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.
Additional information
| 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) |
Features & Benefits
- 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
