UNI-T UT805 Operating Manual page 8

l
Ensure the Meter is at right measurement position
range. Disconnect the connection between the test
lead and the circuit under tested before changing
over the range. No changeover of range shall be
made during measurement is conducted to prevent
damage of the Meter.
l
When the Meter working at an effective voltage over
60V in DC or 30V in AC, special care should be taken
for there is danger of electric shock.
l
Use the proper terminals, function, and range for your
measurements.
l
Under the manual ranging mode, if the value to be
measured is unknown, use the maximum
measurement position and reduce the range step by
step until a satisfactory reading is obtained.
l
Do not use or store the Meter in an environment of
high temperature, humidity, explosive, inflammable
and strong magnetic field. The performance of the
M e t e r m a y d e t e r i o r a t e a f t e r d a m p e n e d .
l
When using the test leads, keep your fingers behind
the finger guards.
6
Model UT805: OPERATING MANUAL
l
Disconnect circuit power and discharge all high-
voltage capacitors before testing on-line resistance,
continuity, diodes, current, or capacitance.
l
Before measuring current, check the Meter's fuses
and turn off power to the circuit before connecting
the Meter to the circuit.
l
Remove test leads, RS232C interface cable, USB
interface cable and alligator clip from the Meter and
turn the Meter power off before opening the Meter
case.
l
When servicing the Meter, use only the same model
number or identical electrical specifications
replacement parts.
l
The internal circuit of the Meter shall not be altered
at will to avoid damage of the Meter and any accident.
l
Soft cloth and mild detergent should be used to clean
the surface of the Meter when servicing. No abrasive
and solvent should be used to prevent the surface of
the Meter from corrosion, damage and accident.
l
The Meter is suitable for indoor use.
l
Turn the Meter power off when it is not in use.