MITECH MH320, User Manual, Page: 21 / 27

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It would display the average value after
measuring 5 times.
Press key
【 】
or key
【 】
to input the nominal
value.
Press key
【
ENTER
】
to confirm.
Press key
【
ESC
】
to cancel this operation.
Range of adjustment: ±15HL.
6.12 EL Background Light
With the background light, it is convenient to work in the dark condition. Press key
【 】
to switch on or
switch off the background light at any moment as you like after power on.
6.13 Auto Power Off

The instrument has the function of powering off automatically to save power.

The system would power down automatically if there’s neither measuring nor any key operation
within 5 minutes. Except key
【 】
, press any key could stop the twinkle of LCD screen and stop the
operation of power off at the moment.

While the voltage of the battery is too low, the screen will show < Battery Empty!>, then power off
automatically.

When the instrument is being charged, the Auto Power Off will not function.
6.14 Paper Loading

Hold Both ends of the paper
compartment with fingers and open the
compartment cover with moderate
strength.

According to the illustration, put the
paper into the paper compartment with
attention to the paper direction. If the
paper is misplaced, the instrument will
fail to print.

Pull a trip of paper out of the
compartment.

Make sure that the paper is well in
place and close the paper
compartment cover.
6.15 Battery Charge
The instrument uses a NI-MH battery pack as its power source. When the battery pack almost runs
out, the battery symbol on the display will glint . It needs charging as soon as possible. Try to
drain your battery pack as fully as possible before it is charged for longest battery service.

The battery switch should be at ‘ON’ condition before charging.

Plug the power adapter into the mains supply power socket and then plug the charger connector
into the power jack of the instrument. If the instrument is in power off condition, it will turns on
automatically after the charger plug is inserted into the power jack. The battery symbol will
alternately shows between
and when charging. The more of the dark part indicates
the more close to full capacity.

When the battery is fully charged, the battery symbol on the display will glint .

Please use the configured AC-DC adapter to charge the battery pack.
Calibration
--------------
Average=780
Nominal=
780
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