PCR III linear position transducers

The new transducers of the PCR III series for measuring displacement or level are rugged, accurate, without any mechanical wear among the parts, resistant to blows and vibrations and equipped with protection against hostile environments

It is possible to measure linear displacements, using a magnetic ring cursor, or fluid level, by means of a magnetic float.

  • Length of measuring probes from 100 to 3,000 mm
  • Analog outputs 0-10 V, 4-20 mA and 0-20 mA
  • Digital output: RS485 with Modbus and CANopen protocol
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The level transducers of the PCR III series are rugged, accurate, without mechanical wear between the measuring probe and the float, they are resistant to shock and vibrations and are equipped with protection against hostile environments.

They are absolute measure transducers – of a magnetostrictive type – with measuring ranges from 100 to 3,000 mm, which measure the position of the magnetic cursor compared to the probe in a fluid digitally and continuously with no friction or wear between the parts.

There is a dead zone on the measuring probe near the tip of 55 mm – for measurement purposes – as per the design. Normally this area is comprised within the float (AFC models 2S, 4S, 6S, 10S or 12S), and should be taken into account when using the AFC-8S float. It is possible upon request to provide the measuring probe of the transducer with a restraint system of the float that avoids removal. This can be an accessory that is added to the outside of the standard probe (height 9 mm) or can be integrated into the tip of the measuring probe, increasing its length by 10 mm.

The position measurement is available as digital data in the calibration units – via a RS485 connection with a Modbus, or CANopen protocol – or as an analog signal (voltage or current).

The transducer is supplied already calibrated as per the order, but can be customized by means of the digital connection by accessing the internal data structure in order to adapt the operation to the application – for example, in order to align the analog signal end references with the level variation range involved, or to reverse the unit’s direction of measurement with respect to the built-in measuring head. It is also possible to obtain the position/level measurements with centesimal resolution, with the digital connection, in addition to knowing the diagnostic situation.

It is possible with the digital connection, to customize the unit with a linearization table in order to convert the measurement of the float position in volume, whenever the transducer is immersed in irregularly shaped tanks, or it is possible to activate a filtering function that minimizes the effect of possible waves on the measurement.

A software tool for Windows ® is available for carrying out simple measurement functions, to customize the analog output, to enter the characterization points of the linearization table or to view the diagnostic status of the unit.

The transducers of the PCR III series are CE marked, they have passed EMC tests and are also available in an explosion-proof case.


100 mm, 1000 mm, 1050 mm, 1100 mm, 1150 mm, 1200 mm, 1250 mm, 1300 mm, 1350 mm, 1400 mm, 1450 mm, 150 mm, 1500 mm, 1550 mm, 1600 mm, 1650 mm, 1700 mm, 1750 mm, 1800 mm, 1850 mm, 1900 mm, 1950 mm, 200 mm, 2000 mm, 2050 mm, 2100 mm, 2150 mm, 2200 mm, 2250 mm, 2300 mm, 2350 mm, 2400 mm, 2450 mm, 250 mm, 2500 mm, 2550 mm, 2600 mm, 2650 mm, 2700 mm, 2750 mm, 2800 mm, 2850 mm, 2900 mm, 2950 mm, 300 mm, 3000 mm, 350 mm, 400 mm, 450 mm, 500 mm, 550 mm, 600 mm, 650 mm, 700 mm, 750 mm, 800 mm, 850 mm, 900 mm, 950 mm


on transducers up to 500 mm = ± 0,06 mm###on transducers from 500 to 3000 mm = ± 0,3 mm

Sampling frequency

up to 1000 Hz (according to probe length)


from 18 to 30 Vdc (±15%), with protection of polarity inversion (diodes and protection fuse) ### current <50 mA (through 5 poles shielded wire, twisted couple)

Operating temperature

from -40° to +110°C for the measuring support###from -40° to +85°C fot the electronics (Rh 95%)

Environmental protection


Output signal type

Analog, Digital

Analog Output

0-10 V, 0-20 mA, 4-20 mA

Digital Output

CAN open, RS485


Aluminium alloy


0,03 mm

Zero adjust range

100% (anywhere in the active measuring area)

Resolution on analogue output

16 bits (for the internal D/A converter)

Ingombri dimensionali PCS III

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