Faithfull FAI DETMULTI Manual de usuario
FAI DETMULTI
Instruction Manual
Read this instruction manual thoroughly
before use and retain for future reference.
2
This instrument is guaranteed to be free from
defects in material and workmanship for a period
of one year. The guarantee does not cover
product failure due to misuse, negligence or fair
wear and tear. In the case of electrical products
used for hire, the guarantee period is restricted
to three months. This guarantee does not cover
expendable items such as batteries or fuses.
Warranty
Safety Information
Electrical Symbols
This digital multimeter has been designed
according to IEC-1010 concerning electronic
measuring instruments with a measurement
category II (CAT II 600V) and pollution degree 2.
AC (Alternating Current)
DC (Direct Current)
Important safety information. Refer to Manual.
Dangerous voltage may be present.
Earth ground
Fuse
Conforms to European Union directives
The equipment is protected throughout by
double or reinforced insulation
3
Warning
To avoid possible electric shock or personal
injury, follow these guidelines:
Do not use the meter if it is damaged.
Before you use the meter, inspect the case.
Pay particular attention to the insulation
surrounding the connectors.
Inspect the test leads for damaged insulation
or exposed metal. Check the test leads for
continuity.
Replace damaged test leads before you use
the meter.
Do not use the meter if it appears to operate in
unusual manner as its safety features may be
impaired. If in doubt, have the meter serviced.
Do not operate the meter around explosive
gas, vapour or dust.
Do not apply more than the rated voltage, as
marked on the meter, between terminals or
between any terminal and earth ground.
Before use, verify the meter's operation by
measuring a known voltage.
Do not operate this meter in a manner not
specified by the manufacturer as the protection
provided by the equipment may be impaired.
4
When servicing the meter, use only specified
replacement parts.
Use with caution when working above 30V ac
rms, 42V peak, or 60V dc. Such voltages pose
a shock hazard. USE EXTREME CAUTION
when working with high voltages.
When using the probes, keep your fingers
behind the finger guards on the probes.
Connect the common test lead before you
connect the live test lead. When you disconnect
test leads, disconnect the live test lead first.
Remove the test leads from the meter before
you open the case or the cover.
Do not operate the meter with the back cover
or portions of the case removed or loosened.
To avoid false readings, which could lead to
possible electric shock or personal injury,
replace the batteries as soon as the low
battery indicator ( ) appears.
CAUTION - When an input terminal is connected
to a dangerous live source it is to be noted that
a shock potential equivalent to the live source is
present at all other terminals. USE EXTREME
CAUTION when working with high voltages.
When measuring a current, turn off the circuit
power before connecting the meter in the
circuit. Remember to place the meter in series
with the circuit.
5
CAT II - Measurement Category II is for
measurements performed on circuits directly
connected to low voltage installation.
(Examples are measurements on household
appliances, portable tools and similar
equipment.)
Do not use the meter for measurements
within Measurement Categories III and IV.
Caution
To avoid possible damage to the meter or to
the equipment under test, follow these
guidelines:
Disconnect circuit power and discharge all
high-voltage capacitors before testing
resistance, continuity, diodes, or capacitance.
Use the correct terminals, function, and range
for your measurements.
Before measuring current, check the meter's
fuse and turn the power OFF to the circuit
before connecting the meter to the circuit.
Before rotating the range switch to change
functions, disconnect test leads from the
circuit under test.
Remove test leads from the meter before
opening the meter case.
6
Before opening the case, always disconnect
the test leads from all live circuits.
To continue protection against fire, replace
fuse only with the specified voltage and
current ratings: F250mA/250V (Fast Blown)
Φ 5 x 20
Periodically wipe the case with a damp cloth
and mild detergent. Do not use abrasives or
solvents.
FAI DETMULTI is a handheld 3½-digit LCD
digital multimeter with the advantages of
precision reading and stable performance, and
can be used for the measurement of DC voltage,
AC voltage, DC current, resistance, diode and
continuity.
Maintenance
Introduction
7
Front Panel
1. Display 3½ digit, 7 segment, 15mm high LCD.
2. Back light switch Press to illuminate the LED
display, auto switch off after approximately
7 seconds.
3. Rotary switch Used to turn the meter on and
off and select the required function and ranges.
4. Hold button When this button is pushed, the
display will keep the last reading and the “ H”
symbol will appear in the LCD until the button
is pushed again.
1
2
3
6
7
4
5
8
General Specifications
Display: 3½-digit LCD, Max reading 1999
Measuring method: Dual-slope integration A/D
converter
Automatic polarity indication, " -" displayed for
negative polarity
Automatic over-range indication with
figure "1" displayed.
Auto power-off
Operating temperature: 0°C~40°C (32°F~104°F)
Storage temperature: -10°C~50°C (14°F~122°F)
Low battery indication: Symbol " " displayed
on the upper left side of the LCD.
Dimensions: 138 x 69 x 31mm
Weight: approx. 170g (including battery)
5. “10A” jack Plug in connector for Red test
lead when performing 10A measurement.
6. “COM” jack Plug in connector for Black
(negative) test lead.
7. “VΩmA” jack Plug in connector for Red
(positive) test lead for voltage, resistance and
current (except 10A) measurements.
9
DC VOLTAGE
Specifications
Accuracy is specified for a period of 1 year after
calibration and at 18°C ~ 28°C with relative
humidity up to 75%
Accuracy specifications take the form of:
±[(% of Reading)+(Number of Least Significant Digits)]
ACCURACY
±(0.8%+5)
±(1.0%+5)
RANGE
200mV
2V
20V
200V
600V
RESOLUTION
100µV
1mV
10mV
100mV
1V
ACCURACY
±(1.2%+10)
RANGE
200V
600V
RESOLUTION
100mV
1V
Input impedance 1MΩ
AC VOLTAGE
Input impedance: about 500KΩ
Response: average, calibrated in RMS of sine wave.
Frequency Response:40 - 400Hz
10
RESISTANCE
Maximum open circuit voltage: 3.2V
DIODE & AUDIBLE CONTINUITY
ACCURACY
±(1.2%+5)
±(1.0%+5)
±(1.2%+5)
RANGE
200Ω
2kΩ
20kΩ
200kΩ
2MΩ
RESOLUTION
0.1Ω
1Ω
10Ω
100Ω
1kΩ
RANGE DESCRIPTION
The approx. forward voltage drop of
the diode will be displayed on the LCD.
If the resistance under measurement
is less than about 50Ω, the built-in
buzzer will sound
ACCURACY
±(1.0%+5)
±(1.2%+5)
±(2.0%+5)
RANGE
20µA
200µA
2mA
20mA
200mA
10A
RESOLUTION
0.01µA
0.1µA
1µA
10µA
100µA
10mA
DC CURRENT
Max. input current: 10A (Can not last for more
than 10 seconds)
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