Setra 265 Low Differential Pressure Transducer

Setra Systems
Setra Systems

Key Features:

  • Excellent price-to-performance ratio
  • Reduce installation costs
  • ±0.25%, ±0.4%, ±1% FS accuracy options
  • 24 VDC or 24 VAC excitation
  • Voltage or analog outputs
  • Reverse wiring protection
  • Internal regulation
  • Fire retardant case (UL 94 V-0 approved)
  • CE & RoHS compliant
Product Options:

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The Setrea 265 Low Differential Pressure Transducer is a cost efficient choice to meet all the requirements in standard HVAC applications. The transducers employs a dead-ended stainless steel capacitive sensing element that demands little amplification and provides precision accuracy and lasting stability. It is capable of ±0.25%, ±0.4% and ±1% FS accuracy options with pressure ranges from 0.25” W.C. up to 100” W.C. The 265 comes equipped with an AC power option, integral mounting tabs, pressure connections on the face of the unit and a screw terminal strip for electrical termination.

The Setra 265 uses revolutionary technology with its all stainless steel capacitive sensing element.

Performance data
Accuracy RSS(1)
(at constant temp)
±1.0% FS (standard);
±0.4% FS, ±0.25% FS (optional)
Non-linearity, BFSL±0.98% FS (standard);
±0.38% FS, ±0.22% FS (optional)
Hysteresis0.10% FS
Non-repeatability0.05% FS
Thermal effects(2)
Compensated range ºF (ºC)0 to +150 (-18 to +65)
Zero shift %FS/100ºF(50ºC)±0.033 (±0.06)
Span shift %FS/100ºF(50ºC)±0.033 (±0.06)
Max. line pressure10 PSI
OverpressureUp to 10 PSI (range dependent)
Long term stability0.5% FS/YR
Warm-up shift±0.1% FS Total
Environmental data
Operating temperature ºF (ºC)(3)0 to +150 (-18 to +65)
Storage temperature ºF (ºC)-40 to +185 (-40 to +85)
Pressure media
Clean air or similar non-conducting gases.
Physical description
Pressure Fittings1/4” Fitting
CaseFire Retardant Glass Filled Polyester (UL 94-V Approved)
Weight3 oz
Elec. ConnectionScrew terminal strip
Position effect(4)
RangeZero offset (%FS/G)
0 to 0.5” W.C.0.60
0 to 1.0”W.C.0.50
0 to 2.5”W.C.0.22
0 to 5.0”W.C.0.14
Electrical data (voltage)
Circuit3-Wire (Com, Out, Exc)
Excitation/output(5)9 to 30 VDC / 0 to 5 VDC(6)
9 to 30 VAC / 0 to 5 VDC
12 to 30 VAC / 0 to 10 VDC(6)
Output impedance<100 ohms
Bidirectional output at zero pressure2.5 VDC (±50 mV)
Electrical data (current)
Output(7)4 to 20 mA(3)
External load0 to 800 ohms
Min. loop supply voltage (VDC)9 + 0.02 x (resistance of receiver plus line)
Max. loop supply voltage (VDC)30 + 0.004 x (resistance of receiver plus line)
Bidirectional output at zero pressure12 mA
NOTE: Setra quality standards are based on ANSI-Z540-1. The calibration of this product is NIST traceable.
(1) RSS of Non-Linearity, Non-Repeatability and Hysteresis
(2) Units calibrated at nominal 70ºF. Maximum thermal error computed from this datum.
(3) Operating temperature of the electronics only. Pressure media temperatures may be considerably higher or lower.
(4) Unit is factory calibrated at 0g effect of vertical position.
(5) Calibrated into 50K ohm load. Operable into 5000 ohms or greater.
(6) Zero & Span (FS) output factory set to within ±50mV (±25 mV for optional accuracies).
(7) Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.
(8) Zero & Span (FS) output factory set to within ±0.16 mA (±0.08 mA for optional accuracies.).
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  • HVAC systems
  • Energy management systems
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  • Environmental pollution control
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