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8 Calibration Procedure

8.2.3 Accuracy and Repeatability

Check the accuracy of the instrument at various points over the calibration range. If instrument

does not pass specification at all set-points, repeat the Calibration Procedure.

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Содержание 9132

Страница 1: ...Rev 672501 ENG 9132 Portable IR Calibrator User s Guide 1 888 610 7664 info Fluke Direct com Fluke Direct com...

Страница 2: ...f charge repair or replacement of a defective product which is returned to a Hart authorized service center within the warranty period To obtain warranty service contact your nearest Hart authorized s...

Страница 3: ...3 1 Unpacking 9 3 2 Set Up 9 3 3 Power 9 3 4 Setting the Temperature 9 4 Parts and Controls 11 4 1 Back Panel 11 4 2 Front Panel 12 5 General Operation 15 5 1 Changing Display Units 15 5 2 Switching t...

Страница 4: ...24 6 13 1 R0 24 6 13 2 ALPHA 24 6 13 3 DELTA 24 7 Digital Communications 25 7 1 Serial Communications 25 7 2 Wiring 25 7 2 1 Setup 25 7 2 2 Serial Operation 26 7 3 Interface Commands 26 8 Calibration...

Страница 5: ...10 2 2 Low Voltage Directive Safety 36 1 888 610 7664 info Fluke Direct com Fluke Direct com...

Страница 6: ...roved uncertainties a 0 125 external reference thermometer may be used in the cali bration probe hole at the top of the instrument When using an external reference thermometer the unit accuracy stabil...

Страница 7: ...scription AC Alternating Current AC DC Battery Complies with European Union directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Guide Important Informa...

Страница 8: ...the IR target surface of the unit The temperature of the IR target surface is the same as the actual temperature shown on the display If the unit is set at 500 C and the display reads 500 C the target...

Страница 9: ...ver replace the fuse with one of a higher current rating Follow all safety guidelines listed in the user s manual Calibration Equipment should only be used by Trained Personnel 1 3 2 CAUTIONS DO NOT p...

Страница 10: ...utes 500 C to 100 C Stabilization Time 10 minutes Target Emissivity 0 95 0 02 from 8 to 14 M Aperture Diameter 2 25 57mm Computer Interface RS 232 interface included with Model 9930 Interface it contr...

Страница 11: ...must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and cleaning recommendations can be found in the Mainte nance section of this...

Страница 12: ...the controller should begin normal operation If the unit fails to operate please check the power connection The heater will start operating to bring the temperature of the calibrator to the set point...

Страница 13: ...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 req...

Страница 14: ...r switch is located on the power entry module PEM The PEM also houses the fuses and the dual voltage selector The PEM and Heater Voltage Switch see below allow the unit to be field switchable for 115...

Страница 15: ...lay displays set and actual temperatures and various calibrator functions settings and constants The display shows temperatures in units according to the selected scale C or F Controller Keypad The fo...

Страница 16: ...EXIT Used to exit a function and to skip to the next function Any changes made to the dis played value are ignored Target Assembly The target assembly is 57 mm 2 25 in in diameter and has an emisivit...

Страница 17: ...V ac follow the steps below Unplug the instrument With a small straight slot screwdriver remove the fuse holder located on the rear panel Replace the two 4 amps fuses with 2 amp 250 V fuses Replace th...

Страница 18: ...played 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 the EXIT button 6 2 Temperature Set poi...

Страница 19: ...9132 Portable IR Calibrator User s Guide 18 Figure 4 Controller Operation Flowchart 1 888 610 7664 info Fluke Direct com Fluke Direct com...

Страница 20: ...cale 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 and propor tional ba...

Страница 21: ...d This value is used to calibrate the unit and is not adjustable 6 6 Temperature Scale Units To toggle between C and F press the SET and UP keys simultaneously when the tem perature is displayed 6 7 S...

Страница 22: ...iates excessively from the set point due to varying external conditions This is because the power output changes very little with tempera ture and the controller cannot respond very well to changing c...

Страница 23: ...ating parameters menu is indicated by par Operating parameters menu The operating parameters menu contains the High Limit parameter The High Limit parameter adjusts the upper set point temperature The...

Страница 24: ...l interface approximately every five seconds The automatic sampling is disabled with a sample period of 0 SPEr Flashes SPEr and then displays the setting SP 1 Current sample period seconds Adjust the...

Страница 25: ...Press SET five times to enter the menu The calibration parameters menu contains the param eters R0 ALPHA and DELTA which characterize the resistance temperature relationship of the platinum control se...

Страница 26: ...cable attaches to the calibrator through the D 9 connec tor at the back of the instrument Figure 5 shows the pin out of this connector and sug gested cable wiring The serial cable should be shielded...

Страница 27: ...the commands are executed but not echoed The default setting is full duplex The mode may be changed using UP or DOWN and pressing SET 7 2 1 4 Linefeed The final parameter in the serial interface menu...

Страница 28: ...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 al though upper case may be used Spaces may...

Страница 29: ...opband n pr 8 83 Depends on Configuration Read heater power duty cycle po wer po po 999 9 po 1 0 Configuration Menu Operating Parameters Menu Read high limit hl hl hl 999 hl 126 Set high limit hl n h...

Страница 30: ...tures the larger the calibrated temperature range is but the calibration error is greater over the range If for instance 150 C to 350 C is chosen as the cali bration range then the calibrator may achi...

Страница 31: ...measured temperature and resistance at 350 0 C 8 2 2 Compute R0 and ALPHA Where delta is the new value of DELTA computed above Program the new values for DELTA delta R0 rzero ALPHA alpha into the inst...

Страница 32: ...d Repeatability Check the accuracy of the instrument at various points over the calibration range If instrument does not pass specification at all set points repeat the Calibration Procedure 1 888 610...

Страница 33: ...andled with care Avoid knocking or dropping the calibrator 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 ar...

Страница 34: ...rmware version After performing the master reset sequence all of the configuration parameters are reset to their default values Reprogram the R0 ALPHA and DELTA parameters into the 9132 memory see Sec...

Страница 35: ...n of Conformity for your instrument lists the specific standards to which the unit was tested 11 2 2 10 2 2 Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 2...

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