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Model 265 Low Differential Pressure Transducer

Brand: Setra Systems, Inc

Setra’s Model 265 is a lower price solution that offers an excellent price to performance ratio and meets the requirements in all typical HVAC applications.

The 265 is a low differential pressure transducer that uses a dead-ended capacitive sensing element that requires minimal amplification and delivers excellent accuracy and longterm stability.

It delivers ±0.25%, ±0.4% and ±1% Full Scale accuracy options with pressure ranges from 0.25” W.C. up to 100” W.C. The 265 has a small footprint, an AC power option and an optional conduit cover that allows for simple, secure installation for any applications.
Features
  • Voltage or Analog outputs
  • Reverse wiring protection
  • Internal regulation

Specifications

Accuracy

  • ± 0.1 % of Full Scale - Warm-Up Shift
  • ± 0.25 % of Full Scale RSS
  • ± 0.4 % of Full Scale RSS
  • ± 1 % of Full Scale RSS

Applications

  • Energy Management Systems
  • Environmental Pollution Control
  • HVac Systems
  • Static Duct & Cleanroom Pressures
  • Variable Air Volume & Fan Control

Approvals & Certifications

  • CE
  • UL 94

Compensated Temperature

  • -18° to 65° C (0° to 150° F)

Electrical Connectors

  • 1/2” Conduit
  • 2-Wire - Circuit
  • 3-Wire - Circuit
  • Screw Terminal Strip

Enclosure, Body Material

  • Fire Retardent Glass-Filled Polyester

Excitation Voltage

  • 12-30 Vdc
  • 24 Vac
  • 24 Vdc
  • 9-30 Vdc

Hysteresis

  • 0.10 % of Full Scale

Load

  • 0 to 800 ohms - External Load

Media

  • Non-Conductive Gases
  • Typically Air

Non-Linearity

  • ± 0.22 % of Full Scale, BFSL
  • ± 0.38 % of Full Scale, BFSL
  • ± 0.98 % of Full Scale, BFSL

Non-Repeatability

  • 0.05 % of Full Scale

Operating Temperature

  • -18° to 65° C (0° to 150° F)

Output

  • 0-10 Vdc
  • 12 mA - Bi-Directional Output at Zero Pressure
  • 2.5 Vdc (± 50 mV) - Bi-Directional Output at Zero Pressure
  • 4-20 mA

Output Impedence

  • < 100 ohms

Overpressure & Static Pressure Limits

  • psi: 0 to 10 (kPa: 0 to 68.95, bar: 0 to 0.689)

Pressure Range

  • Inches WC: 0 to 100

Span & Zero Effect

  • ± 0.033 % of Full Scale/50° C (100° F)
  • ± 0.06 % of Full Scale/50° C (100° F)

Stability

  • 0.5 % of Full Scale/YR - Long Term Stability

Static Pressure

  • psi: 10 (kPa: 69, bar: 0.69) - Max.

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Supply Voltage

  • 30 Vdc + 0.004 x (Resistance of Receiver Plus Line) - Max.
  • 9 Vdc + 0.02 x (Resistance of Receiver Plus Line) - Min.

Zero Offset

  • 0.14 % of Full Scale/G
  • 0.22 % of Full Scale/G
  • 0.5 % of Full Scale/G
  • 0.6 % of Full Scale/G
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