Atlantik Elektronik Mühendislik

Koşul

In industrial processes where liquids, air or gases are used, valves are needed for dosing and control. These valves are seldom operated manually. Pneumatic valve actuators are normally used for mechanical positioning. The valve position must be monitored electronically. On the one hand to provide a feedback to the controller when a certain position (e.g. "open" or "closed") is reached. On the other hand it is necessary to monitor the valves centrally.

Geri dönüşüm
The devices in the IND range contain two inductive sensors for "open / close"

detection of an actuator movement by means of target pucks. The digital output controls the solenoid valve for the pneumatic quarter-turn actuator. The AS-i connection allows direct connection to the yellow flat cable via an M12 insulation displacement connector. LEDs serve as switching status indicators for inputs and outputs.

Müşteriye sağladığı yararlar
By using state-of-the-art production technologies it has become possible to incorporate the latest AS-i technology with sensors and switching outputs in a space-saving housing. Mounting is effected using two screws on the quarter-turn

actuators, standardised to VDI / VDE 3845. Combined periphery fault and communication error LED at the module provide the user with two important signals during set-up and operation. Two data bits for the first time allow separate evaluation of the "short circuit" and "wire break" situations on the output to generate even more targeted service information. An added value package contains all parts needed to control a pneumatic quarter-turn actuator - including the solenoid valve. All these features facilitate mounting, set-up and maintenance for the user and increase uptime of the whole AS-interface system.

Koşul

Rising stem valves must signal their positions ("open" or "closed") to the controller. The implementation of the detection of intermediate positions by means of an analogue signal has been very complicated so far, e.g. by means of linear measurement.

Geri dönüşüm
efector valvis was designed for feedback of the valve positions on rising stem valves with a stroke of up to 80 mm. The sensor is fitted over the valve spindle and continuously measures the stroke. Previously selected switch points transmit the

actual limits of travel to the controller. The sensor signals up to three valve positions to the controller: valve open, valve closed and any position in-between, e.g. seat lift. Furthermore, the resolution of the measuring distance of 0.2 mm allows condition-based maintenance of the valve seals. This way the maintenance intervals can be adapted to the actual wear, which in turn increases life and uptime.

Müşteriye sağladığı yararlar
With its precise valve feedback, efector valvis enables reliable fluid control. No switching signal is lost, even in case of a shrunk or swollen valve seal. Given that the valve plunger is entirely covered by the adapter, the risk of injury is minimised at this point. Furthermore, the analogue signal enables a precise valve control.