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ANALOGUE RECORDING MODULE (ARM). * Data Acquisition / Logging Module * Rugged & Compact * Self-Contained * Modified & Custom Designs The Astech ARM is a self-contained unit which records transducer or sensor data and is small enough to install at the actual measurement location. Analogue signals connected to it are stored in memory at selectable sample rates which can range from 10,000 per second to one every 30 minutes, making the ARM suitable for dynamic or slowly changing data - or a combination of both since fast and slow channel sample rates can be mixed. A memory capacity of 262,000 measurements (524,000 with the non-IR version) provide a useful recording time period, even at fast sample rates. A high speed bi-directional infra-red link is used for communication between the ARM and laptop/PC, eliminating cabling and the need to make any physical connection. Valid operation of the link is indicated by LEDs on the infra-red transceiver interface unit and the ARM. Alternatively a direct RS232 connection is available. The infra-red communications link provides important advantages and benefits: * Cable-free input of setup data and downloading of stored measurements - especially useful when the ARM is installed at inaccessible locations. * Up to 2 Metre isolation enables measurements from high-voltage and other hazardous areas. * Remote start/stop of recording and resetting using handheld transceiver unit. * Measurements can be transmitted through sealed glass enclosures and fluids. An important feature of the ARM is the ability to survive and function under hostile operating conditions. Suitability for a wide range of measurement environments is ensured by providing a choice of two types of housing - a lightweight ABS enclosure or an IP67 sealable diecast enclosure. A recent application was a custom design ARM for the measurement of strain and temperature on a conveyor belt whilst passing through a refrigerated section at -60°C. Internal heaters ensure that the battery is maintained within its working temperature range. ________________________________________________________ For further information, please contact:- Astech Electronics Ltd. August 2005
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