Bellofram 966-710-100 Type 1500 electro-pneumatic I/P transducer with FM and 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 the CE mark, 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.
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
20-120 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
Max. Air Consumption
3.0 SCFH @ 15 PSI output pressure
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
Terminal block
Electrical 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
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