4 Press and hold the and buttons for 10 seconds See separate chart for Level 4 SPAn Sensor span adjust 2Ero Zero sensor error 0 0 Note Values shown are factory default values with the exception of the grayed out parameters and values These settings vary according to the unit calibration and can be found on the unit certification sheet Figure 4 Controller Programming Chart 8 3 Switching Display Units The calibrator is set at the factory to display in C or F At some point the user may want to change units from C to F or from F to C The unit change is a simple one that can be used as an example of changing any of the variables or parameters within the program menu After unlocking the controller as described above press the L and M buttons for 3 sec onds This accesses level 1 of the menu Hart Scientific Manual Rev 082301 21 8 Controller Operation LEUL 4 LocK no
25. st of repair To exercise this warranty the purchaser must forward the product after calling or writing Hart for authorization Hart assumes NO risk for in tran sit damage For service or assistance please contact the manufacturer Hart Scientific Inc 799 East Utah Valley Drive American Fork UT 84003 9775 Phone 801 763 1600 Fax 801 763 1010 E mail support hartscientific com 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 DAMAGES OR LOSS WHETHER IN CONTRACT TORT OR OTHER WISE 8 Manual Rev 082301 9131 3 Specifications and Environmental Conditions 4 Safety Guidelines Operate the instrument in room temperatures between 5 40 C 41 104 F Allow sufficient air circulation by leaving at least 6 inches of space between the instrument and nearby objects Never set ob jects on top of the calibrator The calibrator is a precision instrument Although it has been de signed for optimum durability and trouble free operation it must be handled with care The instrument should not be operated in exces sively wet oily dusty or dirty environments DO NOT operate near flammable environments The instrument can generate extreme
26. the display flashes between unit and C Press and hold the button and press the M button until F shows on the dis play After the buttons are released the display should be flashing unit and F instead of unit and C The change has been made To return to the temperature display either press and hold the L and M buttons for 3 seconds or wait approximately 1 minute and the controller will automatically return This is how all of the adjustable parameters for the controller work on the 9131 HDRC Calibrator The controller may be locked again after changing parameters to avoid accidentally changing one of them Follow the instructions above and replace the nOnE at the LoCK menu with ALL and then exit out of the program menu as ex plained 22 Manual Rev 082301 9131 8 Controller Operation 9 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 reaching the set point temperature After completing calibration allow the block to cool before switching the power off 9 1 Calibration Methods 9 1 1 Direct Calibration Direct calibration involves testing a probe directly against the calibrator s temperature display The advantage of this method is that it is quick and easy Point the infrared probe to be calibrated at the target of the calibrator Avoid any dirt or grit that may cause an inaccurate reading The
27. the instrument To avoid damage it should not be forced beyond the inclined position of the calibrator 6 3 Front Panel Black Body Target Located on the right side while facing the front of the 9131 Figure 3 is the heated target IR thermometers or pyrometers with a spot diameter of one inch or less may be calibrated A hole above 14 Manual Rev 082301 9131 6 Parts and Controls Figure 2 9131 Side View Showing the Prop the target and on top of the instrument allows access to the reference well 1 8 inch diameter Surrounding the target area are small ventilation holes that provide cooling to the instrument Controller Display The numeric LED display shows the target temper ature from 33 C to 400 0 C 92 F to 752 0 F The display shows the set point temperature when the button is pressed Located in the upper Hart Scientific Manual Rev 082301 15 6 Parts and Controls CAUTION HOT SURFACES 9131 HDRC Figure 3 Front Panel and Top View left of the temperature display is the main set point SP1 LED This is the cycle indicator and shows the on off state of the block heater Controller Buttons The three buttons on the controller allow for adjust ment of the set point temperature When pressed the button marked toggles the display from the actual block temperature to the set point temperature with the units of measure being used C or F While hold ing the button the set point temperatur
28. ure The calibrator may be set to any temperature between 33 and 400 0 C in 0 1 C increments To set the temperature simply press and hold the key and the appropriate L or M button until the desired temperature is at tained Pressing the button changes the numeric display to show the set point temperature and activates the L and M keys Note that the lon ger the L or M keys are held down the faster the set point will change When the desired set point temperature is reached release the L or M and the buttons The panel will resume display of the actual block tem perature If the set point temperature is changed the controller will cause the unit to heat or cool to the desired set point temperature The cycle indicator LED will pulse on and off indicating the duty cycle of the heater The dis play will indicate the actual target temperature which continuously changes until it reaches the set point temperature A small overshoot in the temperature is typical as it stabilizes to the set point temperature Three to five minutes is normally required for the target to reach the set point temperature if the set point is adjusted to a higher value It may take a little longer if the set point is adjusted to a lower temperature 7 3 IR Thermometer Calibration For optimum accuracy and stability allow the calibrator to warm up for 30 minutes after power up and 10 15 minutes after setting the temperature Hart Scientific Manual Rev
Download Pdf Manuals
Related Search