UNI-T LCR-1000 series Operation Manual Download Page 29

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6. MAINTENANCE

6-1. Inspection



Inspect the LCR meter at regular intervals so that it maintains its initial performance for a long time.



Check the input power cord for damage of the vinyl cover and overheating of the plug and cord stopper.
Check the terminal screws and binding posts for loosening.

6-2. Fuse Replacement

Step

Take off the power cord and remove the fuse socket using a minus driver.

Replace the fuse in the holder.

Fuse rating: T1.0/250V for 110Vac input, T0.5/250V for 220Vac input.

Summary of Contents for LCR-1000 series

Page 1: ...LCR Meter LCR 1000 series Operation Manual V1 0 BENCHTOP LCR METER ...

Page 2: ...R 1010 9 2 3 MEAS SETUP 10 2 4 SYSTEMS SETUP 10 2 5 COMM SETUP 11 2 6 ABOUT SYSTEM 11 2 8 Data Storage 12 2 8 INTER Files List and EXT Files List 12 3 SPECIFICATIONS 15 3 1 Measurement Range 15 3 2 Accuracy 15 4 HANDLER INTERFACE 19 4 1 Pin Definition 19 4 2 Time Sequence of Interface Signal 20 4 4 Schematic Diagram of Interface Signal 21 5 MAINTENANCE 25 5 1 Inspection 25 5 2 Fuse Replacement 25 ...

Page 3: ...ict 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 ...

Page 4: ...ity 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 i...

Page 5: ...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 RS 232 HANDLER USB HOST Optional interface USB DE...

Page 6: ... 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 measuremen...

Page 7: ...AS 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 val...

Page 8: ...SE 110V 60H z 30VA 220V 50H z 30VA T1 0A L 250V T0 5A L 250V FO O T C 1 2 3 4 5 6 7 8 9 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 ...

Page 9: ... 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 ...

Page 10: ... 120Hz 1kHz 10kHz LCR 1030 100Hz 120Hz 1kHz 10kHz 20kHz 30kHz LCR 1200 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 LEVEL 1 00V ...

Page 11: ...CR 1200 can be set from 0 05V to 1V MEAS DISP 1V FUNC Cp D RANGE AUTO FREQ 1 kHz SPEED SLOW LEVEL 1 00V COMP OFF 0 3V Cp 0 0015p F D 0 3697 0 1V INCR Vm OFF Im OFF DECR Use softkeys to select Comparator Comparator can be set ON or OFF Press BIN DISP softkey to enter bin display for more details MEAS DISP ON FUNC Cp D RANGE AUTO FREQ 1 kHz SPEED SLOW LEVEL 1 00V COMP OFF OFF Cp 0 0015p F D 0 3697 B...

Page 12: ...LOW LEVEL 1 00V COMP OFF DISP OFF Cp 0 0015p F D 0 3697 DEV OFF Vm OFF Im OFF Use softkeys to select Parameter area In parameter area the test parameter and its value are displayed Font size of the parameters can be set as small size of large size by pressing FONT softkey Parameter value display can be turn on or off by pressing DISP softkey Deviation can be set as OFF ABS or by pressing DEV softk...

Page 13: ...p F BIN D 0 0033 QUICK CLEAR Use softkeys to select COMP Set comparator ON or OFF AUX Set auxiliary ON or OFF COUNT Set counting ON or OFF NOMINAL Input nominal value via numeric keys or softkeys It is reference value of main parameter range Deviation is for main parameters only There are 3 operations to Deviation OFF ABS or ABS Absolute Deviation The absolute deviation is the currently measured v...

Page 14: ...and TrigSource Set trigger source as INT or EXT TrigDelay Set trigger display time between 0ms to 6000ms Input numbers by numeric keys or soft key and TrigEdge Set trigger edge as RISING or FALLING Handler Set comparator to CLEAR HOLD PULSE PulseWidth Set pulse width between 1ms to 9999ms 2 4 SYSTEMS SETUP Press SYSTEM key SYSTEMS SETUP page will be displayed on screen as shown below SYSTEM SETUP ...

Page 15: ...g power on the LCR meter automatically detects the password file and read it to get password 2 5 COMM SETUP Press COMM SETUP softkey COMM SETUP page will be displayed on screen as shown below COMM SETUP SYSTEM Bus Mode RS232C SETUP BaudRate 9600 COMM Data Bit 8 SETUP Stop Bit 1 ABOUT Parity None SYSTEM Tx Term LF GpibAddr 08 CMD Type SCPI Use softkeys to select Bus Mode Set bus mode as RS232C GPIB...

Page 16: ...r into data storage menu MEAS DISP PrtSc FUNC Cp D RANGE AUTO FREQ 1 kHz SPEED SLOW LEVEL 1 00V COMP OFF SAVE DATA Cp 0 0015p F D 0 3697 SINGLE SHORT SINGLE OPEN Vm OFF Im OFF Use softkeys to select There are three formats for data storage A B COMP A and B are measurement results for main parameter and secondary parameter respectively The measurement results are stored in the way of scientific not...

Page 17: ...eys to select Operation steps 1 Read existing files 1 Use and keys to choose files Or Input numbers to choose corresponding file and then press OK key to confirm 2 Use and keys o choose pages 2 Save parameter to files 1 Move cursor to file number Press STORE softkey to save parameter to the selected file 2 Press YES softkey to continue or press NO softkey to cancel operation 3 If press YES softkey...

Page 18: ...YES softkey to upload file 4 Copy file to USB flash disk 1 Plug USB flash disk into USB host 2 Move cursor to the file name to be copied or input file name directly 3 Press YES softkey to copy 4 If the file name already exists press Continue softkey to cover the existing file of press ESC to cancel operation ...

Page 19: ...Ω 0Ω 50Ω 4 30Ω 15Ω 100Ω 5 10Ω 0Ω 15Ω 3 2 Accuracy 3 2 1 Accuracy of Z L C R X The accuracy Ae of Z L C R X is shown as below Ae A Ka Kb Kf 100 KL Kc A Basic measurement accuracy Refer to Fig 3 1 Ka Impedance scaling factor Refer to table 3 4 impedance 500Ω Kb Impedance scaling factor Refer to table 3 4 impedance 500Ω Kc Temperature factor Refer to table 3 5 Kf Calibration interpolation factor Refe...

Page 20: ...uracy of θ The accuracyθe of θ is calculated according to θe 100 180 e A deg 3 2 4 Accuracy of Rp When Dx the measured value of D 0 1 The accuracy of Rp is calculated according to Rp e x e px D D D R Here Rpx is the measured value of Rp Dx is the measured value of D De is the accuracy of D 3 2 5 Accuracy of Rs When Dx the measured value of D 0 1 The accuracy of Rs is calculated according to Rse Xx...

Page 21: ...ig 3 1 In Fig 3 1 the basic accuracy A can be selected by below method 0 1 a smaller value When VS 1V measurement speed is accuracy of medium and slow speed 0 2 a larger value When VS 1V measurement speed is accuracy of fast speed ...

Page 22: ... s m V Z fm 100kHz 200 2 10 1 3 s m V Z 70 1 10 3 9 s m V Z Fast fm 100Hz 100 1 400 1 10 5 2 3 m s m f V Z 100 1 100 1 10 2 9 m s m f V Z 100Hz fm 100kHz 400 1 10 5 2 3 s m V Z 100 1 10 2 9 s m V Z fm 100kHz 400 2 10 5 2 3 s m V Z 100 1 10 6 9 s m V Z Note fm measured frequency Hz Zm measured impedance of DUT Vs voltage of test signal mVrms Table 3 5 Temperature Factor Kc Temperature 5 8 18 28 38 ...

Page 23: ...3 EXT TRIG Rising edge of this signal triggers measurement Pulse width 1μs Low level drive current approx 5 10mA 16 17 18 5V Internal 5V power output Normally it is not recommended to use internal power source If the internal power source must be used please make sure the signal s current is less than 0 3A and ensure the signal is well shielded from interference 27 28 EXTV External DC power source...

Page 24: ...r the HANDLER interface signal output reference ground of the LCR meter is connected with COM 4 2 Time Sequence of Interface Signal Fig 4 3 Time sequence chart Time MIN Value MAX Value T1 Trigger pulse width T2 Delay time of starting measurement T3 Trigger waiting time after EOT output 1us 200us 0us Display time 200us ...

Page 25: ...2 standards Only the minmal subset as table 5 1 is available Table 5 1 Fig 5 1 Connection illustration Signal Abbreviation Connector s Pin number Send data TXD 2 Receive data RXD 3 Ground GND 5 5 3 Description to GPIB Interface The GPIB IEEE488 interface is a universal intelligent instrument bus interface The LCR meter can be connected with computer or other intelligent instruments through GPIB in...

Page 26: ...nected to one bus 3 There is no rule on how to connect cables However it is recommended to impose four back connectors on one instrument Fig 5 2 GPIB Connector and Pinout Figt 5 3 Superimposition of two back connectors Figt 5 4 Superimposition of four back connectors Connector s function Code Function Description SH1 Data source contact Three line connection ...

Page 27: ...sk and read to determine the operating status of the instrument SERVICE REQUEST When the series instrument requests the controller to perform a task the instrument will send SRQ service request signal SRQ signal is considered as an interrupt that tells the controller to be prepared for data transmission or there is an error condition When the series instrument sends the SRQ service request signal ...

Page 28: ...In the first time of connecting the instrument to computer via USB cable the computer will reminds of Find New Device and then pop up installation windows Follow the installation instructions and install the USB driver successfully A USB Test and Measurement Device will be found in the Device Manager ...

Page 29: ...put power cord for damage of the vinyl cover and overheating of the plug and cord stopper Check the terminal screws and binding posts for loosening 6 2 Fuse Replacement Step 1 Take off the power cord and remove the fuse socket using a minus driver 2 Replace the fuse in the holder Fuse rating T1 0 250V for 110Vac input T0 5 250V for 220Vac input ...

Page 30: ...255 Delay time 0 60s step 1ms Calibration function Open circuit Short circuit Load Measurement terminal 5 terminal Display mode Direct Δ Δ V I monitoring test voltage and current Display 5 digit 4 3 in LCD display Measurement signal Output impedance 30Ω 100Ω Test level 0 1V 0 3V 1V 0 1V 0 3V 1V 0 1V 0 3V 0 5V 1V Test level accuracy 5 Measurement display range Z R X 0 01m Ω 99 999 MΩ Y G B 0 0001µS...

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