twintex LCR Series User manual

LCR Meter
Operation Manual V1.1
BENCHTOP LCR METER

I
CONTENTS
SAFETY INSTRUCTION........................................................................................................................... III
1. PRODUCT INTRODUCTION.............................................................................................................- 1 -
1-1. Description .................................................................................................................................- 1 -
1-2. Features.....................................................................................................................................- 1 -
1-3. Front Panel Introduction.............................................................................................................- 1 -
1-4. Rear Panel Introduction.............................................................................................................- 4 -
2. PANEL OPERATION..........................................................................................................................- 5 -
2-1. <MEAS DISPLAY>.....................................................................................................................- 5 -
2-2. <BIN DISPLAY> (available for 200kHz model only)..................................................................- 9 -
2-3. <MEAS SETUP>......................................................................................................................- 10 -
2-4. <SYSTEMS SETUP>...............................................................................................................- 11 -
2-5. <COMM SETUP>.....................................................................................................................- 12 -
2-6. <ABOUT SYSTEM>.................................................................................................................- 13 -
2-7. Data Storage............................................................................................................................- 13 -
2-8. <INTER Files List> and <EXT Files List>................................................................................- 14 -
3. SPECIFICATIONS............................................................................................................................- 16 -
3-1. Measurement Range................................................................................................................- 16 -
3-2. Accuracy...................................................................................................................................- 16 -
4. HANDLER INTERFACE (available for 200kHz model only)............................................................- 20 -
4-1. Pin Definition............................................................................................................................- 20 -
4-2. Time Sequence of Interface Signal..........................................................................................- 21 -
4-3. Schematic Diagram of Interface Signal ...................................................................................- 21 -
5. REMOTE CONTROL .......................................................................................................................- 22 -
5-1. RS232C Interface.....................................................................................................................- 22 -
5-2. USB HOST...............................................................................................................................- 22 -
6. MAINTENANCE...............................................................................................................................- 23 -
6-1. Inspection.................................................................................................................................- 23 -
6-2. Fuse Replacement...................................................................................................................- 23 -
7. TECHNICAL SPECIFICATIONS......................................................................................................- 24 -
Appendix: Programming Manual..........................................................................................................- 25 -

II
Use of Operation Manual
Please read through and understand this Operation Manual before operating the product. After reading, always
keep the manual nearby so that you may refer to it as needed. When moving the product to another location, be
sure to bring the manual as well.
Calibration Notification
We notify that the LCR meters included in this manual are in compliance with the features and specifications as
stated in this manual. Before shipment, the LCR meter has been calibrated in factory. The calibration procedures
and standards are compliant to the national regulations and standards for electronic calibration.
Warranty
We guarantee that the LCR meter has been passed strict quality check. We warrant our LCR meter’s mainframe
and accessories in materials within the warranty period of one year. We guarantee the free spare parts for
products which are approved defective in this period. To get repair service, please contact with your nearest
sales and service office. We do not provide any other warranty items except the one being provided by this
summary and the warranty statement. The warranty items include but not being subjected to the hinted
guarantee items related to tradable characteristics and any particular purpose. We will not take any
responsibility in cases regarding to indirect, particular and ensuing damage, such as modifications to the circuit
and functions by the users, repairing or component replacement by the users, or damage during transportation.
For product improvement, the specifications are subject to change without prior notice.

III
SAFETY INSTRUCTION
This chapter contains important safety instructions that you must follow when operating the LCR meter and
when keeping it in storage. Read the following before any operation to insure your safety and to keep the best
condition for the LCR meter.
Safety Symbols
The following safety symbols may appear in this manual or on the LCR meter:
Identifies conditions or practices that could result in injury or loss of life.
Identifies conditions or practices that could result in damage to the LCR meter or to
other properties.
High voltage
Refer to the manual
Protective conductor terminal
Earth (ground) terminal
Chassis ground terminal
Safety Guidelines
General Instruction
⚫Do not place heavy objects on the casing.
⚫Avoid serious impact or improper handling to prevent damage to the LCR meter.
⚫Preventive measures for releasing static electricity should be taken when
connecting the LCR meter.
⚫Do not block the air ventilation holes on the two sides and on the back of the
chassis.
⚫Do not disassemble the LCR meter unless you are professionals.
Power supply
AC Input voltage: 110V/220V±10%, 50/60Hz
Connect the protective grounding conductor of the AC power cord to an earth ground
to avoid electrical shock.
Fuse
⚫Make sure the correct type of fuse is installed before power up.
⚫Replace the AC fuse with the same type and rating as the original fuse.
⚫Disconnect the power cord before fuse replacement. Make sure the cause of fuse
blowout is fixed before fuse replacement.
Cleaning
⚫Disconnect the power cord before cleaning.
⚫Use a soft cloth dampened in a solution of mild detergent and water. Do not spray
any liquid.
⚫Do not use chemicals or cleaner containing harsh material such as benzene,
toluene, xylene, and acetone.
Operation environment
⚫Location: indoor, no direct sunlight, dust free, almost non-conductive pollution.
⚫Relative humidity: <80%
⚫Altitude: <2000m
⚫Temperature: 0°C ~ 40°C
Storage environment
⚫Location: indoor
⚫Relative humidity: <70%
⚫Temperature: 10°C ~ 70°C

- 1 -
1. PRODUCT INTRODUCTION
1-1. Description
The LCR series are high precision LCR meter with basic accuracy 0.1% and maximum measurement frequency
10kHz, 30kHz and 200kHz. The 5-digit 4.3-inch TFT LCD display gives easy reading. The RS-232 interface
facilitates in remote control and analysis of measurement results. With its fast measurement speed, wide
frequency range and low cost, the LCR series are widely used in R&D, IQC, online quality control and automatic
test system.
1-2. Features
⚫32-bit core processor
⚫5-digit 4.3-inch TFT LCD display
⚫2 signal source output impedance: 30Ω, 100Ω
⚫100 sets memories for internal storage/save
⚫500 memories for U disk storage/save, supports FAT16 and FAT32 files
⚫Save the last parameter settings before power off
⚫Standard interface: RS232, HANDLER, USB HOST
1-3. Front Panel Introduction
PASS FAI L MEAS SETUP SYSTEM FI LE TRI G
4GHI 10
5JKL
6MNO
2ABC
3DEF
7PQRS
8TUV
9
WXYZ
+/ -
ESC
OK
TOOL
1 2 3 54
6 7 9 8 10 11 12 13 14 15
16
17
18
19

- 2 -
1) Power switch
Press to power ON or OFF the LCR meter.
2) Name label
It shows brand and model number.
3) USB HOST interface
Connect U flash disk to save or load the file.
4) [TOOL]
Make a short press to this key, the menu soft key area shows corresponding menus. Make a short
press again, the menus disappear.
Make a long press (>1 second) to this key, the LCR meter panel is locked. Other keys (except TOOL
key) are locked, no response to press.
Make a long press again to this key, the LCR meter panel is unlocked.All keys response to press.
When the LCR meter is controlled by RS232, the LCR meter front panel is locked by default. Make a
long press to this key again to unlock the front panel.
5) Measurement terminals: LD, LS, HS, HD
4-teminal test lead is used to connect 4-terminal test fixture or cable to measure DUT.
It is recommended to use the test lead attached to the LCR meter. Using self-made test lead or test
lead from other suppliers may cause error in measurement results.
6) LCD display
4.3-inch TFT LCD displays measurement results and conditions.
7) Soft keys
Five soft keys are used to select parameters. The corresponding function of each soft key has been
displayed on its left (the right part of LCD). The function definition varies with different pages.
8) CURSOR keys
This key is used to move the cursor on the LCD displayed page. When the cursor moves to a zone, the
corresponding zone will be lightened.

- 3 -
9) PASS indicator
The indicator lights on to show that the test result has passed.
10) FAIL indicator
The indicator lights on to show that the test result has failed.
11) [MENU]
Five soft keys are used to select parameters. The corresponding function of each soft key has been
displayed on its left (the right part of LCD). The function definition varies with different pages.
When the LCD display the <MEAS DISPLAY> page and the cursor key moves to <MEAS DISPLAY>,
press [MEAS] key to display the measurement results in full screen.
12) [SETUP]
Press this key to enter measurement parameter setup page.
13) [SYSTEM]
Press this key to Enter system setup page.
14) [FILE]
Press this key to enter file management page.
15) [TRIG]
When the trigger mode is set to MAN mode, press this key to trigger the LCR meter.
16) [ESC]
ESCAPE key.
17) [ ]
BACKSPACE key is used delete the last numeric of the input value.
18) [OK]
This key is used to end the input of data, and confirm and save the data displayed on the inputting line.
19) Number keys
These keys are used to input data to the LCR meter. The key consists of numerical keys [0] to [9],
decimal point [.] and [+/-] key.

- 4 -
1-4. Rear Panel Introduction
EXT
RS-232C
HANDLER
USB RATI NG FUSE
∥110V/ 60Hz 30VA
∥220V/ 50Hz 30VA
T1. 0AL 250V
T0. 5AL 250V
FOOT. C
1 2 3 4 5 6
789
1
RS-232C interface
6
Voltage selector
2
USB device interface
7
Power socket
3
Headset interface
8
EXT extension interface
4
FOOT.C foot switch interface
9
HANDLER interface
5
GND screw

- 5 -
2. PANEL OPERATION
2-1. <MEAS DISPLAY>
Press [MEAS] key, the <MEAS DISPLAY> page will be displayed on screen as shown below:
< MEAS DISP >
MEAS
DISP
FUNC : Cp-D
RANGE : AUTO
FREQ : 1 kHz
SPEED : SLOW
BIN
DISP
LEVEL : 1.00V
COMP : OFF
／
Cp
: -
0.0015p F
D
:
0.3697
Vm:OFF
Im:OFF
Quick
Clear
Use softkeys to select
2-1-1. MEAS DISP
In <MEAS DISP> page, use the four direction keys (▲▼◄►) to move cursor to choose of FUNC, FREQ,
LEVEL, RANGE, SPEED, COMP. Pressing [QUICK CLEAR] softkey can make quick clear to all parameters.
Test parameter
When parameter “Cp-D”of FUNC is selected, other test parameters are display in the right side of the screen.
Each parameter can be selected by its softkey. There are test parameters of Cs-D, Cp-D, Ls-Q, Lp-Q, Rs-Q,
Rs-D, Rp-Q, Rp-D, R-X, Zs-θ, Zs-r.
< MEAS DISP >
Cs-D
FUNC : Cp-D
RANGE : AUTO
FREQ : 1 kHz
SPEED : SLOW
Cp-D
LEVEL : 1.00V
COMP : OFF
／
Cp
: -
0.0015p F
Ls-Q
D
:
0.3697
Lp-Q
Vm:OFF
Im:OFF
MORE
1/4
Use softkeys to select

- 6 -
Range mode (not available for 10kHz model)
There are four range modes to choose from: Auto, Hold, Increase +, Decrease -
< MEAS DISP >
AUTO
FUNC : Cp-D
RANGE : AUTO
FREQ : 1 kHz
SPEED : SLOW
HOLD
LEVEL : 1.00V
COMP : OFF
／
Cp
: -
0.0015p F
INCR +
D
:
0.3697
DECR -
Vm:OFF
Im:OFF
Use softkeys to select
Test frequency
Different models have different test frequency points. Press increase or decrease key to choose the last or the
next frequency points.
10kHz model: 100Hz, 120Hz, 1kHz, 10kHz
30kHz model: 100Hz, 120Hz, 1kHz, 10kHz, 20kHz, 30kHz
200kHz model: 40Hz, 50Hz, 60Hz, 75Hz, 100Hz, 120Hz, 150Hz, 200Hz, 250Hz, 300Hz, 400Hz, 500Hz,
600Hz, 750Hz, 800Hz, 1kHz, 1.5kHz, 2kHz, 2.5kHz, 3kHz, 4kHz, 5kHz, 6kHz, 7.5kHz, 10kHz,
12kHz, 15kHz, 15.7kHz, 16.2kHz, 20kHz, 25kHz, 30kHz, 40kHz, 50kHz, 60kHz, 66.6kHz,
75kHz, 100kHz, 120kHz, 150kHz, 200kHz (38 points)
< MEAS DISP >
INCR + +
FUNC : Cp-D
RANGE : AUTO
FREQ : 1 kHz
SPEED : SLOW
INCR +
LEVEL : 1.00V
COMP : OFF
／
Cp
: -
0.0015p F
DECR -
D
:
0.3697
DECR - -
Vm:OFF
Im:OFF
Use softkeys to select