TRANSDUCERS TECHNICAL REQUIREMENTS FOR INTEGRATES AUTOMATION SYSTEM

This article is about general and technical requirements for Transducer used in Integrated Automation System or Building Automation System.

TRANSDUCERS TECHNICAL REQUIREMENTS FOR INTEGRATES AUTOMATION SYSTEM

TRANSDUCERS <Modify as required to match project design>

  1. Standard Capacity Electronic-to-Pneumatic (E-P) Transducers: E-P transducers shall be Voltage-to-Pneumatic (V-P) type, Current-to-Pneumatic (I-P) type:
    • Electrical Power Supply: 24 VAC or 24 VDC
    • Pneumatic Air Supply: 30 psig (2.07 bar) maximum
    • Air Capacity: 1100 scim @ 20 psig (300 cm3/sec @ 1.4 bar)
    • Air Consumption: Zero at steady state
    • Output Span: 0-20 psig (0-1.4 bar)
    • Input: 4-20 mA, 0-5 VDC, 1-5 VDC, 0-10 VDC, 2-10 VDC, 0-15 VDC, or 3-15 VDC input
    • Gauges: Provide with main and branch air gauges
    • Enclosure: Polymer designed for surface or panel mount
    • Air Connections: ¼ inch (6.35 mm) barbed
    • Failure Mode on Power Loss: Non-failsafe transducers shall have no output air loss.  Failsafe transducers shall exhaust output upon power loss.
    • Acceptable Manufacturers: <Confirm list>
      • Honeywell RE Technologies Model UCP-522
      • BEC Controls Corp
      • Approved equal
  2. RE Technologies Model UCP-52 Electronic-to-Pneumatic (E-P) Transducers: E-P transducers shall be Voltage-to-Pneumatic (V-P) type, Current-to-Pneumatic (I-P) type, Phase cut Type:
    • Electrical Power Supply: 24 VAC or 24 VDC, 100 mA
    • Accuracy: +/- 1 percent
    • Feedback: Branch pressure feedback from an on board pressure sensor – VDC Feedback
    • Override: Manual Potentiometer
    • Pneumatic Air Supply: 25-30 psig (2.07 bar) maximum
    • Air Capacity: .5 scim @ 20 psig (300 cm3/sec @ 1.4 bar)
    • Air Consumption: None
    • Output Span: 3-15 psig factory set field adjustable
    • Input: 4-20 mA, 0-5 VDC, 0-10 VDC, 2-10 VDC, 0-18 VDC, 0-20V Phase Cut input
    • Gauges: Provide with main and branch air gauges
    • Enclosure: NEMA 1
    • Air Connections: ¼ inch (6.35 mm) barbed brass
    • Failure Mode on Power Loss: Non-failsafe transducers shall have no output air loss.  Failsafe transducers shall exhaust output upon power loss.
    • Acceptable Manufacturers: <Confirm list>
        • Honeywell
        • TRIATEK CP-3000
        • Approved equal

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