FASANO TOOLS CAT III 300V User manual

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The reproduction of this document (even in partial form) is prohibited without the Fasangas S.r.l. authorization
DC / AC DIGITAL MULTIMETER
(CAT III 300V)

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Before using the multimeter, carefully read the warnings and
instructions contained in this manual.
This manual of warnings and instructions is an integral part of the
product and must be kept by the user for any future consultations. It
contains important information on the safe use of the product.
Usage destination.
This measuring device and its accessories must only be used by
professionally qualified personnel and only for the purpose for which
they were conceived. Any use other than that indicated could cause
damage to people, animals or things and is considered improper and
unreasonable. The manufacturer cannot be held responsible for any
damage caused by improper, erroneous and unreasonable uses,
such as: failure to comply with the instructions and warnings provided,
use of non-original accessories, unauthorized modifications or
interventions on the product, etc.
This equipment falls within the scope of Directive 2012/19 / UE. The
crossed-out trash can symbol on the product and / or on its packaging
means that at the end of its life, the product must be treated
separately from household waste and therefore must be sent to the
appropriate disposal and recycling centers. This operation is the
responsibility of the user. The disposal of the product at the specific
dedicated structures helps to avoid possible negative effects on the
environment and promotes the recycling of the materials that
compose it.
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Reading: 4000 points - 3 3/4 digit LCD type display with indication of the functions.
This multimeter has been designed to measure DC and AC voltages, DC and AC currents,
resistance, electrical capacity, frequency, diodes, temperature, continuity, duty cycle, sound,
relative humidity and brightness. Usable to test various devices or for the environment, the
Fasano Tools multimeter is a versatile and high-performance instrument.
This instrument has been designed in compliance with the IEC 61010 standard
(Standard CEI EN 61010-1 / A1: "Safety requirements for electrical measuring,
control and laboratory use appliances"), for double insulation and pollution degree 2.
CAT III 300 V instrument - Instrument for fixed installations. Note - For example
switches for fixed installations and some equipment for industrial use permanently
connected to fixed installations.

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ATTENTION
o Never use the multimeter for measurements that require category IV
instruments
o
To avoid electric shock or personal injury, follow these instructions:
o do not use the multimeter if damaged. Before use, check the appliance. Pay particular
attention to the insulation of the connectors
o check the tips for any damage to the insulation and make sure that there are no
exposed metal parts. Check the continuity of the tips. Replace the damaged tips before
use; use only original components
o do not use the multimeter for functions not prescribed: the protections could be
damaged. If in doubt, contact the manufacturer
o do not use the multimeter in the presence of explosive gases, vapors or dusts
o do not operate with voltages higher than the maximum capacity, as indicated on the
instrument; do not place the Meter between two equipment or between equipment and
grounding
o before use, check the voltage of the instrument to be tested
o for current measurements, turn the switch to OFF before connecting the multimeter to
the circuit. Remember to put the multimeter in series with the circuit
o be careful when operating with voltages above 30V AC rms, 42V peak, or 60V DC.
These voltages can cause an electric shock
o when using the probes, take care to position your fingers beyond the safety ring of the
same
o when taking a measurement, connect the black (negative) test lead first and then the red
(positive) test lead. When the measurement is complete, first detach the red test lead
o remove the test leads from the meter before removing the battery compartment
o do not use the Meter with the battery compartment cover or parts of it removed or
damaged
o in order to avoid incorrect readings, electric shock or personal injury, replace the
batteries when the indicator appears
o when the symbol "REL" or "H" appears on the display in Relative or Data Hold mode, be
careful as high voltages may be present
o when a test lead is connected to a powered circuit, the electrical potential is also
transmitted to the other, therefore it is dangerous to touch the test leads
o do not use the multimeter if it, the test leads or the user's hands are wet
ATTENTION
To avoid damage to the Meter or to the equipment tested, follow these
instructions:
o disconnect the power supply and discharge any capacitors before testing resistors,
diodes, capacitors, temperatures and continuity

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o correctly use tips, functions and ranges according to the measurement you want to take
o before making current or temperature measurements, check the multimeter's fuses and
turn off the equipment being measured before connecting the multimeter to it
o before switching the multimeter between the different functions, disconnect the test leads
from the tested equipment
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AC (Alternating Current)
DC (Direct Current)
DC e AC (both Direct Current and Alternating Current)
Caution, risk of danger, refer to this manual before use
Caution, risk of electric shock
Earth (ground) Terminal
Fuse
Conforme alle Direttive Europee
The equipment is protected throughout by double insulation
Low batteries
Diode

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DESCRIPTION / USE
1 3 3/4 Digital LCD Display - maximum reading capacity 3999 points
2 Range
mode to manual selection mode
3 Func is button to switch from direct current mode to
alternating current mode or between diode function and continuity function
4 "Hold" button: press this button to enter / exit the data memory
5
Function/Range Switch: use this to select the desired function, range or
turn the multimeter on / off. To conserve battery power, place the switch in
the OFF position when the multimeter is not in use
6 10A Terminal: input for the red connector for current measurements (400mA
~ 10A)
7
mA°C Terminal: input for the red connector for current measurements
(<400mA) Input for the positive (red) connector for the type K thermocouple
for temperature measurements
8 COM Terminal: plug-in connector for the black test lead. plug-in connector
for the negative (or black) plug of the K type thermocouple for temperature
measurements
9 Terminal: plug-in connector for the red test lead for all
measurements excpt temperature, current, sound level, relative humidity and
illuminance measurements
10 button: press and hold down this button fro about 1 second to turn on the
backlight, press this button again to turn off the backlight
11
REL button: press the button to enter / exit the relative mode
12 Hz% button: press the button to switch between frequency and Duty Cycle
measurements
13 Housing

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The sensors are located at the top of the meter and inside
the case.
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1. Continuity test is selected
2. Diode test is selected
3. Autorange modeis selected
4. Relative mode is active
5. Data Hold is enabled
6. Negative sign
7. DC
8. AC
9. Battery is low and must be replaced
immediately
10. Units:
mV; V
Unit of voltage
mV: millivolt; V: Volt
1V=103 mV
Unit of current
: microampere; mA: milliampere; A: Ampere
1A=103 mA=106
Unit of resistance
ch megaohm
3 6
Unit of capacitance
F: farad
1F=106 F=109 nF=1012 pF
°C Unit of temperature
°C: Celsius degree
Hz; kHz; MHz Unit of frequency
Hz: Hertz; kHz: chilohertz; MHz: megahertz
1. Sound sensor
2. Light sensor
3.Humidy sensor

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1MHz=103 kHz=106 Hz
% Unit of
%: percent
lux Unit of illumination
lx: lux
dB Unit of sound measurement
%RH Unit of relative humidity
%: percent
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DISPLAY: 3 3/4 LCD with a max. reading of: 3999
NEGATIVE POLARITY INDICATION: negative sign shown on the display automatically
SAMPLING RATE: 2 to 3 time/sec
IP GRADE: IP20
OPERATING ENVIROMENT: 0°C to 40°C; relative humidity: <75%
STORAGE ENVIROMENT: -30°C to 60°C; relative humidity: <85%
OPERATING ALTITUDE: 0 to 2000 meters
BATTERY: 9V battery, 6F22 or equivalent
LOW BATTERY INDICATION: shown on the display
DIMENSIONS: (162x83x47) mm
WEIGHT: about 310 g (including battery and housing)
SPECIFICATION
Accuracy is guaranteed for a period of one year from the instrument calibration date and at a
temperature between 18 ° C and 28 ° C, with relative humidity <75%.
Normally, the determination of accuracy follows the law:
± [(% of reading) + (number of least significant digits)]
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RANGE RESOLUTION ACCURACY OVERRANGE INDICATION
400 mV 0.1 mV ± (1.0% + 5)
OL shown on the display
4 V 1 mV
± (0.8% + 3)
40 V 10 mV
300 V 100 mV [1]
[1] DANGER if the voltage being measured is > 300V, the display may show the value of
the votage but, the measurement is dangerous
Input Impedance:
the 400mV range: >1000 M
other ranges
Max. Allowble Input Voltage:
300 V DC/AC

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RANGE RESOLUTION ACCURACY OVERRANGE INDICATION
4 V 1 mV
±(1.0%+5)
OL shown on the display
40 V 10 mV
300 V 100 mV [1]
Input impedance:
Max. allowable input voltage: 300V DC/AC
Frequency range: 40 Hz - 400 Hz
Response: avarange (calibrated in rms of sine wave)
[1] DANGER if the voltage being measured is > 300V, the display may show the value of
the voltage but, the measurement is dangerous.
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RANGE RESOLUTION ACCURACY OVERRANGE INDICATION
± (1.2% + 3)
OL shown on the display
40 mA
400 mA
4 A 1 mA ± (1.8% + 3)
10 A 10 mA ± (2.0% + 5) [1]
Overload protection:
for mA°C terminal inputs only: 500mA/300V fast fuse
for 10A terminal inputs only: 10A/300V fast fuse
Max. input current:
10A (for inputs > 2A: measurement duration <10 seconds, interval > 15 minutes)
Max. voltage drop:
400 mV
[1] DANGER if the current being measured is > 10A, the display may show the value of the
current but, the measurement is dangerous.
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RANGE RESOLUTION ACCURACY OVERRANGE INDICATION
400
± (1.5% + 5)
OL
4000 1
40 mA 10
400 mA 100
4A 1 mA ± (2.0% + 5)
10A 10 mA ± (2.5% + 5) [1]

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Overload protection:
for mA°C terminal inputs only: 500mA/300V Fast fuse
for 10A terminal inputs only: 10A/300V Fast fuse
Max. Input current:
10A (for inputs > 2A: measurement duration <10 seconds, interval > 15 minutes)
Max. voltage drop:
400 mV
Frequency range:
40 Hz - 400 Hz
Response:
averange (calibrated in rms of sine wave)
[1] DANGER if the current being measured is > 10A, the display may show the value of the
current but, the measurement is dangerous.
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RANGE RESOLUTION ACCURACY OVERRANGE INDICATION
±(1.0% + 5)
OL shown on the display
1
±(1.0% + 3)
±(2.0% + 5)
Open circuit voltage:
about 0.25V
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RANGE RESOLUTION ACCURACY OVERRANGE INDICATION
10 Hz
0.01 Hz
± (1.0%+3)
OL shown on the display
100 Hz
0.1 Hz
± (0.8%+3)
1 kHz
1 Hz
10 kHz
10 Hz
100 kHz
100 Hz
± (1.0%+3)
200 kHz
1 kHz
[1]
> 200 kHz
Not specified
Input voltage: 1Vrms - 20Vrms
[1] if the frequency being measured is > 200 kHz, the display may show a reading but, the
measured accuracy is not gearanteed.