Bellofram I/P Pressure Transducer 3-15 PSI, 4-20 mA, NEMA 4X
Manufacturer: Marsh Bellofram Corporation
Mfg Product Code: 966-710-000
Weight: 5.0 lb(s)
NEMA 4X (Includes Approvals)
1/4" IN/OUT PORTS,
ELE.CONNECTION: Terminal Block (Indoor Use / General Purpose Only)
FM, CSA and ATEX Intrinsically Safe
Bellofram 966-710-000 Type 1500 NEMA 4X electro-pneumatic I/P transducer with FM/CSA approvals convert an electrical input signal to a proportional pressure output. The pneumatic output is both linear and proportional to the analog 4-20 mA input command signal. Standard features include, small compact size, built-in volume booster, external zero & span adjustments, field reversible, low cost. All Type 1500 transducers have CE certification, can be mounted at any angle, and offer high vibration resistance. The Type 1500 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: 4-20 mA, 2 wire
- Pneumatic Output: 3-15 PSI
- Accuracy: Linearity < 0.75%, Hysteresis < 0.75%, Repeatability < 0.5%
- Pressure Ports: 1/4" female NPT
- Flow Rate: 6.5 SCFM typical
- Supply Pressure: 18-120 PSI maximum
- Supply Pressure Sensitivity: < 2.5% of span
- Supply Air: Oil free clean dry filtered air (instrument quality)
- Exhaust Capacity: > 1.0 SCFM @ 5 PSI above set point
- Low Air Consumption: 3.0 SCFH @ 15 PSI output
- Vibration: < 0.7% of span per 0.5 g-level 25-100 Hz
- Temperature Range: -20 °F to 150 °F, temperature compensated
- Zero & Span: External adjustment on front of unit for recalibration
- Electrical Connection: 1/2" conduit w/18" lead wires
- Enclosure Rating: NEMA 4X
- Agency Approvals: FM, CSA and CENELEC Instrinsically Safe, CE mark
- Field Selectable: Direct acting or reverse acting
- Mounting: In-line, panel mount (bracket included)
- Housing Material/Seals: Aluminum (painted)/Nitrile seals