SPACE STATIC PRESSURE SENSORS TECHNICAL REQUIREMENTS FOR IAS

This article is about general and technical requirements for Space static pressure sensors used in Integrated Automation System or Building Automation System.

SPACE STATIC PRESSURE SENSORS TECHNICAL REQUIREMENTS FOR IAS

Space static pressure sensors <Modify as required to match project design>

1. 1. Shielded Static Pressure Sensor

      1. Provide for each zone where required a shielded static pressure sensor suitable for ceiling surface mounting, complete with multiple sensing ports, pressure impulse suppression chamber with minimum volume of 48 cubic inches, airflow shielding, and 3/8″ compression takeoff fittings, all contained in a welded stainless steel casing, with polish finish on the exposed surfaces.
      2. These probes shall be capable of sensing the static pressure in the proximity of the sensor to within 1% of the actual pressure value while being subjected to a maximum airflow of 1000 feet per minute from a radial source.
      3. The shielded static sensing devices shall be used for both reference and space pressure sensing.
      4. Pressure sensors used for outside air pressure reference purposes shall be equipped with a conduit seal for pneumatic tubing and bushings for a weather tight installation.

   2. Static Pressure Traverse Probe

      1. Provide multipoint traverse probes in the duct at each point where static pressure sensing is required.
      2. Each duct static traverse probe shall contain multiple static pressure sensors located along the exterior surface of the cylindrical probe. Pressure sensing points shall not protrude beyond the surface of the probe.
      3. The duct static traverse probe shall be of 304 stainless steel construction and (except for 0.75 inches dia. probes with lengths of 24 inches or less) be complete with threaded end support rod, sealing washer and nut, and mounting plate with gasket and static pressure signal fitting. The static traverse probe shall be capable of producing a steady, non-pulsating signal of standard static pressure without need for correction factors, with an instrument accuracy of 21.
      4. Acceptable Manufacturers: <Confirm list>
         • Honeywell
         • STAT-Probe/l
         • Brandt; B-SSK 8000
         • Setra
         • Approved equal

   3. Intelligent Static Pressure Sensor:

      1. • Intelligent sensors using network communications to transmit data and shall meet the following characteristics:
         • Low pressure type (0 to 125 Pa) differential pressure transmitter.
         • Integrated <LonWorks, BACnet>
         • Integral power supply for transmitter controller and transceiver.
         • Accuracy: +/- 1% full scale