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Model 264 Low Differential Pressure Transducer
Brand: Setra Systems, IncWith millions of sensors installed world wide, Setra’s 264 is the “standard” for low differential pressure measurement in HVac building automation, high accuracy pharmaceutical and healthcare facilities.
The 264 very low differential pressure transducer uses a dead-ended stainless steel welded capacitive sensing element that requires minimal amplification and delivers excellent accuracy and longterm stability in critical installations.
The 264 has a 3 year, unconditional warranty, giving the end-user peace of mind well beyond the initial commissioning phase and guarantees performance well after the BAS warranty.
The 264 utilizes a robust design that offers brass barbed fittings, and an optional conduit cover for easy and consistent installation.
Features- Installation time minimized with mounting options
- Reverse wiring protection
- Internal regulation permits use with unregulated DC power supplies
- Fire retardant case (UL 94 V-0 approved)
Specifications
Brand
Accuracy
- ± 0.25 % of Full Scale RSS
- ± 0.4 % of Full Scale RSS
- ± 1 % of Full Scale RSS
Applications
- Energy Management Systems
- Environmental Pollution Control
- Heating, Ventilating & Air Conditioning
- Lab & Fume Hood Control
- 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-Retardant Glass-Filled Polyester
Excitation Voltage
- 9-30 Vdc
Hysteresis
- 0.10 % of Full Scale
Load
- 0 to 800 ohms - External Load
Media
- Non-Conductive Gases
- Typically Air
Mounting
- 4 Screw Holes on Removable Zinc-Plated Steel Base (Designed for 2.75" Snap Track)
Non-Linearity
- ± 0.22 % of Full Scale, BFSL
- ± 0.38 % of Full Scale, BFSL
- ± 10.96 % of Full Scale, BFSL
Operating Temperature
- -18° to 79° C (0° to 175° F)
Output
- 0-5 Vdc
- 12 mA - Bi-Directional Output at Zero Pressure
- 2.5 Vdc - 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
- inH₂O: 0 to 100
Span & Zero Adjustments
- Accessible on Top of Case
Span & Zero Effect
- ± 0.033 % of Full Scale/50° C (100° F) - Span & Zero Shift
- ± 0.06 % of Full Scale/50° C (100° F) - Span & Zero Shift
Stability
- 0.5 % of Full Scale
Static Pressure
- psi: 10 (kPa: 69, bar: 0.69) - Max.
Storage Temperature
- -54° to 121° C (-65° to 250° 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.
Tube Connection
- 1/4" Tube
- 3/16" Tube