Button Description - LEXMAN LX-M-2100 Manual De Utilización

10 - When the « » symbol appears on tge LCD, please replace
the batteries in time to ensure measurement accuracy. If the meter
is not in use for a long time, please remove the batteries.
11 - Do not change the internal circuit of the meter to avoid damage
meter and user.
12 - Do not use or store the meter in high temperature, high humidity,
flammable, explosive and strong magnetic field environments.
13 -
Clean the meter casing with a soft cloth and mild detergent. Do not
use abrasives or solvents!
Electrical symbols
Symbol Description
Caution, possibility of electric shock
Alternating current
Direct current
Equipment protected throughout by
INSULATION or REINFORCED INSULATION
Earth (ground) TERMINAL
Warning or Caution
It is applicable to test and measuring circuits connected
directly to utilization points (socket outlets and similar
points) of the liw-voltage MAINS installation
It is applicable to test and measuring circuits connected to
the distribution part of the building's low-coltage MAINS
installation
1 -
Max display: 6099 (LX-M-2100)
2 - Polarity display : Auto
3 - Overload display : «OL» or (-OL)
4 - Low battery indication : the « » symbol is displayed.
5 - Low battery shutdown prompt : The «Lo.bt» interface appears on the
LCD and lasts for about 10s, the buzzer beeps three times, and the
meter automatically shuts down.
6 - Test position error : If the source under test is not placed at the
center of the clamp jaws when measuring current, + 1,0% additional
error in reading will be produced.
7 - Drop protection : 1m
8 - The maximum size of jaw opening : 28 mm in diameter
9 -
Battery ; AAA battery 1.5V x 2
10 - Auto power off : If there is no operation of the function switch or any
button for 15 minutes, the meter will automatically power off. This
function can be turned off as needed.
11 - Dimensions : 215,1mm x 72,5mm x 37,8mm
12 -
Weight : about 248g (including batteries).
13 -
Altitude : 2000m
14 - Operating temperature and humidity: 0°C-30°C ( 80% RH), 30°C
40°C) ( 75% RH), 40°C 50°C ( 45% RH)
15 - Storage temperature and humidity: -20°C 60°C ( 80% RH)
16 - Electromagnetic compatibility:
RF = 1V/m, overall accuracy = specified accuracy + 5% of range
RF = 1Vm, no specified calculation
EN External structure
NCV sensing end
Clamp jaws
Hand guard
Jaw opening trigger
LED indicator
Function switch
Function buttons
LCD display
COM (negative -) input jack
Positive (+) input
jack

Button description

1 - SELECT button
In the composite function position, press this button to switch between
the corresponding measurement functions : in the AC/DC/Hz position,
short press this button to switch between the AC and DC finctions, and
long press (about 2s) this button to enter/exit the Hz measurement
function.
2 - HOLD/BACKLIGHT - SELECT button
Short press this button to enter/exit the data hold mode, and long press
(about 2s) this button to turn on/off the backlight (the backlight will
automatically turn off after 60s).
3 - MAX/MIN button
Short press this button to enter the maximum/minimum measurement
mode and long press this button to exit (only valid for AC/DC voltage, AC
current, resistance and temperature measurement).
4 - REL. button
In the cappacitance and voltage positions, press this button to store the
current reading as a reference for future readings. When the LCD display
value is reset to zero, the stored reading will be subtracted from the
future readings. Press this button again to exit the relative value mode.
Operating instructions
1 - AC Current/Current frequency measurement (Picture 2)
Select the AC current range (6A/60A/600A.)
1 -
2 - Press the trigger to open the clamp jaws, and fully enclose one
conductor
A
AC current
measurement
Current frequency
measurement
Note :
The current measurement must be taken within 0°C
Picture 1
suddenly release the trigger, as the impact will change the reading for
a short time.
To ensure measurement accuracy, center the conductor in the jaws.
Otherwise, + 1.0% additional error in reading will be produced.
When the measured current is 600A ), the meter will automatically
sound an alarm and the high voltage alarm prompt
« » will automatically flash.
If the LCD displays «OL», it indicates that the current is over range
and there is a danger of damage to the meter.
2 - AC/DC voltage and voltage frequency measurement (Picture 3)
1 - Insert the red test lead into the «
«COM» jack.
2 - Turn the function switch to the AC/DC voltage position, and connect
the test leads with the measured load or power supply in parallel.
Picture 3
V
OFF
CT
Note :
Do not input voltage above 600V. Althought it is possible to measure
higher voltage, it may damage the meter.
Be cautious to avoid electric shock when measuring high voltage.
When the measured voltage is 30V (AC) or 60V (DC), the LCD will
display the high voltage alarm prompt.
3 - Resistance measurement (Picture 4)
1 - Insert the red test lead into the «
«COM» jack.
2 - Turn the function switch to the
switch to select resistance measurement, and connect the test leads
with both ends of the measured resistance in parallel.
Picture 4
Hz%
V
SELECT
Note :
If the mesured resistor is open or the resistance exceeds the
maximum range, the LCD will display «OL».
Before measuring the resistance online, switch off the power supply of
EN
the circuit, and discharge all capacitors to avoid inaccurate
measurement.
40°C. Do not
If the resistance is not less than 0.5
short-circuited, please check the test leads for looseness or other
abnormalities.
Do not input voltage higher than 30V to avoid personal injury.
4 - Continuity test (Picture 4)
1 - Insert the red test lead into the «
« » jack.
2 - Turn the function switch to the «
button to select continuity measurement, and connect the test leads
with both ends of the measured load in parallel.
3 - Measured resistance 10 . .The circuit is in good conduction status;
» jack, black into the
the buzzer beeps continuously. Measured resistance 31
buzzer makes no sound.
Note :
Before measuring the continuity online, switch off the power supply of
Hz
the circuit, and fully discharge akk capacitors.
Do not input voltage higher than 30V to avoid personal injury.
- + V
5 - Diode test (Picture 4)
V
1 - Insert the red test lead into the «
«COM» jack.The polarity of the red test lead is «+» and that of the
black test lead is «-».
2 - Turn the function switch to the «
button to select diode measurement, and connect the test leads with
Red Black the positive and negative poles of the measured diode.
3 - 0.08V reading
normality of the diode. Reading
continuously indicating the damage of the diode. For the silicon PN
junction, the normal value is generally about 500-800 mV.
Note :
If the diode is open or its polarity is reversed, the LCD will display
«OL».
Before measuring the diode online, switch off the power supply of the
circuit, and fully discharge all capacitors.
» jack, black into the
Do not input voltage higher than 30V to avoid personal injury.
6 - Capacitance measurement (LX-M-2100, picture 4)
position, press the SELECT button
1 - Insert the red test lead into the «
«COM» jack.
2 - Turn the function switch to the «
Capacitance leads with the measured capacitance in parallel. For capacitance ,
Continuity 100nF, it is recommended to use «REL» measurement mode.
Diode
resistance
Note :
If the measured capacitor is short-circuited or the capacitance
exceeds the maximum range, the LCD will display «OL».
When measuring capacitance
steady the readings.
Red Black
Before measuring, fully discharge all capacitors (especially for
capacitors with high voltage) to avoid damage to the meter and user.
7 - Non-contact AC electric field sensing (NCV, picture 5)
The electric field sensing sensitivity is divided into two levels (»EFHI» and
«EFLo»). The meter defaults to «EFHI». Select different sensitivity levels
when the test leads are
» jack, black into the
»position, press the SELECT
: the
» jack, black into the
»position, press the SELECT
1.2V : the buzzer makes on beep indicating the
0.08V : the buzzer beeps beeps
» jack, black into the
»position, and connect the test
400 F , it may take some time to