Elitech DMG-4B User Manual page 29

5.The interface (Fig. 7 ) displays the current pressure value of the
system, the vacuum degree of the system and the timing of
entering this interface.
Figure 7 Vacuum test interface
Tips: This vacuuming function uses a non-professional vacuum
sensor, which can only be used to roughly observe the vacuum state
of the system. If you want to accurately measure the vacuum value
of the system, please contact our after-sales service to purchase a
professional vacuum gauge .
3.5 Offline Recording Mode
The offline recording mode can store data in the device without
Bluetooth connection, and then export it for viewing through the
APP.
Note: This function needs to be purchased before it can be used, and
the purchase method is detailed in 4.4 of this article.
1.Connect the device to the APP and enter Dashboard interface.
2.Click Settings , click Record Function .
3.Recording Interval : Click Record Interval to select the interval time.
4.Start recording : Click to Recording , the recording icon on the
device lights up and starts to flash (Figure 8 ).
The device can record up to 3000 pieces of data.
!
5.End recording : Click to Log off , and the recording icon on the
device goes out.
6.Data reading : Click Read historical data and export the data.
7.Data deletion : Click Clear historical data .