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TH1778A
DC Bias Current Source
Operation Mannual
Tonghui Electronic Co.,Ltd.
www.tonghui.com.cn
Page 1: ...1 TH1778A DC Bias Current Source Operation Mannual Tonghui Electronic Co Ltd www tonghui com cn...
Page 2: ...Safety 6 1 4 9 Electromagnetic Compatibility 6 Chapter 2 Installation 7 2 1 Accessories 7 2 1 1 Current Output Clip 7 2 1 2 Footswitch 7 2 1 3 Link Line 7 2 1 4 Test Fixture 7 2 2 Front Panel Descript...
Page 3: ...Output 18 Chapter 4 Command 19 4 1 TH1778A RS232 Instruction 19 4 2 SCPI Command 19 4 2 1 General command set 19 4 2 2 Parameter Sub System Command 20 4 2 3 State Sub System Command 21 4 2 4 System Su...
Page 4: ...high precision and high frequency test needs The instrument has a new design friendly graphical operation interface and offers a variety of control modes manual key control foot switch control and re...
Page 5: ...f forward current output If directional current is needed please change the connection direction between DUT and the output end Display the real time working state of the main machine and the slaver W...
Page 6: ...power filter 1 4 6 Dimension W H D 430 185 473 mm3 1 4 7 Weight 18kg 1 4 8 Safety This tester is a Class I safe equipment 1 4 8 1 Insulation resistance In the reference working conditions the insulat...
Page 7: ...ine is ET 07 2 and ET 54 Note when the current is greater than 40A please do not use it as the current output 2 1 2 Footswitch The standard footswitch is TH1801 001 2 1 3 Link Line Each TH1778S slave...
Page 8: ...8 2 2 Front Panel Description 1 Power Switch Press down to power on push out to power off 2 Start Button To start output 3 Stop Button To stop output 4 DC Bias LED...
Page 9: ...g the test signal and DUT produce the test access through AC coupling 13 Balance 14 Serial Port RS232 The output of the bias source and its parameters can be controlled through the serial port accordi...
Page 10: ...utput current can be set on the setting interface or on the main interface Using the numeric keypad you can set the current value The default unit is A The seting range of current value is listed belo...
Page 11: ...o the host and each slave and display in the table In addition to displaying the respective current it can also display the status of each slave and the host Status Meaning Off Indicates that the slav...
Page 12: ...the numeric keyboard to set the response frequency the default unit is Hz The response frequency setting range is 0 2MHz 3 2 1 3 Rise Time Make use of the numeric keyboard to set the current rise tim...
Page 13: ...se of the numeric keyboard to set the current step value the default unit is A the setting range is 0 120A 3 2 2 4 Scan Point Make use of the numeric keyboard to set the scan point amount the setting...
Page 14: ...et the delay time 1 Move the cursor to the desired place and make use of the numeris keyboard to input each value 2 Move the cursor to the place where the delay time has been set already and make use...
Page 15: ...on the switch to start outputting loosen the switch to stop outputting 3 3 1 3 Beep Volume To set the speaker to ON OFF 3 3 1 4 System Language The system language includes Chinese and English two op...
Page 16: ...d there will be a progress bar to indicate the progress The instrument will restart automatically while the upgrade is completed 3 3 2 2 Restore Factory Setting Select Rest to restore factory setting...
Page 17: ...r Serial Number of the instrument is provided 3 3 2 5 Password Users are able to set a new password or change the password 3 3 2 6 Slave Information You can use this feature to view the slave index an...
Page 18: ...RT the instrument starts to output current 3 4 2 Stop Current Output 3 4 2 1 Stop Button Press the stop button to stop outputting current 3 4 2 2 Foot Switch In Trig mode step and release the foot swi...
Page 19: ...ers can also buy the serial port cable from Tonghui 4 2 SCPI Command Note that all the following command are sent and received as strings Each command must be followed by a terminator or the instrumen...
Page 20: ...ge 0 120 Data Accuracy 0 1 Data Unit A Set Example To set the current to 1A enter the command PARA CURR 1 Query Example If you enter the command PARA CURR the returned content is 1 indicating the curr...
Page 21: ...ormat Query Format STAT HOST Returned Info Data type Unsigned integer 1 byte Data Range 0 31 0x1F Meaning Bit0 On or Off Bit1 Running or not Bit2 Over heat or not Bit3 Overload or not Bit4 Unbalanced...
Page 22: ...g Query Example If you enter the command STAT WORK the returned content is running indicating the instrument is outputting current 4 2 4 System Sub System Command System Sub System Command is used to...
Page 23: ...Chinese enter the command SYST LANG CHI Query Example If you enter the command SYST LANG the returned content is CHI indicating the current system language is Chinese SYST TRIG Function Set or query t...
Page 24: ...nt output enter the command WORK START WORK STOP Function Stop current output Command Format WORK STOP Example To stop current output enter the command WORK STOP 4 2 6 Other Command REMO LOCK Function...
