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MultiMac - Eddy Current Instrument
Versatile Threshold Selection: Challenging test conditions are made simple with threshold selections that allow complex gating to detect ID/OD and weld sector defects. 3 gates per channel may be set based on All Phase, Sector, Chord or Half Chord thresholds. (Gates shown at right & below). Up to 8 Channels: Eight differential (null) or absolute channels, each able to operate over the entire frequency range of 1 KHz to 5 MHz, with appropriate test coils or rotary probes. One channel can be set as a differential channel with an encircling test coil to detect short weld line defects, for example, while a second channel, using a rotary probe test, simultaneously detects long, continuous surface flaws such as laps and seams.
EC Screen
All parameters for testing are set up through the EC Screen. They can be entered through the keyboard or by using a mouse. Each channel is set up independently. A lock out provision is included to prevent changes by unauthorized persons.
Multi Screen
- Simultaneous test results, including thresholds, for up to eight channels, in polar and linear modes
- Clearly demonstrates defect signals outside the acceptable threshold levels
- Displays Rotary speed, piece number, length, and throughput speed
New C Scan Screen
For rotary probe applications, an intuitive C Scan combines all channels and clearly displays the defect location with respect to its circumferential and longitudinal position.
Chart Screen
- Shows the linear test results for up to 8 channels at a time
- Each channel can record up to 3 charts, based on the type of threshold (Allphase, Sector and Chord)
- Time, date, piece number, length and speed of the material under test are also indicated
Track Screen
The Track Screen allows for a visual representation of the product, length, line speed, end suppression, flaw tracking, piece count, and output (alarm) routing. Advantages include increased quality control and decreased down time.
- Simultaneous Coil and/or Rotary Probe operation
- Differential and/or Absolute Mode operation
- Up to 8 independent Test Channels
- 1 KHz to 5 MHz Test Frequency selection for each Channel
- Store & Recall Setups; Print & Transfer Data
- Simultaneous Polar/Linear Display
- All channel composite C Scan display of defect location, for rotary applications
- Versatile Threshold Selection includes Chord, Half Chord, Sector, All Phase
- Enhanced Signal-to-Noise
- Detect short surface and some subsurface defects in tube, bar, and wire.
- Identify seam type surface defects and laps in cold drawn wire or cut length bar stock.
- Test magnetic or non-magnetic wire, bar and tube.
- Inspect welded tube for short ID or OD defects in the weld zone.
- Test uniform cross sectional material, including squares, rectangles, hex and round.
- Check continuity and locate welds in single & multi-conductor insulated wire and cable.
- With additional absolute channels, check for long, open welds or magnetic inclusions.
- Inspect in-line with continuous wire operations.
- Test parts, such as small shafts and bearings for longitudinal surface defects.