Graphtec GL820 multichannel data logger

The Graphtec GL820 midi logger features 20 analog input channels, which can be expanded up to 200 channels.

Suitable for evaluation and site testing, the general-purpose data logger enables simultaneous capture of a range of real-time data from process signals, voltage, temperature and humidity sensors with additional inputs for pulse and logic. The 20 multifunction input channels are individually isolated to eliminate the possibility of signal corruption. Data is available in a smooth waveform or digital text form.

Users can add 20-channel extension terminal kits to expand the number of channels up to 200. If more channels are needed, users can activate up to 500 channels by specifying PC measurement.

The instrument features a 14.5 cm colour LCD and provides fast sampling rates for voltage measurements and up to 10 ms sampling interval when the number of channels in use is limited. A scaling function can be adjusted to measure relative temperature.

A built-in 2 GB flash memory enables secure long-term data measurement. Data can be saved directly to a USB memory stick that can be replaced during measurement without fear of data loss.

The instrument can be controlled remotely by a PC or web browser, allowing users to monitor and transfer data directly to a PC in real time. The captured data can be exported directly into Excel with its standard software.

Compact and portable, it weighs 900 g and is claimed to be one of the lightest data loggers in its category. Ergonomic and simple to navigate, single touch buttons eliminate the need for complicated menu trees.

The instrument is supplied with two rechargeable batteries for up to 7 h of operation, AC power adapter, USB cable, software and carry case.