Omega CL940A Скачать руководство пользователя страница 35 | Manualshive

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Service Information

4-21

Statement of Calibration

This instrument has been inspected and tested in accordance with
specifications published by OMEGA, Inc.

OMEGA, Inc. certifies the above listed instrument has been inspected and
calibrated and meets or exceeds all published specifications and has been
calibrated using standards whose accuracies are traceable to the
International System of Units (SI) through the National Institute of
Standards and Technology (NIST) or other recognized National Metrology
Institutes.

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Содержание CL940A

Страница 1: ...CL940A CL945A Digital Temperature Calibrator Thermometer TM e mail info omega com For latest product manuals www omegamanual info Shop online at omega comSM User sGuide ...

Страница 2: ...ddlewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U Industrial pH Conductivity Equipment DATA ACQUISITION M U Communications Based Acquisition Systems M U Data Logging Systems M U Wireless Sensors Transmitters Receivers M U Signal Conditioners M U Data Acquisition So...

Страница 3: ...4 View Modes and Statistics 3 6 Auto Power Off 3 7 Backlight and Backlight Timeout 3 8 Operating Modes 3 8 Trend Indicators 3 9 Battery Indicator 3 9 Probe Offset 3 9 Open Lead Detection Enable Disable 3 11 Clear Function 3 11 Presets Save Recall and Erase 3 12 Invalid Measurement Indications 3 13 4 Service Information 4 14 Inspection and Cleaning 4 14 Calibration 4 14 Troubleshooting 4 19 Diagnos...

Страница 4: ...ed Conformity ITS 90 Types B E J K N R S T EN 60584 1 2013 Type C ASTM E988 Table 3 Type D ASTM E1751 5 1 1 Type G DIN 43710 Types L and U ASTM E1751 5 1 2 Type P Temperature Ranges C Range C K 230 C 1372 C 382 F 2502 F 230 to 160 1 2 to 0 6 160 to 90 0 5 to 0 4 90 to 380 0 3 380 to 665 0 2 665 to 1372 0 3 J 200 C 1200 C 328 F 2192 F 200 to 160 0 7 to 0 5 160 to 110 0 4 110 to 10 0 3 10 to 1200 0 ...

Страница 5: ... 1300 0 2 R2 15 C 1768 C 5 F 3214 F 15 to 100 1 2 to 0 8 100 to 240 0 7 240 to 495 0 6 495 to 1768 0 5 S2 20 C 1768 C 4 F 3214 F 20 to 75 1 2 to 0 9 75 to 150 0 8 150 to 285 0 7 285 to 1768 0 6 G2 100 C 2315 C 212 F 4199 F 100 to 240 1 0 to 0 6 240 to 310 0 5 310 to 460 0 4 460 to 2315 0 3 C2 0 C 2315 C 32 F 4199 F 0 to 60 0 5 60 to 2200 0 4 2200 to 2315 0 5 D2 0 C 2315 C 32 F 4199 F 0 to 100 0 6 ...

Страница 6: ...rate minus sign decimal indicators with offset thermocouple types KJTEBNRSGCDPLU battery source read temperature units voltage units percent trend PRST 0 19 MIN MAX AVG RNG STDEV Transfer symbols Fast Ramp Slow Ramp Step Bluetooth Statistics Minimum Reading Maximum Reading Average Reading Reading Range Standard Deviation Display Backlight Four 4 LED Backlight with 30 second timeout Display Resolut...

Страница 7: ...m to Concrete Compliance Electrical CE MIL PRF 28800F Class 2 Compliance Substances RoHS 2 Directive 2011 65 EU Compliant REACH Electrical Safety IEC 61010 EMC EN 61326 MIL PRF 28800F Class 2 ESD IEC 61326 Criterion B Sanitation NSF ANSI 3 1 14159 2 Standards MIL PRF 28800F Class 2 Temperature Coefficient For specification variances due to ambient operating temperature see the Expanded Instrument ...

Страница 8: ...EGA Family of Thermometers Thermocouple Thermometers HH911T Thermocouple Thermometer Single Input HH912T Thermocouple Thermometer Dual Input Data Thermometers HH931T Data Thermometer Single Input HH932T Data Thermometer Dual Input ...

Страница 9: ...especially the sections on safety prior to operating these instruments Feature Overview 0 01 0 1 display resolution Internal storage for 20 presets 500 hour battery life3 Five 5 digit dual LCD with LED Backlight Simultaneous Source Measure Comprehensive real time statistics MIN MAX AVG RNG and STDEV Easy to clean Probe offset function to minimize probe error F C and mV temperature and voltage unit...

Страница 10: ...is instrument if the housing probe wiring probe or probe handle are damaged or distorted Housings and wire insulation are part of the personnel protection system and if damaged could expose users to elevated potentials EXPLOSION HAZARD Never use or store this product with batteries installed or change batteries in an environment where explosive or flammable vapors or dust suspensions may exist For...

Страница 11: ...ormal thermocouple voltage for the selected range Excessive input voltage could result in blown fuse component damage or fire Application of excessive voltage is not covered by the warranty Avoid making sharp bends in probe or sensor lead wires Bending lead wires at sharp angles can damage the wire and cause probe failure When using both thermometer inputs and a voltage differential exists between...

Страница 12: ...mpting to install or remove the batteries CAUTION Always turn the instrument off and disconnect any input connections before replacing the batteries Re install the battery compartment cover before resuming use of the instrument CAUTION The battery compartment is sealed with a rubber gasket Use care to not damage the gasket when removing or installing the battery compartment cover CAUTION Remove th...

Страница 13: ... Section 2 5 Battery Installation and Replacement 2 The instrument will initially display every segment on the LCD for 2 seconds as a test An internal hardware memory and battery self test is performed during this time 3 Upon completing the internal tests the instrument will immediately display the Source and Read mode last user settings and battery indicator 4 Set the desired measurement paramete...

Страница 14: ...ove to the next parameter f Read Channel 2 offset value is flashing on the display If the temperature probe s offset value is known press to set the Channel 2 probe offset to the probe s offset value See Section 3 10 Probe Offset for more information g Momentarily press to save your selection and move to Open Lead Detection press to toggle on off h Momentarily press to save your selection and move...

Страница 15: ...er Current Source Channel reading MIN MAX AVG RNG STDEV While in Setup Menu save changes and exit menu While displaying Cold Junction Compensation CJC reading toggles between CJC 1 and CJC 2 1 5s Displays Cold Junction Compensation CJC readings The 10 90 key toggles between 10 and 90 of span The first press of the key goes to 10 The 0 25 key manually increments the output by 25 of the defined span...

Страница 16: ...Each press of the View key after that displays the active statistic result and its corresponding label below See Figure 3 below for further description of each display indicator 1 OFFSET is applicable to Reading in Line 2 2 Source Channel 5 digit display 3 The active thermocouple type 4 Remaining battery life 5 Temperature units 6 Active Digit Indicator 7 milliVolt designation 8 Read Channel 5 dig...

Страница 17: ...s from 0 C to Span and then back to 0 C The ramp rate is 50 C per second 20 Displays the number of the current 20 possible presets 0 19 21 PRST Preset is active Each preset value includes Source Value TC Type no TC type if in mV Units Mode Span 0 and 100 and preset number 22 Trend Indicators Read channel 23 Minus sign Read channel 24 Read channel Label 25 Minus sign Source channel 26 Source channe...

Страница 18: ...uration is saved and the instrument will exit the Setup Menu Figure 5 lists the user definable parameters and the available values for each parameter To set a parameter value 1 Press 1 5s to enter the Setup Menu 2 Press to cycle through parameters as shown in Figure 6 until the desired parameter is reached 3 To change the value of the current parameter press or 4 To save the current parameter valu...

Страница 19: ...rature and voltage Units C F mV Probe Offset 0 1 increments Open Lead detection old On Off Source SourC On Off If on Set Span Set 100 Level Set 0 Level If on Set Mode Manual blinking __ __ __ __ Fast Ramp Slow Ramp Step Transfer SETUP MENU CHOICES FOR MV PARAMETER AVAILABLE VALUES Thermocouple Type6 K J T E 5 Temperature and voltage Units C F mV Probe Offset 0 1mV increments Open Lead detection ol...

Страница 20: ...5mV If on Set Mode Manual blinking __ __ __ __ Fast Ramp Slow Ramp Step Transfer 7 Low range is for calibration verification only Figure 5 VIEW MODE DISPLAY INDICATOR DESCRIPTION Minimum MIN Minimum temperature recorded during current session Maximum MAX Maximum temperature recorded during current session Average AVG Average of all temperatures recorded during current session Range RNG Maximum min...

Страница 21: ...tes the current Source Channel value regardless of which view mode statistic is currently displayed MODEL SOURCE CHANNEL STATISTIC VIEW SEQUENCE CL940A CL945A Value from source channel MIN MAX AVG RNG STDEV Figure 7 Statistics Sequence If the instrument records invalid measurement data during the statistics session such as an over range under range or open input value will be displayed for each af...

Страница 22: ...ture or millivoltage from 0 of span to 100 of span and back to 0 of span in 20 seconds This repeats until stopped Any other key press will stop the output at the existing value temperature or millivoltage and clear the fast ramp setting Slow Ramp Instrument Ramps the output temperature or millivoltage from 0 of span to 100 of span and back to 0 of span in 120 seconds This repeats until stopped Any...

Страница 23: ... data After battery replacement set measurement parameters as required The battery voltage indicator provides a visual representation of approximate remaining battery life It is located at the top right of the display The battery voltage indicator uses three bars to represent remaining battery life Figure 9 shows the approximate battery life for each bar At zero 0 bars the instrument will display ...

Страница 24: ...currently selected digit until the displayed temperature equals the known temperature reference value Press to change the digit place 8 Press to save the offset value and proceed to Open lead detection or press to save the offset value and exit the Setup Menu a Alternatively to disregard the new offset value and exit the Setup Menu press 9 OFFSET is displayed at the top left of the LCD display To ...

Страница 25: ...powered off If no thermocouple probe is connected and Open Lead Detection is disabled the unit will not indicate OPEn and may display erratic readings To change the Open Lead Detection setting 1 Press 1 5s to enter the Setup Menu 2 Press three 3 times to cycle to the Open Lead Detection parameter a OLd is displayed on Line 1 of the LCD and the current Open Lead Detection status is displayed on Lin...

Страница 26: ...et Press the 1 5s The preset number will start flashing Use the to move to the preset number location you want to use to store the current operating options Press the The current operating options are now saved in the chosen preset location and the flashing stops To recall a preset Press the button PRST will begin to flash Use the to move to the desired saved preset 0 19 When the desired preset is...

Страница 27: ...tic is invalid as shown in Figure 10 below INDICATION DESCRIPTION O rnG The current measurement or statistic is over range for the selected thermocouple type Also Instrument is in mV mode old is off and Source is off Those settings can lead to an Over range display U rnG The current measurement or statistic is under range for the selected thermocouple type OPEn No probe is connected or the probe s...

Страница 28: ...h or towel Calibration 4 2 1 Verification Procedure The voltage calibration of the instrument can be verified by checking the mV points noted in Figure 12 below A Digital Multi Meter with suitable accuracy9 is needed along with a set of Copper mini TC male connectors with good quality low thermals wire The wire cannot be tinned 1 This procedure shall be performed within environmental conditions of...

Страница 29: ...f the Source and Read channels to the positive input of the DMM Connect the negative of the Source and Read channels to the negative input of the DMM 8 By using the and or keys adjust the instrument Source to match each value in Figure 12 in the High range notating the result from the DMM on the Instrument Verification Data Sheet Appendix C in Source DC Volts Channel 1 Measurement Result and Measu...

Страница 30: ...the limits of error by adding subtracting the value noted in the Tolerance column to the value of the Standard column for each setpoint A PASS result is any Measurement Result value that is equal to or in between the Lower Limit and Upper Limit error numbers 13 To verify the Cold Junction Compensation CJC of the Source Channel 1 and Read Channel 2 14 Place the CL940A in a Controlled Environment10 ...

Страница 31: ... Customers performing CJC adjustments in their facility will need to calculate their own uncertainty For best results the instrument keypad is the only part of the instrument that should be touched after the acclimation period inside the controlled environment The temperature sensor should not be touched 1 This procedure shall be performed within environmental conditions of 23 1 C and 5 to 95 RH 2...

Страница 32: ...t Alignment 8 The UUT display will indicate as follows a Line 1 10 000 b Line 2 CAL 1 The instrument is now sourcing 10 000 mV 9 By using the and or keys adjust the instrument to match as close as possible the DMM display voltage Use the key to save the settings and advance to CAL 2 Repeat this step to and including CAL 10 10 CAL 11 and CAL 12 are used to set the Cold Junction Compensation CJC of ...

Страница 33: ... or keys adjust the instrument to the calibration technician ID Select a value from 0 99999 for the calibration technician ID and press to save and exit Troubleshooting OMEGA s digital handheld thermometers are designed and built to provide years of uninterrupted use In the event the instrument malfunctions or does not perform as expected helpful troubleshooting tips are provided below Figure 14 b...

Страница 34: ... other short circuit is plugged into the Source Channel during startup Remove the shorting device Be sure thermocouple is plugged into the Read Channel not Source Figure 16 Common Troubleshooting Issues Diagnostic Routines and Error Codes The instrument momentarily activates all display annunciators and segments during startup to allow for visual inspection of the LCD Observe the LCD and verify al...

Страница 35: ...MEGA Inc certifies the above listed instrument has been inspected and calibrated and meets or exceeds all published specifications and has been calibrated using standards whose accuracies are traceable to the International System of Units SI through the National Institute of Standards and Technology NIST or other recognized National Metrology Institutes ...

Страница 36: ...Mini TC Cable NOTE This process requires a set of COPPER mini TC connectors with good quality low thermals wire These cannot be tinned 2 Copper Mini TC Cables required for Voltage Gain and Offset alignment only This cable does not require calibration See Figure 11 above One end shall be terminated with a male miniature copper thermocouple connector for connection to the UUT The opposite end shall ...

Страница 37: ...Appendices B i B EXPANDED INSTRUMENT UNCERTAINTIES All uncertainty specifications for all charts are K 2 unless otherwise noted ...

Страница 38: ...Appendices B ii Following graphs show total uncertainty in degrees C k 2 with operating condition between 18 28 C unless otherwise noted ...

Страница 39: ...Appendices B iii Thermocouple Type K ...

Страница 40: ...Appendices B iv ...

Страница 41: ...Appendices B v Thermocouple Type J ...

Страница 42: ...Appendices B vi ...

Страница 43: ...Appendices B vii Thermocouple Type T ...

Страница 44: ...Appendices B viii ...

Страница 45: ...Appendices B ix Thermocouple Type E ...

Страница 46: ...Appendices B x ...

Страница 47: ...1 0000 1 2000 1 4000 1 6000 400 436 472 508 544 580 616 652 688 724 760 796 832 868 904 940 976 1012 1048 1084 1120 1156 1192 1228 1264 1300 1336 1372 1408 1444 1480 1516 1552 1588 1624 1660 1696 1732 1768 1804 18C 28C 20C Temp Uncertainty C k 2 55C Temp Uncertainty C k 2 ...

Страница 48: ...Appendices B xii ...

Страница 49: ...0 8000 1 0000 1 2000 1 4000 1 6000 1 8000 2 0000 270 229 188 147 106 65 24 17 58 99 140 181 222 263 304 345 386 427 468 509 550 591 632 673 714 755 796 837 878 919 960 1001 1042 1083 1124 1165 1206 1247 1288 18C 28C 20 Temp Uncertainty C k 2 55 Temp Uncertainty C k 2 ...

Страница 50: ...Appendices B xiv ...

Страница 51: ...Appendices B xv Thermocouple Type R ...

Страница 52: ...Appendices B xvi ...

Страница 53: ...Appendices B xvii Thermocouple Type S ...

Страница 54: ...Appendices B xviii ...

Страница 55: ...Appendices B xix Thermocouple Type G ...

Страница 56: ...Appendices B xx ...

Страница 57: ...Appendices B xxi Thermocouple Type C ...

Страница 58: ...Appendices B xxii ...

Страница 59: ...Appendices B xxiii Thermocouple Type D ...

Страница 60: ...Appendices B xxiv ...

Страница 61: ...Appendices B xxv Thermocouple Type P ...

Страница 62: ...Appendices B xxvi ...

Страница 63: ...Appendices B xxvii Thermocouple Type L ...

Страница 64: ...Appendices B xxviii ...

Страница 65: ...Appendices B xxix Thermocouple Type U ...

Страница 66: ... 99502 mV 0 00194 mV 10 mV 10 mV 10 00498 mV 9 99502 mV 0 00192 mV 0 mV 0 mV 0 0046 mV 0 0046 mV 0 0019 mV 10 mV 10 mV 9 99511 mV 10 00489 mV 0 00192 mV 30 mV 30 mV 29 99455 mV 10 00545 mV 0 0021 mV 33 mV 33 mV 32 99446 mV 30 00554 mV 0 00214 mV PARAMETER STANDARD MEASUREMENT RESULT TOLERANCE LIMITS OF ERROR EXPANDED1 UNCERTAINTY PASS FAIL LOWER LIMIT UPPER LIMIT Measure DC Volts Channel 2 The val...

Страница 67: ...h channel Calculate your Limits of Error by first add a factory determined offset of 0 06 C to the Standard value then add subtract 0 11 C from the result to determine upper lower limits See section 4 2 1 paragraph 15 for an example calculation 1 C C 2 C C 1 The estimated expanded uncertainties are based on a standard uncertainty multiplied by a coverage factor K 2 providing a level of confidence ...

Страница 68: ... otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on human...

Страница 69: ...ns without notice Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Canada only Engineering Service 1 800 872 9436 USA Canada only Tel 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide omega com info omega com M5725 0219 CL940A Rev A ...

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