TENTECH MD-5075x, User Manual

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8.7. Internal memory
This equipment has an internal memory for up to 4000 measured values
(approx. 280 DAI tests or 30 PI tests). This memory is administrated by
the instrument and works in a cyclic way, this means, when the memory is
full, the oldest values in the memory will be replaced by the newest ones.
To avoid lost of data, always download the internal memory after finish
the measurements.
8.8. Battery status check
Hold the key pressed in order to check the battery status during
measurements. The analogue bargraph will give an approximate visual
representation of the remaining charge percentage; additionally, the
display will show the message “
Battery OK ” if the charge is enough, or
“ Battery Low ” if the charge is low. In this last case, it is highly advisable
to charge the battery before using the apparatus. If battery charge is
under 20% of the total, the message
Battery Low will automatically
appears on the display.
8.9. Auto power-off
The MD-5075x auto-turns off after 10 minutes of inactivity, or after 95
minutes of measuring without checking the battery status.