CMA / CML linear output compact modulating actuators are an all-electric solution for control valve and pump applications. Exact position control and continuous modulation with accurate and repeatable position control with up to 0.1% accuracy. Certified explosion proof to international standards and available with optional local controls and Reserve Power Pack.
Linear, part-turn, and multi-turn control valve actuators.
Features:
- Easy configuration using internal keypad and display
- Fail safe design with super capacitor back up
- FM approved, C1D1 Rated
- Rated for continuous modulation service
- Manual mechanical override
- Local controls and display
- Suitable for linear control valves in 1”-12” 600/900# size range is all ratings
- Precision control and eliminates PID loop overshoot
- Eliminates bleed gas emissions from venting pneumatic positioners and freezing concerns
- 120,240 AC and 24 volt DC power options
- Various control inputs which include 4-20 ma signal and pulse raise low using digital RIRO card
- Linear output drive with up to 20 kN (4,500 lbf) seating thrust and up to 13.3 kN (3,000 lbf) modulating thrust
- Stroke length of 114.3 mm (4.5”)
- Fully enclosed ball screw drive train for increased reliability and efficiency at higher thrust
- Zero stick slip during operation
- Accurate and repeatable position control using 4 to 20 mA signal withup to 0.1% accuracy
- Explosion proof to international standards
- Adjustable speed control
- Manual override standard
- Suitable for mounting in any orientation
- Permanently lubricated, maintenance-free drive train
- Wide standard ambient temperature range -30 to 70 °C (-22 to 158 °F) with low temperature option available
- Brushless DC motor provides reliable, accurate, continuous modulation capability
- Encoder technology provides dependable contactless feedback
- Less than 1 watt standby power
- Suitable for 1-phase or DC power supplies
- Built-in interface allows for quick and simple setup via six-segment LCD display and push buttons
- Integral local controls with LCD positional display
- Optional Reserve Power Pack (RPP) supercapacitors for fail-to-position functionality
- Compatible with a wide variety of fieldbus, hardwired and analogue site systems
- Fieldbus options including HART®, Foundation Fieldbus®, Profibus®, Pakscan™, RIRO, DeviceNet® and Modbus®
