Inspect the instrument as often as operating conditions require. To clean the
instrument exterior, perform the following steps:
Wipe the dust from the instrument surface with a soft cloth. Take care not to
scratch the transparent LCD protection screen when cleaning.
Disconnect power before cleaning your instrument. Clean the instrument
with a damp soft cloth (not dripping with water). It is recommended to
clean with soft detergent or fresh water. To avoid damage to the
instrument, do not use any corrosive chemical cleaning agents.
Warning: Before re applying power, ensure that the instrument is
completely dry, avoiding any electric shock or electrical short
circuit resulting from moisture.