Handheld LCR Meter User’s Manual V1.0.
Content Safety ........................................................................................................................................ 1 Safety Guidelines...................................................................................................................... 1 Safety Symbols ......................................................................................................................... 1 Introduction ....................................................................
Safety Review the following safety precautions carefully before operate the device to avoid any personal injuries or damages to the device and any products connected to it. To avoid potential hazards use the device as specified by this user’s guide only. ⚫ Only professionally authorized personnel can perform maintenance. ⚫ Do not run the product when the outer cover or panel is open. ⚫ Do not operate with suspected failures.
Environment ⚫ Please do not operate the instrument in the place that is dusty, vibrative, under direct sunlight or where there is corrosive air. ⚫ The normal working temperature is 0℃～40℃, relative humidity ≤75%, so the instrument should be used under above condition to guarantee the accuracy. ⚫ Please store the instrument in the place where temperature is between 5℃ and 40℃, humidity is less than 85%RH.
Introduction This handheld LCR meter is used to measure inductance, capacitance, resistance and other components of the parameters, small size, using 7.4V lithium battery power supply, can be applied to desktop applications, more mobile measurement and handheld measurement occasions to provide great convenience. It provides a resolution of four thousands digits for main parameters and a resolution of 0.0001 for secondary parameter. The highest measurement frequency is 100kHz, and can measure the level of 0.
Chapter 1 Overview of front panel 1.1 Front panel Description of the front panel is shown in the figure (Note: In this manual, long press means holding the key for more than 2 seconds). 1. Display: 2.8 inch TFT LCD screen, which display all functions of the instrument. 2. R-X shortcut key: Select the main parameter as R and the secondary parameter as X directly. 3. C-D shortcut key: Select the main parameter as C and the secondary parameter as D directly. 4.
10. Main parameter key: Switch to the main parameters quickly. You can select Auto, R, L, C, Z in turn. Auto is the function of automatic parameters. LCR selects the appropriate combination of main parameters and secondary parameters according to the properties of the current tested component. 11. Secondary parameter key: Switch to the secondary parameters quickly. If the main parameter select as Auto, this key will not work. 12. Equivalent mode key: Switch equivalent between SER and PAL quickly.
1.2 User’s Interface 1.2.1 Measurement Interface 1. Main parameter display 2. Secondary parameter display 3. ’HOLD’ indicates the data holding state. 4. USB connection state, displayed when it is connected to the PC and hidden at any other time; When connected the instrument to the computer in the initial, the USB icon is white, which means that the USB is connected. At this time, the key is still available and unlocked.
On the system settings interface users can set the language, auto power off, brightness, power setting and buzzer. And view the model and version of the instrument. Press [SET] key to enter the system setting interface, press the arrow key to select the setting option and highlight, and press the arrow key for specific setting. Then press the [SET] button again to view the model and version of the instrument. Press [SET] key again to exit the system setting interface.
Chapter 2 Operation instruction 2.1 Startup and shutdown Press the power key to start the instrument and the measurement interface is shown (default). Press the power key again to shutdown it. 2.2 Test parameter 2.2.1 Test frequency Handheld LCR applies AC test signal to the DUT for measurement. Frequency is one of the main parameters of the AC source.
2.2.3 Test range There are two ways to change the test range: Method 1: Press [RANGE] key to switch between different test ranges. Method 2: Turn on the instrument and the measurement display is shown, press the left and right arrow keys to move the cursor to the RANGE zone, and the up and down arrow keys to switch the range (AUTO, 100Ω, 1kΩ, 10kΩ, 100kΩ). 2.2.
The deviation value between current test value and standard value will display on the secondary parameter position. Short press this key to select the required tolerance value successively (1%, 5%, 10% and 20% optional). The color bar at the top of the screen will be used to judge GOOD/NG. Green GOOD means within tolerance, red NG means beyond tolerance, the indicator light of this key lights up at the same time. Long press this button or change the primary and secondary parameters to exit this function.
Press the [HOLD] key, and "LOLD" will be shown on the LCD to indicate that the data hold function is activated. And measurement results for the main and secondary parameters are those displayed before pressing the HOLD key. Turn off reading hold: In hold mode, press again the [HOLD] key, and "HOLD" disappears from the LCD, the instrument returns to normal measurement mode. 2.
2. Short press [REL] key for open (OPEN) or short (SHORT) circuit correction, then the instrument detects automatically whether it is open or short circuit. If the correction is successful, the secondary display shows "SUCCESS"; or it shows "FAILED". Note: Do not change the state of the test terminals during the correction. 3. Once finished the correction ends, press [REL] key to return to the measurement display. 2.7 Firmware Update 1. Download the tool "DfuSe Demo v3.0.5" and install it.
3. Open DfuSe Demo software, click "Choose" button to select the Upgrade firmware (***. Dfu), and click "Upgrade" to Upgrade it. After finished it, click "Leave DFU mode" to exit the programming mode. If the device is not identified, please repeat step 2. 4. Close the “DfuSe Demo” software.
Chapter 3 Quick application guide Warning: ⚫ Do not measure the charged capacitor, or it may cause damage to the instrument. ⚫ In case of measurement of on-board devices, make sure the power is turned off. The active circuit cannot be measured directly. ⚫ When used in the dusty environment, the instrument is easy to gather dirt, so it should be cleaned periodically to protect the test port to prevent the dust from entering the instrument.
3.1 Resistance measurement See the below figure for the connection test. 1. Press the power key to start the instrument. 2. Press the [AUTO/R/C/L/Z] key until Rs/Rp is displayed on the interface which means to select resistance measurement. 3. Insert the resistor into the test notch, or choose the appropriate test accessories (rubber plug alligator clip) and connect it with the measured resistance. 4. Press the [FREQ] key to select the desired test frequency, press [LEVEL] to select the desired level. 5.
3.2 Capacitance measurement Warning: Make sure that the capacitor has been fully discharged before measuring. See the below figure for the connection test. 1. Press the power key to start the instrument. 2. Press the [AUTO/R/C/L/Z] key until Cs/Cp is displayed on the interface which means to select capacitance measurement. 3. Insert the capacitor into the test notch, or choose the appropriate test accessories (rubber plug - alligator clip) and connect it with the measured capacitor. 4.
1. Press the power key to start the instrument. 2. Press the [AUTO/R/C/L/Z] key until Ls/Lp is displayed on the interface which means to select inductance measurement. 3. Insert the inductor into the test notch, or choose the appropriate test accessories (rubber plug alligator clip, Kelvin test fixture, etc.) and connect it with the measured inductor. 4. Press the [FREQ] key to select the desired test frequency, press [LEVEL] to select the desired level. 5. Read the measurement results from the screen. 3.
Chapter 4 Telecommunication The instrument can be connected to PC through the Type C-USB interface. After installing the driver on the PC, handheld LCR can be controlled from or the test results acquired by the PC through the virtual serial port. 4.1 Connect the instrument to PC Please refer to following steps to connect to PC: 1. Locate the USB driver software in the CD. 2.
Data type The data in the form of ASCII characters transmitted on the bus may have the following types: Type Meaning Example Integer +800,-200,100 Decimal +1.56,-0.001 Exponential floating number +2.345678E+04 -1.
Terminator You can choose anyone of the following characters to end. (Enter 0x0D) (Line break 0x0A) 4.2 Command Reference 4.2.1 Public command Public command applied universally to various kinds of instrument defined by the public command IEEE488, the public command starts with *. For example, *IDN?，*GTL，*LLO. This machine supports only a few Public commands.
Description: Query the main parameter type Parameter: None Return: (3) FUNCtion:impb Description: Select a secondary parameter type Parameter: Return: None (4) FUNCtion:impb ? Description: Query a secondary parameter type Parameter: None Return: (5) FUNCtion:RANGe Or FUNCtion:RANGe Description: Select the range Parameter:
FETCh ? Description: Query data Parameter: None Return: Main parameters, secondary parameters, gear number 22
Chapter 5 Specification The general and measurement precision specification of LCR are described below. 5.
Capacitance C and dissipation D ◼ 100Hz/120Hz/400Hz Range ◼ Accuracy De Equivalent mode recommended 4.000mF∼20.000mF 8.00%+5 digits 0.0800 Series 4mF 400.0μF∼3.9999mF 2.00%+3 digits 0.0200 Series 400μF 40.00μF∼399.99μF 0.60%+2 digits 0.0060 Series 40μF 4.000μF∼39.999μF 0.40%+2 digits 0.0040 Series 4μF 400.0nF∼3.9999μF 0.40%+2 digits 0.0040 ---- 400nF 40.00nF∼399.99nF 0.4%+2 digits 0.0040 Parallel 40nF 4.000nF∼39.999nF 0.5%+3 digits 0.0050 Parallel 4nF 0pF∼3.999nF 1.
◼ 40nF 4.000nF∼39.999nF 0.6%+2 digits 0.0060 ------ 4nF 400.0pF∼3.9999nF 0.6%+2 digits 0.0060 Parallel 400pF 40.00pF~399.99pF 1%+3 digits 40pF 0.000pF~39.999pF 3%+5 digits 0.0100 Parallel ------ Parallel Accuracy De Equivalent mode recommended 75KHz/100kHz Range Range of display Accuracy Ce 10μF 4.000μF∼10.000μF 8.0%+20 digits 0.0800 Series 4μF 400.0nF∼3.9999μF 5.0%+10 digits 0.050 Series 400nF 40.00nF∼399.99nF 1.5%+5 digits 0.0150 Series 40nF 4.000nF∼39.
◼ 400mH 40.00mH∼399.99mH 0.4%+2 digits 0.0040 ------ 40mH 4.000mH∼39.999mH 0.4%+2 digits 0.0040 Series 4mH 400.0uH∼3.9999mH 1%+3 digits 0.0100 Series 400uH 0.00uH~399.99uH 3.0%+5 digits ------ Series Accuracy Le Accuracy De* 40kHz/50KHz Range Range of display Equivalent mode recommended 1H 400.0mH∼999.9mH 2.0%+4 digits 0.0200 Parallel 400mH 40.00mH∼399.99mH 0.8%+2 digits 0.0080 Parallel 40mH 4.000mH∼39.999mH 0.8%+2 digits 0.0080 ------ 4mH 400.0uH∼3.9999mH 0.
Impedance Z and phase angle ◼ ◼ ◼ 100Hz/120Hz/400Hz/1kHz/4KHz/10kHz e Equivalent mode recommended Range Range of display Accuracy Ze 20MΩ 4.000MΩ~20.000MΩ 3.0%+10 digits 3.4° Parallel 4MΩ 400.0kΩ~3.9999MΩ 1.2%+3 digits 0.7° Parallel 400kΩ 40.00kΩ~399.99kΩ 0.3%+3 digits 0.2° Parallel 40kΩ 4.000kΩ~39.999kΩ 0.25%+2 digits 0.1° ------ 4kΩ 400.0Ω~3.9999kΩ 0.25%+2 digits 0.1° Series 400Ω 40.00Ω~399.99Ω 0.25%+2 digits 0.1° Series 40Ω 4.000Ω~39.999Ω 0.5%+3 digits 0.
Chapter 6 Maintenance Warning: ◆ Do not repair the instrument arbitrarily; it should be maintained and repaired by professional personnel. ◆ Keep the instrument away from liquid; do not leave articles especially conductive objects in the instrument. 6.1 Service If the equipment fails and cannot be switched on, you should first check the battery and external power supply, power jack, etc.
Accessories Standard accessories list: ⚫ Handheld LCR (lithium battery installed) ⚫ CD ⚫ A type C-USB communication cable ⚫ An AC power adapter ⚫ A pair of red / black rubber plugs –alligator clip test line ⚫ A short-circuit bar Please check according to the accessories list after the box is opened, if any component is missing, please immediately contact the company or the related dealer.
