Bellofram E/P Pressure Transducer 3-15 PSI, 1-9 VDC
Manufacturer: Marsh Bellofram Corporation
Mfg Product Code: 961-085-000
Weight: 6.0 lb(s)
The Bellofram 961-085-000 Type 1000 electro-pneumatic E/P transducer converts an electrical input signal to a proportional pressure output. The pneumatic output is both linear and proportional to the analog 1-9 volt DC input command signal. Bellofram's most popular general purpose transducer combines performance, reliability, and value for many precision control applications. Features include a small size, built-in volume booster, external zero & span adjustments, and field reversible operation. All Type 1000 transducers can be mounted inline or use the wall/panel mounting bracket which is included with each unit. The Type 1000 is a force balanced device in which the coil is suspended in the field of a magnet by a flexure. Current flowing through the coil generates axial movement of the coil and flexure. The flexure moves against the end of a nozzle, and creates a back pressure in the nozzle by restricting air flow. The back pressure acts as a pilot pressure to an integral booster relay. Consequently, as the input signal increases (or decreases, for reverse acting), output pressure increases proportionally. Applications include valve actuators & positioners, HVAC systems, clutches & brakes, paper handling, textile processes, and many other industrial applications where precise pneumatic control is required.
Features
- Electrical Input Signal: 1-9 Volts DC
- Pneumatic Output: 3-15 PSI
- Accuracy: Linearity < 1.0%, Hysteresis < 1.0%, Repeatability < 0.5%
- Pressure Ports: 1/4" female NPT inlet & outlet
- Gauge Ports: 1/4" female NPT (located on front & back of unit)
- Flow Rate: 4.5 SCFM @ 25 PSI supply pressure, 12 SCFM @ 100 PSI supply
- Supply Pressure: 100 PSI maximum
- Supply Pressure Sensitivity: < 0.1% of span per PSI at midrange
- Supply Air: Oil free clean dry filtered air (instrument quality)
- Low Air Consumption: 0.1 SCFM @ midrange
- Vibration: Minimize vibration for maximum pressure stability
- Weight: 2.1 pounds
- Temperature Range: -20 °F to 150 °F
- Zero & Span: External adjustment on front of unit for recalibration
- Electrical Connection: 1/2" conduit with 18" wire leads - CE rated
- Field Selectable: Direct acting or reverse acting
- Mounting: In-line, wall/panel mount (bracket included)
- Housing Material/Seals: Aluminum (painted)/Nitrile seals