OPERATION MANUAL OF DIGITAL LCR METER 1. General This

2-2-3. RESISTANCE
OPERATION MANUAL OF DIGITAL LCR METER
Range
1. General
20Ω
200Ω
2kΩ
20kΩ
200kΩ
20MΩ
This meter is a steady performance, battery-driven 3 1/2 digital LCR meter, which has the figure of unit symbol displaying, accuracy
reading and wide range measurement. This meter has the function of measuring inductance, resistance, capacitance test. In addition, it’s
ideal for testing SMD type components. Plus, the meter offers advanced features, such as the ability to perform precision measurements.
It is an ideal hand-held tool for labs, factories and radio-technology.
Accuracy
±(1.0%+5)
±(0.8%+2)
±(2.0%+5)
3. Operation
Please read this operation manual carefully before your operation!
3-1 Panel description (SEE FIG.1)
2. Characteristic
1) LCD display: display the measuring value, unit and “
2-1. General characteristic
2) Power switch: turn on/off the power.
”symbol.
Display: LCD display, Max. 1999
3) Zero Adjust switch: zero adjust switch before measurement under range 20nF.
Inductance measure: 0.1uH~20H
4) Function knob: select range.
Capacitance measure: 0.1pF~2000uF
5) Input jack: test input COM.
Resistance measure: 0.01Ω~20MΩ
6) Battery case.
Zero adjustment: Capacitance under 20nF is manual ministrant zero adjust.
3-2. Matters need attention before measurement
Over range: display“1”
z
Low battery indication: “
Resolution
0.01Ω
0.1Ω
1Ω
10Ω
100Ω
10kΩ
When
signal displays at the state of power on, should replace the battery to ensure the
accuracy.
”symbol display
Sampling rate: 0-5s
z
Do not switch the function knob when measuring.
Working temperature: 0~40℃
z
Capacitance measurement function is used to measure the capacitance value, can’t used to measure the figure of merit of reactive
Relative humidity: less than 80%
power. It perhaps gets a wrong reading if measure the capacitance value of resistance; before measuring, it should release the
Meter size: 185mm×93mm×35mm (length×width×height)
capacitor completely. Beware of polarity when connects the polar capacitor. Do not connect the test COM with voltage source;
Weight: Approx.290g (including 9V battery)
otherwise it will cause grievous damage. Do not connect the test leads short-circuit, otherwise it will lead to the loss of extra heavy
Power: one 9V battery (6F22 or equivalent)
current, and it will have over range display in all ranges. Please do not measure the capacitance on wire, though it can measure, it
Standard accessories: test leads, operation manual
will cause the big error and damage the meter (if the wire is not power off or there exists the voltage, capacitance or without
releasing the capacitance completely).
2-2. Electric characteristic
Accuracy: ± (% of reading + number of digit) at 23 ± 5℃, relative humidity<75%. One year guarantee since production date.
2-2-1 Capacitance
Range
Accuracy
200pF
2nF
20nF
200nF
2μF
20μF
200μF
±(2.5%+5)
2000μF
±(3.0%+5)
Resolution
0.1pF
1pF
10pF
100pF
1000pF
0.01μF
0.1μF
z
Under range 20nF maybe there is no way to zero adjust when using SMD test clip (the clip’s capacitance is bigger than 20pF).
z
Inductance measurement function is used to measure the inductor value, can’t used to measure the figure of merit of reactive power.
It perhaps gets a wrong reading if measure the inductance value of resistance.
z
Please do not measure the inductance on line to avoid damaging the meter.
z
Before measuring, it should release the capacitor completely to avoid damage.
3-3. Capacitance measurement
Set the function knob to a proper capacitance range:
1μF
1)
On the range under 20nF, setting the zero adjust switch till the LCD displays “000” (but it must insert the test leads or SMD test
clip).
2-2-2.Inductance
Range
200uH
2mH
20mH
200mH
2H
20H
Accuracy
±(2.0%+5)
±(4.0%+10)
Resolution
0.1uH
1uH
10uH
100uH
1mH
10mH
2)
Insert the capacitor under tested to the “COM” or clip by test leads, the value will displayed on LCD, which will read as unit of the
selected range directly. If it displays “1”, it means over range measure. If there is “1” or “00” before the displayed select a lower
range to increase the measurement resolution.
Note
1)
If the capacitance under measured is unknown beforehand, should set the range knob from the lower to the highest range.
2)
If capacitance breakdown, it will display over range in all ranges; when there’s a lower leaky capacitance, it will display over range
or a big value which is much bigger than the normal value. If turn off capacitance, the reading will display “0” at all ranges.
3)
z We herby will not be responsible for the accident and damage caused by improper operation.
to the pin of capacitance under measured to zero adjust, thus can get a higher accuracy.
z The function stated for this User Manual cannot be the reason of special usage.
When use any test leads, please remember the test leads perhaps lead to a bigger capacitance. Firstly, it should measure the
capacitance value in the condition of the test leads is out of measurement, write down the open-circuited value and deduct it from the
test value, it will get a correct test result, this result is the same under the other test condition.
Many capacitors (especially the electrolytic capacitor) have wide capacitance of condenser. If the test result is bigger than the
nominal value, there is no necessary to be surprised at it, except the blocking capacitor. Usually the test result is seldom smaller than
the rated value.
6)
z The content of this manual is regarded as correct, error or omits. Please contact with factory.
When test the small (pF) capacitance, the test leads more short more better, when measuring, test points of test leads should be close
4)
5)
z The specifications are subject to change without notice.
When range changes, and the test value have significant changes, it usually can examine the resist of leaky capacitor. At the low
range, the existent effect of leaky capacitance can reduce.
3-4. Inductance measure way
1)
Set the function knob to a proper inductance range;
2)
Insert the inductor under tested to the “COM” or clip by test leads, the value will displayed on LCD, which will read as unit of the
selected range directly. If it displays “1”, it means over range measure. If there is “1” or “00” before the displayed select a lower
range to increase the measurement resolution.
Note
1)
If the range under measured is unknown beforehand, should set the range knob from the lower to the highest range.
2)
In order to avoid leading into the stray induction, should use the short wire when the tiny inductance.
3)
This meter can’t be used to test inductance’s figure of merit. e.g.: it perhaps gets a wrong reading when test the inductance of
resistance.
4. Auto power off
The meter will be into sleeping mode when stopping working for 20 minutes; if you want to measure you should restart the power. It
won’t be power off when it LCD display full range 20%.
5. Maintenance
1)
Do not try to modify the electric circuit.
2)
Keep the meter away from water, dust and shock.
3)
Do not store and operate the meter under the condition of high temperature, high
humidity, combustible, explosive and strong magnetic place.
4)
Wipe the case with a damp cloth and detergent; do not use abrasives and alcohol.
5)
If do not operate for a long time, should take out the battery to avoid leakage.
6)
When
7)
Take off the holster. (see the fig.).
8)
Unlock the screw and remove the battery case.
9)
Take out the old battery and replace the new one. It's better to use alkaline
signal displays, should replace the battery following the steps:
battery for longer life.
10)
Fit on the battery case and lock the screw.
11)
Fit on the holster as the opposite way.
511-V1.0
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