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Fluke 9105 User's Manual

1. 19 Controller Function 24 Switch Test Data ates EUR Ros 31 Well temperature fluctuation at various proportional band settings 35 Serial Cable Wiring Diagram RRRRRR 43 9105 Wiring Dingram 4 9107 Wiring Diagram 62 Tables Table 1 International Electrical Symbols 1 Table 2 Communications Commands 47 Table 2 Communications Commands 48 Table 2 Communications Commands 49 9105 9107 1 1 1 Before You Start Before You Start Symbols Used Table 1 lists the symbols used on the instrument or in this manual and the meaning of each symbol Table 1 International Electrical Symbols Symbol Description AC Alternating Current No AC DC Battery A MA Complies with European Union directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Manual Important Information off On 1 Before You Start 1 2 1 2 1 Symbol Description Canadian Standards Association c Us OVERVOLTAGE Installation CATEGORY Pollution Degree 2 per IECTOTO 1 refers to the lev
2. 51 10 1 2 Comparison 51 10 1 3 Calibration of Multiple 52 10 2 Dry Well Characteristics RAS 52 10 2 1 Vertical 53 10 2 2 Stabilization and Accuracy 53 11 Calibration Procedure 55 11 1 Calibration 55 11 1 1 Calibration Equipment 55 Calibr lion r ee 55 12 Maintenance 57 13 59 13 1 59 13 2 Ommi 252225500053 ee A Ohne wun nee 60 18 21 SO tr ho PT oae ba n e C OR e eed 60 13 2 2 Low Voltage Directive Safety 60 133 Wiring 4 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 22252555526 4 d pe quas j RII ELT T LT 15 ener ai ee Gare 16 Well Soe ene one Saeed E 17 Well Insulator Top
3. 7 6 3 1 Constant Temperature Block 2 ee 17 6 3 2 Probe Sleeves and Tongs 17 Well Insulator 9107only 18 General 21 Calibrator 2 Sasa 8 21 Switching to 230 V Operation 9107 only 21 Setting the Temperature 22 Calibrating Probes 22 74 8 Controller 23 8 1 82 8 3 84 8 5 8 6 87 8 8 8 9 8 10 8 11 Well Temperature 23 Reset Out aenea 23 Temperature 58 25 831 Programmable 5 25 832 eva soaps RR SR Ya nr age ECCE 26 8 33 Temperature Scale Units 26 oM 26 84 1 Scan 7 84525 n Tc T 2 Display Hold 27 5 1 Hold Temperature Display 2 28 Mode Selling cos ees Shuang AUS RAT SETS 28 8 5 3 eee 29 854 2 2 2 2 2 2 29 8 5 5 Switch Test
4. SET UP Display Temperature lt Program Menu SET SET Y pen Number of Setpoints mr H Reset Cutout 1 SET Cutout Active Sm Gase Select Setpoint Select Setpoint T e EXIT L Select Y Y SECONDARY FUNCTIONS Sook EXIT 1 Adjust Setpoint i L SH SET Y Program Function Mode f e ET HH Units EXIT Display Power n SET SET Y Y Y H Program Control r EXIT C Scan On Off lt EXIT Set Proportional Band SET str Y Y Scan Rate le EXIT Set Cutout Temp I SET sr Y Y EXIT Display Hold Mode 4 exit Configuration Menu SET cH Y 1 Scan Hold lt 1 SET tke 1 i A EXIT EXIT EXIT i EXIT EXIT 1 Operating gt Serial wor 1 488 gt 5 Parameters Interface DOWN Interface lt down Menu Menu Bis 1 Menu a SET SET SET SET X 5 Y Y Y Y BAUD Devi DOC Mes SET EXT EXT SET EXT SET mr SET EXT Adjust Adj Device BAUD Rate Address 1 SE BUT SET EXIT Sm Sm Y E Cutout Sample in ERE 2 Period IFEE 488 b sr L pem si SET Bur Option Installed EXT Dee Loss inu MES gt Adj Cutout Adj Sample a Reset Mode Period SET EXIT SET EXIT SET EXIT SET EXIT Y
5. 29 Ramp and Soak Program 31 8 6 1 3l 8 6 2 SBEpOllls user a Rc pue CREER WB A eee Back e eere ee RUN 32 8 6 3 32 8 6 4 Program Function 33 865 Program cec Ro e LA EDU RS 33 Secondary ue a dicio o e dan oae Seo boe s b d 34 Heating 34 Proportional Band 34 MER eb ae 36 Controller Configuration eee 37 8 11 1 Probe Parameters 37 HTTP PP 37 LS 38 LE NB cn 38 LEN PTT 38 8 11 2 Operating Parameters 38 8 11 2 1 Temperature Scale 38 8 11 2 2Cut out Reset Mode 2 eee eee 38 8 11 2 3 Sodk Stability week Hae 39 8 11 3 Serial Interface 5 39 cen a eek Aas Chat ee eee as 39 8 11 32 Sample ea OS 40 8 11 3 3 Duplex Mode cad geek C bx a
6. a i 5 ES gt SET Bur res EXT Adj Duj Cem L s t SET EXIT SET SET EXIT Y EXIT SET an gt SET gt Adjust linefeed SET EXIT SET EXIT Figure 6 Controller Function Flowchart Hart Scientific 8 3 8 3 1 9105 9107 8 Controller Operation When the cut out is active and the cut out mode is set to manual reset then the display will flash cut out until the user resets the cut out To access the reset cut out function press the SET button SET Access cut out reset function The display will indicate the reset function P i Cut out reset function Press SET once more to reset the cut out Reset cut out This will also switch the display to the set temperature function To return to displaying the temperature press the EXIT button If the cut out is still in the over temperature fault condition the display will continue to flash cut out The well temperature must drop a few degrees below the cut out set point be fore the cut out can be reset Temperature Set point The temperature set point can be set to any value within the range and with res olution as given in the specifications Be careful not to exceed the safe upper temperature limit of any device inserted into the well The safety cut out should be properly adjusted to help prevent this occurrence Setting the t
7. 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 Hart Scientific 9105 9107 4 Safety Guidelines Safety Guidelines Operate the instrument in room temperatures between 5 50 41 122 F Allow sufficient air circulation by leaving at least 6 inches of space between the instrument and nearby objects DO NOT place under a cabinet or other structure Allow for overhead clearance The dry well 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 DO NOT use fluids to clean out the well The instrument can generate extreme temperatures Precautions must be taken to prevent personal injury or damage to objects Probes may be ex tremely hot or cold when r
8. 50 60 Hz 230 VAC 1 10 350 watts Ambient Temperature 5 50 C 40 120 F Operating Range 25 C to 140 45 C to 140 C 32 C to 284 F 49 F to 285 F at 25 C 77 F at 25 C 77 F Resolution 0 01 C or 0 01 F Accuracy 0 2 C 0 36 F Drilled Wells Center Well 0 1 C 0 18 F with 6 35 mm 1 4 probe Uniformity 0 05 C 0 09 F Drilled Wells Center Well 0 2 C 0 36 F with 6 35 1 4 mm probe Control Stability 0 02 C 0 04 F Controller Hybrid analog digital controller with data retention Test Wells One 3 4 dia x 6 deep two 1 4 dia x 6 one 3 16 dia x 6 deep and one 1 8 x 6 deep Size 12 5 H x 8 W x 10 5 D Weight 30 Ib including well sleeve Safety OVERVOLTAGE Installation CATEGORY Pollution Degree 2 per 1010 1 Fuse Rating 115 V 4 A slow blow 250 V 230 V 3 15 A slow blow 250 V Environmental Conditions Although these instruments have been designed for optimum durability and trouble free operation they 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 Maintenance Section of this manual The instrument operates safely under the following conditions 3 Specifications and Environmental Conditions 3 3 e temperature range 5 50 C 41 122 F e ambient relative humidity 15 5096
9. 6 4 Standard Insert Sizes Model Number 2168 Blank insert 2169 Xa EG insert 2170 A4 dd insert 2171 insert 2172 3 dd insert 2173 Aie insert 2174 S d insert 2175 3 insert 2176 insert 2177 insert 2178 insert 2179 insert Well Insulator 9107only The 9107 includes a well insulator made of white polymer foam that fits into the opening above the block see Figure 5 The well insulator has three purposes 1 Insulate the top of the block to minimize the vertical temperature gradi ent in the block 2 Insulate the top of the block to prevent excessive heat from flowing into or out of the block which may prevent it from reaching its minimum or maximum temperatures 3 Shield the top of the block from open air thus reducing the potential for excessive water condensation on the block Excessive water on the block can cause corrosion over a long period of time Water condensa tion that freezes expands and can damage the block For these reasons the 9107 must always have the well insulator installed when it is operated with well temperatures below 25 C The well insulator fits snugly into the circular cavity just above the block For best results do not push the well insulator all the way down into the cavity Instead leave the top of the well Hart Scientific 9105 9107 6 Parts and Controls insulator flush with the top of the cavity The well insulator has a slot thr
10. 8 6 2 Set points The next parameters are the program set points i 25 0 First set point Press SET to save the new set point value The other set points can also be set in the same manner Once the set points are programmed as desired press EXIT to continue Continue to next menu function 8 6 3 Program Soak Time The next parameter in the program menu is the soak time This is the time in minutes for which each of the program set points will be maintained after set tling before proceeding to the next set point The duration is counted from the time the temperature settles to within a specified stability The stability require ment can be set in the parameter menu as explained in Section 8 11 2 3 The default is 0 1 C 32 Hart Scientific 8 6 4 8 6 5 9105 9107 8 Controller Operation Press SET to continue Save new setting Program Function Mode The next parameter is the program function or cycle mode There are four pos sible modes which determine whether the program will scan up from set point 1 to n only or both up and down from set point n to 1 and also whether the program will stop after one cycle or repeat the cycle indefinitely The table be low shows the action of each of the four program mode settings Function Action 1 up stop 2 up down stop 3 up repeat 4 up down repeat New mode Press SET to continue SET Save new se
11. 8 Controller Operation To accept the new cut out set point press SET SET Accept cut out set point The next function is the configuration menu Press EXIT to resume display ing the well temperature Controller Configuration The controller has a number of configuration and operating options and calibra tion parameters that are programmable via the front panel These are accessed from the secondary menu after the cut out set point function by pressing SET There 5 sets of configuration parameters probe parameters oper ating parameters serial interface parameters IEEE 488 interface parameters and controller calibration parameters The menus are selected using the UP and DOWN keys and then pressing SET Probe Parameters The probe parameter menu is indicated by Probe parameters menu Press SET to enter the menu The probe parameters menu contains the pa rameters R and ALPHA DELTA and BETA which characterize the resis tance temperature relationship of the platinum control probe These parameters may be adjusted to improve the accuracy of the calibrator This procedure is ex plained in detail in Section 10 The probe parameters are accessed by pressing SET after the name of the parameter is displayed The value of the parameter may be changed using the UP and DOWN buttons After the desired value is reached press SET to set the parameter to the new value
12. 999 9 10 999 9 Hart Scientific Communications Commands Continued 9 Digital Communication Interface Command Command Returned Acceptable Command Description Format Example Returned Example Values These commands are only used for factory testing Read software cutout mode sco sco sco ON or OFF sco ON Set software cutout mode sco ON OF F ON or OFF Set software cutout mode on sco ON sco on Set software cutout mode off sco OFLF sco off Miscellaneous not on menus Read firmware version number ver sion ver ver 9999 9 99 ver 9105 3 54 Read structure of all commands help h list of commands Legend Note Optional Command data Alternate characters or data 0 Returns either information n Numeric data supplied by user may be entered in decimal or exponential notation 9 Numeric data returned to user x Character data returned to user 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 9105 9107 10 10 1 10 1 1 10 Test Probe Calibration 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 calibration allow the block to cool before switching the
13. EOS It can be set to car riage return only Cr linefeed only LF or carriage return and linefeed Regardless of the option selected the instrument interprets either a carriage re turn or linefeed as a command termination during reception 8 Controller Operation 8 11 5 8 11 5 1 8 11 5 2 8 11 5 3 Calibration Parameters The user has access to a number of the instrument calibration constants namely CTO BO and BG These values set at the factory and must not be altered The correct values are important to the accuracy and proper and safe operation of the calibrator Access to these parameters is available to the user only so that in the event that the controller s 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 calibration constants from the factory set values The correct setting of these parameters is important to the safety and proper operation of the calibrator The calibration parameters menu is indicated by CAL Calibration parameters menu Press SET five times to enter the menu Parameter sets the calibration of the over temperature cut out This is not adjustable by software but is adjusted with an internal potentiometer This pa rameter should read between 150 and 170 BO and BG These parameters calibrate the accuracy of the te
14. Pressing EXIT will cause the parameter to be skipped ignoring any changes that may have been made This probe parameter refers to the resistance of the control probe at 0 C The value of this parameter is set at the factory for best instrument accuracy 8 Controller Operation 8 11 1 2 8 11 1 3 8 11 1 4 8 11 2 8 11 2 8 11 2 2 ALPHA This probe parameter refers to the average sensitivity of the probe between 0 and 100 C The value of this parameter is set at the factory for best instrument accuracy DELTA This parameter relates to the second order nonlinearity of the sensor The value 18 set at the factory for best instrument accuracy BETA This parameter relates to the higher order nonlinearity of the sensor below 0 C The value is set at the factory for best instrument accuracy Operating Parameters The operating parameters menu is indicated by Operating parameters menu Press to enter the menu The operating parameters menu contains units scale selection set and cut out reset mode setting Temperature Scale Units The temperature scale units of the controller may be set by the user to degrees Celsius C or Fahrenheit F The units will be used in displaying the well temperature set point proportional band and cut out set point The temperature scale units selection is the first function in the operating pa rameters menu Press SET to ac
15. The mode determines how the cut out is reset which allows the instru ment to heat up again When in automatic mode the cut out will reset itself as soon as the temperature is lowered below the cut out set point With manual re set mode the cut out must be reset by the operator after the temperature falls below the set point 8 Controller Operation
16. block with the standard ther mometer If the measured errors are all within acceptable limits then no further action is required and following the remainder of this procedure is not necessary If the accuracy needs to be improved continue with Step 2 2 the set point to 0 C and allow adequate time for the block to reach this temperature and stabilize Adjust the RO calibration parameter see Section 8 11 1 1 to make the block temperature as measured with the standard thermometer match the set point The approximate ratio be tween a change in RO and a change in temperature at 0 C is about 0 4 11 Calibration Procedure to 1 For example if the block temperature is high by 0 1 C at 0 C then decrease RO by 0 04 Set the set point to 100 C and allow adequate time for the block to reach this temperature and stabilize Adjust the ALPHA calibration pa rameter see Section 8 11 1 2 to make the block temperature as mea sured with the standard thermometer match the set point The approximate ratio between a change in ALPHA and a change in tem perature at 100 C is about 0 00004 to 1 For example if the block tem perature is high by 0 1 C at 100 C then decrease ALPHA by 0 000004 Set the set point to 140 C and allow adequate time for the block to reach this temperature and stabilize Adjust the DELTA calibration pa rameter see Section 8 11 1 3 to make the block temperature as mea sured with the standard thermometer match the
17. dry well calibrator should be handled with care Avoid knocking or dropping the calibrator For dry wells with removable probe sleeves the sleeves can become cov ered with dust and carbon material If the buildup becomes too thick it could cause the sleeves to become jammed in the wells Avoid this build up by periodically buffing the sleeves clean If a sleeve should be dropped examine the sleeve for deformities before inserting it in the well If there is any chance of jamming the sleeve in the well file or grind off the protuberance DO NOT slam the probe stems into the well 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 re sponsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material If the mains supply cord becomes damaged replace it with a cord with the appropriate gauge wire for the current of the instrument If there are any questions call Hart Scientific Customer Service for more informa tion Before using any cleaning or decontamination method except those 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 If the instrument is used in a manner not in accordance with the equip ment design the operation of the dry well may be impaired or safety haz ards may arise 12 Ma
18. e pressure 75kPa 106kPa e mains voltage within 10 of nominal e vibrations in the calibration environment should be minimized e altitude less than 2 000 meters Warranty Hart Scientific Inc Hart warrants this product to be free from defects in ma terial 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 Hart for authorization Hart assumes NO risk for in transit damage For service or assistance please contact a Hart Scientific Authorized Customer Service Center see Section 1 3
19. made to the set point will be ignored SET Accept new set point value 8 3 3 Temperature Scale Units The temperature scale units of the controller maybe set by the user to degrees Celsius C or Fahrenheit F The units are used in displaying the well tem perature set point and proportional band Press SET after adjusting the set point value to change display units 8 4 Scan The scan rate can be set and enabled so that when the set point is changed the dry well will heat or cool at a specified rate degrees per minute until it 26 Hart Scientific 8 4 1 8 4 2 8 5 9105 9107 8 Controller Operation reaches the new set point With the scan disabled the dry well will heat or cool at the maximum possible rate Scan Control The scan is controlled with the scan on off function that appears in the main menu after the set point function i Scan function off Press SET to accept the present setting and continue 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 100 C min The maximum scan rate however is actually limited by the natural heating or cooling rate of the instrument This is often less than 100 C min 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 select
20. power off For information on automating your testing contact Hart Scientific Inc Comparison Methods Direct Calibration Direct calibration involves testing a probe directly against the dry well s tem perature display The method provides the advantage of being quick and easy Insert the probe to be calibrated into the well of the dry well 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 inserted 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 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 0 1 C for best results A Caution Never introduce any foreign material into the probe hole of the 10 1 2 9105 9107 insert Fluids etc can leak into the calibrator causing damage to the cal ibrator or binding and damage to your probe Comparison Calibration Comparison calibration involves testing a probe against a similar reference probe The advantage to this method is that better accuracy can be achieved since errors due to dry well inaccuracy stem effect and drift can be reduced After inserting
21. temperature For best results insert probes the full depth of well Stabilization and Accuracy The stabilization time of the dry well calibrator will depend on the conditions and temperatures involved Typically the dry well will be stable to 0 1 C within 5 minutes of reaching the set point temperature as indicated by the dis play Ultimate stability will be achieved 10 to 20 minutes after reaching the set temperature Inserting a cold probe into a well will require another period of stabilization de pending on the magnitude of the disturbance and the required accuracy For ex ample inserting a 14 inch diameter room probe at temperature into a sleeve at 300 C will take approximately 5 minutes to be within 0 1 C of its set point and will take 10 minutes to achieve maximum stability Decreasing the time required for the calibration process can be accomplished by knowing how soon to make the measurement It is recommended that typi cal measurements be made at the desired temperatures with the desired test probes to establish these times 11 1 1 1 1 11 1 2 9105 9107 11 Calibration Procedure Calibration Procedure Calibration Procedure Calibration of this instrument should be performed at regularly scheduled inter vals by qualified authorized personnel in accordance with your company s pol icy Following is the recommended procedure for calibrating this instrument Calibration Equipment Calibration requires
22. the secondary menu Press SET and EXIT simultaneously and release The heater power will be displayed as a percentage of full power 20 000 Well temperature SET ev Access heater power in secondary menu Negative numbers indicate the well is being cooled 100 means the well is being cooled at maximum power 0 means the well requires neither heating nor cooling 100 means the well is being heated at maximum power To exit out of the secondary menu press EXIT To continue on to the propor tional band setting function press SET 8 9 Proportional Band In a proportional controller such as this the heater output power is proportional to the well temperature over a limited range of temperatures around the set point This range of temperature is called the proportional band At the bot tom of the proportional band the heating is 100 At the top of the proportional 34 Hart Scientific 9105 9107 8 Controller Operation band the cooling is 10096 Thus as the temperature rises the heater power is re duced 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 See Figure 8 on page 35 If the band is too wide the well temperature will deviate excessively from the set point due to varying external conditions Th
23. tween the two wells 7 You may now compare the averaged measurement of the probe under test with the averaged measurement of the reference probe For best results repeat the test several times at the same temperature and at dif ferent temperatures This method can be used with different types of probes but the user must deter mine the uncertainty of the measurement Calibration of Multiple Probes Fully loading the calibrator with probes increases the time required for the tem perature to stabilize after inserting the probes Be sure that the temperature has stabilized before starting the calibration Multiple probes may be calibrated simultaneously using either the direct or comparison calibration method Stem effect will cause less error in the compar ison calibration method than with the direct calibration method Dry Well Characteristics Understanding the thermal characteristics of the dry well calibrator can help you achieve the best accuracy and efficiency possible Hart Scientific 10 2 1 10 2 2 9105 9107 10 Test Probe Calibration Vertical Gradient 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 dry well and minimize vertical temperature gradients How ever actual heat losses will vary depending on the number and types of probes inserted into the calibrator and the block
24. 3 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 Hart Scientific 13 Troubleshooting Wiring Diagrams 13 3 90 6 NO 33H01 VH3dW3 l AV 1dSIG NOISHHA OVA 062 NOISH3A OVA S LL VS 35 5 W31SAS H3ddOO 15 SI SHIM TIY Li GSUDFTSIHM 49078 80 5016 OINLHM T wA X 18 980 1HM OINIHM IS ISALHM HOMES M18 980 1HM En TBADNEILHM Ed NYS ow TBADISILHM NAR aal TEAM Wet 1HWAMODS NH NI OV THIO 9 N WLISIG f is 13 3univsuadwal E 1 JH Figure 10 9105 Wiring Diagram 9105 9107 13 Troubleshooting L do awos as
25. 5 SCIENTIFIC A Fluke Company 9105 9107 Dry well Calibrator User s Guide Rev 242801 Copyright 1991 2002 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 Email support hartscientific com Rev 2A2801 Table of Contents 1 Before You 604 wee omn gt iioii erik pei 1 1 2 Safety 2 2 EDITUM 4 13 Hart Scientific Authorized Service Centers 5 Introduction Specifications and Environmental Conditions 9 Rosa SUR DR C Ea E CR GRO d e 9 32 Environmental Conditions 9 33 WONG i Sabin bade 10 Safety E E T T ot CIT E ROT T mt cmt 5 1 5 2 5 3 54 EET TIT E CO ROTE TT EET 13 teh Tied ame ES cR 13 l CPP 13 Parts and 5 15 6 1 6 2 6 3 64 7 1 7 2 7 3 Renn Panella ss avo ss cus ees 15 TETTE TOT RTT IT 16 Constant Temperature Block
26. ES 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 Hart Scientific 1 Before You Start WARNING THIS AREA IS HOT Figure 1 View 9105 9107 3 1 Before You Start 1 2 2 DO NOT REMOVE INSERTS AT HIGH TEMPERATURES Inserts will be the same temperature as the display temperature Use extreme care when removing hot inserts DO NOT operate this unit without a properly grounded properly polar ized 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 INJURY OR DEATH may result if personnel fail to observe safety pre cautions Before working inside the equipment turn power off and dis connect power cord Always replace the fuse with one of the same rating voltage and type Overhead clearance is required DO NOT place unit 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 manual 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 TEMPERATURES for extended periods of time requires caution Completely unattended high temperature operation is not recom mended for sa
27. a standard thermometer that is adequately accurate and fits properly into one of the reference holes in the block Recommended equipment includes a laboratory grade PRT with a length of 230 to 300 mm 9 to 12 inches and a diameter of 4 76 or 6 35 mm 3 16 or 1 4 inches The combined accuracy of the PRT and the readout which used to display the temperature should be 0 025 C or better Calibration The accuracy of the instrument over the full range is determined by the values of the calibration parameters RO ALPHA DELTA and BETA The calibration procedure involves measuring the error between the instrument and the refer ence thermometer at several temperature throughout the range and adjusting the calibration parameters as necessary to reduce the errors to within acceptable limits The stated accuracy of the instrument can be found in the specification table in Section 3 1 Because of the way the calibration parameters affect the temperature the simplest way to proceed is to measure the errors at 0 C 100 C 140 C and 25 C and adjust RO ALPHA DELTA and BETA at each point re spectively Follow these steps 1 If as found data is required then first measure the error at various temperatures throughout the range such as 25 0 25 50 75 100 and 140 C The errors are measured by setting the controller to the desired temperature allowing the block to reach the temperature and stabilize and reading the actual temperature of the
28. air through the instrument and the controller 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 display will begin to show the well temperature and the well heater will start operating to bring the temperature of the well to the set point temperature Power Plug the dry well power cord into a mains outlet of the proper voltage fre quency and current capability Typically this will be 115 VAC 410 50 60 Hz 230 VAC 10 50 60 Hz Turn the dry well on using the rear panel 5 Quick Start 5 4 POWER switch dry well will turn on and begin to heat to the previously programmed temperature set point The front panel LED display will indicate the actual dry well temperature 9107 1s field switchable between 115 V and 230 V Refer to Section 7 2 Switching to 230 V Operation for information on switching the voltage Setting the Temperature Section 8 3 explains in detail how to set the temperature set point on the cali brator using the front panel keys The procedure is summarized here 1 SET twice to access the set point value 2 Press UP or DOWN to change the set point value 3 Press SET to program in the new set point 4 Press EXIT to return to the temperature display When the set point temperature is changed the controller will switch the we
29. al Port This D 9 connector is for interfacing the calibrator to a computer or terminal with serial RS 232 communications Display Hold The two terminals may be used to wire a switch or cut out to the calibrator to trigger the instrument to freeze the displayed well temperature Fuse Holders At the rear of the calibrator are two user accessable fuse holders 6 2 Front Panel See Figure 3 on page 16 Controller Display The digital display is an important part of the temperature controller because it not only displays set and actual temperatures but also vari ous calibrator functions settings and constants The display shows tempera tures 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 hundredth of a degree Celsius functions of the buttons are as follows SET Used to display the next parameter in the menu and to set parameters to the displayed value DOWN Used to decrement the displayed value of parameters Figure 3 Front Panel 16 Hart Scientific 6 3 6 3 1 6 3 2 9105 9107 6 Parts and Controls UP Used to increm
30. alue SET Accept the new proportional band setting 8 10 Cut out As a protection against software or hardware fault or user error the calibrator is equipped with an adjustable cut out device that will shut off power to the heater if the well temperature exceeds a set value This protects the instrument and probes from excessive temperatures The cut out temperature is programmable by the operator from the front panel of the controller If the cut out is activated because of excessive well temperature then power to the heater will be shut off and the instrument will cool The well will cool until it reaches a few degrees below the cut out set point temperature At this point the action of the cut out is determined by the setting of the cut out mode pa rameter The cut out has two modes automatic reset or manual reset If the mode is set to automatic then the cut out will automatically reset itself when the temperature falls below the reset temperature allowing the well to heat up again If the mode is set to manual then the heater will remain disabled until the user manually resets the cut out The cut out set point may be accessed 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 cut out set point T Access heater power in secondary menu SET Access cut out set point 36 Hart Scientific 8 11 8 11 1 8 11 1 1 9105 9107
31. ate 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 BAUGd Press SET to choose to set the BAUD rate The current BAUD rate value is displayed The serial commu nications BAUD rate may be programmed to 300 600 1200 or 2400 BAUD The BAUD rate is pre programmed to 1200 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 5 PLE 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 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 immedi ately echoed o
32. c BON 40 Linef ed 40 Parameters ones Le eae wees ETE ae 4 8 1 4 1 IEEE 488 Address 4 Termilidtioh xen Rios 4l 8 11 5 Calibration Parameters RR III 4 sro 42 8 1 5 2 BO nd BG i esr ee erc Rao E Y ye 42 947 5 290 22 55 a ae potu ha udi pets 42 9 Digital Communication 43 91 Serial 43 PIT 43 LESE D MITIS 43 0121 BAUD i cre e Re URS Cre aem OR eH 44 9 122 Sample eer eT e E XR bd M 92 3 Duplex Mode ep metre eC eee ree M 91 244 linfeed eMe ete bold 4 9 1 3 Serial Operation 25224 DUE rr teer EE 45 92 488 45 92 58 42 5 P 45 9 2 1 1 1 488 Interface Address 45 9 22 IEEEABB Operation toe RARE RS SC 45 9 3 Interface 46 10 Test Probe Calibration 5 101 Comparison 005 51 10 1 1 Direct
33. cept the new selection and resume displaying the well temperature Cut out Reset Mode The cut out reset mode determines whether the cut out resets automatically when the well temperature drops to a safe value or must be manually reset by the operator Hart Scientific 8 11 2 3 8 11 3 8 11 3 1 9105 9107 8 Controller Operation The parameter is indicated by Ctor 5 Cut out reset mode parameter Press SET to access the parameter setting Normally the cut out is set for au tomatic mode Cut out set for manual reset Soak Stability The soak stability controls the required stability of the well temperature for the soak time Section 8 6 3 The stability is in degrees Celsius The default is 0 1 C This value can be changed in the parameter menu Serial Interface Parameters The serial RS 232 interface parameters menu is indicated by SErcIRL Serial RS 232 interface parameters menu The serial interface parameters menu contains parameters which determine the operation of the serial interface These controls only apply to instruments fitted with the serial interface The parameters in the menu are BAUD rate sample period duplex mode and linefeed BAUD Rute 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 Serial BAUD rate parameter Press SET to choose to set
34. e 9 999 be 0 342 Set BETA calibration parameter to n be ta n be 0 342 100 0 to 100 0 Operating Parameters Menu Set temperature units v nits c f CorF Set temperature units to Celsius v nits c uzt Set temperature units to Fahrenheit u f Read cutout mode cm ode an cm AUTO Set cutout mode cm ode r eset a uto RESET or AUTO Set cutout to be reset manually cmLode rLeset cm r Set cutout to be reset automatically cm ode a uto cm a Read approach setting ap proach ap 9 ap 5 Set approach setting to n degrees ap proach n ap 15 0 to 20 C Read stability 5 5 15 9 9 50 5 Set soak stability to n degrees ts n ts 1 01 to 4 99 C Serial Interface Menu Read serial sample setting sa mple sa so 9 sa 1 Set serial sampling setting to seconds sa mple n sa 0 0 to 4000 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 If eed on of f ON or OFF Set serial linefeed mode to on If eed on Set serial linefeed mode to off IfLeed of F lf of Calibration Menu WARNING changing the following calibration values may change the accuracy of the instrument Read BO calibration parameter 0 0 b0 9 b0 0 Set BO calibration parameter to n b0 n b0 0 999 9 10 999 9 Read B6 calibration parameter bg bg hg 999 99 hg 15625 Set BG calibration parameter to n bg n bg 156 25
35. e 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 Serial duplex mode parameter Linefeed The final parameter in the serial interface menu is the linefeed mode This pa rameter enables on or disables off transmission of a linefeed character LF ASCII 10 after transmission of any carriage return The linefeed parameter is indicated by Hart Scientific 8 11 4 8 11 4 1 8 11 4 2 9105 9107 8 Controller Operation eer err TUE IEEE 488 Parameters The calibrator may optionally be fitted with an IEEE 488 GPIB interface In this case the user may set the interface address within the IEEE 488 parameter menu This menu does not appear on instruments not fitted with the interface The menu is indicated by IEEE 488 parameters menu Press SET to enter the menu IEEE 488 Address The IEEE 488 interface must be configured to use the same address as the ex ternal communicating device The address is indicated by RddrESS i 488 interface address Adjust the value with UP or DOWN and then use SET to set the address to the displayed value Rdd 15 i New IEEE 488 interface address Termination The next paramater in the menu is the transmission termination character selec tion The parameter is indicated on the display by
36. ed units Press SET to accept the new scan rate and continue SET Accept scan rate Temperature Display Hold The instrument has a display hold function which allows action of an external switch to freeze the displayed temperature and stop the set point from scan ning This is useful for testing thermal switches and cut outs This section ex plains the functions available for operating the temperature hold feature An example follows showing how to set up and use the hold feature to test a switch 8 Controller Operation 8 5 1 Hold Temperature Display When the hold feature is enabled you can easily switch the display between the normal temperature display and the hold temperature display by simply press ing the UP or DOWN buttons The hold temperature display shows the hold temperature on the right and the switch status on the left For the status c means the switch is closed and means the switch is open The status flashes when the switch is in its active position opposite the normal position The hold temperature shows what the temperature of the well was when the switch changed from its normal position to its active position While the switch is in the normal position the hold temperature will follow the well temperature Operation of the hold temperature display is outlined below Note that the hold function display is not accessible if the function mode is set to OFF See Section 8 5 2 To return
37. el of Impulse Withstand Voltage protection provided Equipment of OVERVOLTAGE CATE GORY is energy consuming equipment to be supplied from the fixed installation Exam ples include household office and laboratory appliances CTIC Australian EMC Safety Information CAT II Use the instrument only as specified in this manual Otherwise the protection provided by the instrument may be impaired Refer to the safety information below and throughout the manual 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 A Warnings To avoid possible electric shock or personal injury follow these guidelines e BURN HAZARD Do Not touch the well access surface of the unit Refer to Figure 1 on page 3 e The temperature of the well access 1 will be the same as the actual tem perature shown on the display 2 e g if the unit is set at 600 C and the display reads 600 C the well is at 600 C e The top sheet metal 3 of the dry well may exhibit extreme temperatures for areas close to the well access e 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 TEMPERATUR
38. emoved 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 Use only a grounded AC mains supply of the appropriate voltage to power the instrument The Model 9105 dry well requires 3 amps SB at 115 VAC 10 50 60 Hz 1 6 amps T at 230 VAC 10 The Model 9107 dry well requires 4 amps SB at 115 VAC 10 50 60 Hz 3 15 amps T at 230 VAC 10 Before initial use after transport and anytime the dry well has not been energized for more than 10 days the instrument needs to be energized for period of 1 2 hours before it can be assumed to meet all of the safety requirements of the IEC 1010 1 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 If a mains supply power fluctuation occurs immediately turn off the in strument P
39. emperature 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 number of the set point memory currently being used is shown at the left on the display followed by the current set point value 8 Controller Operation To change the set point memory press UP or DOWN 3 10 8 New set point memory 3 10 0 C Press SET to accept the new selection and access the set point value SET Accept selected set point memory 8 3 2 Set point Value The set point value may be adjusted after selecting the set point memory and pressing SET The set point value is displayed with the units C or F at the left Los C210 00 Setpoint 3 Valeo If the set point value need not be changed then press EXIT to resume dis playing the well temperature Press UP or DOWN to adjust the set point value 12 08 New set point value When the desired set point value is reached press SET to accept the new value and access the temperature scale units selection If EXIT is pressed in stead then any changes
40. ent the displayed value EXIT Used to exit from a menu When EXIT is pressed any changes made to the displayed value will be ignored Control Indicator The Control Indicator is a two color light emitting diode This indicator lets the user visually see the ratio of heating to cooling When the indicator is constant red the well is heating and when it is constant green the well is cooling When the indicator is flashing then the temperature is being held constant Constant Temperature Block Assembly Constant Temperature Block The block Figure 4 is made of aluminum and provides a relatively constant and accurate temperature environment in which the sensors that are to be cali brated are inserted The 75 inch diameter hole in the center of the block may be used for sensors of that size or sleeved down with various sized probe sleeves The block also has 4 smaller holes of various sizes Attached to the block are Peltier thermoelectric modules which heat or cool the block to main tain a constant temperature A high quality platinum RTD is imbedded in the block to sense the temperature and provide feedback to the temperature control ler 3 4 0 D Muminum Insert 3 16 Well 1 4 Well 1 4 Well 1 8 Well Figure 4 Well and Insert Probe Sleeves and Tongs Probe sleeves of various internal hole sizes are available to allow the user s probe to fit snugly into the well whatever the diameter of the probe 6 Parts and Controls
41. etail in the next section to test the switch Measure ments can be made by observing the display or preferably by collecting data using a printer or computer connected to the RS 232 port To set up the test do the following steps 1 Connect the switch wires to the terminals on the back of the dry well and place the switch in the well 2 Enable set point scanning by setting the scan to ON in the primary menu see Section 8 4 1 3 Set the scan rate to a low value say 1 0 C min see Section 8 4 2 If the scan rate is too high you may lose accuracy because of transient temperature gradients If the scan rate is too low the duration of the test may be longer than is necessary You may need to experiment to find the best scan rate 4 Set the hold mode to automatic see Section 8 5 2 5 Set the scan hold to see Section 8 5 3 6 Set the number of program set points to 2 in the program menu see Section 8 6 1 7 Set the first program set point to a value below the expected lower switch temperature say 40 C in the program menu see Section 8 6 2 8 Set the second program set point to a value above the expected upper switch temperature say 90 C 9 Set the program soak time to allow enough time to collect a number of data points say 2 minutes see Section 8 6 3 10 Set the program function to mode 4 so that the instrument will cycle be tween the 2 set points repeatedly See Section 8 6 4 11 Star
42. ey switches and LED display the user may monitor the well temperature set the temperature set point in degrees C or F monitor the heater output power adjust the control ler proportional band set the cut out set point and program the probe calibra tion parameters operating parameters serial 488 interface configuration and controller calibration parameters Operation of the functions are summarized in Figure 6 on page 24 In the following discussion a solid box around the word SET UP EXIT or DOWN 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 2008 Well temperature in degrees Celsius The temperature display function may be accessed from other functions by pressing the EXIT button Reset Cut out If the over temperature cut out has been triggered then the temperature display will alternately flash cut out Indicates cut out condition The message will continue to flash until the temperature is reduced and the cut out is reset The cut out has two modes automatic reset and manual reset See Section 8 11 2 2
43. fety reasons Before initial use after transport and anytime the dry well has not been energized for more than 10 days the calibrator must be energized for a dry out period of 1 to 2 hours before it can be assumed to meet all of the safety requirements of the IEC1010 1 Follow all safety guidelines listed in the user s manual CALIBRATION EQUIPMENT should only be used by TRAINED PER SONNEL Cautions To avoid possible damage to the instrument follow these guidelines e Components and heater lifetime can be shortened by continuous high temperature operation Hart Scientific 9105 9107 1 3 1 Before You Start Components and heater lifetime can be shortened by continuous high temperature operation e Most probes have handle temperature limits Be sure that the probe handle temperature limit is not exceeded in the air above the unit 9107 only Always use the well insulator see Section 5 4 Allow for test probe expansion inside the well as the dry well heats DO NOT use fluids to clean out the well e Never introduce any foreign material into the probe hole of the insert Fluids etc can 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 slam the probe stems in to the well This type of action can cause a shoc
44. grammable set points pn pn pn 9 pn 2 Set number of programmable set points ton pn 4 1108 Read programmable set point number n psn ps3 9999 99 Cor F psl 50 00 Set programmable set point number nto psn n ps3 50 1 to 8 Instrument Range Read program set point soak time pt pt ti 999 1i 5 Set program set point soak time to n minutes pt 5 0 to 500 Read program control mode pe pe prog OFF or ON prog OFF Set program control mode pc g o s top c ont 60 or STOP or CONT Start program pc gfo pc g Stop program pc s top pes Continue program pce dont Read program function pf pf pf 9 pf 3 9105 9107 9 Digital Communication Interface Communications Commands Continued Command Command Returned Acceptable Command Description Format Example Returned Example Values Set program function to n pf n pf 2 1104 Configuration Menu Probe Menu Read RO calibration parameter 101 r r0 999 999 r0 100 578 Set RO calibration parameter to n r 0 n r 100 324 98 0 to 104 9 Read ALPHA calibration parameter al pha al al 9 9999999 al 0 0038573 Set ALPHA calibration parameter to n al pha n al 0 0038433 00370 to 00399 Read DELTA calibration parameter de lta de de 9 99999 de 1 46126 Set DELTA calibration parameter to n de lta n de 1 45 0 0 to 2 9 Read BETA calibration parameter be ta be b
45. h the DB 9 connector at IBM PC and Compatibles the back of the instrument Fig ure 9 shows the pin out of this Computer DTE connector and suggested cable Connector Connector wiring To eliminate noise the serial cable should be shielded ib e 2RxD with low resistance between the 300 4 z 4 DTR connector DB9 and the shield 5 GND 5 5 GND 6NC 6 DSR 7RIS 7 RTS Setup 805 9NC 9NC Before operation the serial in terface must first be set up by programming the BAUD rate Instrument Computer DTE and other configuration parame Connector Connector DB 9 Pin DB 25 Pin ters These parameters are pro grammed within the serial 2RxD o 31xD e 3RxD interface menu The serial in 4NC 4 RTS terface parameters menu is out 5 GND D lined in Figure 6 6NC ZEND E 6 DSR 7 RIS 7 GND 805 8 DCD To enter the serial parameter PUE s 1 de first A dE CE Figure 9 Serial Cable Wiring Diagram 9 Digital Communication Interface 9 1 2 1 9 1 2 2 9 1 2 3 9 1 2 4 EXIT while pressing SET and release to enter the secondary menu Press SET repeatedly until the display reads ProbE This is the menu selection Press UP repeatedly until the serial interface menu is indicated with 5 Finally press SET to enter the serial parameter menu In the serial in terface parameters menu are the BAUD r
46. he PEM 4 Change the fuses to the appropriate current rating for the voltage see Section 4 Safety Guidelines 5 Replace fuse holder with the appropriate voltage displayed through the window of the PEM 6 The power cord may need to be changed to mate with the appropriate 230 VAC or 115 VAC socket Some options are listed e 230 VAC Europe 10A approved cord with CEE 717 plug US 15A approved cord with a NEMA 6 15 straight blade plug e 115 VAC US 15A approved cord with a NEMA 5 15 plug 7 General Operation 7 3 7 4 Setting the Temperature Section 8 3 explains in detail how to set the temperature set point on the cali brator using the front panel keys The procedure is summarized here 1 Press SET twice to access the set point value 2 Press UP or DOWN to change the set point value 3 Press SET to program in the new set point 4 Press EXIT to return to the temperature display When the set point temperature is changed the controller will switch the well heater on or off to raise or lower the temperature The cycle indicator a two color LED will also indicate on red and heating or off green and cooling The displayed well temperature will gradually change until it reaches the set point temperature The well may require 5 to 20 minutes to reach the set point depending on the span Another 5 to 10 minutes is required for the temperature to stabilize Calibrating Probes The dry wel
47. heck the fuses Check that the power cord is plugged in and connected to the unit Red LED on display is blank Check that there is power to the unit The unit heats slowly Check the Scan and Scan Rate settings The Scan may be on with the Scan Rate set low o c is displayed at the left of the display The external switch is open causing the displayed temperature to be frozen and keeping the set point from scanning Turn the Switch Test off by press ing the DOWN button on the front panel If the display flashes any error code Initialize the system by performing the Master Reset Sequence If the unit repeats the error code contact a Hart Scientific Authorized Customer Service Center for return authorization and for instructions on returning the unit Master Reset Sequence Hold the SET and EXIT keys down at the same time while powering up the unit The screen will display nt the instrument model number and the version of the software The unit will need to be reprogrammed for RO ALPHA and DELTA in the calibration menu These numbers can be found on the Report of Calibration that was shipped with the unit If the display flashes 273 or 459 The sensor is disconnected or shorted Please contact Hart Scientific Cus tomer Support for further instructions If the display flashes cut out The software cut out is set to low Chec
48. intenance e over temperature cut out should be checked every 6 months to see that it is working properly In order to check the user selected cut out fol low the controller directions Section 8 2 for setting the cut out Both the manual and the auto reset option of the cut out should be checked Set the instrument temperature higher than the cut out Check to see if the display flashes cut out and the temperature is decreasing Hart Scientific 13 13 1 9105 9107 Troubleshooting Troubleshooting 13 Troubleshooting In the event that the dry well appears to function abnormally this section may help to find and solve the problem Several possible problem condi tions 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 dry well seems faulty or the problem cannot otherwise be solved contact Hart Scientific Customer Service for assis tance 1 801 763 1600 Be sure to have the instrument model number serial number and voltage available Problem Causes and Solutions Incorrect temperature reading Power the unit on and watch the display If the first number displayed is less than 000 5 the unit has been re initialized The unit needs to be re programmed for RO ALPHA and DELTA These numbers can be found on the Report of Calibration that was shipped with the unit The display is off C
49. is is because the power output changes very little with tempera ture and the controller 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 varia tions For best control stability the proportional band must be set for the opti mum width Proportional Band too Narrow Proportional Band too Wide Optimum Proportional Band n Figure 8 Well temperature fluctuation at various proportional band settings The proportional band width is set at the factory to about 2 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 is accessed within the secondary menu Press SET and EXIT to enter the secondary menu and show the heater power Then press SET to access the proportional band SET Access heater power secondary menu i2 Pek Heater power in percent SET Access proportional band 8 Controller Operation To accept the new setting and access the cut out set point press SET Pressing EXIT will exit the secondary menu ignoring any changes just made to the proportional band v
50. k the cut out setting in the Set point menu 13 Troubleshooting 13 2 13 2 1 13 2 2 Problem Causes and Solutions Temperature readout is not the With the unit stable slowly rotate the unit If no change occurs the unit actual temperature of the well may need 10 be calibrated Contact Hart Scientific Customer Service If the display changes more than twice the normal display deviation another unit in the area could emitting RF energy Move the unit to different loca tion and rotate the unit again If the temperature is correct in this new area or deviates differently than the first area RF energy is present in the room If you have to perform the test in the effected area use the comparison test to eliminate any possible errors Comments EMC Directive Hart Scientific s equipment has been tested to meet the European Electromag netic Compatibility Directive EMC Directive 89 336 EEC Selection of Light Industrial of Heavy Industrial compliance has been based on the intended use of the instrument Units designed for use in a calibration laboratory have been tested to Light Industrial Standards Units designed to be used in the field have been tested to both Light Industrial and Heavy Industrial Standards 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 7
51. k to the sensor and affect the calibration DO use a ground fault interrupt device Hart Scientific Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product Hart Scientific Inc 7799 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 1 Before You Start Telefax 31 402 675321 E mail ServiceDesk fluke nl Fluke Int l Corporation Service Center Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie Chao Yang District Beijing 100004 PRC CHINA Phone 86 10 6 512 3436 Telefax 86 10 6 512 3437 E mail xingye han fluke com cn Fluke South East Asia Pte Ltd Fluke ASEAN Regional Office Service Center 83 Clemenceau Avenue 15 15 06 Ue Square 239920 SINGAPORE Phone 65 737 2922 Telefax 465 737 5155 E mail antng singa fluke com When contacting these Service Centers for support please have the following information available e Model Number e Serial Number e Voltage Complete description of the problem 6 Hart Scientific 9105 9107 2 Introduction Introduction The Hart Scientific Model 9105 9107 dry well calibrator may be used as a por table instrument for calibration of tempera
52. l block provides a constant temperature environment in which probes may be compared The probes inserted into the block may be compared to the well temperature displayed on the front panel of the calibrator The probes should be inserted the full depth of the well since the temperature at the bottom of the well will most closely agree with the displayed temperature For greater accuracy the probes may be compared to a reference thermometer inserted into the block The reference thermometer may be inserted into one hole while the probes to be calibrated are inserted into another The drawback to this method is that because of temperature variations throughout the block there may be a small temperature difference between one hole and another which can cause errors Using the same hole for the reference thermometer and the test probe may have better results This however requires switching the probes which takes more time One must allow a few minutes after inserting the probes for the tempera ture to stabilize before making measurements Because of temperature varia tions along the length of the well best results are obtained when comparing probes of similar construction and inserting them the same depth into the well Hart Scientific 9105 9107 8 1 8 2 8 Controller Operation Controller Operation This chapter discusses in detail how to operate the dry well temperature con troller using the front control panel Using the front panel k
53. ll heater on or off to raise or lower the temperature The displayed well tempera ture will gradually change until it reaches the set point temperature The well may require 5 to 10 minutes to reach the set point depending on the span An other 5 to 10 minutes is required to stabilize with 0 1 C of the set point Ulti mate stability may take 15 to 20 minutes more of stabilization time Hart Scientific 6 Parts and Controls 6 Parts and Controls The user should become familiar with the dry well calibrator and its parts 6 1 Rear Panel See Figure 2 Power Cord At the rear of the calibrator is the removable power cord that plugs into a standard 115 VAC grounded socket 230 VAC optional Power Switch 9105 The power switch is located on the rear panel of the calibrator DISPLAY HOLD P 2 b POWER 115V 50 60 Hz 350W 2 5A Figure 2 Rear Panel 9105 9107 DISPLAY HOLD P 9329 488 option 115V 230V 50 60 Hz 350W II 300V 115V 250V 230V 3 15AT 250V Before opening disconnect mains Vor ffnen des Geh uses Netzstecker ziehen Avant d ouvrir l appereil retirez la fichem le MADE IN USA 201811 9107 un 6 Parts and Controls Power Entry Module 9107 The power switch is located on the power entry module PEM The PEM also houses the fuses The supply voltage for the unit is indicated on the PEM Seri
54. mand Description Format Example Returned Example Values Display Temperature Read current set point s etpoint 5 set 9999 99 Cor F set 150 00 Set current set point to n s etpoint n 5 450 Instrument Range Read scan function san sc scan ON or OFF scan ON Set scan function sc an on of f ON or OFF Turn scan function on sd an on sc on Turn scan function off sd 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 minute sr ate n 4 5 110 100 C Read display temperature hold status hm ode hm hm OFF or AUTO or NO or NG Set display temperature hold mode hm ode OF F AU TO N OFF or AUTO or NO 0 NC or NC Set hold mode to off hm ode OF F hm of Set hold mode to automatic hm ode AU TO hm auto Set hold mode to normally open hm ode NO hm no Set hold mode to normally closed hm ode NC hm nc Read temperature tLemperature 1 t 9999 99 Cor F 1 55 69 C Read hold status ho ld ho ho Closed or Open 9999 99 ho Open 75 0 C or F Secondary Menu Read proportional band setting prLop band pr ph 999 9 pb 15 9 Set proportional band to n pr op band n pr 8 83 Depends on Configuration Read cutout setting cLutout 9999 C or F c 620 C in Set cutout setting c utout n r eset Set cutout to n degrees dutout n c 500 Temperature Range Reset cutout now cLutout rLeset cr Read heater power po wer po 9999 po 1 duty cycle Ramp and Soak Menu Read number of pro
55. mperature set point These are programmed at the factory when the instrument is calibrated Do not alter the value of these parameters If the user desires to calibrate the instrument for im proved accuracy then calibrate RO and ALPHA according to the procedure given in Section 10 CO This parameter is used at the factory for testing purposes and should not be al tered by the user Hart Scientific 9 1 9 1 1 9 1 2 9105 9107 9 Digital Communication Interface Digital Communication Interface The dry well calibrator is capable of communicating with and being controlled by other equipment through the digital interface Two types of digital interface are available the RS 232 serial interface and the IEEE 488 GPIB interface With a digital interface the instrument may be connected to a computer or other equipment This allows the user to set the set point temperature monitor the temperature and access any of the other controller functions all using remote communications equipment Serial Communications The calibrator is installed with an RS 232 serial interface that allows serial digital communications over fairly long distances With the serial interface the user may access any of the functions parameters and settings discussed in Sec tion 8 with the exception of the BAUD rate setting Wiring The serial communications ca RS 232 Cable Wirina for ble attaches to the calibrator 9 throug
56. ough which a probe can be inserted Figure 5 Well Insulator Top View 9105 9107 7 1 7 2 7 General Operation General Operation Calibrator Set Up Place the calibrator on a flat surface with at least 6 inches of free space around the instrument Overhead clearance is required DO NOT place under a cabinet or other structure Plug the power cord into a grounded mains outlet Observe that the nominal voltage corresponds to that indicated on the back of the calibrator Gently insert the probe sleeve into the well The probe sleeve should be of the smallest hole size possible while allowing the probe to slide in and out easily Sleeves of various sizes are available from the manufacturer 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 at the rear of the in strument to the 1 on position The fan will begin circulating air through the instrument After a brief self test the controller should begin normal operation showing the well temperature The block will heat or cool until it reaches the programmed set point Switching to 230 V Operation 9107 only To change the mains voltage on the 9107 perform the following steps 1 Unplug the unit from the power source 2 Insert a flat headed screwdriver into the slot on the PEM 3 Remove the fuse holder from t
57. ower bumps from brown outs and black outs could damage 4 Safety Guidelines the instrument Wait until the power has stabilized before re energizing the instrument 12 Hart Scientific 5 1 5 2 5 3 9105 9107 5 Quick Start Quick Start Unpacking Unpack the dry well 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 9105 or 9107 Dry well e 2173 Insert 1 4 Aluminum e Power Cord e Manual e Two Well Insulators 9107 only e Tongs insert removal tool Set up Place the calibrator on a flat surface with at least 6 inches of free space around the instrument Overhead clearance is required DO NOT place under a cabinet or structure 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 Probe sleeves should be of the smallest hole diameter possible still allowing the probe to slide in and out eas ily Sleeves of various sizes are available for 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
58. r transmitted back to the device of origin With half duplex the commands are executed but not echoed The default setting is full duplex The mode may be changed using UP or DOWN and pressing SET Linefeed 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 LE 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 Hart Scientific 9 2 1 1 9 1 3 9 2 9 2 1 9 2 2 9105 9107 9 Digital Communication Interface Serial Operation Once the cable has been attached and the interface set up properly the control ler will immediately begin transmitting temperature readings at the pro grammed 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 temperature set point and view or program the various parameters The interface commands are discussed in section All commands are ASCII charac ter strings terminated with a carriage return character CR ASCII 13 IEEE 488 Communication The IEEE 488 interface is available as an option Instruments supplied with this option may be connected to a GPIB type communication bus which allows many instruments to be connected and controlled
59. rmally open mode Press SET to accept the displayed setting Scan Hold In addition to controlling the hold temperature display a switch can also con trol set point scanning by enabling the scan hold function When the switch changes from its normal position to its active position scanning will stop For the scan hold to be effective scanning must be enabled and the scan rate should be set to a relatively low value see sections 8 4 1 and 8 4 2 The scan hold is set in the primary menu after the temperature hold mode setting Press SET to accept the displayed setting Switch Wiring The thermal switch or cut out is wired to the calibrator at the two terminals at the back of the dry well calibrator labeled DISPLAY HOLD The switch wires may be connected to the terminals either way Internally the black termi nal connects to ground The red terminal connects to 5V through 10 re sistor The calibrator measures the voltage at the red terminal and interprets 5V as open OV as closed Switch Test Example This section describes a possible application for the temperature hold feature and how the instrument is set up and operated Suppose you have a thermal switch which is supposed to open at about 75 C and close at about 50 C and you want to test the switch to see how accurate and repeatable it is You can use the temperature hold feature and the ramp and 8 Controller Operation soak feature described in d
60. set point The approximate ratio between a change in DELTA and a change in temper ature at 140 C is about 1 7 to 1 For example if the block temperature is high by 0 1 C at 50 C then increase DELTA by 0 17 Set the set point to 259 and allow adequate time for the block to reach this temperature and stabilize Adjust the BETA calibration pa rameter see Section 8 11 1 4 to make the block temperature as mea sured with the standard thermometer match the set point The approximate ratio between a change in BETA and a change in tempera ture at 25 C is about 50 to 1 For example if the block temperature is high by 0 1 C at 25 C then increase BETA by 5 0 Repeat Step 1 to ensure the instrument is now accurate throughout the full range Hart Scientific 9105 9107 12 Maintenance 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 instrument 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 cloth and mild detergent Do not use harsh chemicals on the surface which may damage the paint It is important to keep the well of the calibrator clean and clear of any for eign matter DO NOT use fluid to clean out the well The
61. simultaneously To eliminate noise the GPIB cable should be shielded Setup To use the IEEE 488 interface first connect an IEEE 488 standard cable to the back of the calibrator Next set the device address This parameter is pro grammed within the IEEE 488 interface menu The IEEE 488 interface param eters menu is outlined in Figure 6 To enter the IEEE 488 parameter programming menu first press EXIT while pressing SET and release to enter the secondary menu Press SET repeat edly until the display reaches This is the menu selection Press UP repeatedly until the IEEE 488 interface menu is indicated with IEEE Press SET to enter the IEEE 488 parameter menu The IEEE 488 menu contains the IEEE 488 address parameter IEEE 488 Interface Address The IEEE 488 address is prompted with AddrESS Press SET to program the address The default address is 22 Change the device address of the calibra tor if necessary to match the address used by the communication equipment by pressing UP or DOWN and then SET IEEE 488 Operation Commands may now be sent via the IEEE 488 interface to read or set the tem perature or access other controller functions All commands are ASCII charac ter strings and are terminated with a carriage return CR ASCII 13 Interface commands are listed below 9 Digital Communication Interface 9 3 Interface Commands The various commands for acce
62. ssing the calibrator functions via the digital in terfaces are listed in this section see Table 2 starting on page 47 These com mands are used with both the RS 232 serial interface and the IEEE 488 GPIB interface In either case the commands are terminated with a carriage return character The interface makes no distinction between upper and lower case let ters 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 to 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 CR returns the current set point and s 50 00 CR sets the set point to 50 00 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 Spaces may be added within command strings and will simply be ig nored Backspace BS ASCII 8 may be used to erase the previous character A terminating CR is implied with all commands Hart Scientific Table 2 Communications Commands 9 Digital Communication Interface Command Command Returned Acceptable Com
63. t the program see Section 8 6 5 12 Collect data on a computer connected to the RS 232 port Refer to Section 9 for instructions on configuring the RS 232 communications interface The data may appear as shown in Figure 7 The maxima and minima are the switch temperatures Hart Scientific 8 6 8 6 1 9105 9107 8 Controller Operation 90 85 80 75 70 Deg C 65 60 55 50 45 40 Time Figure 7 Switch Test Data Ramp and Soak Program Menu The ramp and soak program feature allows the user to program a number of set points and have the dry well automatically cycle between the temperatures holding at each for a determined length of time The user can select one of four different cycle functions The program parameter menu is accessed by pressing SET and then UP i pg0 00 Well temperature Access program menu Quom um enun Press SET to enter the program menu SET Enter program menu Number of Program Set points The first parameter in the program menu is the number of set points to cycle through Up to 8 set points can be used in a ramp and soak program Number of program set points 8 Controller Operation Use the UP or DOWN buttons to change the number from 2 to 8 3 New number of program set points Press SET to continue Pressing EXIT will cause any changes made to the parameter to be ignored SET Save new setting
64. the BAUD rate The current BAUD rate value will then be displayed Current BAUD rate The BAUD rate of the serial communications may be programmed to 300 600 1200 or 2400 BAUD Use UP or DOWN to change the BAUD rate value 2400 b i New BAUD rate 8 Controller Operation 8 11 3 2 8 11 3 3 8 11 3 4 Press SET to set the BAUD rate to the new value or EXIT to abort the op eration and skip 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 For example if the sample rate is set to 5 the instrument transmits the current measurement over the serial inter face approximately every five seconds The automatic sampling is disabled with a sample period of 0 The sample period is indicated by SAMPLE Serial sample period parameter Press SET to choose to set the sample period The current sample period value will be displayed 1 Current sample period seconds Adjust the value with UP or DOWN and then use SET to set the sample rate to the displayed value 58 80 New sample period 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 via the serial interface ar
65. the probes to be calibrated allow sufficient time for the probes to settle and the temperature of the dry well to stabilize Both the reference probe and the probe under test should be the same size and construction Using probes with different lengths diameters and materials will have different stem effects causing an unknown temperature difference All dry wells have horizontal and vertical gradients that change with temperature This is an unknown variable which can be factored out if probes are the same 10 Test Probe Calibration 10 1 3 10 2 type length diameter and material Probes should be inserted to the same depth in the well The following procedure can be used to calibrate a probe against a reference while eliminating error due to temperature gradients between wells 1 Place the reference probe in one well 2 Place the probe to be calibrated the unit under test UUT in another well 3 With the reference inserted into one well and the probe under test in serted into a second well make measurements of each 4 Swap the locations of the reference probe and probe under test Allow plenty of time for thermal settling 5 Make another set of measurements of the reference probe and the probe under test 6 Average the two measurements of the reference probe Average the two measurements of the probe under test Averaging the two measure ments in this way eliminates error due to temperature gradients be
66. to the normal well temperature display press DOWN or EXIT 8 5 2 Mode Setting The temperature hold feature has three modes of operation In the nor mally closed n c mode the hold temperature display freezes when the switch opens In the normally open n o mode the hold temperature display freezes when the switch closes Whenever the switch is in the normal position the hold temperature follows the well temperature There is also an automatic mode In this mode the normal position is set to whatever the switch position is when the set point is changed For example if the switch is currently open when the set point is changed the closed position then becomes the new active position The normal position will be set automati cally under any of the following conditions 1 a new set point number is se lected 2 the set point value is changed 3 a new set point is set through the communications channels or 4 the ramp and soak program is running and automatically steps to the next set point in the sequence The automatic mode is useful for repetitive tests of the opening and closing temperatures of a switch The temperature hold feature can also be disabled by setting the mode to OFF The operating mode of the temperature hold is set in the primary menu after the scan rate setting 28 Hart Scientific 8 5 3 8 5 4 8 5 5 9105 9107 8 Controller Operation Hold n c Normally closed mode i HoLdzn o No
67. tting 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 Press SET to activate the new program control command and return to the temperature display 8 Controller Operation SET Activate new command 8 7 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 first function in the secondary menu is the heater power display 8 6 Heating Power The temperature controller controls the temperature of the well by heating or cooling the well with the thermoelectric modules The amount of heating or cooling power depends on the temperature set point of the well This heating or cooling power value may be estimated by watching the red green control indicator light or read directly from the digital display By knowing the amount of heating the user can tell if the calibrator is heating up to the set point cool ing down or controlling at a constant temperature Monitoring the percent heater power will let 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
68. ture probes The 9105 operates over the range of 25 C 140 C 9107 operates over the range of 45 C to 140 These dry well calibrators feature an interchangeable aluminum probe sleeve along with 4 fixed wells The temperature is accurately controlled by Hart s precision temperature controller The calibrator controller uses a precision platinum RTD as a sensor and con trols the well temperature with thermoelectric modules The LED front panel display continuously shows the current well temperature The temperature may be easily set with the control buttons to any desired temperature within the specified range The 9105 9107 dry well calibrator was designed for portability moderate cost and ease of operation With proper use the instrument should provide continued accurate calibration of temperature sensors and devices The user should be fa miliar with the safety guidelines and operating procedures of the calibrator as described in the User s Guide 3 1 3 2 9105 9107 3 Specifications and Environmental Conditions Specifications and Environmental Conditions Specifications The following table lists the specifications for this instrument Accuracy speci fications are applicable for a one year calibration interval In line with normal prudent metrology practices Hart Scientific recommends a short cycle interval of six months for new units during the first year 9105 9107 Power 115 VAC 10
69. vO 110 i WLISIG OIALHM X Nogaly 9 oooooo ZNO END MOSL A8 110 TNO YOLOANNOO 22 TSANHO Figure 11 9107 Wiring Diagram Hart Scientific
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