Setra 264 Low Differential Pressure Transducer

SKU
2641
Manufacturer:
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:
$391.50

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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

 

Standard

Optional

Case

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

Mounting

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

Hysteresis

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

%FS/100ºF(50ºC)

±0.033 (±0.06)

Electrical Data (Voltage)

Maximum Line Pressure

10 PSI

Circuit

3-Wire (Com, Out, Exc)

Overpressure

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)

Circuit

2-Wire

Pressure Media

Output2

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

Range

%FS/G

Maximum Supply Voltage (VDC)

30 + 0.004 x (resistance of receiver plus line)

0.1 in. WC

2.3

Bidirectional output at zero pressure

12 mA8,9

0.25in. WC

1

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

0.5

1.0 in. WC

0.3

2.5 in. WC

0.2

10 in. WC

0.15

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