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 media (both ports in differential 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 adjustment.
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; two wire, 4-20 mA current output
configurations with single and dual operating modes; AC-powered battery eliminator
power source; and, universal mounting brackets for panel mounting – either
front or rear mount – or, top or bottom shelf-mounting arrangements.