Overview:
The Graphtec Data Logger Gl840 Voltage and Thermocouple Data Logger system have 20 isolated analogue input channels that are expandable up to 200, four discrete inputs, and four discrete outputs with exceptionally flexible triggering conditions. Use the GL840 either standalone (with a built-in battery compartment) or in conjunction with a USB or Ethernet connection.
The Model GL840 Series is a 3rd gen data logger with an excellent price/performance ratio. It has 20 analogue channels that are expandable up to 200 channels and four discrete outputs and inputs. Its discrete input set it as either logic or pulse inputs as a group.
Features of Graphtec Data Logger Gl840:
Each of the four channels is adjustable to measure frequencies or count when tuned for a pulse. Alarms are usually triggered by several simply specific analogue and discrete input channel conditions. They usually represent four discrete outputs. A connection between the direct voltage in the range of 20 mV to 100 V wide scale across 12 degrees, a direct connection with a thermocouple of any kind, or a 3-wire PT100 or PT1000 RTD is usually measurable in the form of any of the 20 GL840 analogue input channels.
Each analogue input channel on the Graphtec Data Logger Gl840 is electrically separatable. Either from the other channels or the power ground, allowing for off-ground observations using shunts as well as driven or ground thermocouples. The GL840-M model can support up to 60 Vp-p standard modes. The triggering flexibility of the Graphtec Data Logger Gl840 is its most powerful feature. Data recording may be mostly initiable or terminable separately based on analogue and discrete signal level (single or windowed mode), alarm, date and time, and weekday.
Triggers can also be set to work only once or to repeat automatically. The GL840’s capacity to adapt to nearly any desired trigger circumstance enables the instrument to function unattended for extended periods with total autonomy.
Usage of Graphtec Data Logger Gl840:
The Graphtec Data Logger Gl840 may be either usable in linking with a PC or completely standalone. A regular Ethernet, USB, or additional wireless connection is usually made to connect to a PC. Each connection method may make use of included PC-side software to set up, collect, visualize, and record digitised data for direct storage to the PC’s HDD.
After recording, data obtained may be accessible for examination and analysis, including the option to transfer to Microsoft Excel. Using the GL840’s built-in Ethernet connector or wireless option activates the instrument’s networking functionality. It allows it to be completely programmable and administered using any computer or smartphone’s standard Web browser.
Conclusion:
The GL840 includes 4 GB of non-volatile storage built inside the instrument. If more storage is still necessary, the instrument includes an external SD card slot to help with the storage.
The Graphtec Data Logger Gl840 measuring range further expands by the inclusion of GS Sensor accessories, which may be most relatable to the Gl840 or electronically accessible using the GL100-WL and the B-568 wireless option. GS Sensors may monitor temperature, humidity, CO2, illuminance, acceleration, AC, and more.