Crack detection instrument
DEFECTOMETER M 1.837                                  Technical Leaflet (1MB) PDF-Datei

The DEFECTOMETER M 1.837 is designed for crack testing. It is characterised by a very high sensitivity to surface defects and by simple, intuitive operation.

Compared to the predecessor model, the DEFECTOMETER 2.837, it has numerous new features.

  • Lift-off warning when the probe is not in contact with the material.
  • Extremely good legibility of the bright LED scale pointer and transflective LCD display under all lighting conditions.
  • More than 40 h autonomy with a single battery charge. The batteries are automatically charged inside the device when the external power adapter is connected.
     

          Defectometer Crack detection instrument

  • Display and storage of the measurement results on your PC by means of the USB interface.
  • With only two probes all materials (NFe, Fe, Aust and Ti) can be tested.
  • Probes of the predecessor model can be used.

Example applications

  • Crack detection down to a depth of approximateliy 20µm on the surface of electrically conductive materials. Paints or other protective coatings do not have to be removed.
  • Aircraft maintenance
    Testing for surface cracks, e.g. around rivets, on turbind blade and wheels, etc.
  • Metal processing industries
    Simple sorting tasks
  • Automotiv and component manufacturers
    Testing for cracks and hardness changes

Technical Data

Defect resolution

20 µm crack depth

Dynamic sensitivity range

20 dB in 0.5 dB increments

Zero offset

Adjustable from 0 to 99% in
1% increments

Defect threshold

Adjustable from 0 to 99% in 1% increments, signalled optically by red LED and acoustically via loudspeaker or earphones

Defect indicator

LED scale pointer and alphanumeric LCD display

LCD display

2-line
selectable backlight level

Lift-off warning

Visual with yellow LED and acoustic via loudspeaker or earphones

Maximum test speed

approx. 0.1 – 0.15 m/s

Power supply

6 NiMH rechargeable batteries, type AA (e.g. 2500 mAh) or external power adapter with long-range input 110 – 240 V, output 12 VDC

Operating duration with battery set

> 24 h
> 40 h without display backlighting
Automatic cut-off after 15 min

Battery capacity display

Charge status can be displayed in %
Warning by means of red LED at approx. 30 min. remaining operating time

Battery charging

When the device is operated with an external power supply unit (power adapter), the installed batteries are automatically charged.
Charging current: 400 mA
Charging time with NiMH 2500 mA: 7.5 h
Warning: When operating with batteries, the external power adapter must not be connected - explosion hazard.

Housing

Polyamide 6 (PA6), resistant to kerosene and oil

Interface

USB

Membrane keypad

Dust-tight and water-tight

Protection class

IP 54 (without connection sockets)

Permissible operating temperature

-10 °C to + 55°C

Permissible storage/transport temperature

-20 °C to +70 °C

Permissible relative humidity

5 % to 95 %

Weight (incl. batteries)

0.4 kg

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Defectometer M 1.837: Crack testing, Crack tester, crack detection instrument, Crack detector, Flaw testing, Flaw tester, Flaw detection instrument, Flaw detector, Eddy current instrument for non-destructive testing (ndt) of conductive materials for surface flaws detection