Setra 264 Low Differential Pressure Transducer

Setra Systems

Key Features:

  • Up to 10 PSI Overpressure
  • Installation Time Minimized w/ Mounting Options
  • Reverse Wiring Protection
  • Internal Regulation Permits Use with Unregulated DC Power Supplies
  • Fire Retardant Case (UL 94 V-0 Approved)
  • Meets CE Conformance Standards
Product Options:

Secured and trusted checkout with

Setra’s 264 is the paradigm for very low differential pressure measurement. Critical to applications in HVAC building automation, healthcare and pharmaceutical facilities, the 264 low differential pressure transducer has held a steadfast reputation for reliability and consistency for over two decades.

The 264 features a dead-ended stainless steel welded capacitive sensing element which necessitates minimal amplification and provides incomparable accuracy and long term stability. With its 3 year unconditional warranty, the 264 ensures top performance granting users peace of mind.

Versatile, the 264 provides users with different mounting options. A base mount for installation anywhere and a DINrail configuration for when applications where maximum space efficiency is essential. In addition to its advanced features and functions, Setra’s 264 is equipped with a durable physical construction, brass barbed fittings and an optional conduit cover.

Performance Data

Physical Description





Fire-Retardant Glass Filled Polyester (UL 94

V-O Approved)

Accuracy RSS1

(at constant temp)

±1.0% FS

±0.4% FS

±0.25% FS

Electrical Connection

Screw Terminal Strip

Non-Linearity,  BFSL

±0.96% FS

±0.38% FS

±0.22% FS


4 screw holes on removable zinc plated steel base (designed for 2.75” snap track)


0.10% FS

0.10% FS

0.10% FS

Pressure Fittings

3/16” O.D. barbed brass for 1/4” push on tubing

Thermal Effects

Zero and Span Adjustments

Accessible on top of case

Compensated Range ºF (ºC)

0 to +150 (-18 to +65)

Weight (approx.)

10 Ounces

Zero/ Span Shift


±0.033 (±0.06)

Electrical Data (Voltage)

Maximum Line Pressure

10 PSI


3-Wire (Com, Out, Exc)


Up to 10 PSI (Range Development)

Excitation/ Output4

9 to 30 VDC / 0 to 5 VDC5,6

Long Term Stability

0.5% FS/1 YR

Output Impedance

100 ohms

Environmental Data

Bidirectional output at zero pressure

2.5 VDC5,6

Operating Temperature3 °F (°C)

0 to +175 (-18 to +79)

Electrical Data (Current)

Storage Temperature °F (°C)

-65 to +250 (-54 to +121)



Pressure Media


4 to 20 mA8,9

Typically air or similar non-conducting gases.

External Load

0 to 800 ohms

Position Effect

Minimum Supply Voltage (VDC)

9 + 0.02 x (resistance of receiver plus line)









Unit is factory calibrated at 0g effect in the vertical position



Maximum Supply Voltage (VDC)

30 + 0.004 x (resistance of receiver plus line)

0.1 in. WC


Bidirectional output at zero pressure

12 mA8,9

0.25in. WC


1 RSS of Non-Linearity, Hysteresis, and Non-Repeatability.
2 Units calibrated at nominal 70˚F. Maximum thermal error computed from this datum.
3 Operating temperature limits of the electronics only.
Pressure media temperatures may be considerably higher.
4 Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.
5 Zero output factory set to within ±50mV (±25 mV for optional accuracies).
6 Span (Full Scale) 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 output factory set to within ±0.16mA (±0.08 mA for optional accuracies).
9 Span (Full Scale) output factory set to within ±0.16mA (±0.08 mA for optional accuracies).

0.5 in. WC


1.0 in. WC


2.5 in. WC


10 in. WC


Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account
  • Heating, Ventilating and Air Conditioning
  • Energy Management Systems
  • Variable Air Volume and Fan Control (VAV)
  • Environmental Pollution Control
  • Lab & Fume Hood Control