INSTRUCTION MANUAL
D
IGITAL
M
ULTI
M
ETER
2230A/2230B
We thank you very much for your purchasing our
POCKET PERSONAL DIGITAL MULTIETER, This
model is a most Reliable, high-precision instrument,
designed by our excellent technology.
Before you use your new instrument, please read this
Operators Manual completely and familiarize yourself
Thoroughly with all functions and connections, With
proper use and care your Digital Multimeter will give you
years of satisfactory service.
SAFETY RULES
●
Always check to make sure that the function switch
is set to the proper position.
●
When making measurements, CAUTION as
dangerous voltages may be present in normally
safe areas.
●
Always disconnect the circuit under test prior to
attaching test leads, as voltages may be present in
capacitors even when the main power is
disconnected
●
To avoid electrical shock,use CAUTION when
working above 60V DC or 25V AC rms.
●
Make sure all power (AC or DC) is disconnected
(OFF)
when
making
resistance
(OHMS)
measurement.
●
Never make measurement with the battery cover of
battery case OFF.
●
Never fail to keep the maximum tolerable input.
●
The POCKET PERSONAL DMM is designed for low
voltage applications. The measurement should be
limited to the circuit under 500V (AC/DC)
●
NEVER use this meter if it is WET, DAMP or has
con-densation on it or the probes.
●
When making measurements MAKE SURE your
hands NEVER touch anything xecrpt the plastic part
of the probes.
SPECIFICATIONS
Measuring method:Dual integration mode
Display:3 -3/4 digital LCD reading of appprox 3260.
Range:Auto ranging
Polarity
Automatic
no
indication
for
positive
polarity,minus(-) sign for negative polarity.
Overrange indication:
“OL” mark indication (Except
AC/DC )
Sampling:2 times/s
Low Battery indication
“ ” mark is displayed when the
battery voltage drops below operating voltage
Auto power off :The meter is powered off 15 minute
later after the last operation was made to bring back
display ,please return the function switch to the OFF.
Bar graph display
Operational temperature :0
～
40
℃，
80%RH(max)
Storage temperature :-20
℃～
60
℃
,70%RH (max)
Power consumption: 6Mw(TYP)
Size:54(W)×108(H)×12(D)mm
Weight:Approx 110g (include batteries and case )
Accessores:Batteris ,LR-44(1.55V) 2
Hard cover case
1
Instrument manual
1
MEASUREMENT RANGES
Note/Accuracy specified for temperature range of
23
℃
±5
℃
, 80%RH(max)
function
range
resolution
accuracy
2230A
2230B
DCV
300mV
300mV
0.1 mV
±
(1.3% of rdg +2 digits)
3V
3V
1 mV
±
(0.7% of rdg +2 digits)
30V
30V
10 mV
±
(1.3% of rdg +2 digits)
300V
300V
100 mV
500V
500V
1 mV
ACV
3V
3V
1 mV
±
(2.3% of rdg +5 digits)
30V
30V
10 mV
300V
300V
100 mV
500V
500V
1 mV
OHM
300
Ω
300
Ω
0.1
Ω
±
(2.0% of rdg +4 digits)
3K
Ω
3K
Ω
1
Ω
±
(2.0% of rdg +2 digits)
30K
Ω
30K
Ω
10
Ω
300K
Ω
300K
Ω
100
Ω
3M
Ω
3M
Ω
1K
Ω
±
(6.0% of rdg +2 digits)
30M
Ω
30M
Ω
10K
Ω
±
(10.0% of rdg +5 digits)
300
Ω
300
Ω
0.1
Ω
0~2.000V
0~2.000V
1 mV
±
(10.0% of rdg +2 digits)
DCmA
30mA
※
10
μ
A
±
(2.0% of rdg +2 digits)
300mA
※
100
μ
A
ACmA
30mA
※
10
μ
A
±
(2.5% of rdg +5digits)
300mA
※
100
μ
A
DECSRIPTION OF PANEL
Function switch
Switch for changing the measurement function (
Ω / )
for resistance,countinuity check.
(VOLT)for voltage measurement
( mA)for current measurement
(OFF) for power OFF
