Graphtec GL820 midi logger

The GL820 midi logger from Graphtec features 20 analog input channels as standard and can be expanded up to 200 channels.

Suitable for evaluation and site testing, the general-purpose data logger allows users to simultaneously capture a broad range of real-time data quickly and easily. The 20 multifunction input channels are individually isolated to eliminate the possibility of signal corruption and they can capture data from process signals, voltage, temperature and humidity sensors with additional inputs for pulse and logic.

For a greater number of channels users can add on 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. It provides faster sampling rates for voltage measurements and can achieve a 10 ms sampling interval when the number of channels in use is limited.

The device also features a scaling function in the temperature measurement that can be adjusted by the operator to measure relative temperature.

The device’s 2 GB flash memory enables secure long-term data measurement without the need for an external storage device. The logger can also save measured data directly to a USB memory stick that can be replaced during measurement without data loss.

The device can be controlled remotely by a PC via a USB cable or a web browser via ethernet. The 14.5 cm wide TFT colour LCD presents data in a waveform or digital text form.