Positioner with remote position detection

Description

In addition to the properties of the compact design, the SIPART PS2 provides the option for separate, remote position detection.

The following systems can be used for particularly critical applications such as extreme vibrations, temperatures and water influences as well as valves which are difficult to access:

The Non Contacting Sensor (NCS) detects the current position of a valve reliably and precisely on the basis of the giant magnetoresistance (GMR) effect with utilization of the magnetic field lines. Compared to other methods which are based on the field strength and are more prone to reacting to this as well as to temperature influences, the GMR principle offers a further advantage: a greater distance is possible between sensor and magnets. The compact design and the high IP68 degree of protection of the non-contact and wear-free NCS also allow use in applications where conventional mounting solutions reach their limits.

The external position detection system in the Makrolon enclosure combined with a SIPART PS2 is particularly suitable for valves which are difficult to access.

The SIPART PS2 is also the best choice for applications which are not always typical for positioners (e.g. with pneumatic cylinders). Thanks to its modular design, however, it can also be connected to external position detection. The principle on which the external sensor is based is irrelevant. Whether with or without contacts, whether potentiometer, current signal or voltage value: the SIPART PS2 always impresses. All these different types of external sensors can be connected quickly and simply to the EMC filter module – no matter whether they are installed externally or inside the actuator component (e.g. in a pneumatic cylinder).

Detail

Non Contacting Sensor (NCS)

Type of construction:

Remote / contactless position detection

Range of stroke:

3 to 130 mm (larger strokes on request)

Angle of rotation range:

30° to 100°

Ambient temperature:

-40 °C to +90 °C

External position detection system

Type of construction:

Remote / mechanical position detection

Range of stroke:

3 to 130 mm (larger strokes on request)

Angle of rotation range:

30° to 100°

Ambient temperature:

-40 °C to +90 °C

EMC filter module

Type of construction:

Remote / contactless or mechanical position detection
(depending on vendor)

Range of stroke:

Depending on vendor of position detection system

Angle of rotation range:

Depending on vendor of position detection system

Ambient temperature:

Depending on vendor of position detection system


Benefits

Non Contacting Sensor (NCS)

  • As standard with IP68 or NEMA 4x degree of protection

  • Resistant to permanent vibrations and shocks (e.g. steam hammer)

  • Can be used in applications with extreme temperature influences

  • Compact sensor design means it is suitable for mounting on dosing valves


External position detection system

  • Simple access to the positioner for valves which are difficult to access (e.g. for parameter assignment, checking of control function)

  • Can be used in applications with extreme temperature influences

  • Simple mounting of the position detection system thanks to compatibility of all positioner mounting sets


EMC filter module

  • For connection of position detection systems with a resistance of 0 to 10 kOhm

  • For connection of position detection systems for non-hazardous applications to 0 to 10 V or 4 to 20 mA as position detection signal