multicomp pro MP730425 User Manual

MP730425
Residential Multimeter User Manual
Preface
Thank you for purchasing the new MP730425 residential multimeter. In order to use this product
safely and correctly, please read this manual thoroughly, especially the Safety Instructions.
After reading this manual, it is recommended to keep the manual at an easily accessible place,
preferably close to the device, for future reference.
1. Overview
The MP730525 is a pocket-size residential multimeter specially designed for home use. The
compact structure makes it easy to hold in one hand, and the EBTN screen allows users to
obtain clear readings at maximum angle. The multimeter complies with EN61010-1:2010,
EN61010-2-030:2010, and EN61326-1 :2013 safety standards and is able to safely operate within
the CAT Ill 600V environment.
2. Features
• The battery status detection is automatically completed at the moment of booting: The green light
indicates the normal state; the yellow light indicates low battery; the red light indicates very low
battery, and there is acousto-optic indication at this time.
• Automatic identification of ACV/DCV measurement
• Intelligent non-contact electric field detection, which distinguishes the weak electric field by green
light, the strong electric field by yellow light, and the super strong electric field by red light
• Full featured protection
A. Before using the meter, please read the Safety Instructions carefully.
3. Safety Instructions
• Do not use the meter if the rear cover is not covered up, or it will pose a shock hazard!
• Before use, please check and make sure the insulation layer of the meter and test leads is in
good condition without any damage or broken wires. If you find the insulation layer of the meter
housing is significantly damaged, or if you think the meter cannot function property, do not use
the meter.
• When using the meter, your fingers must be placed behind the finger guard ring of the test leads.
• Do not apply voltage over 600V between any meter terminal and earth ground to prevent electric
shock and damage to the meter.
• Be cautious when the measured voltage is higher than 60V (DC) or 30Vrms (AC) to avoid electric
shockl
• The measured signal is not allowed to exceed the specified limit to prevent electric shock and
damage to the meter!
• The range switch should be placed in the corresponding position during measurement.
• Never change the range setting when measuring to avoid damage to the meter!
• Do not change the internal circuit of the meter to avoid damage to the meter and user!
• When the "i;;;:::i • symbol appears on the LCD, please replace the batteries in time to ensure
measurement accuracy.
• Do not use or store the meter in high temperature and high humidity environments.
The performance of the meter may be affected.
• Clean the meter casing with a damp cloth and mild detergent. Do not use abrasives or solvents!
• Measure known voltage with the meter to verify that the meter is working properly. If the meter
is working abnormally, stop using it immediately. A protective device may be damaged.
• If the equipment is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.
• If the test leads need to be replaced, you must use a new one which should meet EN 61010-031
standard, rated CAT Ill 600V, 10A or better.
• Safety symbol description
�
Low battery Caution, possibility of electric shock
.;:::Ji
_,
-½
Earth(ground) TERMINAL Alternating current
...
&
Caution Direct current
CE:
Comply with European Union standards
[QI Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATIOIN
- �
Confonns to UL STD. 61010-1, 61010-2-030, 61010-2-033,
...,
Certified to CSA STD. C22.2 NO. 61010-1, 61010-2-030, 61010-2-033
It is applicable to test and measuring circuits connected to the distribution part of the building's
CAT III
IOW•V0ltage MAINS installation.
4. Operating Instructions
• The meter has the function of battery self-checking, and can complete the battery status detection
within 2 seconds at the moment of booting:
a) When the supply voltage is >2.7V, the indicator on the top of the meter lights up green for 2
seconds, indicating that the power is sufficient, and the meter enters the normal measurement
mode accompanied by one beep.
b) When the supply voltage is within 2.4V-2.7V, the indicator on the top of the meter lights up
yellow, and the low battery symbol" i;;;:::i• appears on the LCD.
c) When the supply voltage is <2.4V, the indicator on the top of the meter lights up red for 2
seconds, and then the meter powers off. It can only be used after replacing the batteries.
4.1 DC/AC Voltage Measurement (Picture 1)
1) Tum the range switch to the AC voltage position;
2) Insert the red test lead into the " v i:i-o1•c " jack,
black into the "COM" jack, and make the probes in
contact with both ends of the measured voltage
(parallel connection to the load);
3) Read the test results on the display.
The meter has the function of ACV/DCV automatic Identification
(voltage �0.SV). If you want to measure voltage less than O.SV,
press the SELECT button to toggle the AC and DC voltage to
lock the measurement mode; After pressing the SELECT button,
the meter no longer has the function of ACV /DCV automatic
Identification, unless you turn the range switch or restart the
meter!
&.Note:
• Do not measure voltage above 600Vrms. Although it is possible to measure higher voltage, it
may damage the meter and hurt the user! If the LCD displays "OL", it indicates that the voltage
is over range. The input impedance of the meter is 10MO. This load effect may cause measurement
error when measuring high impedance circuits. If the measured impedance is � 10kO, the error
can be ignored (�0.1%).
• Be cautious to avoid electric shock when measuring high voltage.
• Test known voltage before use to confirm if the meter functions properly!
4.2 Resistance Measurement (Picture 1)
1) Tum the range switch to the resistance measurement position;
2) Insert the red test lead into the "v i:i-,1•c • jack, black into the "COM" jack, and make the probes
in contact with both ends of the measured resistance (parallel connection to the resistance);
3) Read the test results on the display.
&. Note:
• Before measuring the online resistance, switch off the power supply of the circuit, and fully
discharge all capacitors to avoid damage to the meter and user.
* If the resistance is not less than 0.50 when the test leads are shorted, please check if the test
leads are loose or abnormal.
• If the measured resistor is open or the resistance exceeds the maximum range, the "OL" symbol
will appear on the display.
• Do not input voltage higher than DC 60V or AC 30V.
• Measured value = measured display value - short circuit value of the test leads
4.3 Continuity Measurement (Picture 1)
1) Turn the range switch to the continuity measurement position;
2) Insert the red test lead into the" VO·•l'C • jack, black into the "COM" jack, and make the probes
in contact with the two test points;
3) Measured resistance �300: The indicator lights up green accompanied by continuous beeps,
indicating that the on-resistance is small, and the LCD displays the corresponding resistance
value.
Measured resistance within 310-4200: The indicator lights up red accompanied by no beep,
indicating that the on-resistance is large, and the LCD displays the corresponding resistance value.
Measured resistance >4200: The indicator and buzzer have no response, indicating that the circuit
is open. The LCD displays "OL".
&. Note:
• Before measuring the continuity online, switch off the power supply of the circuit, and fully
discharge all capacitors to avoid damage to the meter and user.
4.4 Temperature Measurement (
1) Turn the range switch to the temperature
measurement position;
2) Insert the plug of the K-type thermocouple into
the meter, and fix the temperature sensing
probe on the object to be tested; read the
temperature value on the display after it is
steady.
&. Note:
"OL" symbol appears when the meter is turned
on. Only K-type thermocouple/ temperature
sensor is applicable (The measured temperature
should be less than 300 "C/572 'F).
° °
F= C*1.8+32
4.5 Non-contact AC Electric Field Sensing (Picture 3)
1) To sense whether there is AC voltage or
electromagnetic field, please tum the range
switch to the NCV position;
2) Bring the front end of the meter close to the
measured object to start sensing. The intensity
of the electric field sensing is indicated by the
LED indicator and the segment "-" on the LCD.
The more the segments (up to four segments)
are displayed, the higher the electric field
intensity and the faster the beep.
4.6 Others
*
During measurement,
of the range switch or any button for 15 minutes,
the meter will automatically shut down to save
power. You can wake tt up by pressing any button
or turning the range switch, and the buzzer should
beep once for indication. To disable auto shutdown,
tum the range switch to the OFF position, press
and hold the SELECT button (�2 seconds) while
power up the meter.
Black
• When you press any button or tum the range switch, the buzzer will beep once.
*
Buzzer warning:
Input voltage �600V (AC/DC): The buzzer beeps continuously warning that the range is at its limit.
• About 1 minute before auto shutdown, the buzzer will make five consecutive beeps; before
shutdown, the buzzer will make one long beep.
Picture 1
° °
Cl F Measurement, Picture 2)
Picture 2
if
there is no operation
Picture 3
Vent
hole or
refrigerator