Facts and Features
In many fields of industry the positions of actuators or setpoint devices, for example, must be measured accurately. In many cases they are used as a reference input for controllers or monitoring systems, safety shutdown systems, or for similar critical tasks.
As a rule, high demands are placed on function, accuracy, flexibility, and electrical safety.
Rotary motion can be measured with potentiometers configured as angle sensors, ranslational motion with linear potentiometers as path sensors.
These and other sensors provide a raw signal which is prepared, scaled and converted into a standard signal for further processing using a resistance transmitter.
Commercial position sensors have individual characteristics, which requires tedious and time-consuming adjustment of the respective resistance transmitter using otentiometers.
Furthermore, resistance transmitters up to now had a very wide modular housing and therefore occupied a large amount of space in the enclosure. For world-wide applications, several versions with different supply voltages were often used.
The universal SensoTrans R A 20230 resistance transmitters provide connection possibilities for all standard potentiometers for angle, path or position detection up to 50 kohms. They can be flexibly adapted to the respective measuring task using DIP and rotary encoder switches or via a “teach-in function“. 3-port isolation with protective separation up to 300 V AC/DC according to EN 61140 ensures optimum protection of personnel and equipment as well as unaltered transmission of measuring signals. The SensoTrans R A 20230 offer maximum performance in the smallest of spaces.
Adjusting the start and end value to the individual position sensor is particularly convenient using the “teach-in function“ – just at the push of a button on the front of the device. Sensors with known characteristics can be very easily calibrated using four rotary encoder switches and eight DIP switches.
Special measuring tasks can be solved with SensoTrans devices which Knick configures according to individual specifications. Fixed-range devices without switch are used, for example, when manipulations or mix-ups must be precluded.less