Maintenance; How To Clean Screen, Keyboard And Ports; Other Matters Needing Attention - Deepace KC901V Manual

5.1 How to Clean the Screen, Keyboard and Ports
Remove the protective films from screen. The glass pane of the display screen is
replaceable. So it's not necessary to place a protective film to protect the screen,
otherwise if will reduce the visibility under the sun.
When the display screen and keyboard become dirty, wipe it with a piece of wet
tissue and then dry them out with a piece of gauze.
If there is dust inside, take the control circuit board apart and clean it by blowing
it with 0.2MPa compressed air. If it's necessary, change a new glass pane of the dis-
play screen and the rubber of the keyboard.
Please clean the RF adaptors regularly. When clean it, clean the inside of the
ports with dry cotton swab. Then clean it with a cotton swab which is with a bit of al-
cohol. Core needle's end face and the inside/outside steps of connector's shell must
be cleaned very well. Core needle's hole can be cleaned by spinning the tissue which
is twisted slimly.
Warning:
Before taking apart of the circuit board, all batteries and the charger must be
removed. User can take apart of the instrument shell and the control circuit board to
install the batteries and clean the display screen. There won't be any influence on
the warranty period. But it will be out of the warranty range if there is any problem
and damage caused during taking it apart.
Wiping the instrument on any part with organic solvent is banned. Also be
careful and don't let any fluid flow into the barometer.
5.2 Other Points for Attention
1. Please place the instrument into the suitcase or package if it's in long-distance
carry. Strap should be used if it's carried outside. Do NOT put it together with other
construction tools and something hard so that it can avoid the damages from hitting
and falling accidents.
2. When testing some heavy devices or connecting some thick and strong coax
cable, user should use some flexible cable to do the switch-over. Also remove the in-
fluence of the patch cord by calibration.
3. Match the right position when install the connector and insert it carefully.
Shake lightly and screw slowly. Screw the thread tight when feel that the core needle
is insert into the core hole. Use both of two hands when screwing the thread. One
hand holds the instrument to keep it from turning and screw the barrel with another
hand. DO NOT make the whole plug turn. Also pay attention to check the connector
which is not so familiar. If the core needle is too long or it's slant, repair it before
connecting it.
Chapter Five Maintenance
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