Applications; Measuring Dc Current - Urrea UD334 Manual De Usuario

E N G L I S H
the COM input terminal to any source
of more than 600V with respect to
Ground.
13. VΩHz (Voltage, Resistance, and
Frequency Input Termninal).
The read lead is plugged into this
terminal for AC Voltage, resistance,
continuity test
functions.
14.
Displayed when the Data Hold mode
is selected.
15.
Displayed when AC measurement
function is selected.
16. (Diode Test).
The displayed value is the forward
voltage of semiconductor junction(s).
17. (Negative Polarity).
Automatically indicates
inputs.
18.
Displayed when the Meter is in the
continuity test function.
19. (Low Battery).
Battery life warning, when is first
turned on, at least 8 hours of battery
life is remain. Replace the battery
immediately. Never leave a weak or
dead battery in the Meter. Even leak-
proof types can leak and damage the
14
and frequency
negative
Meter.
20. (Overload Indication).
Displayed on the LCD when input
value is too large to display.

4. APPLICATIONS

• MEASURING AC CURRENT
WARNING:
MEASUREMENTS MAKE SURE THAT ALL
TEST LEADS ARE DISCONNECTED FROM
THE INPUT TERMINALS.
Follow these steps to measure AC
Amperage:
1. Set the function switch to "A".
2. Toggle DC/AC switch to select AC.
(AC appears on the LCD.)
3. Press the lever to open the clamp
jaws and clamp around a conductor.
Position the conductor within the
jaws at the intersection of the
centering marks as much as possible
to obtain the most accurate reading.
4. Read the display.

• MEASURING DC CURRENT

When measuring DC Amps, the
display read a non-zero DC Amps,
(positive or negative) value due to the
presence or the Earth's magnetism.
BEFORE TAKING