The Sigmatest 2.070 is a portable eddy current instrument which measures the electrical conductivity of non-ferromagnetic metals based on the complex impedance of the measuring probe and determines physical and technical material properties. It features five different excitation frequencies and an extremely high measuring accuracy. The unit retains this high level of accuracy even at a high frequency of 960 kHz, making it possible to measure very thin workpieces with great precision. The measuring instrument is able to automatically standardize the measured value of the electrical conductivity to 20°C due to an integrated temperature compensation.
Typical applications include controlling the quality of manufactured products, testing material combinations, and sorting metals, alloys, and scrap metal. The unit is also used for the maintenance of aircrafts, determining heat damage, and in-process controls during production and processing in the metallurgy sector. The measurement quality meets Boeings (BAC 5651) and Airbus standards.
Operating Modes
The Sigmatest 2.070 is capable of operating in either Touch- or Continuous mode. Use Continuous mode to scan surfaces and display the measurement values in a time chart or Touch to measure single values. Use the recording function to save all measurements.
Correction Factor
Variations in the material geometry can produce a measurement error. One example is measurement on test pieces with curved (either concave or convex) surfaces. If the conductivity value of the test piece is known, the error caused by the curvature of the surface can be corrected by using a correction factor. The measured value is multiplied by the correction factor and the corrected value is displayed on the LCD.
The Sigmatest 2.070 "remembers"
The Sigmatest 2.070 now automatically receives the correct calibration curve from the probe. This feature is especially useful when using both 5 mm, 8 mm and 14 mm probes with the same instrument.
Temperature compensation
The Sigmatest 2.070 compensates for temperature related electrical conductivity variations. A default temperature coefficient is installed in each instrument. In addition, the user can define a specific temperature coefficient to optimize the results for specific applications. Temperature measurement is performed using either the temperature sensor which is integrated into the probe or by connecting an external temperature sensor. An external temperature sensor is recommended when the temperature of the test piece differs from the probe temperature.
Measuring in all positions
These probes, operated with the Sigmatest 2.070, form a complete system. The probes are available in diameters of 5 mm, 8 mm or 14 mm for a wide variety of applications. There are standard probes, angled probes, probes with a flexible arm or probes adapted to your individual requirements. The 5 mm probe is used for the smallest parts made of high-value materials such as silver, copper, gold, and aluminum. The 8 mm probe is used for very narrow or small surfaces, for example on small coins. The 14 mm probe is easier to handle and provides a slightly more stable reading due to its larger surface area.
A temperature sensor is built into each probe to measure the ambient temperature and to readjust the conductivity value if necessary. Optional titanium version for minimum probe wear and even more stable measurement results. The probes are available in various standard geometries, but can be fully customized
| Measuring Range | 0.5 to 65 MS/m or 1 to 112 % IACS |
| Absolute Accuracy | +/- 0.7 % of measured value @60 kHz, 14 mm probe |
| Resolution | +/- 0.1 % of measured value |
| Automatic Distance Compensation | Up to 750 μm (0.03 inch) |
| Operating Frequencies | 60 / 120 / 240 / 480 / 960 kHz |
| LCD Display | 480 x 640 pixel |
| Power Supply | 5V DC / 3000 mA |
| Operating Time per Set of Batteries | 4 h |
| Operating Voltage | Power supply and battery charger adaptable to the operating voltage in any country |
| Interfaces | 10 pin LEMO connector, SD card slot, Ethernet RJ45 100 Mbit/s |
| Temperature Range | 0 °C to +40 °C (32 °F to 104 °F) |
| Humidity | 5 % to 85 % |
| Dimensions | 211 x 102 x 40 mm |
| Weight | 0.62 kg |
| Standards | DIN 50994, ASTM E 1004, DIN EN 2004-1 |
| Widths of the Probe Head | 5 mm, 8 mm, 14 mm |
| Measuring Range | 0.5 to 65 MS/m or 1 to 112 % IACS |
| Operating Frequencies | 60 / 120 / 240 / 480 / 960 kHz |
| Temperature Range | 0 °C to +70 °C |
| Description | Part # | Saved | Price | Select Option | Add to |
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Instrument Kits |
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| Foerster Sigmatest 2.070 with 14mm Titan Probe Kit Includes: Sigmatest 2070 Unit, 14mm Titan Probe w/Handgrip, Probe Cable, Calibration Standard 2pc, 8 Batteries, Battery Charger, Power Supply, Instructions & Carrying Case | CM-FR-9134735 |
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| Foerster Sigmatest 2.070 with 8mm Titan Probe Kit Includes: Sigmatest 2070 Unit, 8mm Titan Probe w/Handgrip, Probe Cable, Calibration Standard 2pc, 8 Batteries, Battery Charger, Power Supply, Instructions & Carrying Case | CM-FR-9134743 |
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| Foerster Sigmatest 2.070 with 14mm 90° Angled Titan Probe Kit Includes: Sigmatest 2070 Unit, 14mm 90° Angled Titan Probe, Probe Cable, Calibration Standard 2pc, 8 Batteries, Battery Charger, Power Supply & Carrying Case | CM-FR-9134751 |
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| Foerster Sigmatest 2.070 with 14mm Peek Probe Kit Includes: Sigmatest 2070 Unit, 14mm Peek Probe w/Handgrip, Probe Cable, Calibration Standard 2pc, 8 Batteries, Battery Charger, Power Supply, Instructions & Carrying Case | CM-FR-9134719 |
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| Foerster Sigmatest 2.070 with 8mm Peek Probe Kit Includes: Sigmatest 2070 Unit, 8mm Peek Probe w/Handgrip, Probe Cable, Calibration Standard 2pc, 8 Batteries, Battery Charger, Power Supply, Instructions & Carrying Case | CM-FR-9134700 |
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Probes and Cables |
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| Foerster Sigmatest 2.070 8mm Titan Probe w/Handgrip | CM-FR-2825430 |
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| Foerster Sigmatest 2.070 8mm Peek Probe w/Handgrip | CM-FR-2214296 |
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| Foerster Sigmatest 2.070 14mm Titan Probe w/Handgrip | CM-FR-2825406 |
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| Foerster Sigmatest 2.070 14mm Peek Probe w/Handgrip | CM-FR-2214288 |
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| Foerster Sigmatest 2.070 14mm Angled Probe | CM-FR-2825465 |
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| Foerster Sigmatest 2.070 8mm Flex Probe | CM-FR-2213052 |
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| Foerster Sigmatest 2.070 8mm Flex, 90° Angled Probe | CM-FR-2213060 |
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| Foerster Sigmatest 2.070 5mm Titan Probe | CM-FR-2603497 |
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| Foerster Sigmatest 2.070 2m Probe Cable | CM-FR-2825651 |
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| Foerster Sigmatest 2.070 Angled Probe Cable | CM-FR-2228742 |
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Conductivity Standards |
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| Foerster Sigmatest 2.070 Calibration Standard Set (2 Stds) Includes: 6.9% & 100% IACS (4MS/M / 58MS/M) | CM-FR-2830230 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 6.9% IACS (4MS/M) | CM-FR-2827581 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 25.86% IACS (15MS/M) | CM-FR-2218933 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 29.31% IACS (17MS/M) | CM-FR-2219050 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 37.93% IACS (22MS/M) | CM-FR-2218968 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 51.72% IACS (30MS/M) | CM-FR-2218992 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 62.07% IACS (36MS/M) | CM-FR-2219026 |
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| Foerster Sigmatest 2.070 Conductivity Standard, 100% IACS (58MS/M) | CM-FR-2827590 |
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