HOME > Pressure >Gauge & Differential Manometer


Gauge & Differential Manometer
Portable and Self Contained Digital Pressure Manometer

The PS309 is a portable, completely self-contained digital pressure manometer, available in absolute, gauge and differential ranges. In addition to the front  panel liquid crystal digital display, the unit also provides a 2 Vdc analog output suitable or recording, remote display or control purposes.

Featured are an integral variable reluctance  transducer, solid state electronics module, 3½ digit liquid crystal display (LCD)* and battery pack with six 1.5V penlight cells for truly portable operation. The units can also be powered from an external DC power  supply or AC battery eliminator (converter) module.

The transducer features all corrosion resistant materials in contact with the pressure madia (both ports in differental units), very low internal cavity volumes and ultra-low volumetric displacement with full-scale pressure excursion. Transducer calibration is unaffected by dielectric properties of the sensed fluid. Gauge and differential transducers may be disassembled and range changed by simple diaphragm replacement. 

Individual meter scaling adjustments are provided for both single and dual operating modes which permit display of output in any popular engineering or scientific pressure and flow units. Decimal points are user-programmable by easy internal ajustment.

Optional features include switch-selected dual operating modes – “Pressure” (output linear with applied pressure), and “Flow” (output proportional to square root of D P), each with a separate 2 Vdc analog output and individual display scaling adjustments; twowire, 4-20 mA current output configurations with single and dual operating modes; AC-powered battery eliminator power source; and, universal mounting brackets for anel mounting – either front or rear mount – or, top or bottom shelf-mounting arrangements. 


  • Portable, Lightweight Construction
  • Internal Battery Operation or Optional AC Converter
  • Absolute Gauge and Differential Ranges – 0.08 psi FS to 3200 psi FS
  • All Surfaces in Contact with Media are Stainless Steel
  • 2 Vdc Analog Output Standard
  • Include 2-wire, 4 to 20 mA Current Output
  • Mode Switch for Linear/Square Root Outputs