The GL840-WV is fitted with 20 channels as standard but can be expanded from 20 channels to 200 channels with the optional B-566 and B-565 expansion modules. A total of 500 channels can be monitored via the Graphtec APS software and up to ten GL840-WV units can be networked as a complete data logging solution.
The Graphtec GL840 data logger supports two SD memory card slots for data storage. The SDHC type SD memory card is supported up to 32GB. A 4GB SD memory card is supplied as a standard accessory and installed in the first SD memory card slot.
The captured data can be stored in GBD(Graphtec binary data) or CSV file format. The binary data format is more robust and a lot more compacted than the CSV format. The CSV format has the direct advantage in that it can be opened directly in MS Excel or other data analysis software programs.
The bright, easy-to-read 17.8cm(7") TFT colour LCD monitor (VGA: 800 x 480 dots) makes it even easier to review measurement parameter settings, measured waveforms, and digital values.
All the GL840's functions can be accessed through the navigation cluster and LCD screen. Single touch buttons for such tasks as display mode, setup and logging start/stop negate the need for complicated menu trees.
Type: General purpose data logger.
Channels: 20 - expandable to 200.
Inputs: Voltage, Current*, Temperature, Humidity and Logic I/O.
Speed: 10ms to 1hr.
Resolution: 16bit.
Data Storage: Removable 4GB SD card memory.
PC Connection: Ethernet & USB 2.0.
Data transfer: SD memory card or direct to PC.
Power: Internal Battery or External 8.5~24 volts DC.
Software: Software included and freely available via download.
