*Accuracy rating for K-type thermocouple at 100º C includes reference junction compensation. Accuracy varies by the temp levels and thermocouple types.

GL840 Models Come Standard with:

Smartphone, remote access monitoring

*Optional accessories not included

GL840 series carries two SD memory card slots. SDHC up to 32GB supported. Captured data can be stored in GBD (Graphtec Binary Data) or CSV file format.

*Figures are approximate. File size of captured data is 2GB in GBD or CSV file format on this chart. Sampling interval is limited by the number of channels in use (10ms:1ch, 50ms:5ch, 100ms:10ch). Limited sampling speed is available when digital sensors and GL100-WL are used as a remote monitoring device.

Dual port adapter connects up to two sensors for simultaneous interface

GL840 (configuration example) shown with dual port adapter (GS-DPA), CO2 sensor & illuminance/UV sensor

GL100 SENSORS

Available sensors/terminals to measure various signals with the GL840 datalogger.

GL100 INPUT TERMINALS

Available input terminals and adapters for GL100

GL840 is WLAN ready with optional WLAN Unit B-568

Wireless LAN option enables wireless communication with other devices. Connects to the GL100-WL remotely when the GL840 is set as an access point. When the GL840 is set as a station, PCs and smart devices will be able to access the WLAN enabled GL840 directly.

Combine GL840 and GL100-WL

You can expand your measurement variety by adding the sensors available on the GL100-WL unit.
The measured value by GL100-WL will appear in a single file along with the measurement value from the GL840 main inputs. GL840 will now take in direct information from the GL100-WL units. GL840 supports up to five units of the GL100-WL.

GL840 can use up to five units of GL100-WL as its remote sensor

Advantageous Functions & Features

FTP Client Function: Captured data is periodically transferred to the FTP server for backup.
NTP Client Function: The clock on the GL840 is periodically synchronized with the NTP server.
(The GL840 requires connection to a LAN environment using the Ehternet/WLAN ports for networking functions)