Fluke Calibration Model 9102S Dry-Well Temperature
Contents
1. SET EXIT Sample Period Select ALPHA DO NOT CHANGE THESE VALUES URL Adjust ALPHA SET EXIT SEENT Select DELTA Adj Duplex Mode ljust DELTA B 0 SET EXIT Y Linefeed Adjust Linefeed SET EXIT SET EXIT Figure 4 Controller operation flowchart 20 6 2 2 6 2 3 Controller Operation Temperature Set point To change to another set point memory press the up or down arrow 450 New set point memory 4 location 50 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 50 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 50 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 Temperature Scale Units The temperature scale units of the controller maybe2. GND GND Ro 100 Figure 5 Serial Cable Wiring 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 7 2 Interface Commands on page 32 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 end with a carriage return If the linefeed setting is on a linefeed is also sent after the carriage return 91025 Dry Well Calibrator Interface Commands 7 2 Interface Commands The various commands for accessing the calibrator functions via the digital interface are listed in this section see Table 4 on this page 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 distinction between upper and lower case letters hence either may be used Commands may be abbreviated to the minimum number of letters which determines a unique command A command may be used 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 120 0 sets the set point
3. To exit out of the secondary menu press EXIT To continue on to the proportional band setting function press SET 23 91025 Dry Well Calibrator Proportional Band 6 7 24 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 to lower the temperature back down In this way the temperature is maintained at a 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 tempera ture variations For best control stability the proportional band must be set for the optimum width The proportional band width is set at the factory as printed on the Report of Calibra tion The proporti
4. A strap is provided to aid the user in carrying the instrument in one hand Slide your hand into position and secure using the Velcro for a tight fit Be careful when carrying the instrument while using the strap as inserts can fall out of the wells when tipped forward Inspect the strap periodically for wear Well Block Located on the middle of the front panel are the well openings where probes may be inserted into the well The block is designed to accept temperature sensors up to 1 2 12 7 mm in diameter The wells can be made to accept probes of smaller than 1 2 12 7 mm diameter by using optional inserts Probes should fit snugly into the wells for best results Controller Display The digital display is an important part of the temperature controller because it not only displays set and actual temperatures but also indicates various calibrator functions settings and constants The display shows temperatures in units according to the selected scale C or F 4 3 Parts and Controls Accessories Controller Keypad The four button keypad allows easy setting of the set point temperature The control buttons SET W A and EXIT are used to set the calibrator temperature set point access and set other operating parameters and access and set calibration parameters Setting the control temperature is done directly in degrees of the current scale It can be set to one tenth of a degree Celsius or Fahrenheit The functions of the
5. Scan Rate settings The scan may be quickly or too slowly off if the unit seems to be responding too quickly The scan may be on with the Scan Rate set low if unit seems to be responding too slowly 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 shows Controller problem The error messages signify the following problems with the an error code controller Err 1 a RAM error Err 2 NVRAM error Err 3 a Structure error Err an ADC setup error Err 5 an ADC ready error Err amp defective control sensor 1 a heater error Initialize the system by performing the Factory Reset Sequence describe above Temperature cannot Incorrect High Limit parameter The High Limit parameter may be set below 125 C be set above a Check this value as described in Section 6 9 Operating Parameters on page 25 certain point Display is reading The instrument was turned off at high temperatures and reenergized too quickly incorrectly Turn the instrument off until the display is completely off and then reenergize Display flickers This is normal operation and is more prevalent at high temperatures due to when the Seebeck Coefficient of the thermoelectric cooling device
6. buttons are as follows SET Used to display the next parameter in the menu and to store parameters to the displayed value W 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 Accessories The table below lists optional inserts carrying case and battery packs by model number Table 3 Accessories Model Description 3102 0 Blank Insert 3102 1 1 16 1 6 mm Insert 3102 2 1 8 3 2 mm Insert 3102 8 5 32 4 0 mm Insert 3102 3 3 16 4 8 mm Insert 3102 4 1 4 6 4 mm Insert 3102 5 5 16 7 9 mm Insert 3102 6 3 8 9 5 mm Insert 3102 7 7 16 11 1 mm Insert 9308 Rugged Carrying Case 9320A Battery Pack Call your local Fluke representative for current pricing 15 5 1 5 2 General Operation Changing Display Units General Operation Setting the Temperature Section 6 2 Temperature Set point on page 19 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 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
7. conductor DC power plug such as Switchcraft PN 760 Observe the correct polarity as shown in Figure The outside conductor is positive and the inside is negative The AC power switch on the rear panel does not switch the DC power Figure 1 12 V DC Power Source Polarity The optional Model 9320A Battery Pack available from Fluke can be used as a por table power source Setting the Temperature Section 6 2 Temperature Set point on page 19 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 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 temperature gradu ally 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 The user should become familiar with the dry well calibrator and its parts See Figure 2 on this page and Figure 3 on n
8. 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 precautions are not observed A fire may occur if a short circuit occurs along the input cord and no protective devices are on the DC input source For short circuit protection using a battery a fuse is required at the battery terminals 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 Before You Start Safety Information 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 BATTERY PACK To avoid the risk of electric shock o
9. 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 min utes to reach the set point depending on the span Another 5 to 10 minutes is required to stabilize within 0 05 C of the set point Ultimate stability may take 15 to 20 min utes 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 1 Press the SET and simultaneously The temperature display changes units or 1 Press the SET key three times from the temperature display to show 2 Press the W key to change units 3 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 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 or monitor the heater output power adjust the controller proportional band and program the calibration parameters operating parameters and serial interface confi
10. the well The dry well calibrator should be handled with care Avoid knocking or dropping the calibrator Do not drop 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 any questions call an Authorized Service Center see Section 1 4 Authorized Service Centers on page 6 for more information Before using any cleaning or decontamination method except those recommended by Fluke users should check with an Authorized Service Center 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 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 conditi
11. 4 Controller operation flowchart 2 1 20 Figure 5 Serial Cable Wiring 1 22 2222 2 31 1 1 Before You Start Introduction Before You Start Introduction The Fluke Calibration 9102S Mid Range Field Calibrator is a small portable instru ment designed for quick on site checks and calibration of thermocouple and RTD temperature probes This instrument is small enough to use in the field and accurate enough to use in the lab Calibrations may be done over a range of 10 C to 122 C 14 F to 252 F Temperature display and setpoint resolution are 0 1 degrees The instrument features e A controlled temperature block with two calibration insert sleeves e Rapid heating and cooling e Prop stand e Handle strap e RS 232 interface capability e 12 Volt DC battery option 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 Fluke s digital controller The control ler uses a precision platinum RTD as a sensor and controls the well temperature with transistor driven thermoelectric devices The LED front panel 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 designe
12. A iiit petite dd 28 6 123 DE TA asia 29 Digital Communication Interface 31 7 1 RS 232 31 72 Intertace Comtiands e cte e tte tnde 32 8 Test Probe Calibration ums 35 8 1 Calibrating a Single Probe 35 8 2 Dry well 5 35 8 2 1 Stabilization and Accuracy 35 9 Calibration 37 Calibration delas 37 9 2 Calibration Procedure emen 37 921 COMPUTE DELTA verneint 37 9 2 2 Compute RO ana ALPHA nina nn 38 9 2 3 Accuracy and rene aan 39 10 Malntenance uscar 41 11 Troubleshooting 43 11 1 Troubleshooting Problems Possible Causes and Solutions 11 2 CE Comments 11 2 1 Directive 11 2 2 Low Voltage Directive Safety 91025 Dry Well Calibrator Tables Table 1 International Electrical Sympols used on products Table 2 Specifications Table Table 4 Controller communications commands Figures Figure 1 12 V DC Power Source Polarity 12 Figure 2 Back 13 Figure 9 14 Figure
13. Calibration 9102S Dry Well Calibrator Users Guide 91025 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 Buyer f
14. L 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 compe tent jurisdiction such holding will not affect the validity or enforceability of any other provision Fluke Corporation 799 Utah Valley Drive American Fork UT 84003 9775 USA Phone 1 801 763 1600 Telefax 1 801 763 1010 E mail support hartscientific com www hartscientific com Specifications subject to change without notice e Copyright 2005 Printed in USA Table of Contents 1 Before You Start ica 1 1 1 AMOUR er 1 1 2 en Recreate scene ee ee ee 2 ER 3 AN a ts 3 5 1 4 Authorized Service Centers 6 2 Specifications and Environmental Conditions 9 2 1 ado 9 2 2 Environmental 2 2 02022 2 2 7 050 9 3 Quick Sia ica 11 A Gs ee ee ee ee 11 32 ee 11 3 3 AC Power ODSratioi deer d ati 11 3 4 DC Power 12 3 5 Setting the 2 12 4 Parts and Control usin
15. LTA 9 2 1 Compute DELTA A T T 37 91025 Dry Well Calibrator Calibration Procedure Fol F R f AF BE delta DE CF T Measured temperature using thermometer R Value of set point resistance from the instrument display Press SET and at the same time where T and R are the measured temperature and set point resistance at 2 0 C 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 100 0 C 9 2 2 Compute RO and ALPHA a T delta EU jc 100 100 T T a T delta 1 100 100 _ rzero a R alpha delta is the new value of DELTA computed above Program the new values for DELTA delta RO rzero and ALPHA alpha into the dry well using the following steps 38 Calibration Procedure Calibration Procedure 5 Press SET and EXIT at the same time Press SET until PAR is displayed and then press until A L is displayed 6 Press SET five times to enter the menu 7 Press SET and W until the correct numerical setting is displayed Press SET to accept the new value 8 Repeat step 3 for ALPHA and DELTA 9 Press EXIT to show the displayed temperature 9 2 3 Accuracy and Repeatability Check the a
16. a 13 do Po tte nhe teen acts 13 42 a 14 43 ACCESOO ui 15 5 General 1 10 17 5 1 Setting the 2 125 1 2 2 00 0 00 17 52 Changing Display 17 6 Controller 19 Well Temperature usas 19 6 2 Temperature Set point 2 2 2 2 19 6 2 1 Programmable Set points 22 299 9 19 6 2 2 Setpoint Valle 5a rec ias 21 6 2 3 Temperature Scale Units canina atada 21 91025 Dry Well Calibrator 63 1 Scan Cont muii Einhalt 22 6 32 Scan Tee Aa Tee 22 6 4 Set point 8 22 6 5 secondary Meninas dina leidas 23 6 6 O essen aan aaa rx en 23 6 7 Proportional 9999 24 6 8 Controller Configuratio M se irinenn eee 25 6 9 Operating Parameters 25 SA le A RP E LEM 25 6 11 Serial Interface Parameters 25 6 11 Baud Rale einer 26 GAM Sample Ped iii 26 6 11 39 Duplex Mode rn en en 26 MISI en 27 6 12 Calibration Parameters 27 mL EEUU 28 6 12 2 ALPH
17. acy 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 Flashes for one second and then the RO setting is displayed 86 8 14 Current RO setting 100 014 To change the RO setting press the up or down arrows 39 999 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 To change the ALPHA setting press the up or down arrows 28500 New ALPHA setting To accept the new setting press SET Press EXIT to continue without storing the new value SET Accept the new ALPHA setting 6 12 3 DELTA This probe parameter characterizes the curvature of the resistance temperature rela tionship of the sensor The value of this parameter is set at the factory for best instru ment 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 se
18. akes 7 minutes to be within 0 05 C of its settled point and might take 15 minutes to achieve maximum stability Speeding up the calibration process can be accomplished by knowing how soon to make the measurement It is recommended that typical measurements be made at the desired temperatures with the desired test probes to establish these times 35 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 calibra tion 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 temperature 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 25 C over its full range 9 1 Calibration Points In calibrating the dry well RO ALPHA and DELTA are adjusted to minimize the set point error at each of three different d
19. ccuracy of the dry well at various points over the calibration range If dry well does not pass specification at all set points 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 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 below 0 C Use emery cloth or other similar material to clean the outside of the inserts Ensure that the inserts are wiped clean of any debris loosened in the buffing process Periodic cleaning of the outside of the inserts ensures easy insertion and removal of the inserts from
20. 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 2 0 New scan rate Press SET to accept the new scan rate and continue Press EXIT to cancel SET Accept scan rate 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 temperature This value is not directly adjustable but is recalculated when the set point temperature is 6 5 6 6 Controller Operation Heater Power changed The set point resistance is used to perform a calibration adjustment using the Callendar Van Dusen R versus T curve fit see Section Calibration Procedure The instrument must be at temperature and stable prior to taking the set point resis tance reading The set point resistance can be displayed by pressing the SET and W simultaneously The set point resistance is displayed as follows SrES 5 ES flashes for two seconds and then the whole number of the current set point resistance setting is displayed 99 Whole number portion of the set point
21. d for portability low cost and ease of operation Through proper use and maintenance 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 described in the instruc tion manual 91025 Dry Well Calibrator Symbols 1 2 Symbols Table 1 lists the International Electrical Symbols Some or all of these symbols may be used on the instrument or in this manual Table 1 International Electrical Sympols used on products Symbol Description ING AC Alternating Current ING AC DC Battery Complies with European Union directives N f DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Guide Important Information Off On Canadian Standards Association yy Before You Start Safety Information Symbol Description The European Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC mark C TICK Australian EMC mark 1 3 Safety Information Use this instrument only as specified in this manual Otherwise the protection provid ed 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 conditio
22. ds received by the calibrator via the serial interface are immediately echoed or transmitted back to the device of origin With half duplex the commands are executed but not echoed The duplex mode parameter is indicated by dUPL Flashes for one second and then the serial duplex mode setting is displayed 6 11 4 6 12 Controller Operation Calibration Parameters FULL Current duplex mode setting The mode may be changed using the up or down arrows HRLF 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 ASCII 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 Gn Current linefeed setting The mode may be changed using the up or down arrows 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 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 pro
23. er in the menu The baud rate setting determines the serial communications transmission rate The baud rate parameter is indicated by bRUd Flashes bua for one second and then displays the setting eH00b Current baud rate The BAUD rate ofthe 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 trans mitted 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 Current sample period seconds Adjust the value by using the up or down arrows 60 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 comman
24. ext page 4 1 Rear Panel Power Cord The removable power cord Figure attaches to the back side of the instrument It plugs into a standard 115 VAC optional 230 VAC grounded socket O UN POWER 94 234 V 50 60 Hz Figure 2 Back Panel DC Power Jack The calibrator can be used with a DC power source The DC input jack requires 12V and 3 3 amps See Figure and the inset of Figure for pinout 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 instrument utilizes a variable speed fan Under certain circumstances the fan may turn off The fan shuts off at 100 C and above Slots at the top and around the 13 91025 Dry Well Calibrator Front Panel corners of the instrument are provided for airflow The area around the calibrator must be kept clear to allow for adequate ventilation The air is directed from the front to the back Allow 6 inches of open space around the calibrator to allow adequate ventilation 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 Front Panel 91025 Calibration Figure 3 Front Panel Strap
25. guration Operation of the functions and parameters are shown in the flowchart in Figure 4 on next page This chart may be copied for reference In the following discussion a button with the word SET or EXIT inside a A W indicates the panel button while the dotted box indicates the display reading Explana tions 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 Well temperature in degrees Celsius The temperature display function may be accessed from any other function by holding and releasing 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 the 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 quick ly 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 acces
26. ions 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 3 1 3 2 3 3 Quick Start AC Power Operation 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 91025 Dry well e Power Cord e User s Guide with Report of Calibration e RS 232 Cable e 9930 Interface it Software e 3102 3 Insert 3 16 e 3102 4 Insert 1 4 e Insert Removal Tool 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 the calibrator Turn on the power to the calibrator by toggling the power switch on The fan should begin quietly blowing air through the ins
27. l band setting pr op band pr pb 999 99999 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 duty cycle po wer po po 999 9 po 6 5 Configuration Menu Operating Parameters Menu Read High Limit hl imit hl hl 9999 hl 125 Set High Limit hl imit n hl 100 50 to 125 C 122 to 257 F 32 Digital Communication Interface Interface Commands Command Command Returned Acceptable Command Description Format Example Returned Example Values Serial Interface Menu Read serial sample setting sa mple sa sa 99999 sa 1 Set serial sampling setting to n seconds sa mple n sa 0 0 to 10 000 Set serial duplex mode du plex f ull FULL or HALF h alf Set serial duplex mode to full du plex f ull du f Set serial duplex mode to half du plex h alf du h Set serial linefeed mode If eed on of f ON or OFF Set serial linefeed mode to on Iffeed on If on Set serial linefeed mode to off Iffeed of f If of Calibration Menu Read RO calibration parameter 10 0 999 999 100 7 Set RO calibration parameter to r 0 n r 100 7 95 0 to 105 0 Read ALPHA calibration parameter al pha al al 9 99999999 al 0 003865 Set ALPHA calibration parameter to n al pha n al 0 003865 0 002 to 0 006 Read DELTA calibration parameter dellta de de 1 50 Set DELTA calibration parameter de 1 37 de 9 99999 0 0 3 0 Miscellaneous O
28. m the factory set values The correct setting of these parameters is important to the safety and proper operation of the calibrator 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 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 The Factory Reset Sequence see Section Troubleshooting should be performed only by authorized personnel if no other action is successful in 91025 Dry Well Calibrator Authorized Service Centers 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 falling out The convenient handle strap allows for one hand carrying 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 energi
29. nded operation is not recommended 91025 Dry Well Calibrator Safety Information 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 equipment design the operation of the dry well may be impaired or safety hazards 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 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
30. ns and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used A WARNINGS To avoid personal injury follow these guidelines GENERAL DO NOT use this instrument in environments other than those listed in the User s Guide Inspect the instrument for damage before each use DO NOT use the instrument if it 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 of the 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 of the instrument may cause unknown hazards to the user Completely unatte
31. nserted 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 05 C degree for best results CAUTION Never allow foreign material into the wells 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 05 C within 7 minutes of reaching the set point temperature as indicated by the display Ultimate stability is achieved 10 to 20 minutes after reaching the set temperature Depending on the magnitude of the disturbance and the required accuracy inserting a cold probe into a warm well will require another stabilization period For example inserting a 0 25 inch diameter room temperature probe into a sleeve at 120 C t
32. onal 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 pro portional 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 ser exr Access heater power in secondary menu SEL Flashes SEC for secondary menu and then displays the heater power 12 0P Heater power in percent SET Access proportional band Prop Flashes prop and then displays the setting 1 Proportional band setting To change the proportional band press A or W 10 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 6 8 6 9 6 10 6 11 Controller Operation Serial Interface Parameters 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 parameters serial in
33. ons 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 6 for assistance Be sure to have the model number serial number voltage and problem description available Problem Possible Causes and Solutions Incorrect Incorrect RO ALPHA and DELTA parameters Find the value for RO ALPHA temperature reading and DELTA on the Report of Calibration Reprogram the parameters into the 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 see Section 6 12 Calibration Parameters on page 27 The instrument Incorrect scan and scan rate settings The scan and scan rate settings may be set heats or cools too to unwanted values Check the Scan and
34. or 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 au thorized 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 OTH ER 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 CONSEQUENTIA
35. per 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 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 con tains 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 27 6 12 1 6 12 2 The calibration parameters are accessed by pressing SET after the name of the pa rameter 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 new value Pressing EXIT causes the parameter to be skipped ignoring any changes that may have been made 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 accur
36. pport please have the following infor mation available e Model Number e Serial Number e Voltage e Complete description of the problem Specifications and Environmental Conditions Environmental Conditions 2 Specifications and Environmental Conditions 2 1 2 2 Specifications Table 2 Specifications Range 10 to 122 C 14 F to 252 F at an ambient of 23 C Accuracy 0 25 C Stability 0 05 C Resolution 0 1 C or F Well to Well 0 2 C with sensors of similar size at equal depths within wells Uniformity Heating Times ambient to 100 C 10 minutes Stabilization 7 minutes Cooling Times ambient to 0 C 10 minutes Well Depth 4 inches 102 mm Removable Inserts refer to Section Accessories Power 94 234 VAC 10 50 60 Hz 50 W or 12 VDC Size 4 Hx 6 W x 6 9 D 100 mm x 152 mm x 175 mm Weight 4 Ib 1 8 Kg Safety Conforms to EN61010 1 Conforms to CAN CSA C22 2 No 1010 1 UL3111 and ANSI ISA S82 01 Fault Protection Sensor burnout protection over temperature cutout and electrical fuses Fuse Rating 250 V 3A FF very fast acting NO USER SERVICEABLE PARTS Environmental Conditions Although the instrument has been designed for optimum durability and trouble free operation it must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and cleaning recommendat
37. r fire do not use the charger outdoors or in a dusty dirty or wet environment If the cord case or plug of the charger is damaged in any way discontinue its use immediately and have it replaced Never disassemble the charger The battery may contain chemicals that are hazardous To avoid the risk of exposure to dangerous substances or explosion immediately discontinue use of the battery if it leaks or becomes damaged Never allow the battery to be shorted heated punctured dropped or crushed Store the battery where it will not come into contact with metal or fluids that might short circuit the battery and where it will be safe from excessive temperatures When no longer usable the battery must be recycled The battery may be returned to the seller for recycling Do not dispose of the battery in a landfill Never dispose of the battery in fire as there is danger of explosion which may cause injury or property damage 13 2 A 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 cm of clearance around the instrument Component lifetime can be shortened by continuous high temperature operation DO NOT use fluids to clean out the well Never introduce any foreign material into the probe hole of the insert Fluids etc can leak into the instrument causing damage DO NOT change the values of the calibration constants fro
38. resistance flashes for two seconds and then the fraction portion of the current set point resistance setting is displayed ioc 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 5 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 SEL Flashes SEC for secondary menu and then displays the heater power 12 0P Heater power in percent
39. ry well temperatures Any three reasonably separated temperatures may be used for the calibration Improved results can be ob tained 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 10 C to 100 C is chosen as the calibration range the calibrator may achieve an accuracy of 0 25 over the range 10 C to 100 C Choos ing a range of 50 C to 100 C may allow the calibrator to have a better accuracy of maybe 0 2 C over the range 75 C to 105 C but outside that range the accuracy may be only 0 25 9 2 Calibration Procedure 1 Choose three set points to use in the calibration of the RO ALPHA and DELTA parameters These set points are generally 2 C 50 C and 100 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 minutes or so and then take a reading from the thermometer Sample the set point resistance by holding down SET and pressing the W 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 the recorded data calculate new values for the RO ALPHA and DE
40. s Some time is required instrument is turned to fully discharge the switching power supply and to complete the power off cycle off 43 91025 Dry Well Calibrator CE Comments 44 11 2 11 2 1 11 2 2 Problem Possible Causes and Solutions The instrument The specifications for the instrument include an ambient temperature of 23 C does not reach If the ambient temperature is above 23 C the instrument may not be able to temperature reach the lowest specified temperature Check the ambient temperature if the instrument does not reach maximum temperature CE Comments EMC Directive Fluke s equipment has been tested to meet the European Electromagnetic Compatibil ity Directive EMC Directive 89 336 EEC The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 23 EEC Fluke equipment has been designed to meet the IEC 1010 1 EN 61010 1 and the 1010 2 010 EN 61010 2 010 standards
41. sed 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 cur rent set point value 100 0 C Well temperature in degrees Celsius SET Access set point memory 100 Set point memory 1 location 100 C currently used 91025 Dry Well Calibrator Temperature Set point Display Temperature SET Select Setpoint 4 SE DOWN SET EXIT Y Set Point Resistance Adjust Setpoint SEVEN Secondary Functions Y gt sr Bu Units C F I SET EXIT ME Scan On Off EN SEL ENT Y Y Set Proportional Band Scan Rate ds SEVEN Configuration Menu SET EXIT Menu Legend Operating Serial Press SET to step through the menu and Parameters a Interface TOW al to store the parameter value lenu lenu lt 3H st 5 Press EXIT briefly to skip a parameter Y without storing the parameter value HL Select RO Hold EXIT 2 seconds to exit the menu ond display the temperature Adjust BAUD Rate T SET ERIT SET EXIT 5 Adjust RO oth
42. 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 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 21 91025 Dry Well Calibrator Scan 22 6 3 6 3 1 6 3 2 6 4 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 is controlled with the scan on off function that appears in the main menu after the temperature scale units Sc Sc flashes for one second and then the current scan setting is displayed Scan function off Press the up or down arrow to toggle the scan on or off On Scan function on Press SET to accept the present setting and continue Press EXIT to cancel 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
43. terface parameters and calibration parameters The menus are selected using the 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 125 C 257 F The minimum setting is 50 C 122 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 125 Flashes the current value and then displays the value for adjustment 125 Current High Limit setting Press the A to adjust the setting 100 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 param eters which determine the operation of the serial interface The parameters in the menu are baud rate sample period duplex mode and linefeed 25 91025 Dry Well Calibrator Serial Interface Parameters 26 6 11 1 6 11 2 6 11 3 Baud Rate The baud rate is the first paramet
44. ther Commands Read firmware version number ver sion ver ver 9999x 9 99 ver 9102S 1 10 Read structure of all commands h elp h list of commands Read ALL operating parameters all all list of parameters Read set point er sr 999 999 ohms 100 123 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 set ting the temperature to 25 C for one half hour before switching the power off Calibrating a 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 jam into the sleeve Best results are obtained with the probe inserted to the full depth of the well Once the probe is i
45. to 120 0 degrees In the following list of commands characters or data within brackets J 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 carriage return CR ASCII 13 is implied with all commands Table 4 Controller communications commands Command Command Returned Acceptable Command Description Format Example Returned Example Values Display Temperature Read current set point s etpoint 5 set 999 99 set 75 00 or F Set current set point to n s etpoint n s 100 10 to 122 C 1 100 14 to 252 F Read temperature t emperature t t 999 9 CorF t55 6C Read temperature units u nits u Set temperature units ulnits c f CorF Set temperature units to Celsius u nits 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 Cor 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 Secondary Menu Read proportiona
46. trument 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 check the power connection The display should show the well temperature and the well heater will bring the tem perature 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 AC Power Operation Plug the dry well 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 dry well on using the switch on the rear panel The dry well will turn on and begin to heat to the previously programmed temperature set point The front panel LED display will indicate the actual dry well temperature 11 91025 Dry Well Calibrator DC Power Operation 3 4 A 3 5 DC Power Operation This instrument is equipped with a DC power option The DC option requires a power source that delivers 12 VDC at 3 amps WARNING A fire may occur if a short circuit occurs along the input cord and no protective devices are on the DC input source For short circuit protection using a battery a fuse is required at the battery terminals The DC power socket is located on the rear panel of the instrument near the AC power jack The instrument accepts a 7 32 inch diameter two
47. tting press SET Press EXIT to continue without storing the new value SET Accept the new DELTA setting 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 tempera ture and access any of the other controller functions all using remote communications equipment Communications commands are summarized in Table 4 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 5 on this page Note The TxD line on one side connects to the RxD line on the other and 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 LF ASCII 10 and the duplex to HALF disabling echo gt
48. zing the instrument e 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 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 Corporation 799 E Utah Valley Drive American Fork UT 84003 9775 USA Phone 1 801 763 1600 Telefax 1 801 763 1010 E mail supportOhartscientific com Fluke Nederland B V Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone 31 402 675300 Telefax 31 402 675321 Before You Start Authorized Service Centers 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 E mail antng singa fluke com When contacting these Service Centers for su
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