Page 56 - Schroeder - Accessories

Electronic Sensors

Introduction Today’s modern hydraulic systems need a variety of different conditions measured at all times for a safe and
uninterrupted operation. Schroeder Industries electronic sensors cover a wide range of functions and are an
important part in any system for control and diagnostic functions. The sensors cover the following areas:
Pressure Transducers and Switches

Electronic pressure sensors are used for recording pressures in fluid technology systems. Functionality and
form of execution are determined by the respective utilization conditions. In order to fulfil these require-
ments, Schroeder Industries offers a comprehensive program of pressure transducers and pressure switches.

Electronic pressure transducers record the measured pressure variable and convert it into a proportional out-
put signal. Electronic pressure switches record the measured pressure variable, process it and output a switch-
ing signal in accordance with the presetting. Electronic pressure switches offer a multitude of advantages
in comparison with mechanical pressure switches and contact manometers. They convince though greater
accuracy, freedom from wear, long-term stability, simpler operation and the high number of switching cycles,
among other things.

Flow rate Transmitters and Monitors

Schroeder Industries offers different flow rate measuring transmitters and flow switches for recording the
flow rate in machines and hydraulic systems. The flow rate measuring transducer works in accordance with
the turbine principle (recording the rpm of an impeller wheel rotating in the media flow). Depending on the
version, additional connection openings for pressure and/or temperature transmitters are available. The flow
monitors are based on the buoyancy transmitter measurement principle. Under these circumstances, the
measurement medium deflects a spring-charged buoyancy transmitter in the flow direction, depending on
the flow rate. A reed contact is fitted outside of the device. This will switch when the magnet integrated in
the buoyancy transmitter reaches the preset position.

Level Transmitters and Switches

Electronic level sensors of are used for recording fill levels in fluid technology systems. In order to fulfil the
wide-ranging customer requirements, Schroeder Industries offers an extensive range of capacitive and
contact-free level switches.
Electronic level switches record the fill level and output one or more switching signals in accordance with the
presetting. As an option, the fill level can also be permanently output as an analogue signal.

Temperature Sensors and Switches
For recording and evaluating temperatures, Schroeder Industries offers temperature transducers and tem-
perature switches for installation in pressure lines or for tank mounting. Temperature measurement transduc-
ers record the temperature and convert it into a proportional output signal. Electronic temperature switches
record the temperature, process it and output a switching signal in accordance with the presetting.

HSI Sensor Interface

The HSI sensor versions, indicated with ‘H’ in the model code, have been specifically design to be automati-
cally recognized by the Schroeder HMG data recorder device, for easy Plug-and-Play set-up. The sensor is
recognized immediately after plugged into the HMG and all the necessary basic settings are taken from the
sensor. For more information about the HMG, please refer to the Schroeder Filter Systems catalog.

54 SCHROEDER INDUSTRIES