9011 Users Guide 612501.vp
Contents
1. Command Command Returned Acceptable Command Description Formatt Example Returned Example Values Read program set point soak time pt pt ti 999 ti 5 Set program set point soak time to pt n pt 5 0 to 500 n minutes Read program control mode pc pc prog OFF or ON prog OFF Set program control mode pc g 0 s top c ont GO or STOP or CONT Start program pc gl 0 pc g Stop program pc s top pc s Continue program pc c ont po 0 Read program function pf pf pf 9 pf 3 Set program function to n pf n pf 2 1to4 Configuration Menu Operating Parameters Menu Read high limit hl hl hl 999 hl 126 Set high limit hl n hl 90 Hot 25 to 670 C Cold 25 to 140 C Serial Interface Menu Read serial sample setting sa mple sa sa 999 sa 1 Set serial sampling setting to n sa mplej n sa 0 0 to 999 seconds Read serial duplex mode cold du plex du du FULL of HALF du FULL side only Set serial duplex mode cold du plex f ull h alf FULL or HALF side only Set serial duplex mode to full du plex f ull du f Set serial duplex mode to half du plex h alf du h Read serial linefeed mode cold Ifleed If If ON side only Set serial linefeed mode cold If eed on of f ON or OFF side only Set serial linefeed mode to on If eed on If on Set serial linefeed mode to off Ifleed 0f f If of Calibration Menu WARNING changing the following calibration values may change the accuracy of the instrument2. 30 6 13 1 Baud Rate cold side only ose sere Sa ds 30 6 13 2 Sample Period hot and cold sides Liar a nee ee Hawa ee os 31 6 13 3 Duplex Mode cold side only uo grrr use euad eee 31 6 13 4 Linefeed cold side only aims 424 64 aa oe Some De wm 32 6 14 Calibration Parameters 32 6 14 1 Hard Cutout hot side only a assed eee eae aa eR eee dnia 33 6 14 2 a a aa eeaeee Aro randstad es 33 6 14 3 ALCA isos PO oe a wee eae hea ee ea es Bae 33 6 14 4 DELIA vir es ra ARA AA 34 6 14 5 BETA cold side only esca ars ass es 34 7 Digital Communication Interface 37 Tal Serial Communications 2 000004 37 ALi WINS ee ae we a ee eS ee ee A eS 3I 7 1 2 SCUD E NET oT 7 1 2 1 Baud Rate Cold Side Only cetro oe SE Pm Sm RO ES 38 JA22 Sample Period coi rd ae SED ES AAA 38 FA Duplex Mod s s 4 234 sace e en ii ica a ed eh eee eee 38 Ll Linefeedi 25 we he ee oe e ERE a Se ee ee 38 Teld Seral Operas Saw do aa a a a i 39 T 2 Interface Commands 3 soo roa 6 He e e SOE e E e i 39 S Test Probe Calibration 43 8 1 Calibrating a Single Probe o 43 8 2 Dry well Characteristics o 0a a a a a 43 8 2 1 Stabilization and Accuracy uscar BES EOS HES OEE 43 To order parts and items go to www lnstrumentation com or call 800 346 4620 9 Calibration Procedure oooooo o o 45 9 1
3. Read RO calibration parameter r O r r0 999 999 r0 100 578 Set RO calibration parameter ton r 0 n r 100 324 95 0 to 105 0 Read ALPHA calibration al pha al al 9 99999999 al 0 0038573 parameter 41 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide Controller Communications Commands continued Command Command Returned Acceptable Command Description Formatt Example Returned Example Values Set ALPHA calibration parameter al pha n al 0 0038433 0 0032 to to n 0 0042 Read DELTA calibration parameter dellta de de 9 99999 de 1 46126 Set DELTA calibration parameter dellta n de 1 45 1 0 to 1 9 ton Read BETA calibration parameter belta be be 9 999 be 0 342 cold side only Set BETA calibration parameter to belta n be 0 342 25 0 to 25 0 n cold side only Miscellaneous not on menus Read firmware version number ver sion ver ver 9999 9 99 ver 9011 1 11 Read structure of all commands h elp h list of commands Read all parameters all all list of parameters and their values Legend Optional Command data Alternate characters or data 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 Note When DUPLEX is set to FULL and a command is sent to READ the command is return
4. Sample Period DO NOT CHANGE THESE VALUES Adi Sample Period Select ALPHA Adjust ALPAH Select DELTA Adj Duplex Mode SET EXIT JUO apis PIO Y Linefeed Adjust DELTA Select BETA Adjust Linefeed JUO pls PIO Adjust BETA Figure 4 Controller Operation Flow Chart 20 To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Temperature Set point SET Access set point memory 4 300 i New set point memory 4 location 300 C Press SET to accept the new selection and access the set point value Press EXIT to continue and to ignore any changes SET Accept selected set point memory 6 2 2 Set point Value The set point value may be adjusted after selecting the set point memory and y e00 Set point 4 value in C If the set point value does not need to be changed press and hold EXIT to re sume displaying the well temperature To change the set point value press SET and then UP E 0 00 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 any changes made to the set point are ignored SET Accept new set point value 6 2 3 Temperature Scale Units The temperature scale units of the controller maybe set by
5. and J are optional for the command A slash denotes alternate characters or data Numeric data denoted by n may be entered in decimal or exponential notation Characters are shown in lower case although upper case may be used Spaces may be added within command strings and will simply be ignored Backspace BS ASCII 8 may be used to erase the previous character A termi nating CR ASCII 13 is implied with all commands Note Commands that are preceded by a C or an H access the cold or hot side respectively If the C or H are not used the command accesses the cold side It is highly recommended to always use C or H prefixes to en sure setting or reading a parameter on the correct controller Responses to com mands do not indicate which controller the setting or reading applies to or came from 39 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide Table 2 Controller Communications Commands Command Command Returned Acceptable Command Description Formatt Examplet Returned Example Values Display Temperature Read current set point s etpoint S set 9999 99 C or set 150 00 C F Set current set point to n s etpoint n s 450 Controller Range Read temperature unit u nits u u C or F u C Set temperature unit
6. Hart Scientific 9011 High Accuracy Dual Well Calibrator User s Guide Rev 612501 To order parts and items go to www Instrumentation com or call 800 346 4620 Fluke Corporation Hart Scientific Division Subject to change without notice e Copyright 2005 Printed in USA Rev 612501 To order parts and items go to www Instrumentation com or call 800 346 4620 Table of Contents 1 Before You Start 4c ean bs cee wee eee eee eG 1 1 1 INMOCGUCHON s s se pe Se eh ee eee ee aE we Re l 1 2 Symbols Used aaaea ens de ews 2 1 3 Safety Information ss kcal 3 1 3 1 WARNINGS 20 o as AAA 6 Gee ieee Ge Bee 3 1 3 2 CAUTIONS corset ora 5 1 4 Authorized Service Centers 6 2 Specifications and Environmental Conditions 9 2 1 Specifications aos seso o 9 2 2 Environmental Conditions o 9 Zo WaltA owe e ee Oe eo ee ee ea eee ee ee 10 3 Quick Start 6 2 oes Cee RE he eae eee ee ee Ss 11 3 1 Unpacking aoa a a 11 3 2 o EERTE TETERE bas ETETE Y 11 3 3 POWEE wa cake ened eh eee a 1 3 4 petting the Temperate s s e he kb sosa eS Oe RS ome 12 4 Parts and Controls 13 4 1 a AMAIA 13 42 Front Panel AI 14 4 3 Top Pamel E E E eee E E E E E eG 15 4 4 Constant Temperature Block Assembly 15 5 General Operation lt lt o 17 Dal Setting the Temperature ssn jas Se oOo oe ewe HSS 17 5 2 Changing Di
7. 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 1 3 1 A WARNINGS To avoid personal injury follow these guidelines GENERAL e DONOT use this instrument in environments other than those listed in the User s Guide e Inspect the instrument for damage before each use DO NOT use the in strument if it appears damaged or operates abnormally e Follow all safety guidelines listed in the user s manual e Calibration Equipment should only be used by Trained Personnel e If this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired e Before initial use or after transport or after storage in humid or semi hu mid environments or anytime the dry well has not been energized for more than 10 days the instrument needs to be energized for a dry out period of 2 hours before it can be assumed to meet all of the safety re quirements of the IEC 1010 1 If the product is wet or has been in a wet environment take necessary measures to remove moisture prior to apply ing power such as storage in a low humidity temperature chamber operat ing at 50 C for 4 hours or more To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual W
8. C for high temperature 400 C and higher dry wells Note Probes and inserts may be hot and should only be inserted and removed from the instrument when the instrument is set at temperatures less than 50 C Use extreme care when removing hot inserts DO NOT turn off the instrument at temperatures higher than 100 C This could create a hazardous situation Select a set point less than 100 C and allow the instrument to cool before turning it off The high temperatures present in dry wells designed for operation at 300 C and higher may result in fires and severe burns if safety precau tions are not observed ELECTRICAL SHOCK These guidelines must be followed to ensure that the safety mechanisms in this instrument will operate properly This instrument must be plugged into a 115 VAC 60Hz 230 VAC 50Hz optional AC only electric outlet The power cord of the instrument is equipped with a three pronged To order parts and items go to www Instrumentation com or call 800 346 4620 1 Before You Start Safety Information grounding plug for your protection against electrical shock hazards It must be plugged directly into a properly grounded three prong receptacle The receptacle must be installed in accordance with local codes and ordi nances Consult a qualified electrician DO NOT use an extension cord or adapter plug e If supplied with user accessible fuses always replace the fuse with one of the same rating voltage and ty
9. Interconnect Link ap pears on the display Press any front control panel button to eliminate the ICL message The hot block serial commands are not available unless both power switches were turned on within three seconds of each other The display shows the well temperature and the well heater brings the tempera ture of the well to the set point temperature 11 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 12 3 4 After using the calibrator allow the well to cool by setting the temperature to 25 C and waiting 1 2 hour before turning the instrument off Setting the Temperature Section 6 2 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 and hold EXIT to return to the temperature display When the set point temperature is changed the controller switches the well heater on or off to raise or lower the temperature The displayed well tempera ture gradually changes until it reaches the set point temperature The well may require considerable time to reach the set point depending on the span Addi tional time is required to stabilize within 0 1 C of the set point To o
10. Press UP or DOWN to change the set point value 3 Press SET to program in the new set point 4 Press and hold EXIT to return to the temperature display When the set point temperature is changed the controller switches the well heater on or off to raise or lower the temperature The displayed well tempera ture gradually changes until it reaches the set point temperature The well re quires considerable time to reach the set point depending on the span Additional time is required to stabilize within 0 1 C of the set point Changing Display Units This instrument can display temperature in Celsius or Fahrenheit The tempera ture units are shipped from the factory set to Celsius 1 Press SET three times from the temperature display to show O 2 Press UP or DOWN to change units 3 Press SET to save the setting or EXIT to continue without changing the setting 17 To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Well Temperature 6 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 key 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 and program the calibration
11. installation and removal of probes 4 2 Front Panel Power Switches The power switches for both controllers are located on the front panel of the instrument The switches are either on or off The on position is for normal operation The off position disconnects power to the entire unit 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 9011 DUAL BLOCK DRY WELL CALIBRATOR HOT SIDE 50 C to 670 C COLD SIDE 30 C to 140 C SET DOWN UP EXIT SET DOWN UP EXIT Figure 2 Front Panel Setting the control temperature is done directly in degrees of the current scale It can be set to one tenth of a degree Celsius or Fahrenheit The functions of the buttons are as follows SET Used to display the next parameter in the menu and to store parameters to the displayed value DOWN Used to decrement the displayed value of parameters UP Used to increment the displayed value EXIT Used to exit a function
12. Centers to coordinate service on your Hart product Fluke Corporation Hart Scientific Division To order parts and items go to www Instrumentation com or call 800 346 4620 1 Before You Start Authorized Service Centers To order parts and items go to www Instrumentation com or call 800 346 4620 2 Specifications and Environmental Conditions Specifications 2 Specifications and Environmental Conditions 2 1 Specifications Hot Block Cold Block Range 50 C to 670 C 122 F to 1238 F 30 C to 140 C 22 F to 284 F Accuracy 0 2 C at 50 C 0 25 C insert wells 0 4 C at 400 C 0 65 C fixed wells 0 65 C at 600 C Stability 0 02 C at 100 C 0 02 C at 30 C 0 06 C at 600 C 0 04 C at 140 C Uniformity 0 2 C 0 05 C typical 0 05 C insert wells 0 25 C fixed wells Well Depth 6 152 mm 4 875 124 mm Heating Time to Max 30 minutes 15 minutes Cooling Times 120 minutes from 660 C to 100 C 30 minutes from 140 C to 30 C Well Inserts 1 interchangeable well accommodates 1 interchangeable well accommodates multi hole insert multi hole insert plus four outer wells 1 4 1 4 3 16 and 1 8 Computer Interface RS 232 interface included with Model 9930 Interface it control software Power 115 VAC 10 8 8 A or 230 VAC 10 4 4 A switchable 50 60 Hz 1150 W Size 11 5 H x 15 5 W x 10 5 D 292 x 394 x 267 mm Weight 36 lb 16 4 kg
13. NIST Traceable Certificate Data at 50 C 100 C 200 C 300 C Data at 30 C 0 C 25 C 50 C 8 points 400 C 500 C 600 C and 660 C 75 C 100 C 125 C and 140 C Safety OVERVOLTAGE Installation CATEGORY II Pollution Degree 2 per IEC 1010 1 Fault Protection Sensor burnout protection over temperature cutout and electrical fuses Fuses 115 V 10 A F Hot 4 AT Cold 250 VAC 230 V 5 AF Hot 3 15 A T Cold 250 VAC Using same type of probes 2 2 Environmental Conditions Although the instrument has been designed for optimum durability and trou ble free operation it must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and clean ing recommendations can be found in the Maintenance Section of this manual The instrument operates safely under the following conditions e temperature range 5 50 C 41 122 F To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 10 2 3 e ambient relative humidity 15 50 e pressure 75kPa 106kPa e mains voltage within 10 of nominal e vibrations in the calibration environment should be minimized e altitudes less than 2000 meters e indoor use only Warranty Fluke Corporation Hart Scientific Division Hart warrants this product to be free from defects in material and workmanship under normal use and service for a period
14. and to skip to the next function Any changes made to the displayed value are ignored 14 To order parts and items go to www lnstrumentation com or call 800 346 4620 4 Parts and Controls Top Panel 4 3 Top Panel Well Block The well block openings are located on the top of both the cold and hot sides These openings are for insertion of interchangeable inserts The inserts are designed to accept probes of varying diameters For insert details see Section 4 4 Constant Temperature Block Assembly Display Hold One set of Display Hold connectors are available for each block These connectors allow external switches to be connected and controlled by the instrument 4 4 Constant Temperature Block Assembly The contant temperature block assemblies provide a relatively constant and ac curate temperature environment for sensors to be calibrated High temperature platinum RTDs imbedded in the block assemblies senses and control the tem perature of the blocks Inserts for use in the constant temperature block assem blies are shown in Figure 3 A Warning The air over the constant temperature block assembly can reach temperatures greater that 200 C for high temperature 400 C and higher dry wells Probes and inserts may be hot and should only be inserted and removed from the instrument when the instrument is set at temperatures less than 50 C Use extreme care when removing hot inserts Insert A has six holes that accept pr
15. as stated in our current product catalog from the date of shipment This warranty extends only to the original purchaser and shall not apply to any product which in Hart s sole opinion has been subject to misuse alteration abuse or abnormal conditions of operation or handling Software is warranted to operate in accordance with its programmed instruc tions on appropriate Hart products It is not warranted to be error free Hart s obligation under this warranty is limited to repair or replacement of a product which is returned to Hart within the warranty period and is determined upon examination by Hart to be defective If Hart determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal condi tions or operation or handling Hart will repair the product and bill the pur chaser for the reasonable cost of repair To exercise this warranty the purchaser must forward the product after calling or writing an Authorized Service Center see Section 1 4 The Service Centers assume NO risk for in transit damage THE FOREGOING WARRANTY IS PURCHASER S SOLE AND EXCLU SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EX PRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE HART SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAM AGES OR LOSS WHETHER IN CONTRACT TORT OR OTHERWISE To order pa
16. be used as a portable instrument or bench top temperature calibrator for calibrating ther mocouple and RTD temperature probes Calibrations may be done over a range of 30 C to 670 C 22 F to 1238 F Temperature display and setability reso lution is 0 1 degrees The instrument features e Rapid heating and cooling e Hot and cold blocks in a single unit e RS 232 interface capability e Switch hold test Built in programmable features include e Temperature scan rate control e Eight set point memory e Adjustable readout in C or F The temperature is accurately controlled by Hart s digital controller The con troller uses a precision platinum RTD as a sensor that controls the well temper ature with a triac driven heater or thermoelectric devices TED The LED front panel continuously shows the current well temperature of both hot and cold blocks The temperature may be set using the control buttons to any desired temperature within the instrument s range Multiple fault protection devices insure user and instrument safety and protection This dry well calibrator was designed for portability low cost and ease of op eration Through proper use the instrument will provide continued accurate calibration of temperature sensors and devices The user should be familiar with the safety guidelines and operating procedures of the calibrator as de scribed in the instruction manual To order parts and items go to www Ins
17. continue SET Accept scan rate Temperature Display Hold There are two sets of display hold terminals located on the top of the 9011 one for the cold side and one for the hot side The display hold terminals are used for testing thermal switches To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Temperature Display Hold A CAUTION Do not apply any type of voltage to the display hold termi nals Applying a voltage to the terminals may cause damage to the con troller 6 4 1 Switch Status Connect the thermal switch to the display hold terminals on the either the hot or cold side To enable the Switch Status while displaying the temperature press UP on the hot or cold side The letter o switch open or c switch closed appears to the left of the display and flashes when it changes states When the Switch Status is enabled the displayed temperature does not show the hundredth place or the units For example if the switch 1s open and the temperature is 25 C o 25 8 is displayed To disable the Switch Status press the DOWN key When the Switch Status is displayed the Display Hold is also enabled allow ing the operator to view the temperature at which the switch changed states and the status of the thermal switch When the thermal switch changes states the controller does the following 1 Displays the temperature at which the switch changed states 2 Flashes
18. in Table 2 on page 40 7 1 Serial Communications The RS 232 serial interface allows serial digital communications over fairly long distances 15 24 meters With the serial interface the user may access any of the functions parameters and settings discussed in Section 6 Controller Op eration with the exception of the BAUD rate setting The serial interface oper ates with eight data bits one stop bit and no parity 7 1 1 Wiring The serial communications ca RS 232 Cable Wiring for ble attaches to the calibrator IBM PC and Compatibles through the DB 9 connector on the back of the instrument Fig ure 6 shows the pin out of this Instrument Computer DTE connector and suggested cable cee rapes wiring To eliminate noise the INE s serial cable should be shielded 2RxD e 2RxD with low resistance between the ine i Pl connector DB9 and the shield 5 GNDe e 5 GND 6NC gt 6DSR 7RTS e 7RTS o 9NC 9NC Before operation the serial in terface must first be set up by programs the BAUD rate Instrument Computer DTE and other configuration parame Connector Connector ters These parameters are pro cdi ag grammed within the serial ao 2 RxD o e 2TxD interface menu of the cold side 3TxD o 3 RxD controller The serial interface ING s 4RTS i 5 GNDe e 5CTS parameters menu is outlined in NO 6DSR Figure 4 on page 20 7RTS e 7GND 8 CTS 8DCD
19. parameters operating pa rameters and serial interface configuration Operation of the functions and parameters are shown in the flowchart in Figure 4 on page 20 This chart may be copied for reference In the following discussion a button with the word SET EXIT UP or DOWN indicates the panel button while the dotted box indicates the display reading Explanations of the button or display reading are to the right of each button or display value 6 1 Well Temperature The digital LED display on the front panel allows direct viewing of the actual well temperature This temperature value is normally shown on the display The units C or F of the temperature value are displayed at the right For example OU 00L Well temperature in degrees Celsius The temperature display function may be accessed from any other function by pressing and holding the EXIT button 6 2 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 Setting the temperature involves selecting the set point memory and adjusting the set point value 6 2 1 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 tempera
20. the new switch status 3 The controller continues in the above state until either the thermal switch is returned to its original state or the set point temperature changes Note This feature is a useful to quickly monitor thermal switch state changes with a rough idea of accuracy but is not accurate when compared with the dis played temperature Enable Scan Hold see Section 6 4 2 Scan Hold to im prove the accuracy The following example demonstrates the use of Switch Status using the Display Hold terminals Example 1 With the instrument displaying 25 C set the set point to 100 C and enable the Switch Status by pressing UP When the thermal switch changes states at say 50 C the displayed temperature shows 50 C and the status flashes o or c while the block continues to 100 C The display remains at the switched tem perature and o or c continues to flash until the switch changes status or a new set point is set 6 4 2 Scan Hold To enable scan hold first enable Switch Status Display Hold and the Scan Con trol see Section 6 3 1 Scan Control prior to setting the set point temperature Scan Hold is similar to Switch Status Display Hold but instead of displaying the temperature at which the thermal switch changes status it sets a new set point temperature to the current temperature at which the thermal switch 23 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibra
21. with care DO NOT allow them to be dropped struck stressed or overheated e The Factory Reset Sequence see Section Troubleshooting should be performed only by authorized personnel if no other action is successful in correcting a malfunction You must have a copy of the most recent Report of Calibration to restore the calibration parameters e DO NOT operate this instrument in an excessively wet oily dusty or dirty environment Always keep the well and inserts clean and clear of foreign material e The dry well is a precision instrument Although it has been designed for optimum durability and trouble free operation it must be handled with To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide care Always carry the instrument in an upright position to prevent the probe sleeves from dropping out The convenient handle allows for hand carrying the instrument e Ifa mains supply power fluctuation occurs immediately turn off the in strument Power bumps from brown outs could damage the instrument Wait until the power has stabilized before re energizing the instrument e Allow for probe expansion inside the well as the block heats e Most probes have handle temperature limits Be sure that the probe handle temperature limit is not exceeded in the air above the instrument 1 4 Authorized Service Centers Please contact one of the following authorized Service
22. 25 C 1s about 50 to 1 For example if the block temperature is high by 0 1 C at 25 C increase BETA by 5 0 Repeat Step 1 to ensure the instrument is now accurate throughout the full range To order parts and items go to www Instrumentation com or call 800 346 4620 10 Maintenance 10 Maintenance e This instrument has been designed with the utmost care Ease of operation and simplicity of maintenance have been a central theme in the product development Therefore with proper care the instrument should require very little maintenance Avoid operating the instrument in an oily wet dirty or dusty environment e If the outside of the instrument becomes soiled it may be wiped clean with a damp cloth and mild detergent Do not use harsh chemicals on the surface which may damage the paint e tis 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 e Use a commercially available plastic or felt brush of appropriate diameter for a tight fit without any fluid to clean the well Complete the cleaning process by using cotton swabs and air to remove any debris e Inserts should be cleaned periodically For cold dry wells operating below 0 C you should always clean the inserts after operating the unit at or be low 0 C e Use emery cloth or other similar material to clean the outside of the in serts Ensure that the inserts are wiped clean of any deb
23. Calibration Procedure 45 9 1 1 Calibration Equipment ss e ca aa ca dewa a A E 45 9 1 2 Calibration o s 4 oee Se howe pe aa and aa aaa SN 45 10 Maintenance ooo oooooo 47 11 Troubleshooting 49 11 1 Troubleshooting Problems Possible Causes and Solutions 49 11 2 CE Comments ooa rasa da a 50 11 2 1 EMC Directive ok 4 6 eee eka a 50 11 2 2 Low Voltage Directive Safety a 50 jii To order parts and items go to www lnstrumentation com or call 800 346 4620 Figures and Tables Table1 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Table 2 Table 2 Table 2 International Electrical Symbols 2 Dack Panels esas tee ete eeeer eee ee ewe eee we 13 POGUE MEET 14 Interchangeable Insert Options 04 16 Controller Operation Flow Chart 0 20 Temperature fluctuations at various proportional band settings 28 Se al Cable Wiring lt 3 2 ae 6 pesar e oe Ewe ae OES 3l Controller Communications Commands 40 Controller Communications Commands continued 4 Controller Communications Commands continued 42 To order parts and items go to www Instrumentation com or call 800 346 4620 1 Before You Start Introduction 1 Before You Start 1 1 Introduction The Hart Scientific 9011 High Accuracy Dual Well Calibrator may
24. SUP displayed 3 o 10 3 Current hard cutout setting Press EXIT to continue to the next parameter 6 14 2 RO 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 The value ranges from 95 to 105 The RO parameter is indicated by ro 3 Flashes for one second and then the RO setting is displayed pa es tm i ibe 3 New RO setting PTETITITITI TT TELE To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new RO setting 6 14 3 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 ALPHA Flashes for one second and then the ALPHA setting is AEE plano 33 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 6 14 4 6 14 5 34 38530 3 Current ALPHA setting DP TETITITI TTL EEE LEC C To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new ALPHA setting DELTA This probe parameter characterizes the curvature of the resistance temperature relationship of the sensor The value of this parameter is set at the factory for best instrument accuracy 3 dELEA Flashes for one second and then the DELTA sett
25. Solutions In the event that the instrument appears to function abnormally this section may help to find and solve the problem Several possible problem conditions are described along with likely causes and solutions If a problem arises please read this section carefully and attempt to understand and solve the problem If the problem cannot otherwise be solved contact an Authorized Service Center see Section 1 4 for assistance Be sure to have the instrument s model num ber serial number voltage and problem description available Problem Possible Causes and Solutions Incorrect tempera Incorrect RO ALPHA DELTA or BETA parameters Find the value for RO AL ture reading PHA DELTA and BETA on the Report of Calibration Reprogram the parameters into the instrument see Section 6 14 Calibration Parameters Allow the instrument to stabilize and verify the accuracy of the temperature reading Controller locked up The controller may have locked up due to a power surge or other aberration Initialize the system by performing the Factory Reset Sequence Factory Reset Sequence Hold SET and EXIT down at the same time while turn ing on the instrument When BUTTON is displayed release SET and EXIT and immediately press SET and EXIT again The instrument displays shows init the model number and the firmware version Each of the controller parameters and calibration constants must be repro
26. To enter the serial parameter 9NC e 20DTR menu on the cold side control Figure 6 Serial Cable Wiring ler press EXIT while holding 37 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 7 1 2 1 7 1 2 2 7 1 2 3 7 1 2 4 38 down SET then release both buttons to enter the secondary menu Press SET repeatedly until the display reads P Ar Press UP once the serial in terface menu is indicated with SEr AL Finally press SET to enter the se rial parameter menu In the serial parameters menu are the baud rate the sample period the duplex mode and the linefeed parameter Baud Rate Cold Side Only The baud rate is the first parameter in the menu and is indicated by BA U g Press SET to choose to set the baud rate The current baud rate value is dis played The serial communications baud rate may be programmed to 300 600 1200 2400 4800 or 9600 baud The baud rate is pre programmed to 2400 baud Use UP or DOWN to change the baud rate setting Press SET to accept the new setting or EXIT to abort the operation and skip to the next pa rameter in the menu Sample Period The sample period is the next parameter in the menu and is indicated by SPEr The sample period is the time period in seconds between temperature measurements transmitted from the serial interface I
27. al Well Calibrator User s Guide Speeding up the calibration process can be accomplished by knowing how soon to make the measurement It is recommended that typical measurements be made at the desired temperatures with the desired test probes to establish these times 44 To order parts and items go to www Instrumentation com or call 800 346 4620 9 Calibration Procedure Calibration Procedure 9 1 9 1 1 9 1 2 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 The following is provided as a basis for developing your own procedure for calibrating this instrument Calibration Equipment Calibration requires a standard thermometer that is adequately accurate and fits properly into one of the reference holes in each of the blocks 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 com bined accuracy of the PRT and the readout which is used to display the temper ature 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 cold side The calibration procedure involves measuring the error between the instrument and the reference therm
28. ck temperature is high by 0 1 C at 0 C decrease RO by 0 04 45 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 46 Set the set point to 100 C and allow adequate time for the block to reach this temperature and stabilize Adjust the ALPHA calibration parameter see Section 6 14 3 to make the block temperature as measured with the standard thermometer match the set point The approximate ratio be tween a change in ALPHA and a change in temperature at 100 C is about 0 00004 to 1 For example if the block temperature is high by 0 1 C at 100 C 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 parameter see Section 6 14 4 to make the block temperature as measured with the standard thermometer match the set point The approximate ratio be tween a change in DELTA and a change in temperature at 140 C is about 1 7 to 1 For example if the block temperature is high by 0 1 C at 140 C increase DELTA by 0 17 Set the set point to 25 C and allow adequate time for the block to reach this temperature and stabilize Adjust the BETA calibration parameter see Section 6 14 5 to make the block temperature as measured with the standard thermometer match the set point The approximate ratio be tween a change in BETA and a change in temperature at
29. e to settle as de scribed above Once the probe has settled to the temperature of the test well it may be compared to the calibrator display temperature A CAUTION Never allow foreign material into the probe holes of the block Fluids and other materials can damage the instrument causing binding and damage to your probe 8 2 Dry well Characteristics There is a temperature gradient vertically in the test well The heater has been applied to the block in such a way as to compensate for nominal heat losses out of the top of the dry well However actual heat losses vary with design of the thermometer probes inserted into the calibrator and the temperature For best results insert probe to full depth of test well 8 2 1 Stabilization and Accuracy The stabilization time of the instrument depends on the conditions and temper atures involved The well requires considerable time to reach the set point de pending on the span Additional time is required to stabilize within 0 1 C of the set point Inserting a cold probe into a test well requires another period of stabilizing de pending on the magnitude of the disturbance and the required accuracy For ex ample inserting a 0 25 inch diameter room temperature probe into a test well at 300 C takes 5 minutes to be within 0 1 C of its settled point and takes 10 min utes to achieve maximum stability 43 To order parts and items go to www lnstrumentation com or call 800 346 4620 9011 Du
30. e value 48006 b New baud rate O TOTTI Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu 6 13 2 Sample Period hot and cold sides The sample period is the next parameter in the menu The sample period is the time period in seconds between temperature measurements transmitted over the serial interface If the sample period is set to 5 the instrument transmits the current measurement over the serial interface approximately every five seconds The automatic sampling is disabled with a sample period of 0 The sample pe riod is indicated by SPET Flashes for one second and then the serial sample period SREB setting is displayed O a Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu 6 13 3 Duplex Mode cold side only 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 master controller via the serial interface are immediately executed and echoed or trans mitted back to the device of origin With half duplex the commands are exe cuted but not echoed The duplex mode parameter 1s indicated by duPL Flashes for one second and then the serial duplex mode SRP setting is displayed SU eee Pere Terr rT errr etree rrr rrr rrr 31 To order parts and items go to www Instrumentation com
31. eat the cycle indefinitely The table below 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 Press SET to continue SET Save new setting Program Control The final parameter in the program menu is the control parameter Three op tions are available for controlling the ramp and soak program The options are GO start the program from the beginning Cont continue the program from where it was when it was stopped or OFF stop the program Press SET to activate the new program control command and return to the temperature display SET Activate new command Set point Resistance The set point resistance is the resistance the instrument is trying to make the control sensor achieve and is calculated in the firmware using the set point tem perature This value is not directly adjustable but is recalculated when the set point temperature is changed The set point resistance is used to perform a calibration adjustment using the Callendar Van Dusen R versus T curve fit The To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Secondary Menu instrument must be at temperature and stable prior to taking the set point resis tance reading To display the Set point Resistance press SET and DOWN simultaneously when the temperature is displayed When
32. ed followed by a carriage return and linefeed Then the value is returned as indicated in the RETURNED column Note Commands that are preceded by a C or an H access the cold or hot side respectively If the C or H are not used the command accesses the cold side 42 To order parts and items go to www Instrumentation com or call 800 346 4620 8 Test Probe Calibration Calibrating a Single Probe 8 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 the test probe calibration proce dure allow the well to cool by setting the temperature to 25 C for one half hour before switching the power off Actual use of this instrument should be determined by your applicable Quality Assurance requirements The following procedure is provided for information only 8 1 Calibrating a Single Probe Insert the probe to be calibrated into the test well of the instrument The probe should fit snugly into the calibrator test well 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 test well Best results are obtained with the probe inserted to the full depth of the test well Once the probe is inserted into the test well allow adequate stabilization time to allow the test probe temperatur
33. ell Calibrator User s Guide DO NOT use this instrument for any application other than calibration work The instrument was designed for temperature calibration Any other use of the instrument may cause unknown hazards to the user Completely unattended operation is not recommended Overhead clearance is required DO NOT place the instrument under a cabinet or other structure Always leave enough clearance to allow for safe and easy insertion and removal of probes 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 This instrument is intended for indoor use only BURN HAZARDS DO NOT turn the instrument upside down with the inserts in place the inserts will fall out DO NOT operate near flammable materials Use of this instrument at HIGH TEMPERATURES for extended periods of time requires caution DO NOT touch the well access surface of the instrument The block vent may be very hot due to the fan blowing across the heater block of the dry well The temperature of the well access is the same as the actual display tem perature e g if the instrument is set to 375 C and the display reads 375 C the well is at 375 C For top loading dry wells the top sheet metal of the dry well may exhibit extreme temperatures for areas close to the well access The air over the well can reach temperatures greater that 200
34. f the sample period is set to 5 the instrument transmits the current measurement over the serial interface approximately 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 Press SET to save the new sample rate to the displayed value or EXIT to abort the operation and skip to the next parameter in the menu Duplex Mode The next parameter is the duplex mode indicated with d U P L The duplex mode may be set to half duplex HALF or full duplex FULL With full duplex any commands received by the controller via the serial interface are immedi ately executed and echoed or transmitted back to the device of origin With half duplex the commands are executed but not echoed The default setting 1s full duplex The mode may be changed using UP or DOWN Press SET to accept the new setting or EXIT to abort the operation and skip to the next pa rameter in the menu Linefeed The final parameter in the menu is the linefeed mode and is indicated by LF This parameter enables On or disables OFF transmission of a linefeed character LF ASCII 10 after transmission of any carriage return The default setting 1s with linefeed on The mode may be changed using UP or DOWN Press SET to accept the new setting or EXIT to abort the opera tion and ret
35. grammed The values can be found on the Re port of Calibration The instrument Incorrect scan and scan rate settings The scan and scan rate settings may be heats or cools too setto unwanted values Check the Scan and Scan Rate settings The scan may be quickly or too off if the unit seems to be responding too quickly The scan may be on with the slowly Scan Rate set low if unit seems to be responding too slowly Improper line voltage Verify that the voltage reading in the bottom of the unit matches the source voltage Unstable display Wait Allow the instrument to stabilize for a few minutes Proportional band may be incorrect Refer to the proportional band on the Report of Calibration 49 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 50 Problem Possible Causes and Solutions The display shows any error Controller problem The error messages signify the following problems with the controller Err 1 aRAM error Err 2 aNVRAM error Err 3 a Structure error Err 4 an ADC setup error Err 5 an ADC ready error Err 6 a defective control sensor Err 1 a heater error Initialize the system by performing the Factory Reset Sequence describe above Temperature can not be set above a certain point Incorrect High Limit parameter The High Limit parameter may be set below 150 C Check this value as described in Section 6 11 Operati
36. ing is ss displayed 3 1 50 10 Current DELTA setting To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new DELTA setting BETA cold side only This probe parameter relates to the higher order nonlinearity of the sensor be low 0 C The value is set at the factory for best instrument accuracy 3 bEER Flashes for one second and then the BETA setting is SUP displayed 3 D 111 Current BETA setting To change the BETA setting press UP or DOWN 0 108 3 New BETA setting To accept the new setting press SET Press EXIT to continue without stor ing the new value To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Calibration Parameters SET Accept the new BETA setting 35 To order parts and items go to www Instrumentation com or call 800 346 4620 7 Digital Communication Interface Serial Communications 7 Digital Communication Interface This instrument is capable of communicating with and being controlled by other equipment through the digital serial interface With a digital serial interface the instrument may be connected to a computer or other equipment This allows the user to set the set point temperature moni tor the temperature and access any of the other controller functions all using remote communications equipment Communications commands are summa rized
37. ng Parameters ICL Interconnect Link error or Err g Power on problem Both sides of the 9011 must be turned on within three seconds of one another for the serial communications to function on the hot side If ICL is displayed on either the hot or the cold side of the instrument the serial port does not control the hot side If ICL is displayed and control is desired from only the front panel press any button SET UP DOWN or EXIT to remove ICL from the display and to control the instrument from the front panel buttons 11 2 CE Comments 11 2 1 EMC Directive Hart Scientific s equipment has been tested to meet the European Electromag netic Compatibility Directive EMC Directive 89 336 EEC The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested 11 2 2 Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 23 EEC Hart Scientific equipment has been designed to meet the IEC 1010 1 EN 61010 1 and the IEC 1010 2 010 EN 61010 2 010 standards To order parts and items go to www Instrumentation com or call 800 346 4620
38. nted on the Report of WNS as Proportional Band too Narrow Proportional Band too Wide Optimum Proportional Band A A A AAA Figure 5 Temperature fluctuations at various proportional band settings Calibration The proportional band width may be altered by the user if desired to optimize the control 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 EXIT while holding down SET and then releasing both to enter the sec ondary menu and show the heater power Then press SET to access the pro portional band ser fexr Access heater power in secondary menu To order parts and items go to www lnstrumentation com or call 800 346 4620 6 Controller Operation Controller Configuration SEL Flashes SEC for secondary menu and then displays the A T 3 MEP Heater power in percent SET Access proportional band 3 Prof Flashes Pr oP and then displays the setting 3 4 1 3 Proportional band setting To change the proportional band press UP or DOWN 10 0 3 New proportional band setting To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new proportional band setting 6 10 Controller Configuration The c
39. obe diameters of 1 16 1 8 3 16 1 4 3 8 and 1 2 Insert B has six holes two of each that accept probe diameters of 3 16 1 4 and 3 8 Insert C has six holes cold or eight holes hot that accept probe diameters of 1 4 Insert D has six holes two that accept probe diameter of 3 mm two that ac cept probes of 4 mm diameter and two that accept probes of 6 mm diameter 15 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide Hot Block Insert A 1 16 1 6 mm 1 4 6 35 mm F Removable h 1 2 12 7 mm Insert Well A 1 45 37 mm I D 3 16 4 8 mm 1 8 3 2 mm 16 1 Il 4 8 mm Cold Block 3 2 mm Insert C 1 Il O 6 35 mm Removable Cold block insert shown Trai well Hot block C insert a SEIT includes eight 1 4 wells X 1 4 3 16 6 35 mm 4 8 mm Figure 3 Interchangeable Insert Options 16 3 8 9 5 mm 3 8 9 5 mm _ 4 l 1 4 6 35 mm SS To order parts and items go to www Instrumentation com or call 800 346 4620 5 General Operation Setting the Temperature 9 1 5 2 General Operation Setting the Temperature Section 6 2 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
40. of the instrument the serial port is not controlled by the hot side If ICL is displayed and control is desired from only the front panel press any button SET UP DOWN or EXIT to remove ICL from the display and control the instrument from the front panel buttons only This instrument has two controllers one for the hot side and one for the cold side The cold side controller acts as the master for the serial communications and the hot side controller acts as the slave The serial RS 232 interface parameters menu is indicated by SEriAL Serial RS 232 interface parameters menu Press SET to enter the menu The serial interface parameters menu contains parameters which determine the operation of the serial interface The parame ters in the menu are BAUD rate sample period duplex mode and linefeed Baud Rate cold side only The baud rate is the first parameter in the menu The baud rate setting deter mines the serial communications transmission rate The baud rate parameter is indicated by bAUG Flashes bf Ud for one second and then displays the setting 2400 b Current baud rate To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Serial Interface Parameters The baud rate of the serial communications may be programmed to 300 600 1200 2400 default 4800 or 9600 baud Use UP or DOWN to change the baud rat
41. ometer at several temperature throughout the range and ad justing the calibration parameters as necessary to reduce the errors to within ac ceptable limits The stated accuracy of the instrument can be found in the specification table in Section 2 1 Because of the way the calibration parame ters 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 cold side at each point respectively Follow these steps 1 If as found data is required first measure the error at various tempera tures 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 tempera ture allowing the block to reach the temperature and stabilize and read ing the actual temperature of the block with the standard thermometer If the measured errors are all within acceptable limits no further action is required and the remainder of this procedure is not necessary If the ac curacy needs to be improved continue with Step 2 2 Set 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 6 14 2 to make the block temperature as measured with the stan dard thermometer match the set point The approximate ratio between a change in RO and a change in temperature at 0 C is about 0 4 to 1 For example if the blo
42. ontroller has a number of configuration and operating options and calibra tion parameters which are programmable via the front panel These are ac cessed from the secondary menu after the proportional band function by pressing SET Pressing SET again enters the first of three sets of configu ration parameters operating parameters serial interface parameters and cali bration parameters The menus are selected using UP or DOWN and then pressing SET 6 11 Operating Parameters The operating parameters menu is indicated by PAr Operating parameters menu The operating parameters menu contains the High Limit parameter 6 12 High Limit The High Limit parameter adjusts the upper set point temperature The factory default and maximum are set to the instrument temperature limit For safety a user can adjust the High Limit down so the maximum temperature set point 1s restricted 29 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 6 13 6 13 1 30 To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new High Limit setting Serial Interface Parameters Note Both sides of the 9011 must be turned on within three seconds of one an other for the serial communications to function on the hot side If ICL is dis played on either the hot or the cold side
43. or call 800 346 4620 9011 Dual Well Calibrator User s Guide 6 13 4 6 14 32 Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu Linefeed cold side only The final parameter in the menu is the linefeed mode This parameter 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 3 LF Flashes for one second and then the serial linefeed setting EE RE cece kanpu 3 LF n Current linefeed setting Lreure New linefeed setting Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu Calibration Parameters The operator of the instrument controller has access to a number of the calibra tion constants namely the Hard Cutout RO ALPHA DELTA and BETA These values are set at the factory and must not be altered The correct values are important to the accuracy and proper and safe operation of the instrument Access to these parameters is available to the user so that in the event that the controller memory fails the user may restore these values to the factory set tings The user should have a list of these constants and their settings with the instrument manual A CAUTION DO NOT change the values of the instrument calibration con stants from the factory set values The cor
44. pe e Always replace the power cord with an approved cord of the correct rat ing and type e HIGH VOLTAGE is used in the operation of this equipment SEVERE INJURY or DEATH may result if personnel fail to observe safety precau tions Before working inside the equipment turn power off and discon nect power cord 1 3 2 A CAUTIONS e Always operate this instrument at room temperature between 41 F and 122 F 5 C to 50 C Allow sufficient air circulation by leaving at least 6 inches 15 cm of clearance around the instrument e Component lifetime can be shortened by continuous high temperature op eration e DO NOT apply any type of voltage to the display hold terminals Apply ing a voltage to the terminals may cause damage to the controller e DONOT use fluids to clean out the well Fluids could leak into electron ics and damage the instrument e Never introduce any foreign material into the probe hole of the insert Fluids etc can leak into the instrument causing damage e 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 e DO NOT slam the probe sheath in to the well This type of action can cause a shock to the sensor and affect the calibration e The instrument and any thermometer probes used with it are sensitive in struments that can be easily damaged Always handle these devices
45. rder parts and items go to www Instrumentation com or call 800 346 4620 4 Parts and Controls Rear Panel 4 Parts and Controls The user should become familiar with the dry well calibrator and its parts See Figures 1 2 and 3 4 1 Rear Panel Power Cord The removable power cord not shown attaches to the back side of the instrument It plugs into a standard 115 VAC optional 230 VAC grounded socket MADE IN USA cE A COLD SIDE HOT SIDE A G A 115VAC 50 60 Hz 4A T 250V A ESDON 115VAC 50 60 Hz 10A F 250V 230VAC 50 60 Hz 3 15A T 250V 230VAC 50 60 Hz 5A F 250V 325W 825W POWER 115V 50 60 Hz 230V 50 50 Hz 1150W Figure 1 Back Panel RS 232 The RS 232 serial port provides a means for connecting the instru ment to a computer or a printer using the included serial cable Fan The fans inside the instrument are controlled by the controller and vary in speed Slots at the top and bottom of the instrument are provided for airflow 13 To order parts and items go to or call 800 346 4620 9011 Dual Well Calibrator User s Guide The area around the calibrator must be kept clear to allow adequate ventilation The air is directed from the bottom to the top and may be hot Allow 6 inches of open space around the calibrator to allow adequate ventilation Fuse Holders On the rear panel are four user accessible fuse holders A WARNING Always leave enough clearance to allow for safe and easy
46. rect setting of these parameters is important to the safety proper operation and performance of the in strument The calibration parameters menu is accessed by pressing UP from the serial interface menu and is indicated by the following CAL Calibration parameters menu Press SET five times to enter the menu The calibration parameters menu contains the parameters Hard Cutout RO ALPHA DELTA and BETA that characterize the resistance temperature relationship of the platinum control sen sor These parameters may be adjusted to improve the accuracy of the calibrator To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Calibration Parameters The calibration parameters are accessed by pressing SET after the name of the parameter is displayed The value of the parameter may be changed using UP or DOWN After the desired value is reached press SET to set the parameter to the new value Pressing EXIT causes the parameter to be skipped ignoring any changes that may have been made 6 14 1 Hard Cutout hot side only This parameter is the temperature above which the unit shuts down automati cally and is only adjustable through the hot side The value of this parameter is set at the factory and cannot be changed by the user The hard cutout parameter is indicated by Cuk Out Flashes for one second and then the hard cutout setting is
47. ris loosened in the buffing process Periodic cleaning of the outside of the inserts ensures easy insertion and removal of the inserts from the well e The dry well calibrator should be handled with care Avoid knocking or dropping the calibrator e Do not slam the probe stems into the well This type of action can cause a shock to the sensor e Ifa 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 e 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 an Authorized Service Center see Section 1 4 for more information e Before using any cleaning or decontamination method except those rec ommended by Hart users should check with an Authorized Service Cen ter see Section 1 4 to be sure that the proposed method does not damage the equipment e 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 47 To order parts and items go to www Instrumentation com or call 800 346 4620 11 Troubleshooting 11 Troubleshooting This section contains information on troubleshooting CE Comments and a wiring diagram 11 1 Troubleshooting Problems Possible Causes and
48. rogram Pues 3 New number of program set points Press SET to continue Pressing EXIT causes any changes made to the pa rameter to be ignored To order parts and items go to www Instrumentation com or call 800 346 4620 6 Controller Operation Ramp and Soak Program Menu SET Save new setting 6 5 2 Set points The next parameters are the program set points 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 fexr Continue to next menu function 6 5 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 is maintained after settling before proceeding to the next set point The duration is counted from the time the temperature settles to within a specified stability PE 1I5 Soak time in minutes Press SET to continue SET Save new setting 6 5 4 Program Function Mode The next parameter 1s the program function or cycle mode There are four pos sible modes which determine whether the program scans up from set point 1 25 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 6 5 5 6 6 26 to n only or both up and down from set point n to 1 and also whether the program stops after one cycle or rep
49. rts and items go to www Instrumentation com or call 800 346 4620 3 Quick Start Unpacking 3 Quick Start 3 1 Unpacking Unpack the dry well carefully and inspect 1t for any damage that may have oc curred during shipment If there is shipping damage notify the carrier immediately Verify that the following components are present e 9011 Dry well e Power Cord e User s Guide with Report of Calibration e 2 inserts e Insert removal tool e RS 232 Cable e 9930 Interface it Software 3 2 Set up Place the calibrator on a flat surface with at least 6 inches of free space around the instrument Always leave enough clearance in front of the instrument to al low for safe and easy insertion and removal of probes Plug the power cord into a grounded mains outlet Observe that the nominal voltage corresponds to that indicated on the calibrator 3 3 Power Plug the instrument power cord into a mains outlet of the proper voltage fre quency and current capability Refer to Section 2 1 Specifications for the power details Turn on the power to the calibrator by toggling both power switches on within three seconds of each other The fans should begin blowing air through the in strument and both controller displays 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 A NOTE If more than three seconds elapse IEL
50. s u nits c f C orF Set temperature units to Celsius u nits c U C Set temperature units to u nits f sti Fahrenheit Read scan function sc an SC scan ON or OFF scan ON Set scan function sc an on of f ON or OFF Turn scan function on sc an on sc 0n Turn scan function off sc an 0f f sc of Read scan rate srlate sr srat 999 9 Cor srat 10 0 F min C min Set scan rate to n degrees per srlate n sr 5 0 1 to 50 C minute Read display temperature hold hm ode hm hmode AUTO hmode AUTO mode Read hold status ho ld ho ho closed or ho open open 9999 9 C or 75 0C F Read temperature temperature t t 9999 9 C or F t 55 69C Secondary Menu Read proportional band setting pr op band pr pb 999 99999 pb 15 9 Set proportional band to n pr op band n pr 8 83 Depends on Configuration Read cutout setting c utout C cu 9999 C or F cu 620 C in Read heater power po wer po po 9999 9 po 1 0 duty cycle Ramp and Soak Menu Read number of programmable pn pn pn 9 pn 2 set points Set number of programmable pn n pn 4 2to8 set points to n Read programmable set point psn ps3 psn 9999 99 Cor pst 50 00 C number n F Set programmable set point num psn n ps3 50 1 to 8 Instru ber nto n ment Range 40 To order parts and items go to www Instrumentation com or call 800 346 4620 7 Digital Communication Interface Interface Commands Controller Communications Commands continued
51. splay Units ovas edb esd ob dares 17 6 Controller Operation eesse ooo 19 6 1 Well Temperature 64 36 64544 24 daa 19 62 Temperature Set point ooo a Hew HR Gece 19 6 2 1 Programmable Set points ica A A 19 6 2 2 SPONE VIUS e asa rra teda keea t akaida A 2l 6 2 3 Temperature Scale Units oao 4 an Bede aa 21 6 3 SOU cu pesonas rasa ee ee ee Se 22 i To order parts and items go to www lnstrumentation com or call 800 346 4620 6 3 1 Scan Control ooa aa a 22 6 3 2 Scan Rate 6 ea Gees hei eo Pe eee eee eae eee ee 22 6 4 Temperature Display Hold ZZ 6 4 1 WIEN StAtUs 3 4445 4644 e842 Oa kG EA SAE As GY 23 6 4 2 Scan Holde 4 222 in dake Oe eee aa eA 23 6 5 Ramp and Soak Program Menu 24 6 5 1 Number of Program Set points lt a oaoa nc 1 44 24 6 5 2 SPO a e css a e aii ta a 25 6 5 3 Program Soak ME s aaae acd 6464 444 46 bho 4264 doo SD A 25 6 5 4 Program Function Mode s o e sas e rociar 25 6 5 5 ais 2 a6 eu ee eS IT 26 6 6 Set point Resistance xsee 2 a a o Peso ORS eS 26 6 7 Secondary Menu a dem eo ow we ew SEE ore Oe 27 6 8 Heater Power esoo cob ara 27 6 9 Proportional Band ese os beeen eon BOE See a Ee 28 6 10 Controller Configuration 0 0 29 6 11 Operate Parameters o s s 230060030506 RES BE OR ee ES 29 6 12 High Limit eke Oe eee Re Eee ewe eee 29 6 13 Serial Interface Parameters
52. the SET and DOWN buttons are released the temperature is again displayed 99 222 Current set point resistance setting is displayed PTETITITITI TTT ELLE 6 7 Secondary Menu Functions which are used less often are accessed within the secondary menu The secondary menu is accessed by pressing EXIT while holding down SET and then releasing both The first function in the secondary menu is the heater power display 6 8 Heater Power The temperature controller controls the temperature of the well by pulsing the heater on and off The total power being applied to the heater is determined by the duty cycle or the ratio of heater on time to the pulse cycle time By knowing the amount of heating the user can tell if the calibrator is heating up to the set point cooling down or controlling at a constant temperature Monitoring the percent heater power allows the user to know the stability of the well tem perature With good control stability the percent heating power should not fluc tuate more than 1 within one minute The heater power display is accessed in the secondary menu Press EXIT while holding down SET and then release both The heater power is dis played as a percentage of full power 3 SEL Flashes SEC for secondary menu and then displays the i lee A ie poe ic UP Heater power in percent To exit out of the secondary menu press EXIT To continue on to the propor tional band se
53. the user to degrees Celsius C or Fahrenheit F The units are used in displaying the well tem perature set point proportional band and high limit Press SET after adjusting the set point value to change display units Press SET to accept the new units or EXIT to cancel 21 To order parts and items go to www lnstrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 6 3 6 3 1 6 3 2 6 4 22 Scan The scan rate can be set and enabled so that when the set point is changed the dry well heats or cools at a specified rate degrees per minute until 1t reaches the new set point With the scan disabled the dry well heats or cools at the maximum possible rate Scan Control The scan 1s controlled with the scan on off function that appears in the main menu after the temperature scale units Sc 0FF 3 Current scan setting A TLE LEC Press SET to accept the present setting and continue SET Accept scan setting Scan Rate The scan rate can be set from 0 1 to 50 0 C min The maximum scan rate how ever is actually limited by the natural heating or cooling rate of the instrument This rate is often less than 50 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 Celsius per minute regardless of the selected units Press SET to accept the new scan rate and
54. tor User s Guide 6 5 6 5 1 24 changed states This feature allows for minimal block temperature scanning times and improved accuracy Example 2 With the instrument displaying 25 C set the set point to 100 C and enable the Scan Hold feature When the thermal switch changes states at 50 C the con troller automatically sets a new set point of 50 C and the status flashes either o orc Note There is a delay between the displayed temperature and the actual tem perature of the thermal switch To achieve better accuracy when the thermal switch is tripped the scan rate should be set for a slower time The slower the scan rate the more time required to perform a test The operator must determine the optimal scan rate for the specific application 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 gaol Well temperature scr T fur Access program menu Prob Program menu 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 p
55. trumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 1 2 Symbols Used Table 1 lists the International Electrical Symbols Some or all of these symbols may be used on the instrument or in this manual Table1 International Electrical Symbols Symbol Description Ne AC Alternating Current ING AC DC Battery fN fN 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 O gt l en Canadian Standards Association o T c D To order parts and items go to www lnstrumentation com or call 800 346 4620 1 Before You Start Safety Information Symbol Description OVERVOLTAGE Installation CATEGORY Il Pollution Degree 2 per IEC1010 1 re CATI fers to the level of Impulse Withstand Voltage protection provided Equipment of OVERVOLTAGE CATEGORY II is energy consuming equipment to be supplied from the fixed installation Examples include household office and laboratory appliances C TIC Australian EMC Mark The European Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC mark C E 1 3 Safety Information Use this instrument only as specified in this manual Otherwise the protection provided by the instrument may be impaired Refer to the safety information in the Warnings and Cautions sections below
56. tting function press SET 27 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide 6 9 28 Proportional Band In a proportional controller such as this the heater output power 1s 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 heater output is 100 At the top of the pro portional band the heater output is O to 100 hot side and 100 to 100 cold side Thus as the temperature rises the heater power is reduced which conse quently tends to lower the temperature back down In this way the temperature is maintained at a fairly constant temperature The temperature stability of the well and response time depend on the width of the proportional band If the band is too wide the well temperature deviates ex cessively from the set point due to varying external conditions This is because the power output changes very little with temperature and the controller cannot respond very well to changing conditions or noise in the system If the propor tional band is too narrow the temperature may swing back and forth because the controller overreacts to temperature variations For best control stability the proportional band must be set for the optimum width The proportional band width is set at the factory and pri
57. ture first select the set point memory This function is ac cessed from the temperature display function by pressing SET The number of the set point memory currently being used is shown at the left on the display followed by the current set point value OU D0OC Well temperature in degrees Celsius SUE 19 To order parts and items go to www Instrumentation com or call 800 346 4620 9011 Dual Well Calibrator User s Guide up Enable Switch Status DOWN gt gt Disable Switch Status AM F T 6 gt SET UP SET EXIT Units C F Scan On Off SET EXIT Display Power SET EXIT Program Function Mode SET EXIT EXIT Set Proportional Band SET EXIT Program Control ati SEVEN g Display Temperature SET y Number of Setpoints Select Setpoint SET Select Setpoint Secondary Functions SET Menu Legend Press SET to step through the menu and to store the parameter value Press EXIT briefly to skip a parameter without storing the parameter value Serial Interface Menu Operating Parameters Menu Hold EXIT 2 seconds to exit the menu and display the temperature x5 Be HL Hard s i eam E ald side on Hot side only o Adjust Baud Rate Select RO Adjust RO
58. urn to the beginning of the serial interface menu To order parts and items go to www Instrumentation com or call 800 346 4620 7 Digital Communication Interface Interface Commands 7 1 3 Serial Operation 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 inter face commands are discussed in Section 7 2 All commands are ASCII charac ter strings terminated with a carriage return character CR ASCII 13 7 2 Interface Commands The various commands for accessing the calibrator functions via the digital se rial interface are listed in this section see Table 2 beginning on page 40 These commands are used with the RS 232 serial interface The commands are termi nated with a carriage return character CR ASCII 13 The interface makes no distinction between upper and lower case letters hence either may be used Commands may be abbreviated to the minimum number of letters which deter mines 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 com mand following a character For example an s lt CR gt returns the current set point and s 50 0 lt CR gt sets the set point to 50 0 degrees In the following list of commands characters or data within brackets
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