Features and Specifications

• +/- .08% full scale long term accuracy (5-50
  psid)
• 64 pressure inputs, option of 128 duplexed pressure
  inputs
• 45kHz scan rate (analog)
• Multiple pressure ranges available
• Vacuum, 5 inch H20 up to 50 psid pressure
  range
• Auto zero offset correction
• Purge valve incorporated into ZOC33
• Field replaceable pressure sensors

Application
The ZOC33 is designed to measure gas pressures only. It has an
analog output of +/- 0-2.5Vdc, or optionally +/-0-5Vdc to operate
with customers’ in-house data system or Scanivalve’s model
ERAD4000 (Remote A/D) or
DSM4000 (Digital Service Module) Pressure Measurement System.
The
ERAD4000 and
DSM4000 convert the ZOC33’s analog output to temperature
compensated Engineering units, and then output that data Ethernet
TCP/IP or UDP.Typical ZOC33 applications include pressure measurement on wind
tunnel tests, wind engineering tests, wind turbine validation
tests, and flight tests. An optional
ZOCTCU Thermal Control Unit is available for use in flight
tests or other extreme temperature testing. The
ZOCTCU allows the ZOC33 to operate in an environment down to
-45 deg C.

Overview
The Model ZOC33 electronic pressure scanning module is extremely
compact and accepts up to 64 pneumatic inputs and converts them to
high level electronic signals. Each ZOC33 module incorporates 64
individual silicon pressure sensors, calibration valving, a high
speed multiplexer (45kHz), and an instrumentation amplifier. An
integral “duplexing” valve is optionally available to allow the
ZOC33’s 64 sensors to service up to 128 input pressures.The ZOC33 module also incorporates a calibration valve that
allows the ZOC sensors to be automatically calibrated on-line as
well as purge the input lines of contaminants or condensation.

Three ZOC33 versions are available:

ZOC33/64Px – 64 Px inputs each with its own
dedicated sensors.

ZOC33/64PxX2 – 128 Px inputs duplexed between 64
sensors

ZOC33/64Px – Valveless (no calibration valve)