EUCOL U2810D Скачать руководство пользователя страница 20 | Manualshive

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EUCOL U2810D Скачать руководство пользователя страница 20

3-14

displayed on the LCD.

3. Repeat step 2 and 3, signal source output impedance will be switched between 30

Ω

and 100

Ω

.

3.2.7 Measurement Range

Perform the following steps to set the measurement range

1. Assume the current measurement range is set to “Auto” status. Press

RANGE

key to

change the measurement range from the “Auto” mode to the “Hold” mode. When the
measurement range is set to the “Hold” mode, “

Auto

” is turned off from the LCD, the

impedance range is fixed at the current range setting.

3.2.8 Trig Mode

U2810D provides 4 kinds of trig modes:

INT : Internal trigger mode

MAN: Manual trigger mode

EXT : External trigger mode

DUT : DUT trigger mode

BUS: BUS trigger mode

Performing the following steps to set the measurement mode

：

1. Press TRIG MODE key to switch trig mode from INT to BUS, and the current

measurement mode will be displayed on LCD.

Note: when the DUT mode is selected, the nominal value of primary parameter should be
entered.

3.2.9 Correction

U2810D’s OPEN correction capability cancels errors due to the stray admittance (G, B) in
parallel with the device under. U2810D’s SHORT correction capability corrects for the
residual impedance (R, X) in serial with the device under test.

Perform following steps for the open and short correction:

1. When the U2810D is under the measurement status, Press CLEAR key to enter the

correction function.

2. If the fixture is open, the information shown in Figure 3-2 will be displayed.

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Содержание U2810D

Страница 1: ...OPERATION MANUAL U2810D LCR Meter EUCOL CHANGZHOU Electronic Technology Co Ltd www eucol com cn...

Страница 2: ......

Страница 3: ...NT CIRCUIT 3 12 3 2 5 1 Series and Parallel Circuit Setup 3 12 3 2 5 2 How to Select the Measurement Circuit Mode 3 12 3 2 6 SIGNAL SOURCE OUTPUT IMPEDANCE 3 13 3 2 7 MEASUREMENT RANGE 3 14 3 2 8 TRIG...

Страница 4: ...ACCURACY 6 34 6 7 1 MAXIMUM AND MINIMUM VALUES USED FOR ACCURACY CALCULATION 6 35 6 7 2 MEASUREMENT SPEED FACTOR KS 6 35 6 7 3 MEASUREMENT VOLTAGE LEVEL FACTOR KV 6 35 6 7 4 MEASUREMENT FREQUENCY FACT...

Страница 5: ...y other charges for products returned to EUCOL from another country Limitation of Warranty This warranty does not apply to defects resulting from improper or inadequate maintenance and care by Buyer B...

Страница 6: ...with the 3 pole power cable z Don t operate in an explosive atmosphere To prevent explosion or file don t operate the instrument in the presence of inflammable gases or fumes z Use the proper fuse Re...

Страница 7: ...calibration or service 1 2 Power Requirements 1 Voltage 198 to 242 Vac 2 Frequency 47 5 to 63 Hz 3 Power 20 VA maximum 4 In accordance with internal safety standards this instrument is equipped with...

Страница 8: ...x or a similar box for storage 5 The instrument especially the test leads should be kept far away from strong electromagnetic field to avoid interference with measuring precision 1 5 Use Test Fixture...

Страница 9: ...hows the brief description of each key on the U2810D s front panel 1 Brand and Model Mark and model of instrument 2 LCD Display the measurement results and test conditions etc 3 Comparator Indication...

Страница 10: ...test frequency The secondary function is the comparison function key COMP d SHIFT key The primary function is the secondary function enable key The secondary function is the return the meter key LOCA...

Страница 11: ...atus it is the down cursor or decrease key k TRIG MODE key The primary function is the trig mode setup key Under limit status it is the right cursor key l TRIGGER key The primary function is the trigg...

Страница 12: ...face This is the USB device interface connector used when operating through the USB interface 4 RS232C Interface This is the RS232C interface connector used when operating through the serial interface...

Страница 13: ...uency is 10 kHz 2 Test Signal Level Indication 0 1 V is on The current test signal voltage is 0 1 V 0 3 V is on The current test signal voltage is 0 3 V 1 0 V is on The current test signal voltage is...

Страница 14: ...isplay mode 10 The primary Parameter Indication Indicate the current measuring primary parameter user selected L is on Inductance is measured and displayed C is on Capacitance is measured and displaye...

Страница 15: ...is on The current key function is the secondary function is off The current key function is the primary function 17 Comparator Function Indication is on The comparator function is turned on is off The...

Страница 16: ...he Primary Function Operation 3 2 1 Measurement Function U2810D measures two components of the complex impedance parameters at the same time in a measurement cycle The primary and secondary measuremen...

Страница 17: ...function is changed to R X Primary parameter indication is R secondary parameter indication is X 4 Press PAR A key measurement function is changed to Z Primary parameter indication is Z secondary para...

Страница 18: ...ed to MED and MED is indicated on the LCD 3 Press SPEED key the measurement speed is changed to SLOW and SLOW is indicated on the LCD 4 Press SPEED key the measurement speed is changed back to FAST an...

Страница 19: ...ly for low values of inductance the reactance becomes relatively small compared with that of a large inductance so the series resistance component is more significant So the series equivalent circuit...

Страница 20: ...gger mode DUT DUT trigger mode BUS BUS trigger mode Performing the following steps to set the measurement mode 1 Press TRIG MODE key to switch trig mode from INT to BUS and the current measurement mod...

Страница 21: ...y area Then U2810D continues correction with the following frequency points and ranges 8 The instrument will return to measurement status after the open correction is successfully completed 9 If short...

Страница 22: ...rce output impedance Test signal voltage level If you press ESC key to interrupt the current correction process and return to the measurement status The origin correction data will not be change If FA...

Страница 23: ...p status 1 Press SHIFT key and will be displayed on the LCD 2 Press BEEP key the current beep status will be displayed on the LCD as shown in figure 3 5 3 Press or key to select the following beep sta...

Страница 24: ...at step 2 and 3 will not be displayed on the top of LCD That means comparator function is turned off 3 3 2 2 Input the Low High Limits Three pairs of primary parameter limits one pair of secondary par...

Страница 25: ...mit value of secondary parameter Perform the following steps to set the high low limits 1 Press SHIFT key to enable the secondary function will be displayed on the LCD 2 Press LIMITS key the Auxiliary...

Страница 26: ...ect the digit decimal or unit to be modified The selected digit decimal or unit will be flashing 12 Press ESC key to return to the main menu without changing the previous nominal value 13 Press ENTER...

Страница 27: ...yed on the LCD 3 Press DISP key the display mode is changed to mode and is indicated same on the top of LCD If you want change from mode to ABS mode refer to previous limits setup 3 3 4 Automatic iden...

Страница 28: ...tion efficiency Table4 1 Handler interface signal description 4 2 Operation 4 2 1 Signal Definition The handler interface uses three kinds of signals comparison output control input and control output...

Страница 29: ...2 BIN 3 Primary parameter parameter Secondary Low High AUX NG NG AUX High Low Figure 4 1 P1 P2 P3 AUX NG signal s area example Contact assignment is described in Table 4 2 Pin assignment for handler i...

Страница 30: ...e the current is less than 0 3A 19 20 21 22 23 24 25 26 NC No Connection 27 28 EXTV External DC voltage DC voltage supply pins for DC isolated open collector outputs P1 P2 P3 AUX NG and DC isolated in...

Страница 31: ...4 25 Figure 4 2 Pin Assignment for Handler Interface Connector...

Страница 32: ...h T2 Measurement Start Delay Time T3 Trigger wait time after EOM output Time Minimum Value Maximum Value 10us 200us 0us Display time 200us 1 Refer to Charpter 3 for measurement time 2 Typical comparis...

Страница 33: ...s of the DC isolated outputs are described in Table 4 3 Table 4 3 Electrical Characteristics of DC Isolated Output DC Isolated Input Opto coupled The TRIG signal pin 12 and 13 is connected to the cath...

Страница 34: ...e the internal power Pins 1 and 2 of the jumper J205 should be connected Pins 1 and 2 of the jumper J204 should be connected Use the external power Factory default Pins 2 and 3 of the jumper J205 shou...

Страница 35: ...as follows Table 5 1 RS 232C Signal Definition 5 2 U2810D s Serial Interface U2810D only used the smallest subset of the RS232C standard the signals are listed as shown in Table 5 2 Table 5 2 U2810D S...

Страница 36: ...ort parameter is showed as table 5 3 Table 5 3 Serial port parameter BAUD 9600 bps DATA 8 BIT Stop bit 1 BIT Correction Null End symbol NL new line symbol ASCII code is10 Connector DB9 5 5 Software Pr...

Страница 37: ...ormation immediately even if the whole command has not been executed So if the command includes two queries the controller should read the query responses twice One query is recommended to be included...

Страница 38: ...alent Measurement Circuit SER Series equivalent circuit PAR Parallel equivalent circuit The actual capacitor resistor and inductor are not the ideal capacitor resistor and inductor Normally a componen...

Страница 39: ...for high impedance component such as small capacitor or large inductor the parallel equivalent circuit mode is the appropriate choice We also select the equivalent circuit mode according to the actual...

Страница 40: ...nent Bus When the measurement mode is set to BUS U2810D performs a signal measurement every time the TRIG IMM command is sent to the U2810D via the RS232 interface 6 5 Measurement Terminals 4 Measurem...

Страница 41: ...d be taken for better measurement accuracy 6 7 1 Maximum and Minimum Values Used for Accuracy Calculation Table 6 2 Maximum and Minimum values 6 7 2 Measurement Speed Factor ks Slow ks 0 Medium ks 0 F...

Страница 42: ...due to parasitic stray impedances of the test fixture Short Correction Short correction eliminates measurement errors due to parasitic residual impedances of the test fixture 6 13 Comparator Function...

Страница 43: ...e Baud rate fixed 9600bps Maximum transmission distance 15 m The programming language is SCPI All commands and data are transmitted using the ASCII codes over the bus 6 17 HANDLER interface U2810D can...

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