Johnson Controls EP-8000-3 Transducer

The Johnson Controls EP-8000-3 is a precision electro-pneumatic transducer designed to convert a proportional 4-20 mA analog input signal into a linear 3-15 psig pneumatic output. As a low-volume, non-relay model, this unit is engineered for direct control of small pneumatic actuators or as a pilot for high-capacity relays. Its compact, surface-mount design allows for versatile installation in existing pneumatic control systems, making it a reliable choice for HVAC automation and industrial process control upgrades. The EP-8000 series is known for high-linearity performance and minimal hysteresis, ensuring accurate pressure regulation across the full signal range. By integrating an E to P transducer with field-proven reliability, technicians can maintain tight tolerances in damper and valve positioning. This transducer is a cost-effective solution for facilities transitioning from electric to pneumatic control logic without replacing the entire infrastructure.

Technical Specifications & Benefits

• Input Range: Standard 4-20 mA DC signal compatible with most modern DDC controllers.
• Output Pressure: Low-volume 3-15 psig range for precise small-scale actuation.
• Control Type: Non-relay output optimized for low air consumption and pilot duty applications.
• Installation: Lightweight polymer housing with common pneumatic porting for rapid field replacement.
• Application: Ideal for modulating VAV box controllers and small pneumatic actuators.

Common Questions

Can the EP-8000-3 drive a large valve actuator directly?
As a low-volume non-relay transducer, this model is best suited for pilot signals or small actuators. For large-bore actuators requiring high CFM, it should be paired with a volume-boosting relay.

What is the primary difference between the EP-8000 series and the EP-1110?
The EP-8000-3 offers a more compact footprint and modern electronic integration compared to older 1110 legacy units, providing improved response time in analog to pneumatic conversion.

Does this unit require a specific mounting orientation?
While versatile, the EP-8000-3 should be mounted in accordance with the manufacturer's vertical alignment recommendations to ensure maximum linearity and to prevent moisture buildup in the pneumatic circuit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.