Bellofram 969-710-101 Type 1500 general purpose electro-pneumatic I/P transducer converts 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
0-30 PSI
Accuracy
Linearity < 1.0%, Hysteresis < 1.0%, Repeatability < 0.5%
Pressure Ports
1/4" female NPT
Flow Rate
9.0 SCFM typical
Supply Pressure
40-150 PSI maximum
Supply Pressure Sensitivity
< 1.7% 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
18 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
General Purpose
Agency Approvals
CE mark
Field Selectable
Direct acting or reverse acting
Mounting
In-line, panel mount (bracket included)
Housing Material/Seals
Aluminum (painted)/Nitrile seals
Customer
Technical