Features and Specifications
- THE DSM3400 HAS BEEN SUPERSEDED BY THE DSM4000 AND IS NO LONGER AVAILABLE. PLEASE VIEW THE DSM4000 PAGE FOR MORE INFORMATION.
- Sample rates up to 625 samples/channel/second
- Accepts up to 8 ZOC22b, ZOC33, and ZOC17 pressure scanners
- Communication is Ethernet TCP/IP or UDP, 100baseT plus RS232
- Optional ARINC429 interface for Flight test
Application
DSM3400/Ethernet
The DSM3400 is designed to connect cable serviced ZOC pressure scanners (ZOC17, ZOC22B, and ZOC33) to the intelligent world of an Ethernet network. The module is powered by 12 or 24Vdc. One DSM3400 accepts up to 8 ZOC pressure scanners. It is used in wind tunnel testing when the pressure measurment system is mounted outside of the wind tunnel. When ZOC pressure scanners are intended to be mounted inside a wind tunnel model, the Remote A/D (RAD) module is ideally suited. It operates similarly to the DSM3400 except the A/Ds are remotely located in the wind tunnel model. Communication is Ethernet 100baseT. Multiple DSMs can be placed on one network.
Flight Test/ARINc429
The flight test version of the DSM3400 is the same as above except it has an additional ARINC429 card as well as the 100baseT Ethernet port for communication, setup, and diagnostics.
Overview
The Digital Service Module, Model DSM3400, is an intelligent module designed to interface ZOC electronic pressure scanners to an Ethernet network. The Model DSM supports up to 8 cable serviced ZOC electronic pressure scanners or ZOCEIM electrical input modules. The DSM3400 service module incorporates an embedded PC, eight 16 bit A/D converters, RAM, and flash memory. The DSM microprocessor performs engineering unit conversion and compensates for temperature changes, thereby reducing thermal errors from the ZOC pressure sensors. The microprocessor can also control external solenoid valves (Model DSMCPM) or user’s valves to perform automatic on-line zero and span calibration. This on-line calibration capability virtually eliminates sensor thermal errors. System accuracy of ±0.08% FS ( 5 psi and up) is achievable. Pressure data are output in engineering units via Ethernet 100baseT using TCP/IP protocol or optional ARINC429.
