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VI-700 V&l Source

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Figure 7.1: Layout for VI-700 Printed Circuit Board

SERIAL INTERFACE

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T7

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T1

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Содержание VI-700

Страница 1: ...mmable Voltage and Current Source PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT VIIM 700 cover p65 TEL 516 334 5959 800 899 8438 FAX 516 334 5988 www ietlabs com Long Island NY Email info ietlabs com IET LABS Inc VI 700 IM Rev K2 Copyright 2005 IET Labs Inc ...

Страница 2: ... PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT VIIM 700 cover p65 TEL 516 334 5959 800 899 8438 FAX 516 334 5988 www ietlabs com Long Island NY Email info ietlabs com IET LABS Inc ...

Страница 3: ...d at no charge when returned to IET Changes in this product not approved by IET or application of voltages or currents greater than those allowed by the specifications shall void this warranty IET shall not be liable for any indirect special or consequential damages even if notice has been given to the possibility of such damages THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIE...

Страница 4: ... ARE USED TAKE ALL MEASURES TO AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS USE MAXIMUM INSULATION AND MINIMIZE THE USE OF BARE CONDUCTORS WHEN USING THIS INSTRUMENT Use extreme caution when working with bare conductors or bus bars WHEN WORKING WITH HIGH VOLTAGES POST WARNING SIGNS AND KEEP UNREQUIRED PERSONNEL SAFELY AWAY CAUTION DO NOT APPLY ANY VOLTAGES OR CURRENTS TO THE TERMINALS OF THIS...

Страница 5: ...Optional 5 3 3 2 1 IEEE 488 Control 5 3 3 2 2 BCD Control 6 3 4 Setting of Output Level 6 3 5 Connection to Terminals 6 3 6 Overload Indicators 7 3 7 HP High Power Option 200 mA Load Current Capacity 7 3 8 HV High Voltage Option 200 V Output Optional 7 3 9 HI High Current Option 200 mA Output Optional 8 Chapter 4 IEEE INTERFACE OPTION 9 4 1 Introduction 9 4 2 Capabilities 9 4 3 Address Switch and ...

Страница 6: ...tion Steps 14 7 3 1Voltage Calibration 14 7 3 2 HV X10 Output Optional 14 Figures Figure 1 1 VI 700 Manual or Programmable Voltage and Current Source 1 Figure 2 1 Typical OPERATING GUIDE Affixed to Unit 3 Figure 5 1 Layout for VI 700 Printed Circuit Board 14 Figure 7 1 Layout for VI 700 Printed Circuit Board 15 Tables Table 3 1 Digital Input Connector Pin Assignments 8 Appendix A SCPI COMMAND REFE...

Страница 7: ...tput load cur rent capacity to 200 mA for all the voltage ranges This makes the VI 700 suitable for many precision low to moderate power applications Chapter 1 INTRODUCTION INTRODUCTION Figure 1 1 VI 700 Manual or ProgrammableVoltage and Current Source The VI 700 offers many full performance features It fulfills a variety of laboratory needs Its wide out put range up to 200 V very low output imped...

Страница 8: ...usive of random transients Temperature Coefficient 10 ppm ºC typical 15 ppm º C maximum 2 2 HP High Power Option 200 mA Load Current Capacity Output Current 200 mA maximum load with LED overload indicator on all ranges SPECIFICATIONS Chapter 2 SPECIFICATIONS Since significant current may be drawn from this unit it is advisable to leave the mA terminals open The current OVLD LED will remain on if t...

Страница 9: ... VOLTAGE 1 CNTRL MODE button has no effect for non programmable units 2 Make the most secure connection to the V terminals if significant current is drawn 3 Current OVLD LED indicator is on if mA terminals are open This is of no concern or leads may be shorted together 4 The ground terminal is connected to earth ground and may be connected to either VOLTAGE terminal MODEL VI 700 SN J1 0540317 OPER...

Страница 10: ...ra tion Operating Temperature Range 20ºC to 40ºC 20ºC to 28ºC for HP High Power Option Power Requirement 105 125 V or 210 250 V 50 60 Hz 5 W Recommended Calibration Interval 12 months Dimensions 7 1 cm W x 22 9 cm D x 12 6 cm H 8 5 x9 0 x2 8 with IEEE 488 option 22 cm W x 24 cm D x 12 cm H 8 5 x9 25 x4 44 Weight 1 6 kg 3 5 lb with no options 4 1 kg 9 lb with HV and IEEE options ...

Страница 11: ...ent with the IEEE 488 option should come on 3 3 1 Local Operation 1 Set the CNTRL MODE switch to LOCAL i e pointing to the thumbwheel switches The associated LOCAL lamp if present with IEEE 488 option should come on For units without a remote programming option this switch has no effect 2 Program the output level manually as described in subsection Setting of Output Level below 3 3 2 Remote Operat...

Страница 12: ...d minimum drift al low the unit to warm up for at least one hour The front panel controls simultaneously set both the voltage and current output levels This output may be conveniently and directly read on the front panel The output in volts and milliamperes is exactly the MULTIPLIER setting times the number shown on the thumbwheel switches For example a setting of X10 and 1 335 outputs 13 35 V and...

Страница 13: ...if the mA terminals are open and this indica tor may be disregarded The OVLD indicator will behave normally under normal operation It is important to realize that the OVLD indicators are conservatively set The output in the overload region may be used as long as care is exercised The voltage output remains precise for 50 100 current overload with only a slight degradation in accuracy of the order ...

Страница 14: ... 6 4 2 Viewed Straight On 3 9 HI High Current Option 200 mA Output optional To obtain an X10 higher output current set the VI 700 to the X10 Range and either toggle the 200 mA toggle switch or depress the 200 mA OUTPUT but ton switch to 200 mA The effective current multi plier becomes X100 The 200 mA switch must be OFF in order to use the X0 1 and X1 current range ...

Страница 15: ...nd testing See Section 5 5 4 2 Capabilities The IEEE option provides remote control over the output value it does not control the range Decimal Address SWITCH SETTINGS 5 4 3 2 1 Decimal Address SWITCH SETTINGS 5 4 3 2 1 0 0 0 0 0 0 16 1 0 0 0 0 1 0 0 0 0 1 17 1 0 0 0 1 2 0 0 0 1 0 18 1 0 0 1 0 3 0 0 0 1 1 19 1 0 0 1 1 4 0 0 1 0 0 20 1 0 1 0 0 5 0 0 1 0 1 21 1 0 1 0 1 6 0 0 1 1 0 22 1 0 1 1 0 7 0 0...

Страница 16: ...cally finds your device at start up and it lets you enter just the data that you want to send to the de vice This program works with ICS Measurement Computing and National Instruments controllers To implement request a download of ICS_GPIBkybd_Install zip from IET Labs Tech Support Unzip the file and follow instructions to install Open the application You may use the Find Listen ers button to conf...

Страница 17: ...er returns CR LF and as a prompt after executing any command Echo back RS232 Message Mode Prompt Terminator On CR LF CR LF Off LF LF 5 1 Introduction The SERIAL option adds RS 232C and SCPI 1994 0 capability to the VI 700 series instruments The SCPI standard provides a tree like series of standard com mands for programmable instruments so that similar instruments by different manufacturers can be ...

Страница 18: ... that you want to send to the de vice This program works with ICS Measurement Computing and National Instruments controllers To implement request a download of ICS_Serkybd_Install zip from IET Labs Tech Support Unzip the file and follow instructions to install Open the application Initialize the COM PORT and use the Device Command window to send a com mand string to the VI 700 where the command st...

Страница 19: ...t All preceding and trailing zeros must be included to complete 4 characters any other characters in those spaces will be ignored A decimal point may not be included Combine with the SOURce DATA command For example Value Command 195 mV SOURce DATA 0195 in Range X1 0 100 1 mV SOURce DATA 1001 in Range X0 1 6 3 Determining the VI 700 Configuration The IEEE 488 2 specification defines the IDN string ...

Страница 20: ...s to an integrated circuit IC and an appended num ber refers to a particular pin on that IC e g 1 A5 2 refers to pin 2 of IC 5 on the main printed circuit board The notation T refers to a trimmer potenti ometer 7 3 Calibration Steps Turn on the VI 700 and allow it to stabilize for one hour 7 3 1 Voltage Calibration 1 Attach the digital voltmeter DVM leads se curely to the voltage output binding po...

Страница 21: ...VI 700V l Source 15 Figure 7 1 Layout forVI 700 Printed Circuit Board SERIAL INTERFACE T3 T4 T5 T6 T7 T11 T1 ...

Страница 22: ...immer 1 T6 to obtain a current voltage reading as close to zero as possible 0 05 µA 50 µV or less is satisfactory 4 Set the VI 700 to 1 799 on the X10 range 5 Adjust trimmer 1 T11 to obtain a current of 17 990 mA voltage of 17 990 V 6 Set the VI 700 to 1 799 on the X0 1 range 7 Adjust trimmer 1 T7 to obtain a current of 179 90 µA voltage of 179 90 mV 7 3 4 HighCurrentOutputCalibration Optional 1 A...

Страница 23: ...rminates a RESPONSE MESSAGE Asterisk defines a 488 2 common command Ends a query where a reply is expected SCPIbuildsontheprogrammingsyntaxofIEEE 488 2 to give the programmer the capability of handling a wide variety of instrument functions in a common manner This gives all instruments a common look and feel SCPI commands are not case sensitive The portion of commands shown in capitals denotes the...

Страница 24: ... option only EXTernal 0 1 or OFF ON 0 BAUD numeric value 9600 PARity EVEN ODD NONE BITS 7 8 SBITs 1 2 NETwork 0 1 or OFF ON 0 ADDRess 0 15 4 UPdate no value command only RS485 0 1 or OFF ON 0 ERRor 0 No error VERSion 1994 0 SOURce Port Output DIGital DATA VALue 10 digits representing PO the possible decade values CALibrate Calibrate DATe mm dd yyyy SCPI COMMAND REF ...

Страница 25: ...its in the register Reading of this register resets the contents to zero Bit Description 7 Power On 6 User Request 5 Command Error 4 Execution Error 3 Dev Dep Error 2 Query Error 1 Request Control 0 Operation Complete IDN Identification Query Returns its identification code as four fields separated by commas These fields are manufacturer model serial number and hardware version RST Reset Restores ...

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