Free Worldwide Shipping

XJW01 LCR digital bridge tester ESR Kit

98% of buyers enjoyed this product!
View cart→

The shell do not sell only , if you need , you should order the kit with shell

Discharge must be measured before capacitance measurement !!!

Accuracy 0.3%. The bridge is DIY, and it needs welding assembly!Please choose your own package.Need to have time, but also electronic knowledge and practical ability! Standard bridge element test kit.

HC HP, red clip, LC LP, black clip

Measuring battery internal resistance:Resistance check,With a 400–630V CBB capacitor voltage of about 1uF–5uF on the ESR connection, low capacitance, high voltage with security. Measure the ESR1 of the CBB capacitor first, and then measure the whole ESR2 in series. The equivalent internal resistance of the battery is esr2-esr1

Externally available12V lead-acid batteries or three section 18650(With an external battery, the interference is smaller and the measurement value is more stable than the switch adapter

beltHUAWEIHigh quality 12V 1.0A power adapter, aluminum housing bracket, 18650, three section battery box +Insurancesilk+DC line(18650 batteries must beBe careful not to short-circuit! And over discharge)

Note: after the whole machine is assembled, only the open circuit and short circuit are cleared and compensated

AlsoWhen changing different test fixtures, reset them

The main board has been calibrated to 0.3%. Please do not restore the default parameters!!! (default parameter accuracy is 0.5%)

Be carefulDon’tSuch operation:PressMenu (Menu) the key enters the main menu.Then pressRangeRNG)Key goes into calibration mode , Press again CKey,The current item calibration data will be cleared!!!

Third: 100Hz 1KHz bridge test frequency 7.8KH

Default Shen (Xinjiang Tibet remote areas sent SF, reasonable price, please contact customer service to change freight)

Sending 60.1% precision resistance verification accuracy and subsequent calibration:

40 European, 1K, 3k, 9K, 10K, 100K

Aluminum shell size: 150*115*35 plastic shell size 200*175*70

I. Xu’s overview:bookLCRDigital bridge, mainly used for accurate determination of componentsL,C,RParameters with wide measuring range and high accuracy. Play with ore radios, most of the components neededDIYThere is no nominal technical parameter. For example, it is necessary to know the reactance characteristics of resonant devices, detection devices, antennas, headsets, transformers and other devices. Among them, high frequency parameters can be usedQTables solve problems while low-frequency parametersQMeter difficult to determine. In order to solve this problem, the author thinksLCRDigital bridge is competent.

· design objectives:1Capable of accurately measuring reactorL,C,RAccuracy is better than0.5%If the file calibration is carried out, the accuracy is better0.3%

2Easy to draw materials, simple circuit, easy to manufacture, the cost should be properly controlled. Make it more amateurDIYValue and research value, and through design,DIYLearn toLCRThe relevant details and principles of electric bridge.

· BenLCRTable basic characteristicsADNumber of converters: approx.1000The oversampling technique is used, and the effective resolution is approximately4000word

Measurement method: quasi bridge measurement, measuring principle similar to the proportion method of measuring resistance.

Main measuring range:1To Europe0.5Trillion, accuracy0.5%(Theory) the impedance comparison is not over0.3%

Range: resistance: effective measurement range: 2 to 10 ohm Europe, the minimum resolution of about 0.5— 1 cents Europe
Inductance: 0.02uH resolution, measuring range 0.1uH to 1000H, beyond the 1000H not tested (theoretically can also be measured)
Capacitance: resolution is related to clamps. If the fixture is good, it can distinguish the 0.05pF effectively, and can’t distinguish between 0.1pF and even 1pF only. The upper limit is not tested. Only the 10000uF capacitor has been measured. There is no greater capacitance on the hand

Discharge must be measured before capacitance measurement!!!

U measured 192 thousand uF

(U measured to 80 thousand uF)

U measured 130 thousand uF

Test frequency: 100HZ 1KHZ 7.8KHZ 3

Functional characteristics of bridge V3.0:

The main display1999.9Count, vice, show999.9count
2Measurement frequency:100HZ/1KHZ/7.8KHZ

The measurement of voltage:0.2Vrms

The output impedance:40Ω

The basic precision:0.3%

6LCRAutomatic identification / manual measurement

Open / short, calibration and compensation

Main parameter display:

Cp: Capacitor parallel mode
Cs: Capacitor series mode
Lp: Inductance parallel mode
Ls: Inductive series mode
Rp: Resistor parallel mode
Rs: Resistance series mode
Auxiliary reference display:
Q: Quality factor
D: Loss factor
θ: phase angle
Rp: Equivalent shunt resistance
ESR: Equivalent series resistance

Xp: Equivalent shunt reactance

Xs: Equivalent series reactance

Operating instructions:

1Automatic measurement

When the instrument is switched on, the default state is auto identification mode (AUTO), and the default measurement frequency is 1KHz.

In the automatic mode, the instrument automatically identifies the impedance characteristics of the measured object, automatically selects the main parameters of L, C or R, and is suitable for the series parallel mode.

In automatic measurement mode, the series and parallel modes are determined according to the impedance of the tested object. When the impedance is high (> 10K&Omega), the parallel mode is selected; when the impedance is low (< 10K&Omega), the series connection mode is selected.

2L / C / R mode measurement parameters

1)The main parameter selection, in the boot state default AUTO, press “ mode (X) ” key parameters are selected as “ AUTO → AUTO-C → AUTO-L; AUTO&rdquo → AUTO-R; →

Note 1: in series mode is “ ESR” in parallel mode is “ RP” Xs / Xp is activated only at main parameter R (resistance).

3Series parallel measurement mode selectionIn the corresponding main mode, press “ the value (R) ” the key, the parameter is selected as &ldquo in turn; AUTO- → P → S → AUTO-”.

4Measuring frequencyThis bridge, providing 3 frequency test points: 100HZ/1KHZ/7.8KHZ default frequency 1KHz, press “ frequency (F) ” key to select different frequencies to measure “ 1KHZ → 7.8KHZ → 100HZ → 1KHZ”.

5Open circuit / short circuit calibration compensationThe measuring clamp is in open or short circuit state, according to “ zeroing (C) ” key can sweep frequency open / short circuit calibration compensation. (measuring clamp open circuit press “ zeroing (C) ” key can sweep frequency open circuit; clear test clip short circuit; press C button to do short-circuit clearing)

6.Relative measurement

In the measurement mode, press the &ldquo parameter (Q); ” key will record the current measured value and enter the relative measurement mode, press &ldquo again; the parameters of (Q) ” key or mode switch, will exit the relative measurement. In the relative measurement mode, the secondary participants show the relative error in the recorded value of the measured object, which is expressed as a percentage.
The range of expression is: -99.9% to +99.9%

Measuring battery internal resistance: string 1uF high voltage CBB, the total value minus CBB ESR

U test chart:

1000uF 16V

Teacher Xu electric bridge plastic shell desktop machine kit://


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Urban Simplicity Store (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Why shop with us

700+ Clients Love Us!

We offer best service and great prices on high quality products

Shipping to 185 Countries

Our store operates worldwide and you can enjoy free delivery of all orders

100% Safe Payment

Buy with confidence using the world’s most popular and secure payment methods

2000+ Successful Deliveries

Our Buyer Protection covers your purchase from click to delivery

Shopping cart