The LI-1400 Datalogger is often used for collecting environmental data using a variety of LI-COR Biosciences sensors. These include the LI-190 Quantum Sensor, the LI-192 Underwater Quantum Sensor, the LI-193 Spherical Quantum Sensor, and the LI-200 Pyranometer, among others. You can either program their LI-1400 to collect data automatically or set it up to collect data manually.
The LI-1400 has a power-saving mode to help conserve the batteries by turning off the instrument’s display screen. The LI-1400 enters the power-saving mode in one of two ways. It will automatically enter this mode after 15 minutes of inactivity or after the On/Off key is pressed.
It is important to note that while in power-saving mode, data is still being collected by any active log routines. This allows the LI-1400 to continue to run automatically without draining the batteries too quickly. To fully turn off the LI-1400, press the [Fct] key, then scroll with the left or right arrow key until the word “Shutdown” is displayed. Press the [Enter] key. Then press the left or right arrow key to switch from “No” to “Yes” to confirm the turn off. Press the [Enter] key again.
For more information on the LI-1400’s power saving mode and powering the LI-1400 on and off, see the LI-1400 Datalogger Manual (Section 2).