Inductive Linear Displacement Transducers Model IWM 300 Measuring strokes : 5, 10 and 15 mm ■ Contactless, robust sensor system ■ Infinite resolution, no hysteresis ■ Calibrated output signals: 0(4) to 20 mA, ± 10 VDC, or 0 to 10 VDC ■ Accuracy up to 0.1% ■ Cylindrical housing with M30 x 1.5 external mounting thread ■ Protection class IP 66 Construction and operating principle The displacement transducer operates according to the principle of the differential choke, i.e. an inductive half bridge. It consists of two coils which are encapsulated in a round nickel plated brass housing. A mu-metal plunger core causes opposing changes of inductance when it is displaced through the centre of the coils. These changes are converted by the integral electronic circuit into a signal proportional to the displacement. The circuit contains an oscillator, demodulator, amplifier and the output stage. It is short-circuit proof and protected against reverse polarity. Standard measuring strokes : 5, 10 and 15 mm Independently of the measuring stroke the mechanical travel of the plunger is 18 mm. Shorter measuring ranges can be calibrated upon request. Standard versions and calibration * Increasing signal when the plunger is moved in the direction towards the electrical connections. ** Other supply voltages on request The housing consists of nickel plated brass, the plunger shaft is in stainless steel. The external thread allows for easy mechanical zero point adjustment. The transducers are completely sealed to ensure protection against vibration, shock, humidity, oil and corrosive matter. They can be supplied either with lead or connector exit. The index can be adjusted by skrewing the device into the measuring position.

(prot'd against reverse polarity) ± 13 to ± 16 VDC Technical Data Accuracy : Temperature drift : Stability : Measurement frequency Operating temperature range : Storage temperature range : Resistance to shock : Resistance to vibration : Protection class : ± 0.1 % ± 0.25 % ± 0.5% < ± 0.05 % /°C < 0.1% in 24 hours :< 100 Hz -10°C to +80°C -30°C to +80°C 250g SRS at 20 to 2000 Hz 20g rms (50g peak) at 20 to 2000 Hz IP 66 IP 67 with STK 65 Electrical connections in the plug (view towards the connection part of the device) Current output (IWM 301 ■ Current signal : ■ Supply current IS : ■ Load resistance...

Inductive displacement transducer Model IWM 300 Dimensions in mm Standard 4 M12x1 (Binder) Wrench flattening Schlüsselfläche Wrench flattening Schlüsselfläche Gauge with bellow (B) M12x1 (Binder) Wrench flattening Schlüsselfläche Schlüsselfläche Wrench flattening