ZPT Series

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ZPT Series

Multi-range Differential Zone Pressure Transmitters ZPT Series

Multi-range Differential Zone Pressure Transmitters


BAPI's ZPT Series zone pressure touch 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 pressure sensor with excellent accuracy, repeatability, and stability. The touch key interface allows for quick and easy menu driven set up of all parameters including auto zero, pressure ranges, output ranges, W.C. or Pascal operation, and display format of pressure, percent output, or ″On.″ You can also use the interface to create custom ranges by adjusting the upper and lower pressure endpoints.


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QtyModelDescriptionIn StockList PriceInternet Price
ZPT20LR51BBNTD PRESS TRANS,4-20MA 0 TO.1" WC, NO TUBEIn Stock426.30225.94
ZPT20LR55BBSTD PRESS TRANS,4-20MA 0 TO 1.00 WC, STATIC TUBEIn Stock426.30225.94


No accessories found
  • LCD display (can be turned off)
  • Touch interface through the cover, no more dip switches
  • Field selectable output, pressure ranges in WC or pascal operation
  • Free NIST certificate included with each pressure unit
  • 21 selectable pressure ranges
  • Adjustable pressure endpoints for custom pressure ranges
  • Voltage or current outputs field selectable

Supply Voltage:

Current Output: 7 to 40 V DC @ 20 mA

Volts Output :18 to 32 VAC @ 0.12VA, 13 to 40 VDC @ 4.9 mA

Accuracy: ±0.25% of range @72℉ (NIST included)

Signal Output :0/1-5V @ 1KΩ, 0/2-10V @ 1KΩ,, 4-20mA @ 850Ω (loop powered)

Sensor Type :Capacitive

Adjustments :(Z/S) Range select and Zero & Span from touch screen

Normal Measurement Range: 0 to 5″WC, Uni- or Bi- Directional

Display: LCD, 4 digits, 0.37″ high (readout may be neutralized)

Overpressure: (Burst) ±41.52"WC (10.34 kPa)

Max Operating Pressure :(Proof)±27.67″WC, (±6.89 kPa)

Operating Temperature :-4 to 140℉ (-20 to 60℃

Operating Humidity: 0 to 95% Non-condensing

Wetted Parts: Silicone

Media Compatibility Inert: dry air

Process Connection: 3/16″OD brass, for 1/4″ OD tubing

Wiring: 3 plug-in terminals 2-(4-20mA), 3-(Volts)

Mounting :2 or 4 , #10 screws (vertical position)

Enclosure Rating: UV-Polycarbonate, NEMA 4, (IP66)

Dimensions: 4.1″ w x 5.49 h x 2.5″ d, (10.4 x 13.9 x 6.4 cm)

Weight :1.0 lb (0.45 Kg)

Approvals: CE, RoHS

Warranty: 3 year