Sigma 2008B is the upgrading product of Sigma 2008A,Which have the leading technology performance, can totally instead of the similar products overseas. Sigma 2008B adding a new Frequency testing of 500KHz, This can accurate measure the thinner test pieces. The Application range is more extensive after adding continuity measurement and camber measurement mode. In the meanwhile adding lots of temperature compensation mode can make sure measuring the temperature accurately under difference temperature conditions.
● Beautiful appearance, easy to carry about and grasp, simple and convenient to use.
● Measuring range covers all nonferrous metal materials, 0.51~112%IACS or 0.3~65MS/m.
● Big screen, big character; displaying measured result, working frequency, temperature, temperature coefficient etc. simultaneously.
● Two kinds of switchable frequencies for Sigma 2008B, 60KHz for aviation industry standard, 500KHz for detecting sheet metal.
● Special temperature coefficient setting and auto calibrating mode, convenient and reliable for user to operate.
● Up to 500μm lift-off compensation design, for maintaining the measuring accuracy when painted, coated or dusty on surface.
● The variety of temperature compensation mode design, combined with temperature coefficient, instruments can ensure the measurement accuracy under different testing temperature.
● With interchangeable probes, the user is able to change probes provided by our company without matching.
● Built-in date memory, can record 4000 sets of test date and important test parameters, you can connect the computer to generate a complete report.
● Two units (MS/m or %IACS) convenient choice, but also can directly switch resistivity in the measurement of interface.
● Three kinds of language selection: Simplified Chinese, Japanese and English.
Model Items | Sigma 2008 B | |
Working Freq. | 60KHz and 500KHz, sine wave | |
Measurement range for conductivity | 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 | |
Resolution | 0.1 %～0.001 %IACS | |
Measuring precision | ±1%(Temp.0℃~50℃),±0.5%（Temp. 20℃） | |
Lift-off compensation | 500μm of φ14 probe; 200μm of φ8 probe; | |
Temp. Measuring range | 0℃～+80℃（Temp. resolution0.1℃，Temp. Measuring precision0.5℃） | |
Auto. Compensation | Three temperature compensation modes：Testing result of conductivity adjusted to the value at temp. 20℃ automatically；Automatic temperature compensation and manual input temperature compensation mode. | |
Working environment | Temp. 0℃～+50℃，Related humidity 0～85%（Non-condensing） | |
Display | Large screen LCD, with back-light designed, can display multiple items of important parameter simultaneously | |
Power supply | Provided lithium ion battery of 3.7V、2200mA/h, continuous working about 12hours | |
Probes | B type machine with diameter 14 mm working frequency of 60 KHz and diameter 8mm working frequency of 500 KHz of a probe | |
Temp. Probe | Hand-hold surface temperature sensor | |
Reading memory | Save 500 sets of measuring date | |
PC Communication | RS 232 interface, Baud rate: 2400bps; Date rate:8 | |
Host weight | 0.5KG（Including battery） | |
Host size | 220 mm×95mm×55 mm | |
Shell | Plastic shell | |
Package and protection | High impact-resistance, portable box made of aluminum alloy, and instrument, probe, communication cable, operation manual, conductivity block, charger, instrument bracket, compact disc inside it. | |
Accessories | 3 pieces of standard conductivity blocks, can provide more blocks for customer choose. | |
● Conductivity and resistivity measurement of
● non-ferromagnetic material
● Determining extent of thermal treatment
● Checking thermal damage, material fatigue and crack
● Determining metal purity
● Monitoring of metal homogeneity
● Metal classification
● Monitoring of strength and hardness
● Detecting the density of powder metallurgy parts
TECHNICAL SUPPORT 1 ：86-592-3195306
86-18050108768
TECHNICAL SUPPORT 2 ：86-592-3295308
86-18060926989
The primary indexes comparing of
Sigma2008A/B/C series’ eddy current conductivity meters
Items Model | Measurement range | Lift-off | Working Freq. | Measurement area | Camber measurement | Auto.Compensation | Reading memory | Measuring precision |
Sigma 2008B | 0.51%～112%IACS (full measuring range) | 0.5mm | 60KHz and 500KHz | Minimum of 8mm Small area and ribbon | With curvature compensation function | Three temperature compensation modes Same or different temperature condition (automatically or manually) | Save 500 sets of data, and can upload to the computer | ±0.5% of measurements |
Sigma 2008B1 | 60KHz | Minimum of 14mm |
Items Model | Measurement range | Lift-off | Working Freq. | Measurement area | Camber measurement | Auto. Compensation | Reading memory | Measuring precision |
Sigma 2008A | 0.51%～112%IACS (full measuring range) | 0.5mm | 60KHz | Minimum of 14mm | None | Two temperature compensation modes Same or different temperature condition (manually) | Save 500 sets of data, and can upload to the computer | ±0.5% of measurements |
Sigma 2008A1 | 7.76～112%IACS |
Items Model | Measurement range | Lift-off | Working Freq. | Measurement area | Camber measurement | Auto. Compensation | Reading memory | Reading memory |
Sigma 2008C | 0.51%～112%IACS (full measuring range) | 0.1mm | 60KHz | Minimum of 14mm | None | One temperature compensation mode Same temperature condition | Save 500 sets of data, and can upload to the computer |
±1% of measurements |
Sigma 2008C1 | 7.76～112%IACS | None |
1. Measurement range:
The measurement range of model A, B, B1 or C is large. Besides copper, copper alloy, aluminum and aluminum alloy, the instrument can also measure titanium, titanium alloy and other low conductivity non-ferrous metal. It is the only real full measuring range instrument in China. You needn’t separately buy high or low conductivity instrument, but one our instrument is enough.
2. Lift-off compensation
Lift-off compensation is a important parameter of eddy current conductivity meter, which means the instrument’s capacity for overcoming the non-conductive layer (as paint, coating, etc.) above the tested material. Model A, A1, B or B1 is the same as foreign same type instrument, and the only instrument whose lift-off compensation is up to 0.5mm in China. Even if there are coating, paint, or other impurity and rough surface above the tested material, you could get the accurate testing data only if the gap is less than 0.5mm.
3. Working frequency
The currently used working frequencies are 60 KHz and 500 KHz, 60 KHz for aviation industry standard, 500 KHz for detecting sheet metal. Model B is the only instrument, which has a high and a low frequency probes and the high frequency probe is up to 500 KHz. The high frequency probe can be used for too thin workpiece whose thickness is 0.1mm to 0.3mm, so you no longer have to worry about measuring too thin workpieces.
4. Measurement area
The diameter of eddy current conductivity meter’s probe is usually between 13mm and 14mm, but model B has a big probe and a small probe whose diameter is 8mm. The probe is used of electromagnetic shielding technology, that the measured material needn’t be more than twice the size of probe. It can measure the small workpiece with the minimum value of 8mm, so you no longer have to worry about measuring too small workpieces.
5. Measuring camber and rapid sorting
Model B has unique camber modification technology, with the special camber measurement mode and “∧” shape probe cover, the camber material can be measured stably.
Model B has continuity measurement function, which can help you sort materials quickly by setting the upper and lower bound warning, in order to maximize efficiency
6. Temperature compensation
The other instruments in China have only virtual temperature compensation mode, which can measure accurately only when the calibration standard block’ temperature is same as the measured material. Model B used the advanced technology from Germany. It is the only instrument in China, which has the real full-automatic temperature compensation. Even if the block’s temperature is different with the material, it could automatically compensate the standard values.
7. Data storage
All models can save 500 sets date. It can be set as auto-saving without affecting the operating speed. You no longer have to take notes but easily view the measurements at any time, that also reduce manual error rate. All models except C of Sigma series’ instruments can connect the computer and upload data to the computer to organize and print
8. Measurement accuracy
Each model’s indicators and functions are different from the other, but the most critical parameter called measurement accuracy of instrument is uncompromising. All models’ accuracy is up to ±0.5% ~ ±1% as the foreign same type instrument, to ensure the most precise measurements.
9. Measurement parameter
Every models have three kinds of measurement parameters are “MS/m”, “%IACS” and “ῼ • mm²/m”, one keyboard toggle without manual handling, be wonderfully easy to use.
