ELOTEST M2 

Ergonomic One-Hand Eddy Current Test Instrument 

The ELOTEST M2 is a universal one-hand tester for surfaces, drill holes and hidden structures. It also measures the conductivity and layer thickness of all materials. The ELOTEST M2 allows a DUAL frequency test with mix and covers the complete range of frequency from 10 Hz to 12 MHz. It offers a signal optimization for static and dynamic tests due to all filter functions (LP, HP, BP ). The sharp LCD Display with LED illumination ensures an optimal visibility of the test signals, even in direct sunlight. Integrated calibration bodies simplify and accelerate on-site work. The device is operated with a well-structured keypad and clearly assigned functions. This allows even unexperienced users to work with quickly and safely. The user-friendliness is supported by clear text messages on the screen.

Features 

• Full frequency range: 10 Hz to 12 MHz
• Fully variable filters: low-pass, high-pass and band-pass, for static and dynamic inspections
• High speed Impedance plane and Time-Base modes
• Internal digital strip-chart recorder
• Suitable for all types of probes
• Separate BNC connector for parametric/single-coil probes (NO balancing load required!)
• Adapters/adapter cables for various competitor probe connectors
• Easy to operate via pictographs and text using only 9 keys
• Li-Ion battery for more than 8 hrs operation
• High-definition LCD display with back-light and adjustable contrast, for indoor and outdoor use
• Higher performance at a cost effective price

Applications

• Manual inspection with differential and absolute probes
• Multi-layer rotary inspection of bore holes
• Testing for surface defects and hidden structural defects
• Measuring corrosion and conductivity
• Defect analysis of built-in tubes with co-axial and rotating internal tubes probes
• Material properties/ hardness sorting

Specifications

User-Interface ELOTEST M2

• Pictograph-based, one-hand operation via key pad with key-click
• 6 languages: English, German, French, Italian, Swedish and Spanish
• Direct-function keys for offset- and liftoff-compensation
• Programmable function key
• Intuitive operation using only one submenu-level

 Probe Connection

• 11-pin Fischer socket, compatible with the 8-pin Rohmann connector
• BNC connector for parametric probes (resonant probes)
• OEM probes to be connected via an adapter or directly to the BNC connector
• Speed control for rotor (torque compensated) in 10 steps (corresponds to approx. 900 rpm to 2700 rpm using Rohmann standard rotors)
• Compensation of the probe response signal for optimum signal dynamics
  
• Automatic test frequency selection using the probe characteristics
•  Automatic balancing of single-coil probes using finely graduated, internal compensating loads (no external elements required)

 Frequency Range

• 10 Hz to 12 MHz, continuously adjustable, display in Hz, kHz, MHz
• Adjustable driver current, from 0 % to 100 % in 2 % steps
• Frequency variation from nominal less than 1 %; frequency stability 50 ppm
• Dual-frequency operation in multiplex-mode

 Gain

• Preamplification 0 to 60 dB in 0.5 dB steps (0 to 40 dB in 100 kHz range)
• Gain 0 to 60 dB in 0.5 dB steps
• Axis spread 0 to 20 dB in 1 dB steps
• Automatic selection of preamplification and gain

 Phase

• 0-359.5° in 0.5° steps; step size adjustable Filter
• Low-pass filter 1.3 Hz to 10 kHz in 40 steps
• Band-pass filter 0 Hz to 10 kHz; combination of HP and LP
  
• Selectable automatic filter for rotor operation

 LCD–Display

• LCD featuring long-life LED backlight, 80 x 60 mm (3.15” x 2.36”)
• Temperature-compensated contrast setting
• Resolution 320 x 240 Pixel; refresh rate 75 Hz,
• 220,000 data samples/second, no signal delay
• Signal display covering 100 % of the screen; over 89 % with menu displayed
• 80° viewing angle

 Display Modes

• Impedance plane / spot display (X/Y), available for all probes
• Time-base/sweep display (Y/t), 5 ms to 60 s in 17 steps; synchronized
• Simultaneous X/Y- and Y/t-display (dual-screen mode)
• Reference signal may be displayed in the background
• 2 screen grid sizes with adjustable intensity
• Selectable display range: X/Y center – X/Y center bottom – X/Y bottom right
• Freely positionable zero/null point
• Automatic trigger during rotor operation
• Simultaneous multi-signal display during multi-frequency operation
• Persistence: 0.1 s to 70 s adjustable in 12 steps
• On-screen signal storage; cleared manually or via auto-erase (2 - 80 s)

 Gates/Alarm

• Alarm: optical and acoustic
• Active in all display modes; may be inverted
• Adjustable gates: +Y-gate, Box-gate, Circle-gate with adjustable flat in the Y-direction

 Parameter Settings/Image Memory

• 99 user settings may be programmed, stored and recalled
• 50 application-related factory default settings (cannot be overwritten)
• 32 signal memories incl. parameter settings for documentation
• Parameter setups and images may be named using alphanumerical characters
• Image and parameter data may be printed and transmitted to personal computer
• Long-term recording (strip chart) of X- and Y-signals, from 20 s to 24 hours; 90,000 min/max-values (envelope, without data-loss)
• Data storage maintained (backup-battery)

 Conductivity Measurement

• Measurement in % IACS or MS/m from 1 % IACS to 110 % IACS.
• Measuring frequency: 60 kHz
• Calibration using 2 individually adjustable calibration points

 Coating Thickness Measurement

• Measurement of non-conductive layers on conductive non-ferromagnetic materials
• Measurement range up to 1000 µm or 40 mils

 Multi-Frequency Operation

• 2-frequency multiplex
• Multiplex rate up to 1 kHz
• Both frequencies fully adjustable, independent of each other
• Signal mix-function to suppress unwanted effects

 Interfaces

• RS232-interface for PC or printer (HP Laserjet and Epson LX80)

 Operation with Lithium-Ion Batteries

• Without background light and rotor: approx. 8 hours
• With light and rotor: approx. 6 hours
• Indication of remaining charge capacity
• Acoustic and optical alarm for low battery
• Charge time Li-Ion battery from 0 % to 70 % - approx. 1 hour
• Charge time Li-Ion battery from 0 % to 100 % - approx. 6 hours
• Battery may be replaced in less than 10 seconds

 Ambient Conditions

• Operation between -20 °C (-4 °F) and 50 °C (122 °F) at max. 85 % rel. humidity (non-condensating)
• Storage between -30 °C (-22 °F) and 80 °C (176 °F) at max. 85 % rel. humidity (non-condensating)
• Battery charge between 0 °C (32 °F) and 40 °C (104 °F) at max. 85 % rel. humidity (non-condensating)

 Dimensions

• • Ergonomic design
• Max. dimensions: 320 mm (12.6“) / 125 mm (4.92“) / 73 mm (2.87“) (length/width/depth)
• At display: 120 mm (4.72”) / 107 mm (4.21”) / 53 mm (2.08”) (length/width/depth)
• At handle: 185 mm (7.2”) / 63 mm (2.48”) / 44 mm (1.73”) (length/width/depth)

 Weight

• Ergonomically optimized center of gravity (inside the operator's hand)
• Instrument without battery approx. 530 g (1.1 lbs)
• Lithium-ion battery approx. 390 g (0.85 lbs)
• Wide-range charger approx. 560 g (1.23 lbs)
• Table-top charger (docking station) approx. 1,070 g (2.35 lbs)

 Power Supply (Options)

• Li-ion battery (14.8 V/2300 mAh)
• Mains operation with desk-top docking station (88 – 265 VAC/47 – 440 Hz) featuring intelligent battery management separately for instrument and second battery pack

 Calibration Standards (optional)

• Calibration standards: titanium, aluminum, stainless and ferromagnetic steel with reference notches: 0.2/0.5/1.0 mm (0.039/0.02/0.008 inch) deep; may be inserted into the instrument handle

Setting Manager

• PC-software to archive settings, generate test reports and screen shots