Product category:
Telemetry, data acquisition + loggers
News Release from: Teleflex Electronic Systems | Subject: GPSI Universal sensor interface
Edited by the Processingtalk Editorial
Team on 23 September 2004
Sensor interface converts to serial or
fieldbus
A new universal sensor interface provides a data acquisition solution for harsh environments, transforming the outputs of analogue sensors to serial or CAN fieldbus communications
TeleflexMorse Electronics has released a data acquisition module that is optimised for use in harsh environments Incorporating a user-configurable A-to-D converter, the multi-channel device transforms the outputs of analogue sensors to serial or CAN fieldbus communications
This article was originally published on Processingtalk on 6 May 2003 at 8.00am (UK)
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Called GPSI - for General Purpose Sensor Interface - it provides a data acquisition solution for any application involving extreme temperatures, shock, vibration, and exposure to liquids.
Potential applications include data acquisition and instrumentation systems in remote and exposed environments such as oilfields, on industrial processing lines, and in automobiles.
GPSI offers 10 input channels.
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Eight analogue inputs may be user-configured to measure voltage, current or resistive signals - providing a means of reading virtually any common type of sensor.
These are software-configurable to read signals in 0-2V, 0-10V, 0-5mA, 0-9.9ohm, 10-99ohm or 100-500ohm ranges - with a simple 256-point table and menu system that allows users to apply offsets, linearise and scale sensor measurements.
A further voltage input is pre-scaled to read voltages in the 8-32VDC range, providing a means of monitoring the electrical system voltage.
Two further inputs provide measurement interfaces suitable for monitoring pulse-train outputs, in 10-1000, or 12-2000Hz ranges.
This combination of signal conversion options, which may be configured for specific sensor measurements using a simple Windows-based tool, allows the data from virtually any industrial sensor to be captured and transferred to a system via an RS232 serial or CAN fieldbus port.
GPSI comes in a ruggedised case measuring 3.7x12x13cm.
The module operates over a -40 to +85C temperature range, meets the shock and vibration requirements of BS EN 60945, and is fitted with high-integrity DT-series Deutsch connectors for the sensor inputs and RS232/CANbus output connections.
The thermoplastic case with moulded connectors is extremely tough, and sealed to provide comprehensive protection, including immersion in water to a depth of 1metre.
The module also includes a 1A digital output that can be controlled via the serial link or CAN network, to actuate an external device - such as an alarm.
To complement GPSI, TeleflexMorse Electronics offers a compatible LCD panel called CANtrak that can be programmed to log and display data in units of the user's choice - with value-added calculations if desired.
In addition to the high degree of configuration flexibility built into GPSI, TeleflexMorse Electronics offers a service to programme the module for unusual applications or specific connectivity requirements.
Options include signal conditioning for unusual sensor requirements, and providing output messages in custom or standard CANbus protocols or RS485 communications.
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