General Description
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 (50 kHz), and an instrumentation amplifier. An integral "duplexing" valve is available to allow the ZOC33's 64 sensors to service up to 128 input pressures.
The integral calibration valve has 4 modes of operation: operate, calibrate, purge, and leak test. Each group of 8 pressure sensors has its own calibration valving and multiplexer which allows the ZOC33 module to incorporate multiple pressure ranges and easy sensor replacement. This calibration valve allows the ZOC sensors to be automatically calibrated on-line.
The ZOC33's extremely compact design (approximately .1 cu. in. per channel) permits installation within the very confined spaces typically available in wind tunnel models.
Three 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)
Applications
The ZOC33 electronic pressure scanning module is specifically designed for use in wind tunnel and flight tests where operational conditions are very space constrained and pressures do not exceed 50 psi. It is ideal for use inside small supersonic wind tunnel models.
It may be mounted in any position so the pressure sensors may be close coupled to the pressure sources to be measured. A removable header allows for easy installation and removal without breaking the pneumatic lines. When the ZOC33 is used for flight test, it must be installed in a thermostatically controlled heater jacket.
The ZOC33 module is designed to be used in conjunction with our Model RAD3200 Remote A/D or our Model DSM3200 Digital Service Module. Each ZOC33 pressure scanner incorporates an embedded RTD to monitor the temperature of the pressure sensors. The RAD3200 communicates via USB. The DSM3200 communicates via TCP/IP, RS-232, or ARINC 429. The ZOC33 is also designed to operate with Scanivalve's Module Address Control Unit (MACU2), as well as customers' "in-house" data systems.
* Duplexing shares 2Px inputs with one pressure sensor. This doubles the usefulness of a ZOC33 module without increasing the installation volume. Px = Pressure Input
