Beta

Beta

The Beta positioner is a single or double-acting, force balanced instrument that provides fast, sensitive and accurate positioning of diaphragm or cylinder actuators. It is available with either a pneumatic module for air control signals or an electro-pneumatic (I/P) module for milliamp current control signals. Designed for high performance, this positioner is compact, field reversible and ruggedly built for reliability in severe industrial environments.

Brand: Valtek
Category: Analog
Type Electro-Pneumatic
Protocols Pneumatic, Analog
Diagnostics None
Actuator Action Linear, Rotary
Positioner Action Single (Three-Way), Double (Four-Way)
Enclosure Aluminum
Local Feedback None
Classification General Purpose, Non-incendive, Intrinsically Safe, Explosion Proof
Supply Medium Air
Output Capacity 11 SCFM at 60 psi
Air Consumption Pneumatic: 0.25 SCFM at 60 psi, Electro-Pneumatic: 0.31 SCFM at 60 psi
Temperature Range Standard: -20°F to 185°F (-29°C to 85°C), Extended: -50°F to 250°F (-45°C to 121°C)

The Beta positioner with the pneumatic or I/P module is designed to withstand 150 psi at all ports, and is relatively insensitive to supply pressure fluctuation

Field conversion from one control signal to another is easily accomplished by replacing one module with the other

Beta positioners are designed with a high natural frequency coupled with pneumatic damping – unaffected by vibrations with acceleration up to 2 G’s, and frequencies to 500 Hz

Usable with either single or double-acting actuators (both linear and rotary) makes the modular Beta positioner versatile

Calibration is easy due to minimal interaction between zero and span; positioner adjustments are totally enclosed for protection and to discourage tampering