Logger uses low-cost USB Flash drive

Paul Boughton

Grant Instruments is introducing the Datataker DT81, which is claimed to be the world's first data logger with USB Flash drive support, which allows the use of low-cost USB memory sticks to unload, control or reprogram multiple loggers.

The DT81 is a robust, standalone, low-power and cost-effective data logger. With support for SDI-12 sensor networks, Modbus for connection to any SCADA-based system, and with web-enabled features, the DT81 is suitable for the most challenging environmental or industrial monitoring projects.

Up to 5 million data points can be stored in a secure, non-volatile internal 64MB memory with user control available for multiple data files, overwrite modes, alarm histories and automatically archived event records. The new logger also features RS232, Ethernet, USB and USB memory stick ports, together with modem dial-in and dial-out functions. TCP/IP is supported, enabling communications over a local or wide area network.

The DT81's universal analogue input channels can automatically select measurement ranges based on the signal level. These channels are isolated and over-voltage protected to ensure reliable measurements in harsh conditions. Supported measurement and sensor types include temperature, DC voltage, 4-20mA current loops, resistance, bridges, strain gauges and frequency - all returned in engineering units of the user's choice. Switchable excitation and triggering are provided on all channels to simplify wiring and installation.

Furthermore, universal digital channels include 100 kHz counters, input, output and a phase encoder. Other features range from triggers for conditional or event logging, to a latching relay output to control or power external devices.

All of Grant Instruments' products come with a three-year warranty. OEM versions of most products are available on request.

For more information, visit www.grant.co.uk


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