The actuator series ExTensor and Tensor²+ Zone 2 and 22 from ARIS Stellantriebe GmbH is based on the well-known and proven benefits of the Tensor2 series. This is a high-precision, multi-turn, electronically controlled actuator with contactless, wear-free position detection. Typical applications are the adjustment of butterfly, ball, control and other valves, linear control units and dosing pumps. The actuators are used as rotary and part-turn actuators. All parameters of the actuator are fully electronically configurable. The intuitive menu navigation is conveniently shown on an OLED display. The mechanical power transmission takes place via a low-backlash metal gear unit, which is driven by a fully controllable BLDC motor. It goes without saying that these are extremely smooth-running and wear-resistant. The gear unit is maintenance-free with life-long lubrication. Due to externally mounted gear extensions (substructure gear stages, spur gear stages and plane tary stages), a power extension of up to 500 Nm is possible. The ARIS ExTensor actuator series is approved for operation in potentially explosive atmospheres, in accordance with ATEX Directive 2014-34-EU, and conforms to IECEx.