Fluke Calibration Model 9100S Dry-Well Temperature
Contents
1. SET EXIT Scan On Off SET EXIT SET EXIT Zum S can SET EXIT EXIT 4 amp SET I Y Configuration Menu SET A A Menu Legend EXIT EXIT Press SET to step through the menu and Operating UP Seral UR to store the parameter value Cal KN oe gt meg Menu om Press EXIT briefly to skip a parameter SET 5 SET x5 without storing the parameter value l x E Hold EXIT 2 seconds to exit the menu m and display the temperature T fi Adjust o j jus I SET EXIT SET EXIT o SET EXIT E o Sample ES a Adj Sampl dt Adjust ALPHA SET EXIT SET EXIT Select DELTA Y Adj Duplex Mode I Em SET EXIT Adjust Linefeed SET EXIT TT Figure 5 Controller operation flow chart 21 9100S Dry Well Calibrator Set point Resistance 22 6 3 1 6 3 2 6 4 Scan Control The scan is controlled with the scan on off function that appears in the main menu after the temperature scale units Sc 5 c flashes for one second and then the current scan setting is displayed OFF Scan function off Press the up or down arrow to t2. Calibration 9100S Dry Well Calibrator Users Guide 9100S__ ugeng0000 Limited Warranty amp Limitation of Liability Each product from Fluke Corporation Fluke is warranted to be free from defects in material and workmanship under normal use and service The warranty period is one year for Dry Well Calibrators The warranty period begins on the date of the shipment Parts product repairs and services are warranted for 90 days The warranty extends only to the original buyer or end user customer of a Fluke authorized reseller and does not apply to fuses disposable batteries or to any other product which in Fluke s opinion has been misused altered neglected or damaged by accident or abnormal conditions of operation or handling Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non defective media Fluke does not warrant that software will be error free or operate without interruption Fluke does not warrant calibrations on the Field Metrology Well Fluke authorized resellers shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Warranty support is available if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price Fluke reserves the right to invoice Buy
3. 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 DELER Flashes for one second and then the DELTA setting is displayed 0 0000 Current DELTA setting To change the DELTA setting press the up or down arrows 0 1000 New DELTA setting To accept the new setting press SET Press EXIT to continue without storing the new value SET Accept the new DELTA setting 29 Digital Communication Interface RS 232 Connection 7 Digital Communication Interface 7 1 This instrument is capable of communicating with and being controlled by other equipment through the digital serial interface With a digital interface the instrument may be connected to 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 Communications commands are summarized in Table 2 on next page RS 232 Connection The three conductor jack for the serial port is located on the back of the instrument One serial cable is included Additional or longer cables of three meters or less can be constructed by following the wiring diagram shown in Figure Note The TxD line on one side connects to the RxD line on the other and
4. Controller Display The digital display is an important part of the temperature controller because it not only displays set and actual temperatures but also various calibrator functions settings and constants The display shows temperatures in units according to the selected scale C or F Controller Keypad The four button keypad allows easy setting of the set point temperature The control buttons SET V A and EXIT are used to set the calibrator temperature set point access and set other operating parameters and access and set calibration parameters FEL E A A 9100S Calibration P l V Figure 3 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 V down arrow Used to decrement the displayed value of parameters A up arrow Used to increment the displayed value EXIT Used to exit a function and to skip to the next function Any changes made to the displayed value are ignored Constant Temperature Block Assembly The Block is made of aluminum and provides a relatively constant and accurate temperature environment in which the sensor that is to be calibrated is inserted A high temperature platinum RTD imbe
5. available to the user so in the event the controller memory fails the user may restore these values to the factory settings The user should have a list of these constants and their settings with the instrument manual CAUTION DO NOT change the values of the instrument calibration constants from the factory set values The correct setting of these parameters is important to the safety proper operation and performance of the instrument The calibration parameters menu is indicated by CAL Calibration parameters menu Press SET five times to enter the menu The calibration parameters menu contains the parameters Hard Cutout RO ALPHA and DELTA which characterize the resistance temperature relationship of the platinum control sensor These parameters may be adjusted to improve the accuracy of the calibrator 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 the up or down arrow After the desired value is reached press SET to set the parameter to the 27 9100S Dry Well Calibrator Calibration Parameters 28 7 12 1 6 12 1 6 12 2 6 12 3 new value Pressing EXIT causes the parameter to be skipped ignoring any changes that may have been made Hard Cutout This parameter is the temperature above which the unit shuts down automatically The value of this parameter is set at the factory to approximate
6. Single Probe Insert the probe to be calibrated into the well of the instrument 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 bind in 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 adequate stabilization time to allow the test probe temperature to settle as described above Once the probe has settled to the temperature of the well it may be compared to the calibrator display temperature The display temperature should be stable to within 0 1 C degree for best results 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 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 well Stabilization and Accuracy The stabilization time of the instrument depends on the conditions and temperatures involved Typically the test well stabilizes to 0 1 C within 5 minutes of reaching the set point te
7. in dry wells designed for operation at 300 C and higher may result in fires and severe burns if safety precautions are not observed ELECTRICAL SHOCK DO NOT operate this instrument without a properly grounded properly polarized power cord Electric shock may result DO NOT connect this instrument to a non grounded non polarized outlet Ensure the earth ground to the outlet is properly connected Electrical shock may result if the outlet is not installed correctly Always replace the power cord with an approved cord of the correct rating and type HIGH VOLTAGE is used in the operation of this equipment SEVERE INJURY or DEATH may result if personnel fail to observe safety precautions Before working inside the equipment turn power off and disconnect power cord If supplied with user accessible fuses always replace the fuse with one of the same rating voltage and type 1 3 2 Cautions 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 Before You Start Authorized Service Centers cm of clearance around the instrument e Component lifetime can be shortened by continuous high temperature operation e 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 instrument causing damage e DO NOT change the values of the calibration co
8. minutes or so and then take a reading from the thermometer T Sample the set point resistance of the dry well R by holding down SET and pressing d Write these values down as T and R respectively 3 Repeat step 2 for the other two set points recording them as T and R and T and R respectively 4 Using this recorded data calculate new values for RO ALPHA and DELTA using the following formula 37 9100S Dry Well Calibrator Calibration Procedure 9 2 1 Compute DELTA A T T c a Fab ei A PAL Al AF BE delta DE CF where T and R are the measured temperature and set point resistance at 50 0 C T and R are the measured temperature and set point resistance at 200 0 C T and R are the measured temperature and set point resistance at 350 0 C 9 2 2 Compute RO and ALPHA T T a L dena i h m T T a T delta 1 100 100 Ra R rzero Dam TAN a a R R alpha 34 Ra delta is the new value of DELTA computed above Section 38 9 2 3 Calibration Procedure Calibration Procedure Program the new values for DELTA delta RO rzero and ALPHA alpha into the instrument see Section 6 12 Calibration Parameters on page 27 and Figure 5 on page 21 Accuracy and Repeatability Check the accuracy of the dry well at various points over the calibration range If dry well does not pass specification at all set poi
9. 999 r0 100 7 Set RO calibration parameter ton r 0 n r 100 7 95 0 to 105 0 Read ALPHA calibration al pha al al 9 99999999 al 0 003865 parameter Set ALPHA calibration parameter al phaj n al 0 003865 0 002 to 0 006 to n Read DELTA calibration parameter dellta de de 1 50 Set DELTA calibration parameter dellta n de 1 37 de 9 99999 0 3 0 Miscellaneous Other Commands Read firmware version number ver sion ver ver 9999x 9 99 ver 91005 1 01 Read structure of all commands bein h list of commands Read ALL operating parameters all all list of parameters Read setpoint resistance sr sr 999 999 ohms 110 023 ohms Legend Note Optional command data Returns either information n Numeric data supplied by user 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 33 8 1 8 2 8 2 1 Test Probe Calibration Dry well Characteristics Test Probe Calibration For optimum accuracy and stability allow the calibrator to warm up for 10 minutes after power up and then allow adequate stabilization time after reaching the set point temperature After completing operation of the calibrator allow the well to cool by setting the temperature to 25 C for one half hour before switching the power off Calibrating a
10. Fom alias 15 4 4 Constant Temperature Block Aesemfhy 15 5 General Operation rrrrnnnnnnnnnnnnnnnnnvnnnnnnnnnennnennnnennnnnnnnnnnnnnnnnnn 17 5 1 Setting the Temperaiure nn 17 5 2 Changing Display Units nennen 17 6 Controller Operation nnnnneenennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 19 6 1 Well Temperature usas ada 19 6 2 Temperature Set point sssssssssssse eee 19 6 2 1 Programmable Set points ooooconincccnoocccoooncccononccoonnnononnnnnonnnonoonnncnoonononinnciios 19 6 2 2 Setpoint Valle ee btt sed a mtb e 20 6 2 3 Temperature Scale Uhits canina a ta 20 9100S Dry Well Calibrator 63 1 Scam Cont muii da 22 63 2 Scan hall da 22 6 4 Set point Hesietance ro 22 6 5 Secondary Meninas dina leidas 23 6 6 Heater EE essen rc etre ne aaa rx La ce 23 6 7 Proportional Band 23 6 8 Controller Contiouration eene 24 6 9 Operating Parameters sssssssssssse nee 25 SA SOMIT e ear sees RP E LEM 25 6 11 Serial Interface Parameters ssssssssssssss eene 25 a WE RE 25 GAM Sample PEO BEE 26 6 11 39 Duplex Mode rn een ea ne ee ir 26 MISI A see ann 27 6 12 Calibration Parameters ssssssssesR eene 27 6 12 1 Hard e De TEE 28 6 12 22 om 28 6 12 3 ALPHA sa sen aaa aaa 28 6 12 4 DELTA ii eter eoe to cia e at eterne bnc ttes at da 29 7 Digital Communication Interface 31 TA AS22382 COMMECH OM s cete ne reete ini 31 7 2 Interfa
11. TIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT TORT RELIANCE OR ANY OTHER THEORY Since some countries or states do not allow limitation of the term of an implied warranty or exclusion or limitation of incidental or consequential damages the limitations and exclusions of this warranty may not apply to every buyer If any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction such holding will not affect the validity or enforceability of any other provision Fluke Corporation 799 E Utah Valley Drive e American Fork UT 84003 9775 e USA Phone 1 801 763 1600 e Telefax 1 801 763 1010 E mail support flukecal com www flukecal com Specifications subject to change without notice e Copyright 2005 e Printed in USA Table of Contents 1 Before You Start nen 1 US WEN To ee ele 0 E 1 1 2 Symbols WSOC unseren pue han d dens 1 1 3 Safety OIM MOM cit ana 3 1 31 Wanda odds 3 CH e A 1 4 Authorized Service Centers eee 5 2 Specifications and Environmental Conditions 9 e let EE 9 2 2 Environmental Conditions ssssssssssse eene 9 3 Quick Sia oe 11 cx EM VANT 11 E EE 11 3 3 POWE ereer ated vene a tte ei eo 11 3 4 Setting the Temperature 11 4 Parts and Controls eee curent nn 13 4 1 Rear Panel ettet nennen e e hingen 13 42 Side VIEW E dia 14 4 3
12. _ulnits c u c Set temperature units to u nits f u f Fahrenheit Read scan mode sc an sc sc ON or OFF sc ON Set scan mode sc an on off sc on ON or OFF Read scan rate sr ate sr srat 99 9 C or srat 12 4 C min F min Set scan rate sr ate n sr 1 1 0 1 to 99 9 C 0 2 to 179 8 F 32 Digital Communication Interface Interface Commands Command Command Returned Acceptable Command Description Format Example Returned Example Values Secondary Menu Read proportional band setting pr op band pr pb 999 9 pb 15 9 Set proportional band to n pr op band n pr 8 83 0 1 to 30 C 0 2 to 54 F Read heater power po wer po po 999 9 po 6 5 duty cycle Configuration Menu Operating Parameters Menu Read High Limit hi imit hl hl 9999 9 hl 375 0 Set High Limit hi imit n hl 300 125 0 to 375 0 C 257 0 to 707 F Serial Interface Menu Read serial sample setting sa mple sa sa 99999 sa 1 Set serial sampling setting to n sa mple n sa 0 0 to 10 000 seconds Set serial duplex mode du plex f ull FULL or HALF h alf Set serial duplex mode to full dulplex f ull du f Set serial duplex mode to half dulplex hlalf du h Set serial linefeed mode If eed on of f ON or OFF Set serial linefeed mode to op f eed on If on Set serial linefeed mode to off fleed ot f If of Calibration Menu Read RO calibration parameter r 0 f r0 999
13. any questions call a Fluke Authorized Service Center for more information Before using any cleaning or decontamination method except those recommended by Fluke users should check with an Authorized Service Center see Section 1 4 Authorized Service Centers on page 5 to be sure that the proposed method will not damage the equipment If the instrument is used in a manner not in accordance with the equipment design the operation of the dry well may be impaired or safety hazards may arise and the warranty may be voided 41 11 11 1 Troubleshooting Troubleshooting Problems Possible Causes and Solutions Troubleshooting This section contains information on troubleshooting CE Comments and a wiring diagram Troubleshooting Problems Possible Causes and Solutions In the event that the instrument appears to function abnormally this section may help to find and solve the problem Several possible problem conditions are described along with likely causes and solutions If a problem arises please read this section carefully and attempt to understand and solve the problem If the problem cannot otherwise be solved contact an Authorized Service Center see Section 1 4 Authorized Service Centers on page 5 for assistance Be sure to have the instrument s model number serial number voltage and problem description available Problem Possible Causes and Solutions Incorrect Incorrect RO ALPHA and DELTA parameters Find t
14. ature is changed the controller switches the well heater on or off to raise or lower the temperature The displayed well temperature gradually changes until it reaches the set point temperature The well may require 5 to 10 minutes to reach the set point depending on the span Another 5 to 10 minutes is required to stabilize within 0 1 C of the set point Ultimate stability may take 15 to 20 minutes more of stabilization time Parts and Controls Rear Panel 4 Parts and Controls 4 1 The user should become familiar with the dry well calibrator and its parts See Figures 1 2 and 3 Rear Panel Power Cord The removable power cord Figure I on this page attaches to the back side of the instrument It plugs into a standard 115 VAC optional 230 VAC grounded socket 115 VAC 55 Hz 65 Hz 175W 1 5A RS 232 IO USER SERVICEABLE PARTS COG MK o c N10140 291811 m Figure 1 Back Panel Power Switch The power switch is located on the back panel of the instrument The switch is either on or off The on position is for normal operation The off position disconnects power to the entire unit Fan The fan inside the instrument runs continuously when the unit is being operated to provide cooling to the instrument The fan has two speeds a slow speed for control operation and a faster speed for rapid cooling Slots at the top and around the corners of the instrument are provided for airflow The area around the calibrato
15. back to the device of origin With half duplex the commands are executed but not echoed The duplex mode parameter is indicated by dUPL Flashes for one second and then the serial duplex mode setting is displayed FULL Current duplex mode setting The mode may be changed using the up or down arrows A WV 6 11 4 6 12 A Controller Operation Calibration Parameters HALF New duplex mode setting Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu Linefeed The final parameter in the serial interface menu is the linefeed mode This parameter enables on or disables off transmission of a linefeed character LF ASCH 10 after transmission of any carriage return The linefeed parameter is indicated by LF Flashes for one second and then the serial linefeed setting is displayed On Current linefeed setting The mode may be changed using the up or down arrows u d OFF 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 calibration constants namely the Hard Cutout RO ALPHA and DELTA 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
16. band setting function press SET 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 bottom of the proportional band the heater output is 100 At the top of the proportional band the heater output is 0 Thus as the temperature rises the heater power is reduced which consequently tends 23 9100S Dry Well Calibrator Controller Configuration 24 6 8 to lower the temperature back down In this way the temperature is maintained at a fairly constant level 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 excessively 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 proportional band is too narrow the temperature may swing back and forth because the controller overreacts to temperature variations For best control stability the proportional band must be set for the optimum width The proportional band width is set at the factory and printed on the Report of Calibration The proportional band width may be altered by the user if desired to optimize the control
17. ce Commande 32 8 Test Probe Calibration e cccceeeeeeeenee 35 8 1 Calibrating a Single Probe eene 35 8 2 Dry well Characierlsttcs eene 35 8 2 1 Stabilization ahid ACCUFa6y sen err ertet e aid 35 9 Calibration Procedure dex cv n Ve tu 37 9 1 Calibration POMS estaca bp re t ba PO RR Y 37 9 2 Calibration Procedure emen 37 921 C mpute DELTA s inerenti toe um ea ee nee rendo 38 92 2 Compute RO ang ALPHA rare ae 38 923 Accuracy and Bee UE 39 10 Maintenance eT m 41 11 Troubleshooting cc ti anne nenn nenne 43 11 1 Troubleshooting Problems Possible Causes and Solutions 43 AR A EE 44 13 271 EMG Directive ameen ennir Ee ee 44 11 2 2 Low Voltage Directive Safety nenn 44 9100S Dry Well Calibrator Tables Table 1 International Electrical Symbols sssssssrnsrrnisriins 1 Table 2 Controller communications Commande 32 Figures Figure Back Panels assiette an en 13 Figure 2 Side view of the 9100S showing the prop stand 14 ls Deele 15 Figure 4 Fixed block options nn 16 Figure 5 Controller operation flow chat 21 Figure 6 Serial cable wiring ens 31 1 1 1 2 Before You Start Symbols Used Before You Start Introduction The Fluke 9100S Mid Range Field Calibrator may be used as a portable instrument or bench top temperature calibrator for calibrating thermocouple and RTD temperature probes This instrument is small enough to use in the field and accu
18. chapter discusses in detail how to operate the dry well temperature controller 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 controller proportional band and program the calibration parameters operating parameters and serial interface configuration Operation of the functions and parameters are shown in the flowchart in Figure 5 on page 21 This chart may be copied for reference In the following discussion a button with the word SET or EXIT inside or A and WY 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 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 100 0 C Well temperature in degrees Celsius The temperature display function may be accessed from any other function by pressing and holding the EXIT button Temperature Set point The temperature set point can be set to any value within the range and with resolution as given in the specifications Be careful not to exceed the safe upper temperature limit of any device inserted into th
19. 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 ES er Access heater power in secondary menu SEL Flashes SEL for secondary menu and then displays the heater power 12 0P Heater power in percent SET Access proportional band Prop Flashes Pr o P and then displays the setting H Proportional band setting To change the proportional band press A or W 18 0 New proportional band setting To accept the new setting press SET Press EXIT to continue without storing the new value SET Accept the new proportional band setting Controller Configuration The controller has a number of configuration and operating options and calibration parameters which are programmable via the front panel These are accessed from the secondary menu after the proportional band function by pressing SET Pressing SET again enters the first of three sets of configuration parameters operating 6 9 6 10 6 11 6 11 1 Controller Operation Serial Interface Parameters parameters serial interface parameters and calibration parameters The menus are selected using t
20. dded in the block assembly senses and controls 9100S Dry Well Calibrator Constant Temperature Block Assembly the temperature of the block The entire assembly is suspended in an air cooled chamber thermally isolated from the chassis and electronics WARNING The opening in front of the block may be very hot due to air blowing forward The constant temperature block is available in the following configurations Block A has six holes four that accept probe diameters of 1 4 5 32 1 8 and 1 16 and two that accept probes of 3 16 diameter to allow comparison calibrations Block B has four holes that accept probe diameters of 3 8 1 4 3 16 and 1 8 Block C has two holes that accept probe diameters of 3 16 and 1 2 Block D has six holes two that accept probe diameter of 3 mm two that accept probes of 4 mm diameter and two that accept probes of 6 mm diameter Surrounding the well opening are small ventilation holes which provide cooling to the instrument 91005 Fixed Block Options Block A Block B Block C ape Ur bin S i ge dee 3 8 9 5 3 16 48 1 8 3 2 mm 5 82 4 mm 28 5 mm en 1 2 12 7 mm omm 6 mm 3 16 4 8 mm 3 16 4 8 mm sis haa 3 16 4 8 mm 1 16 1 6 mm 1 4 64 mm mm 3 mm Figure 4 Fixed block options 16 5 5 1 5 2 General Operation Changing Display Units General Operation Setting the Temperature Section
21. durability and trouble free operation it must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and cleaning recommendations can be found in the Maintenance Section of this manual The instrument operates safely under the following conditions e temperature range 5 50 C 41 122 F e ambient relative humidity 15 50 e pressure 75kPa 106kPa e mains voltage within 10 of nominal e vibrations in the calibration environment should be minimized e altitudes less than 2000 meters e indoor use only 3 1 3 2 3 3 3 4 Quick Start Setting the Temperature Quick Start Unpacking Unpack the dry well carefully and inspect it for any damage that may have occurred during shipment If there is shipping damage notify the carrier immediately Verify that the following components are present e 9100S Dry well e Power Cord e User s Guide with Report of Calibration e RS 232 Cable e 9930 Interface it Software and User s Guide 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 allow for safe and easy insertion and removal of probes The prop stand may be swung down to raise the front of the instrument from a horizontal position Plug the power cord into a grounded mains outlet Observe that the nominal voltage corresponds to that indicated on th
22. e calibrator Turn on the power to the calibrator by toggling the power switch on The fan should begin quietly blowing air through the instrument and the 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 should show the well temperature and the well heater will bring the temperature of the well to the set point temperature 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 Power Plug the instrument power cord into a mains outlet of the proper voltage frequency and current capability Refer to Section 3 1 Specifications for the power details Turn the instrument on using the switch on the rear panel The instrument will turn on and begin to heat to the previously programmed temperature set point The front panel LED display will indicate the actual instrument temperature Setting the Temperature Section explains in detail how to set the temperature set point on the calibrator using the front panel keys The procedure is summarized here 1 Press SET twice to access the set point value 2 Press or W arrow to change the set point value 11 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 temper
23. e well Setting the temperature involves selecting the set point memory and adjusting 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 first select the set point memory This function is accessed from the temperature display function by pressing SET The number of the set point memory currently being used is shown at the left on the display followed by the current set point value 100 0 C Well temperature in degrees Celsius SET Access set point memory 6 2 2 6 2 3 6 3 100 Set point memory 1 location 100 C currently used To change to another set point memory press the up or down arrow H 300 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 Set point Value The set point value may be adjusted after selecting the set point memory and pressing SET 4 200 Set point 4 value in C If the set point value does not need to be changed press and hold EXIT to resume displaying the well temperature To change the set point value press SET and then press the up or down arrow eeb New set point value When the desired set point value is r
24. eached 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 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 temperature set point proportional band and high limit Press SET after adjusting the set point value to change display units Un t Scale units currently selected Press the up or down arrow to change the units Un F New units selected Press SET to accept the new units or EXIT to cancel Note The temperature scale units may also be changed by pressing SET and A when the temperature is displayed This action toggles the units between F and C 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 it reaches the new set point With the scan disabled the dry well heats or cools at the maximum possible rate Controller Operation Scan SET u Units C F Display Temperature Select Setpoint SET DOWN Set Point Resistance Adjust Setpoint SET EXIT Secondary Functions AA SET EXIT SET EXIT Units C F
25. er for importation costs of repairs replacement parts when product purchased in one country is submitted for repair in another country Fluke s warranty obligation is limited at Fluke s option to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period To obtain warranty service contact your nearest Fluke authorized service center or send the product with a description of the difficulty postage and insurance prepaid FOB Destination to the nearest Fluke authorized service center Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that the failure was caused by misuse alteration accident or abnormal condition or operation or handling Fluke will provide an estimate or repair costs and obtain authorization before commencing the work Following repair the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges FOB Shipping Point THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUEN
26. esistance setting is displayed deg Fraction portion of the current set point resistance setting The set point resistance is 99 222 Secondary Menu Functions which are used less often are accessed within the secondary menu The secondary menu is accessed by pressing SET and EXIT simultaneously and then releasing The first function in the secondary menu is the heater power display See Figure 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 temperature With good control stability the percent heating power should not fluctuate more than 1 within one minute The heater power display is accessed in the secondary menu Press SET and EXIT simultaneously and release The heater power is displayed as a percentage of full power 180 0 Well temperature Access heater power in secondary menu SEC Flashes SEC for secondary menu and then displays the heater power 12 0P Heater power in percent To exit out of the secondary menu press EXIT To continue on to the proportional
27. explains in detail how to set the temperature set point on the calibrator using the front panel keys The procedure is summarized here Press SET twice to access the set point value Press A or W to change the set point value LA N 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 temperature gradually changes until it reaches the set point temperature The well may require 5 to 10 minutes to reach the set point depending on the span Another 5 to 10 minutes is required to stabilize within 0 19C of the set point Ultimate stability may take 15 to 20 minutes more of stabilization time Changing Display Units This instrument can display temperature in Celsius or Fahrenheit The temperature units are shipped from the factory set to Celsius There are two ways to change to Fahrenheit or back to Celsius 5 Press the SET and A simultaneously The temperature display changes units or 6 Press the SET key three times from the temperature display to show Un 7 Press the A or W key to change units 8 Press SET to save the setting or EXIT to continue without changing the setting 6 6 1 6 2 6 2 1 Controller Operation Temperature Set point Controller Operation This
28. han those listed in the User s Guide Inspect the instrument for damage before each use DO NOT use the instrument ifit appears damaged or operates abnormally Follow all safety guidelines listed in the user s manual Calibration Equipment should only be used by Trained Personnel If this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired Before initial use or after transport or after storage in humid or semi humid 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 ofthe safety requirements 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 applying power such as storage in a low humidity temperature chamber operating at 50 degree centigrade for 4 hours or more DO NOT use this instrument for any application other than calibration work The instrument was designed for temperature calibration Any other use ofthe 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 acco
29. he up and down arrows and then pressing SET Operating Parameters The operating parameters menu is indicated by PAr Operating parameters menu The operating parameters menu contains the High Limit parameter High Limit The High Limit parameter adjusts the upper set point temperature The factory default and maximum are set to 375 C 707 F The minimum setting is 125 C 257 F For safety a user can adjust the High Limit down so the maximum temperature set point is restricted HL Flashes HL and then displays the setting 315 Flashes the current value and then displays the value for adjustment 315 Current High Limit setting Press the A or V to adjust the setting 300 New High Limit setting To accept the new setting press SET Press EXIT to continue without storing the new value SET Accept the new High Limit setting Serial Interface Parameters The serial RS 232 interface parameters menu is indicated by SErL 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 parameters in the menu are baud rate sample period duplex mode and linefeed Baud Rate The baud rate is the first parameter in the menu The baud rate setting determines the serial communications transmission rate The baud rate parameter is indicated by 25 9100S Dry Well Calibrator Serial I
30. he value for RO ALPHA temperature and DELTA on the Report of Calibration Reprogram the parameters into the reading instrument see Section 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 the SET and EXIT buttons down at the same time while powering up the instrument The instrument displays shows init the model number and the firmware version Each of the controller parameters and calibration constants must be reprogrammed The values can be found on the Report of Calibration The instrument Incorrect scan and scan rate settings The scan and scan rate settings may be set heats or cools to unwanted values Check the Scan and Scan Rate settings The scan may be too 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 The display Controller problem The error messages signify the fol
31. ion available e Model Number e Serial Number e Voltage e Complete description of the problem 2 2 1 2 2 Specifications and Environmental Conditions Environmental Conditions Specifications and Environmental Conditions Specifications Range 35 C to 375 C 95 F to 707 F Accuracy 0 25 C at 50 C 0 25 C at 100 C 0 5 C at 375 C Stability 0 07 C at 50 C 0 1 C at 100 C 0 3 C at 375 C Resolution 0 1 C or F Well to Well Uniformity 0 2 C with sensors of similar size at equal depths within wells Heating Times 35 to 375 C 9 5 minutes Stabilization 5 minutes Cooling Times 375 to 100 C 14 minutes Well Depth 4 inches 102 mm 1 16 inch 1 6 mm hole is 3 5 inches 89 mm deep Fixed Block Options See Section Constant Temperature Block Assembly on page and Figure on page Power 115 VAC 10 55 65 Hz 1 5 A or 230 VAC 10 0 8 A 45 55 Hz 175 W Size 2 25 H x 4 9 W x 6 1 D 57 mm x 125 mm x 150 mm Weight 2b 3 oz 1 08 Kg Safety Conforms to EN61010 1 Conforms to CAN CSA C22 2 No 1010 1 UL3111 and ANSI ISA S82 01 OVERVOLTAGE Installation CATEGORY Il Ploution Degree 2 per IEC1010 1 Fault Protection Sensor burnout protection over temperature cutout and electrical fuses Fuse Rating 250 V 3 A FF very fast acting NO USER SERVICEABLE PARTS Environmental Conditions Although the instrument has been designed for optimum
32. lowing problems with the shows any of the controller following Err I Err 1 a RAM error Err B Err 3 Err 2 a NVRAM error Err Vu Bre 5 Err 3 a Structure error Err B er Err 1 Err 4 an ADC setup error Err 5 an ADC ready error Err amp a defective control sensor Err 1 a heater error Initialize the system by performing the Factory Reset Sequence describe above Temperature Incorrect High Limit parameter The High Limit parameter may be set below cannot be set 375 C Check this value as described in Section 6 9 Operating Parameters on above a certain page 25 point 43 11 2 CE Comments 11 2 1 EMC Directive Fluke s equipment has been tested to meet the European Electromagnetic Compatibility Directive EMC Directive 89 336 EEC The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested 11 2 2 Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 23 EEC Fluke equipment has been designed to meet the IEC 1010 1 EN 61010 1 and the IEC 1010 2 010 EN 61010 2 010 standards
33. ly 400 C and cannot be changed by the user The hard cutout parameter is indicated by CE Dut Flashes for one second and then the hard cutout setting is displayed 400 0 Current hard cutout setting Press EXIT to continue to the next parameter 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 For values greater than 100 000 the display does not show the hundreds placement For values less than 100 000 the display shows the entire value The RO parameter is indicated by Wa Flashes for one second and then the RO setting is displayed 00 014 Current RO setting 100 014 To change the RO setting press the up or down arrows 99 599 New RO setting To accept the new setting press SET Press EXIT to continue without storing the new value SET Accept the new RO setting 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 ALPHA Flashes for one second and then the ALPHA setting is displayed 38530 Current ALPHA setting 6 12 4 Controller Operation Calibration Parameters To change the ALPHA setting press the up or down arrows 38600 New ALPHA setting To accept the new setting press SET Press EXIT to continue without storing the
34. mperature as indicated by the display Ultimate stability is achieved 10 to 20 minutes after reaching the set temperature Inserting a cold probe into a warm well requires another period of stabilizing depending on the magnitude of the disturbance and the required accuracy For example inserting a 0 25 inch diameter room temperature probe into a sleeve at 300 C takes 5 minutes to be within 0 3 C of its settled point and might take 10 minutes to achieve maximum stability Speeding up the calibration process can be accomplished by knowing how soon to make the measurement It is recommended that typical measurements be made at the desired temperatures with the desired test probes to establish these times 35 9 1 9 2 Calibration Procedure Calibration Procedure Calibration Procedure Note This procedure is to be considered a general guideline Each laboratory should write their own procedure based on their equipment and their quality program Each procedure should be accompanied by an uncertainty analysis also based on the laboratory s equipment and environment Sometimes the user may want to calibrate the dry well to improve the temperature set point accuracy Calibration is done by adjusting the controller probe calibration constants RO ALPHA and DELTA so that the temperature of the dry well as measured with a standard thermometer agrees more closely with the set point The thermometer used must be able to measure the well tempera
35. nstants 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 drop 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 instruments that can be easily damaged Always handle these devices with care DO NOT allow them to be dropped struck stressed or overheated e The Factory Reset Sequence see Section 11 Troubleshooting on page 43 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 care Always carry the instrument in an upright position to prevent the probe sleeves from dropping out e Ifa mains supply power fluctuation occurs immediately turn off the instrument Power bumps from brown outs could damage the instrument Wait until the power has stabilized before re energizing the instrument e The prop stand was not designed to be used as a handle for carrying
36. nterface Parameters 26 6 11 2 6 11 3 bRUd Flashes b U d for one second and then displays the setting eH00b Current baud rate The baud rate of the serial communications may be programmed to 300 600 1200 2400 default 4800 or 9600 baud Use the up or down arrows to change the baud rate value 4800 b New baud rate Press SET to accept the new setting 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 serial interface parameter menu 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 approximately every five seconds The automatic sampling is disabled with a sample period of 0 The sample period is indicated by SPEr Flashes for one second and then the serial sample period setting is displayed I Current sample period seconds Adjust the value by using the up or down arrows 4 W 50 New sample period Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu Duplex Mode The next parameter is the duplex mode The duplex mode may be set to full duplex or half duplex With full duplex any commands received by the calibrator via the serial interface are immediately echoed or transmitted
37. nts repeat the Calibration Procedure 39 Maintenance 10 Maintenance 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 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 foreign matter Do not use fluid to clean out the well 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 The dry well calibrator should be handled with care Avoid knocking or dropping the calibrator 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 responsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material If the mains supply cord becomes damaged replace it with a cord with the appropriate gauge wire for the current of the instrument If there are
38. oggle the scan on or off On Scan function on 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 99 9 C min The maximum scan rate however is actually limited by the natural heating or cooling rate of the instrument This rate is often less than 100 C 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 Sr Sr flashes for one second and then the current scan rate setting is displayed 0 1 Scan rate in C min Press the up or down arrow to change the scan rate d DU New scan rate Press SET to accept the new scan rate and continue SET Accept scan rate Set point Resistance This set point resistance is used in the calibration calculation of the instrument and is not adjustable Once the desired temperature has been reached and the controller is stable the set point resistance can be displayed by pressing SET and d simultaneously The set point resistance is displayed as follows SrES Sr E5 flashes for two seconds and then the whole number ofthe current set point resistance setting is displayed 6 5 6 6 6 7 Controller Operation Proportional Band 99 Whole number portion of the set point resistance flashes for two seconds and then the fraction portion of the current set point r
39. ower case letters hence either may be used Commands may be abbreviated to the minimum number of letters which determines a unique command A command may be used 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 returns the current set point and s 150 0 sets the set point to 150 0 degrees In the following list of commands characters or data within brackets 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 terminating CR ASCII 13 is implied with all commands Table 2 Controller communications commands Command Command Returned Acceptable Command Description Format Example Returned Example Values Display Temperature Read current set point s etpoint S set 9999 99 C set 150 00 C orF Set current set point to n s etpoint n s 350 Instrument Range or tlemperaturej n t 350 Read temperature t emperature t t 9999 9 C or F t 55 6C Read temperature units u nits u UX UC Set temperature units u nits c f CorF Set temperature units to Celsius
40. r must be kept clear to allow adequate ventilation The air is directed from the back to the front and may be hot Allow 6 inches of open space around the calibrator to allow adequate ventilation 9100S Dry Well Calibrator Side View RS 232 The RS 232 serial port provides a means for connecting the instrument to a computer or a printer using the included serial cable WARNING Always leave enough clearance in front of the calibrator to allow for safe and easy installation and removal of probes 4 2 Side View Prop Stand The prop stand Figure 2 on this page is located on the bottom side of the instrument and lays flat against the bottom of the instrument when not in use The prop stand can be swung down into a standing position when using the instrument at an inclined position Figure 2 Side view of the 9100S showing the prop stand CAUTION The prop stand was not designed to be used as a handle for carrying the instrument To avoid damage do not force the prop stand beyond the inclined position of the instrument 4 3 4 4 Parts and Controls Constant Temperature Block Assembly Front Panel Well Block Located on the right side of the front panel is the well opening where a block Figure designed to accept different probe sizes is installed Each block is designed to accept different diameter temperature sensors Four different blocks are available See Section Constant Temperature Block Assembly for details
41. rate enough to use in the lab Calibrations may be done over a range of 35 C to 375 C 95 F to 707 F Temperature display and setability resolution is 0 1 degrees The instrument features e Rapid heating and cooling e Prop stand e RS 232 interface capability Built in programmable features include e Temperature scan rate control e Fight set point memory e Adjustable readout in C or F The temperature is accurately controlled by Fluke s digital controller The controller uses a precision platinum RTD as a sensor and controls the well temperature with a triac driven heater The LED front panel continuously shows the current well temperature 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 operation Through proper use the instrument will provide continuous accurate calibration of temperature sensors and devices The user should be familiar with the safety guidelines and operating procedures of the calibrator as described in the instruction manual Symbols Used Table 1 lists the International Electrical Symbols Some or all ofthese symbols may be used on the instrument or in this manual Table 1 International Electrical Symbols Symbol Description ING AC Alternating Current 9100S D
42. rdance with the equipment design the operation of the dry well may be impaired or safety hazards may arise This instrument is intended for indoor use only 9100S Dry Well Calibrator Safety Information 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 temperature 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 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
43. ry Well Calibrator Symbols Used Symbol Description ING AC DC li Battery A mM Complies with European Union directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Guide Important Information Off oppoe1iba Canadian Standards Association o e Td c EI CAT II OVERVOLTAGE Installation CATEGORY II Ploution Degree 2 per IEC1010 1 CATI refers to the level of Impulsive 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 TICK Australian EMC mark Y The European Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC mark Before You Start Safety Information 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 1 3 1 The following definitions apply to the terms Warning and Caution Warning identifies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used Warnings To avoid personal injury follow these guidelines GENERAL DO NOT use this instrument in environments other t
44. the instrument To avoid damage do not force the prop stand beyond the incline positions of 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 Centers to coordinate service on your Fluke product Fluke Calibration 799 E Utah Valley Drive American Fork UT 84003 9775 USA 9100S Dry Well Calibrator Authorized Service Centers Phone 1 801 763 1600 Telefax 1 801 763 1010 E mail support flukecal com Fluke Nederland B V Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone 3 1 402 675300 Telefax 3 1 402 675321 E mail ServiceDesk fluke nl Fluke Int Corporation Service Center Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie Chao Yang District Beijing 100004 PRC CHINA Phone 86 10 6 5 12 3436 Telefax 86 10 6 5 12 3437 E mail xingye han fluke com cn Fluke South East Asia Pte Ltd Fluke ASEAN Regional Office Service Center 60 Alexandra Terrace 03 16 The Comtech Lobby D 118502 SINGAPORE Phone 65 6799 5588 Telefax 65 6799 5588 Before You Start Authorized Service Centers E mail antng singa fluke com When contacting these Service Centers for support please have the following informat
45. ture with higher accuracy than the desired accuracy of the dry well By using a good thermometer and following this procedure the dry well can be calibrated to an accuracy of better than 0 5 C over its full range Calibration Points In calibrating the dry well RO ALPHA and DELTA are adjusted to minimize the set point error at each of three different dry well temperatures Any three reasonably separated temperatures may be used for the calibration Improved results can be obtained for shorter ranges when using temperatures that are just within the most useful operating range of the dry well The farther apart the calibration temperatures the greater the calibrated temperature range However the calibration error is also greater over the range For instance if 150 C to 350 C is chosen as the calibration range the calibrator may achieve an accuracy of say 0 3 C over the range 150 C to 350 C Choosing a range of 200 C to 300 C may allow the calibrator to have a better accuracy of maybe 0 2 C over the range 175 C to 325 C but outside that range the accuracy may be only 0 5 C Calibration Procedure 1 Choose three set points to use in the calibration of the RO ALPHA and DELTA parameters These set points are generally 50 0 C 200 C and 350 0 C but other set points may be used if desired or necessary 2 Set the dry well to the lowest set point When the dry well reaches the set point and the display is stable wait 15
46. vice versa To reduce the possibility of electrical interference the serial cable should be shielded with low resistance between the connector and the shield and should not be much longer than is necessary The protocol for serial communications is 8 data bits 1 stop bit and no parity Use no flow control Set the linefeed to ON all carriage returns are followed by a linefeed ASCII decimal 10 and the duplex to HALF disabling echo 7 GND GND RD D I nl Bal Figure 6 Serial cable wiring 9100S Dry Well Calibrator Interface Commands The serial port can be used to transmit measurements to a computer or printer or to change settings of the instrument from a computer A full list of commands follows in Section Commands sent to the instrument must end with an EOS character which is a carriage return CR ASCII 13 or linefeed character LF ASCII 10 Commands can be sent with upper or lower case letters Data returned from the instrument ends with a carriage return If the linefeed setting is on a linefeed character is also sent afer the carriage return 7 2 Interface Commands The various commands for accessing the calibrator functions via the digital interface are listed in this section see Table These commands are used with the RS 232 serial interface The commands are terminated with a carriage return character CR ASCII 13 The interface makes no distinction between upper and l
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