LCD Displays Pressure Over the Entire Operational
Range Regardless of Which Individual Range is Selected.

  BAPI’s Zone Pressure Transmitter is an accurate, rugged and economical solution for measuring and reporting duct/building static pressure, room-to-room differential pressure or air velocities/volumes. The heart of the unit is a micro-machined silicon piezoresistive pressure sensor specifically developed for low pressure. The sensor receives a five-point error correction over the compensated temperature range for excellent accuracy, repeatability and stability – even at low pressures.
  The LCD model offers an additional level of troubleshooting and monitoring capability over the standard model by displaying the actual differential pressure over the entire operational range (-5 to +5 inches W.C. or -1,000 to 1,000 Pascals) regardless of which individual pressure range is selected for output to the system controller. If the pressure range of 0 to 1” W.C. is selected on the pressure transmitter for instance, then an actual pressure of 2” W.C. “maxes out” the transmitter output. The facility manager does not know the true differential pressure, only that it is above the 0 to 1” W.C. range. With the LCD Display model, the facility manager knows the true pressure which helps to isolate and correct the source of a pressure problem.
   The unit is available in two rugged, IP66-rated enclosures with short circuit proof outputs and reverse polarity protected inputs to perform under real world conditions. The unit installs quickly by connecting standard 1/8” or 5/32” I.D. tubing to the two pressure ports. The various Output Ranges and Pressure Ranges are all field selectable with DIP switches, and the auto-zeroing process is microprocessor-controlled for simplicity (flip a switch, wait five seconds, flip it back and walk away).

Datasheets (PDF) Zone Pressure Sensor with Display Datasheet with Ordering Grid Zone Pressure Sensor Datasheet with ordering grid List Pricing (PDF) Zone Pressure Sensor with Display List Pricing Zone Pressure Sensor List Pricing

Installation and Operation Sheets (PDF) Zone Pressure Sensor in an EU Enclosure Zone Pressure Sensor in a BAPI-Box Enclosure Zone Pressure Sensor in a Snaptrack Enclosure

VISIO Files (2002 version) Half Scale Zone Pressure Sensor with Display VISIO File (2.8 Meg) Full Scale Zone Pressure Sensor with Display VISIO File with Wiring Connections (23 Meg) VISIO Files (2003 version) Half Scale Zone Pressure Sensor with Display VISIO File (344K) Full Scale Zone Pressure Sensor with Display VISIO File with Wiring Connections (1.7 Meg)

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Pressure Probe Assemblies The Static Pressure Probe and Total Pressure Probe Assemblies connect to the BAPI Zone Pressure Sensor to provide duct static pressure or duct air velocity. The angled total probe faces into the airflow to sense the moving air’s total pressure while the static probe senses static pressure.

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Pressure Pickup Ports BAPI makes a full line of Room, Wall and Ceiling Pressure Pickup Ports, including the new Outside Air Pressure Pickup Port, to accompany the Zone Pressure Sensors. The Room and Wall units can be used for pressure alone or as a combination temperature sensor and pickup port.

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Field Mounting Kit The optional Field Mounting Kit (FMK) provides the extra room that is sometimes necessary to make a proper field wiring connection. The FMK can be attached to any sensor or device that has a 1/2" conduit hole.