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This proximity system allows contactless measurement of the relative displacement of moving machine elements. The system is based around a TQ 423 non-contacting transducer and its matching IQS 453 signal conditioner. Together, these form a calibrated proximity system in which each component is interchangeable. The system outputs a voltage or current proportional to the distance between the transducer tip and the target (e.g. machine shaft).

The IQS 453 signal conditioner contains an HF modulator/demodulator that supplies a driving signal to the transducer. This generates the necessary electromagnetic field used to measure the gap. The conditioner circuitry is made of high-quality components and is mounted in an aluminium extrusion.

OUTPUT CHARACTERISTICS

Voltage output, 3-wire configuration

• Voltage at min. GAP : -1.6 V

• Voltage at max. GAP : -17.6 V

• Dynamic range : 16 V

• Output impedance : 500 Ω

• Short-circuit current : 45 mA Current output, 2-wire configuration

• Current at min. GAP : 15.5 mA

• Current at max. GAP : 20.5 mA

• Dynamic range : 5 mA

Output capacitance : 1 nF Output inductance : 100 μH

SUPPLY Voltage : -20 V to -32 V

Current : 13 ± 1 mA (25 mA max.)

Supply input capacitance : 1 nF

Supply input inductance : 100 μH

ENVIRONMENTAL CHARACTERISTICS (According to DIN 40040)

Temperature range

• Operation : -30°C to +70°C

• Storage : -40°C to +80°C Humidity

• Operation and storage : Max. 95% non condensing Vibration

• Operation and storage : 2 g peak between 10 Hz and 500 Hz

Protection class : IP 40

PHYSICAL CHARACTERISTICS

Construction material : Injection moulded aluminium

ELECTRICAL CONNECTIONS

Input : Stainless steel coaxial female socket

Output and power : Screw terminal strip