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Summary of Contents for Sigma 2008B Series
- Page 1 Sigma 2008B SERIAL DIGITAL CONDUCTIVITY METER OPERATING INSTRUCTIONS Xiamen Tianyan Instrument Co. , Ltd.
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Page 2: Table Of Contents
CONTENTS 一、 APPLICABILITY AND FEATURES ............. 1 二、 TYPICAL APPLICATIONS ..............1 三、 MEAURING SYSTEM INSTRUCTIONS ..........3 四、 HAREWARE COMPONENTS OF PRODUCT ........4 五、 OPERATING INSTRUCTIONS ............5 Keyboard instructions ....................... 5 Display icon definition ....................... 6 5.3 Operating concepts ........................6 5.3.1 Turn of/ turn off ........................ - Page 3 5.3.4.10 Data uploading ......................... 21 5.3.4.11 Data storage mode ......................23 5.3.4.12 Time setting ........................24 5.3.4.13 Language selection ......................24 六、INFLUENCING FACTORS OF MEASUREMENT ........25 6.1 Temperature influence ........................25 6.2 Lift-off influence .......................... 27 6.3 Material thickness influence ......................27 6.4 Camber influence ..........................
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Page 4: 一、 Applicability And Features
一、 APPLICABILITY AND FEATURES Sigma 2008B is the product of digital conductivity meter designed with eddy phase. These products commonly used in industries of metallurgy, machinery, electric power, aviation and aerospace, nuke, military, etc. Characteristics：... - Page 5 Metal classification Monitoring of strength and hardness Detecting the density of powder metallurgy parts - 2 -...
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Page 6: 三、 Meauring System Instructions
三、 MEAURING SYSTEM INSTRUCTIONS Model Sigma 2008 B Sigma 2008 B1 Items Working Freq. 60KHz and 500KHz, sine wave 60KHz sine wave Measurement 0.51 %IACS to 112 %IACS, or 0.3 MS/m to 65 MS/m or resistivity 0.01538 Ω·mm²/m 到 3.33333Ω·mm²/m... -
Page 7: 四、 Hareware Components Of Product
四、 HAREWARE COMPONENTS OF PRODUCT 2. Detecting probes （φ 14mm、60KHz） 1.Host machine of conductivity meter 3. Special detection probe 4. External temperature sensor （φ 8mm、500KHz） 5. Curved surface test suite 6. Leather case for main engine protection 7. Conductivity standard blocks 8. -
Page 8: 五、 Operating Instructions
9. U- disk 10. Batteries recharger 11. RS 232 communication cable 12. Hexagon wrench 13.Operation manual 14. Portable protective box 五、 OPERATING INSTRUCTIONS Keyboard instructions 5.1.1 “ MEAS ”：Measuring shortcut key 5.1.2 “ STORE ”： Storing date(effective on manual storing) 5.1.3 “... -
Page 9: Display Icon Definition
5.1.8 “ ”：Current temperature value input (effective measurement interface)/ Curvature η(φ) diameter correction coefficient modification (effective opening the camber compensation) 5.1.9 “ ”：Turn on/off 5.1.10 “ ”：Increasing progressively or moving upwards 5.1.11 “ ”： Decreasing progressively or moving downwards Display icon definition 5.2.1 “... -
Page 10: Measurement
” 5.3.1.3 In the turning on state, press key“ for about 2 seconds, this instrument is turned off and saved current setting information. 5.3.2 Measurement 5.3.2.1 Examples and conditions There are two ways of measurements, normal measurement(flat surface or camber ) and continuity measurement, users can select it on the measurement mode, the selection ways and conditions are as follows:... -
Page 11: Measuring Probe Selection
temperature compensation-temperature sensor” mode and 6.1.2.3 “automatic compensation-manual entering temperature” mode). Examples 3: continuity measurement operation mode This mode is only worked under “pseudo temperature compensation” mode, used to select the conductivity faster, and have alarm function of over upper and lower limitation. Calibrate the high value and the lower value before measurement (refer to 5.3.3.4~5.3.3.6), setting the upper and lower limitation of alarm value on measurement interface mode, back to the measurement interface can measure and select the material. -
Page 12: Measurement Unit
b． The large numbers in the middle of the screen show conductivity value tested under the temperature of +20℃ or true conductivity values of camber specimen by corrected coefficient η(φ) compensated. c． η(φ)=□□□□ is the curvature corrected coefficient of the camber, it is only effective after the camber compensation opened. -
Page 13: Methods Of Temperature Coefficient
When the current temperature TA=□□□℃sets as manual input temperature (automatic temperature compensation set as manual input temperature, see 5.3.4.3), TA value is obtained from the following operations: press " " button, select TA, press "OK" key η(φ) enter the digital part, then press the " "... -
Page 14: Calibration
This instrument’s input values of curvature diameter correction coefficients are from 0.700 to 1.100. 5.3.2.7.1 In the normal measurement interface, hand-hold eddy probe from the air (distance from the specimen of > 5cm) vertically placed on the surface of the tested, when measuring stable (about 2 seconds), heard "Di"... -
Page 15: Items Before Calibration
(digital display next to the "calibration" at the top of the screen is setting value σ (20) , shown below is the standard temperature coefficient value a ), probe vertical flat on surface of the high value block which has the same setting value of sigma σ (20)、a , measuring the conductivity value. -
Page 16: Low Value Standard Calibration Blocks
the "OK" key to enter the calibration block calibration. 5.3.3.6 Low value standard calibration blocks (at the top of the screen the digital display next to the "calibration" is setting value σ (20) , shown below is the temperature coefficient value a a．... - Page 17 - 14 -...
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Page 18: Setting Menu
5.3.4.1 Setting menu Press the key "SET" directly in any interface, the screen appears as below, Press the up “ ”or down “ ”key move the cursor to select the item, then press confirmation key "OK" to enter the settings. In the settings, if press the setting key "SET"... -
Page 19: 3Temperature Compensation Mode
following interface, press " " or " " button to select the curvature compensation opened or closed ,then press "OK" button to confirm (tick inside the box), exit and return to main interface. When choose continuity measurement, press "OK" button to confirm (tick inside box), enter into the following interface. -
Page 20: Temperature Coefficient Setting
Press upward key” ” or downward key " " to select the project, When choice is "pseudo temp.comp.", press "OK" button to confirm ( tick inside box) then return to main interface. When the choice is "automatic temperature compensation," press "OK" button to confirm (tick inside box) and enter into the following interface. -
Page 21: Calibration Block
save a numerical and the cursor automatically moves to the a item. Press" SET"(or" MEAS "key) key to exist and then return to main interface or the main measurement interface. temperature coefficient value must be set from a to a one by one, a must be placed in the end when it is equal to zero value , otherwise when the value of a... -
Page 22: Selection Frequency And Probe
φ14mm is for aviation industry standard, and 500 kHz φ 8mm is for detection of sheet material or small area of the work pieces material. 2008B1 Sigma type conductivity meter can not enter the interface. Sigma 2008B type machine can be selected according to the working frequency of the probe. -
Page 23: Unit Selection
5.3.4.7 Unit selection Selection method is the same as “frequency and probe selection” a. When choose the measurement unit, the instrument default the unit automatically , conductivity value unit will change to the default units automatically on any surface , the value is updated based on the conversion between the two units, and storage of conductivity values is the same as the default unit until the next change. -
Page 24: Data Query
5.3.4.9 Data query Description： a． The function is to query the measured data which saved in the past (a total of 16000 groups). b． Digital on the right of Chinese word “query” of the screen above represent of measurement date of the page data. c．... - Page 25 machine has been installed the driver and in a state of receiving the data. Press the “OK” key, the instrument start to upload the data, the screen display “Uploading” prompt, check the figure below. Uploading finished, the screen display ”END” prompt, check the figure as below, then press ”OK”...
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Page 26: Data Storage Mode
5.3.4.11 Data storage mode Selecting method is the same as “selection freq.&probe” . Instrument storage method has” manual "and" automatic ",both are effective in the main measurement interface .Saved information is the current measurement data include" σ (20), σ (TC), units of measurement, temperature TA and measure frequency f , A value, date”... -
Page 27: Time Setting
5.3.4.12 Time setting Press the upward key " " or downward key " " move the cursor to select date or time project, press the confirm button "OK" moves in selected items of the unit 1 figures, and then use increasing key " "or descending key" "modify values (if keep holding down the"... -
Page 28: 六、Influencing Factors Of Measurement
六、Influencing factors of measurement 6.1 Temperature influence 6.1.1 Material conductivity value dependent on its temperature very well, conductivity values decrease with the increase of temperature usually. Such as copper conductivity values is 58.0MS/m at 20℃, when the temperature rises to 25℃, conductivity values is 56.9MS/m. - Page 29 Example1: If the users want to measure the unknown copper or aluminum material, the calibration uses the copper and aluminum standard test block, as long as the test of copper and aluminum material has the similar temperature coefficient with the standard test block(that is ), the measured value is -0.004 correct.
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Page 30: Lift-Off Influence
6.1.2.3 “Automatic temperature compensation-manual entering temperature ” mode This model without inserting an external temperature sensor to calibrate temperature of testing block and the testing material , only need to input temperature T manual when calibrate (see 5.3.2.5), the other operation methods are the same as and mode 6.1.2.2. The model applied to have known temperature of calibration testing block and the testing material already. -
Page 31: Camber Influence
figure 6.1 If the thickness of the material is less than required thickness of 3× δ, the thickness 6.3.2 of the same material can be superposed to achieve the minimum thickness. In order to achieve the true credibility of the measurement results, we should pay attention to the following aspects: ①... -
Page 32: Edge Effect
convex surface conductivity value σ(φ)=56MS/m. Hypothesis: curvature coefficient η(φ) =0.975 of convex pieces with curvature diameter of φ=50mm( (η(φ) input see 5.3.2.7) σ σ(φ) η(φ) The actual conductivity =56/0.975=57.4MS/m act.= Example 2: using diameter 14mm, conductivity values 60KHZ probe to measure the concave surface of the work piece, the curvature diameter of work piece is 60mm, σ(φ) measuring concave surface conductivity value... -
Page 33: 八、 Users Notes
surface vertically and smoothly, putting down or picking up gently, handling evenly. 7.2 It’s not suitable to hold the probe for a long time. which will cause the temperature rise of the probe to affect the measurement accuracy. 7.3 Should try to keep the standard block, the test piece, the instrument, and the probe working under the conditions that the temperature fluctuations not big. -
Page 34: Appedix1: Table Of Conductivity Value For Common Material And Temperature Coefficient
APPEDIX1: TABLE CONDUCTIVITY VALUE COMMON MATERIAL AND TEMPERATURE COEFFICIENT CONDUCTIVITY (20℃) TEMP. COEFFICIENT METAL %IACS MS/m 20℃ Copper 0.0038 Aluminum 29～61 17～35.4 0.0040 Gold 70.7 0.0034 Silver 62.5 0.0038 Brass（H90） 43.10 0.0018 Aluminum ～0.0008 bronze Titanium 2.08 0.0040 Lead 0.0039 Zinc 17.4 0.0037...
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