Display
3-3/4 digit lipuid cystal display from O to approx.3260
count with decimal point,annunciators display
Test leads
Red test lead for plus (+)poiarity,Black test lead for
minus(-) polarity.
PREPARATION AND CAUTION BEFORE
MEASUREMENT
●
Before making measurements install the batteries
TWO LR-44 batteries can be used.
●
Avoid using the POCKET PERSONAL D.M.M. in
places subject to high temperatures,humidity or
excessive vibration.
●
Avoid using the POCKET PERSONAL D.M.M. in
places with rapid temperatures varations
●
If the POCKET PERSONAL D.M.M.Is used near
noise generating equipment,be aware that the
display may become unstable or indicate large
errors.
●
If the function must be switch during a
measurement always remove the test leads form
the circuit being measured .After measurement, set
the function switch to “OFF”.
MEASURING METHOD
DC and AC Voltage Measurement
(1)
Set the function switch to “
V”.
(2) Connect the test lead to the circuit to be measured,
the range will change automatically to the level that will
display the input voltage with the best resolution.
(3)
Press “
SELECT
” key to choose “
DC
” or “
AC
”
measurement.
(4) The value indicated in the display window is the
measured value of voltage with proper decimal point
and annunciator indication.
DC and AC Current Measurement(only2230A)
1)
Set the selector switch to desired “
mA
” position.
2) Connect the test lead to the circuit to be measured,
the range will change automatically to the level that will
display the input Current with the best resolution.
3) Press “
SELECT
” key to choose “
DC
” or “
AC
”
measurement.
4) The value indicated in the display window is the
measured value of Current with proper decimal point
and annunciator indication.
MEASUREMENT OF RESISTANCE(
Ω)
(1)
Set the function switch to
“Ω”.
(2) Make sure all power is OFF in the circuit to be
measured.
(3) Connect the test leads to the circuit to be measured,
the range will change automatically, and will Hold on the
range that will display the measures resistance with the
best resolution.
(4)The value in indicatedc in the daisplay is the
measured value of resistance with proper decimal point
and annunciator indication.
Diode Measurement and audible continuity test
(1)
Set the function switch to “ / ”.
(2)Connect the test leads to the circuit to be measured .
Press “
SELECT
” key to choose “
” or “
”
measurement.
(3)Connect the test leads across the diode under
measurement, display shows the approx. forward
voltage of this diode.
(4) Connect the test leads to two point of circuit, if the
resistance is lower than
approx. 20Ω, the buzzer
sounds.
REPLACEMENT OF BATTERY
(1) When the batteries becomes exhaused or drops
below the operating voltage voltage the “ ” mark is
displayed.
(2)
Turn the function switch “OFF” and remove the test
leads from all test circuit,prior to installing fresh
batteries.
(3) Remove the batteries by using the tip of RED test
probe.
(4) Insert the two LR-44 or SR-44 into the battery case
making sure that proper polarity is observed.
Caution
Never using the BLACK test probe to avoid the
short-circuit
MAINTENANCE
When making requests for repair services,Please bring
the instrument directly to the dealer,if this is impossible,
however,send the instrument directly to our sales office.
When mailing this instrument,always pack together with
name ,address,telephone unmber and the warranty
documentation.
●
To ensure speedy and reliable repair.always include
information as to the type of faliure and cause.
●
If required,always return accessories with the
instrument.
●
When contacting us,provide the medel number of
your instrument.
