The model DSA3218 is a rugged 16 channel pressure scanner in an
environmental case. It measures up to 16 gas pressures in
many applications. It can accept copper, steel or plastic tubing
with either 1/16, 1/8, or 1/4 inch Swagelok® compression fittings.
Available options include a common reference pressure or individual
reference pressures per sensor. With its optional internal heater,
it can operate down to -55 deg F environments.
Applications include gas turbine testing, compressor testing as
well as other turbomachinery tests,including refrigeration
compressor testing, etc.
The DSA3200 series pressure acquisition systems represent the
next generation of multi-point electronic pressure scanning. Model
DSA3218 Digital Sensor Array, incorporates 16 temperature
compensated piezoresistive pressure sensors with a pneumatic
calibration valve, RAM, 16 bit A/D converter, and a microprocessor
in a compact self contained module. The result is a network-ready,
Ethernet pressure scanning module.
The microprocessor compensates for temperature changes and
performs engineering unit conversion. The microprocessor also
controls the actuation of an internal calibration valve to perform
on-line zero and multipoint calibrations. This on-line calibration
capability virtually eliminates sensor thermal errors with a long
term system accuracy of ±.05% FS (5 psi & up).
Pressure data are output in engineering units via Ethernet using
TCP/IP protocol.
Scanivalve offers an optional multi-range calibration. This
allows the DSA modules to have multiple pressure ranges. The
calibration valve and transducers are manifolded in groups of 8.
The user can specify up to 3 pressure ranges within that group of 8
as long as the ratio for all 3 full scale ranges doesnt exceed 3:1
from highest to lowest range.
