PX Series Differential Pressure Transducer–Dry Media

The digital PX Series differential pressure transducers utilize a highly accurate and stable sensor, which is microprocessor profi led for improved accuracy and reliability. The stability, accuracy and ease of use characteristics of the PX models make them the ideal product for diff erential pressure monitoring applications. Designed to monitor duct and static pressure in commercial buildings and to provide exceptional job-site fl exibility, all PX models feature four field-selectable range options allowing just two models to cover applications for 0-0.1” to 0-10” W.C. The directional mode jumper provides the means to configure the transducer in unidirectional or bidirectional mode for room and building static pressure applications. All models feature a pushbutton and digital input terminal to zero the output. A microprocessor algorithm prevents accidental zero adjustment during normal operation.

PX Series pressure transducers utilize an advanced ceramic capacitive sensing element which provides a highly stable linear output. Output off set errors due to changes in temperature, warm-up and long term drift are signifi cantly reduced compared to convention al sensors.

■ Static pressure in duct or room applications
■ Variable air volume system
■ Filter status monitoring

■ Improved tolerance to overpressure and vibration reduces field failures
■ High accuracy digital sensor maintains calibration and reduces callbacks
■ High reliability sensor technology for long-term maintenance-free operation

■ Switch-selectable ranges reduce setup time and number of models to stock
■ Microprocessor allows for a nine-point calibration increasing product accuracy and reliability
■ Brass barb fi ttings prevent breakage and accomodate popular tubing sizes
■ Built-in pickup tube simplifi es installation and saves time (duct model)
■ Circuit protection, prevents damage due to incorrect wiring

Low-differential room pressure sensor with LCD display
■ Ideal for clean rooms, hospitals, fume hoods, computer rooms, and other very low differential pressure applications
■ Monitors positive and negative pressure
■ Field-adjustable ranges for maximum resolution
■ Flush mount directly on wall or duct

Media Compatibility Dry air or inert gas
Input Power 12-30VDC, or 24VAC nominal
Output 0-5V/0-10V, Field selectable: 2-wire, loop-powered 4-20mA, (clipped and capped), or 3-wire
Pressure Ranges: 01
Unidirectional: 0.1/0.25/0.5/1.0” W.C. F.S., jumper-selectable
Bidirectional: ±0.1/±0.25/±0.5/±1.0” W.C. F.S., jumper-selectable
Pressure Ranges: 02
Unidirectional: 1.0/2.5/5.0/10” W.C. F.S., jumper-selectable
Bidirectional: ±1.0/±2.5/±5.0/±10” W.C. F.S., jumper-selectable
Mode Unidirectional or bidirectional, jumper-selectable
Display (option) Signed 3-1/2 digit LCD, indicates pressure in inches of water column
Proof Pressure 3 psid
Burst Pressure 5 psid
Accuracy ±1% F.S. Combined linearity and hys ter e sis
Temperature Effect 1” models: 0.05%/°C; 10” models: 0.01%/°C (Relative to 25°C) 0° to 50°C
Zero Drift (1-year) 1” models: 2.0% max.; 10” models: 0.5% max.
Zero Adjust Pushbutton auto-zero and digital input (2-pos terminal block)
Operating Environment 0°- 60°C; 0 to 90% RH non-con dens ing
Fittings Brass barb; 1/8” o.d.
Physical High-impact ABS plastic