XJW01 0.3% LCR цифровой мостовой тестер сопротивления, индуктивности, емкости, ESR Тест Готовый Продукт Комплект.

XJW01 0.3% LCR цифровой мостовой тестер сопротивления индуктивности емкости ESR Тест Готовый Продукт Комплект.

Description

SIZE：

XJW01 DIY digital electric bridge instruction:

Range L 0.05uh--2000h R 0.1 milliohm--20 trillion C 1p-200,000 microfarad

This bridge uses 12V1A power adapter,

Note: If using a battery: (connect three 1860 batteries in series with a 0.3V voltage drop diode and a 10 ohm current limiting resistor, plus a 0.5 ampere fuse. Prevent the power supply chip from being burned out when the leakage current is too large at the moment of the switch)

HC HP is a group, connected to the red clip. LC LP is a group, connected to the black clip, which means that the AC test does not distinguish between positive and negative

Do not measure the charged components before testing the capacitor. Be sure to discharge the capacitor

Please don't connect the case to the earth, and don't touch other charged objects! ! !

Turn on the power and turn on the switch.

The first screen displays the author information of the LCR digital bridge

Then enter the working state: 2004 screen shows:

Features of DIY LCR digital bridge:

⑴ Main display 1999.9 count, secondary display 999.9 count

⑵ Measuring frequency: 100HZ/1KHZ/7.8KHZ

⑶ Measuring voltage: 0.2Vrms

⑷ Output impedance: 40Ω

⑸ Basic accuracy: 0.3%

⑹ LCR automatic recognition/manual measurement

⑺ Open circuit/short circuit calibration compensation

Main parameter display:

Cp: Capacitor parallel mode

Cs: Capacitor series mode

Lp: Inductor parallel mode

Ls: Inductor series mode

Rp: Resistance parallel mode

Rs: resistance series mode

Xs: equivalent series reactance

Deputy parameter display:

Q: Quality factor

D: Loss factor

θ: phase angle

Rp: equivalent parallel resistance

ESR: equivalent series resistance

Xp: equivalent parallel reactance

Assistant parameter display range:

Q: 0.000-999.0

D: 0.000-9.999

θ: -179.0-+179.0 

1. After connecting the test clip, clear it first. Clear open/short circuit.

In automatic measurement mode,

Press the "ZERO (C)" button to perform 1khz 7.8khz 100hz sweep frequency open circuit clearing

 The test clips are clipped together to short-circuit. Press the ZERO (C) key to clear the short-circuit   

In the future, the short-circuit is obviously not zero at startup, and it can be cleared in short-circuit and open-circuit.

Also, it must be cleared when changing different test fixtures

2. If you press the HAND (L) key to switch to manual mode,

The three frequencies need to be manually cleared by ZERO (c) for each open circuit and short circuit.

3. After clearing, first measure 6 resistors, if accurate, the bridge is normal.

(40 Euro 1K 3K 9K 10K 100K)

4. Measuring the internal resistance of the battery: Use a resistance profile to measure it, and use a 1uF-5uF Cbb capacitor with a withstand voltage of 400-630V in series to test. This type of capacitor has low esr and high withstand voltage, which is safe for use.

First measure the esr1 of the cbb capacitor, and then measure the overall esr2 in series, the equivalent internal resistance of the battery is esr2-esr1

Note: The measured numbers will be bounce, generally only qualitative, not quantitative. Unless string high-quality high-pressure CBB 

Operation:

1. Automatic measurement

When the instrument is turned on, the default state is (AUTO)

Automatic recognition of component mode,

The range is automatically switched, and the default measurement frequency is 1KHz.

In the automatic mode, the instrument automatically recognizes the impedance characteristics of the measured object,

The main parameters of L, C or R are automatically selected and the series and parallel modes are extremely suitable.

In the automatic measurement mode, the series-parallel method depends on the impedance of the measured object

,

When the impedance is high (>10KΩ), select the parallel mode, when the impedance is low (<10KΩ), select the series mode.

2. L/C/R mode measurement parameters

Main parameter selection, default AUTO in power-on state, press "Mode C-L-R" (X) key

The parameters are selected in turn as "AUTO → AUTO-C → AUTO-L → AUTO-R → AUTO"

The series mode is "ESR" and the parallel mode is "RP". Xs/Xp is only activated when the main parameter R (resistance).

3. To select the serial and parallel measurement mode, press the "s.p/esr (R)" key in the corresponding main parameter mode,

The parameters are selected in turn as "AUTO- → P → S →AUTO-".

4. Measuring frequency, this bridge provides 3 frequency test points: 100HZ/1KHZ/7.8KHZ

The default frequency of power-on is 1KHz, press the "FREQ" (F) key

You can select different frequency points to measure "1KHZ →7.8KHZ →100HZ →1KHZ".

5. Open/short-circuit calibration compensation, press the "ZERO (C)" key when the measuring clamp is open or short-circuited

Sweep open circuit/short circuit calibration compensation can be performed.

(When the measuring clamp is open, press the "return to zero (C)" key to clear the sweep frequency open circuit to zero. The test clamp is short-circuited and press the C key to perform short-circuit clearing)

6. In manual mode, press the "HAND(L)" key in any measurement mode

You can enter this mode (manual mode), exit the manual mode and press the "HAND (L)" key.

In this state, the "Range (RNG)" key is available, and the switching range is "40R → 1K → 10K → 100K → 40R".

The following content is displayed:

Parallel series identification, impedance-reactance

Capacitance (inductance) measured value,

Q value

Manual mode identification, measurement frequency, main range,

6. In manual mode, press the "HAND(L)" key in any measurement mode

You can enter this mode (manual mode), exit the manual mode and press the "HAND (L)" key.

In this state, the "Range (RNG)" key is available, and the switching range is "40R → 1K → 10K → 100K → 40R".

The following content is displayed:

Parallel series identification, impedance-reactance

Capacitance (inductance) measured value,

Q value

Manual mode identification, measurement frequency, main range,

7. Relative measurement In the measurement mode, press the "parameter QTY" key (Q), no buzzer sound.

The current measurement value will be recorded and enter the relative measurement mode, press the "parameter (Q) QTY" key again,

Or mode switching, etc., will exit the relative measurement.

In the relative measurement mode, the assistant parameter will display the relative error of the measured object in the recorded value, and the display method is percentage.

The range is: -99.9%～+99.9% 

Real shot test chart of electric bridge:

Resistance test chart (The resistance is 0.1% precision of 0.25W blue as shown in the first picture below)

The capacitance test chart is as follows: 

The inductance test chart is as follows: