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CHAPTER 1 General Description
1.1 Overview
GLT400 is a compact, lightweight, multi-CH, and multi-purpose data logger.
There are three types of terminal units with 20 channels. By using the expansion terminal base, it is possible
to measure up to 200 channels.
The GLT400 can save the high-capacity measurement data directly in the internal memory or SD CARD.
For the PC interface, as USB and Ethernet is included as standard, system configuration according to use
is possible. As the Ethernet function is equipped with both WEB server and FTP server functions, remote
supervision and data transfer are also possible. In addition, when the wireless LAN are combined by
installing the wireless unit (option), the multipurpose remote measurement is also possible.
1.2 Features
Input
● Adoption of a pluggable M3 screw type or screwless type input terminal facilitates wiring.
● Up to 200 channels can be connected using the expansion terminal base and the terminal unit with 20
channels.
● Because that the terminals of all terminal units have a whole CH isolated, the different standard signals
can be measured at the same time.
In addition, when using the withstand high-voltage high-precision terminal, you can measure in the
environmental conditions of high withstand voltage.
Operation
● Easy operation has been achieved by eliminating the display unit and minimizing the operation unit.
Data Capture
● The high-capacity measurement data can be saved directly in the internal memory or SD CARD.
● Because the SD CARD is used as an external memory, you can measure a long period of time with peace
of mind while data backup.
● Because disk image can be used for the internal memory, multiple data can be saved.
● The new ring memory capture function maintains latest data even after capturing for a long term. (You
need to set how long you want to keep data.)
● For voltage, temperature and humidity measurements, data can be captured at sampling rates of up to
10 msec per channel by using fewer measuring channels. (Temperature measurement can be done at
sampling rates of 100 msec and higher.)
● The GLT400 is equipped with the relay recording function, and 2GByte or more data can be saved by
switching the to the other file without data missing. (When the capacity of one file reaches 2GByte, the file
is switched.)
Data Control & Processing
● The application software provided lets you set conditions and monitor data on a PC.
● The USB drive mode function enables the internal memory and SD CARD to be recognized as an external
drive by the PC.
(Set the Mode switch to USB DRIVE and then turn on the power of the GLT400.)
● The WEB server function enables control and monitoring from a remote location without using dedicated
software
● The FTP client function enables backup of measurement data to the FTP server.
● The NTP client function enables synchronization of the time with the NTP server.
● Data can be captured remotely by installing the wireless unit (option).
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