Electric actuators Rematic are manufactured with enclosure IP 67 and IP 68 (8m/48 hours) so that they can be installed in various applications of general marine industry such as ships, ship buildings, docks, coastal services etc. They meet the requirements for a modulating operation with a duty cycle S4-25%, 90 - 1200 c/hour. Larger types of actuators with a three-phase motor are equipped with reverse contactors or with a contactless switching in case of large number of closures.
According to the standard EN 15714-2 the electric actuators REMATIC line meet the classification of the operation mode class C, in other words, they are designed for a modulating duty, where actuator is supposed to drive a valve to any position between fully open and fully closed one. They are equipped with an electronic control system DMS3 – REMATIC loaded with digital inputs OPEN, STOP, CLOSE and one analogue input 0/4 - 20 mA or 0/2 10 V at disposal in order to control an electric actuator by the superior control system.
Actuators can be switched off at end positions from position or from torque that is adjustable with a program depending on the size of an actuator. Blocking of the torque at the end positions as well as during motor starting is possible in case of actuators with control system DMS3-Rematic. For position monitoring electric actuators are equipped with LED position indicator (from the size 0.1).
Actuators are equipped with a function „Reaction to failure“ (Stop, Move to position Open, Move to position Closed or Move to defined position) and ESD function. Parameter setting is performed: by buttons and blinking LED diodes on the control board (9 functions) or via local control unit or by PC software (all functions). Actuators can be equipped with a local control unit with LCD display for the position monitoring, diagnostics, parameterization and local control of the actuator.
Electronic control system DMS3 is available also in version MODBUS RTU or PROFIBUS DP V0/V1. Actuators Rematic are designed for control ball valves, butterfly valves, gate valves and control valves.
