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MAMAC Systems: HVAC Duct Pressure Sensor 4.20mA - PR-276-R11-MA

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PR-276 Series Overview

  • 100% Solid‑State, Micro‑Machined, Glass‑on‑Silicon, Ultra‑Stable Capacitance Sensor
  • Duct Pressure Transducer and Static pressure Tip Integrated as One Unit
  • NIST Traceable Calibration
The PR‑276 incorporates sophisticated integrated circuits and a new micromachined glass‑on‑silicon (Gl‑Si) capacitance sensor to not only provide a high level, fully conditioned and temperature compensated output, but also to offer up to three (3) field selectable pressure ranges in one unit. The field selectable feature eliminates costly inefficiencies by providing a single unit which can be configured to cover all the pressure ranges for a particular application. For instance, 1.25", 2.50" and 5.00" wc are in one unit.


Accuracy*: ± 1% FS
Overpressure: 10 PSID  
Supply Voltage: 12–40 VDC
12–35 VAC (VDC output units only)
Supply Current:  VDC Units – 10 mA max.
mA Units – 20 mA max.
Enclosure:  18 Ga C. R. Steel NEMA 4 (IP-65)
6061T aluminum probe
Finish:  Baked on enamel – PMS2GR88B
EMC Conformance:  EN 55022, 55024, 61000-3-3,
61000-4-2, 3, 4, 5, 6 & 11
Compensated Temp Range: 25°F to 150°F (-4°C to 65°C)
T. C. Error:  ±0.0125%/°F (.02%/°C)
Operating Temp Range:  0°F to 175°F (-18°C to 80°C)
Media Compatibility:  Clean dry air or any inert gas
Environmental:  10–90%RH Non-Condensing
Termination:  Unpluggable screw terminal block
Wire Size:  12 Ga max.
Load Impedance:  3K ohms max. at 40 VDC (mA output units)
1K ohms min. (VDC output units)
Weight:  Enclosure 1.0 lbs. (.45 kg)
*Includes non-linearity, hysteresis and non-repeatability


Part Number PR-276-R11-MA
Manufacturer MAMAC Systems Inc
Weight (KG) 0.200000
Packing Unit 1 Piece
Product Availability Available on Demand
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