Agilent Technologies 6811B инструкция обслуживания

Quick Start Guide A gilent Technologies Models 6811B - 6814B, 6834B, and 6843A A C Pow er Solutions Documentation Map Quick Start Guid e (this document) Condensed ov erview of ac source operation. Read this to quickly get started. Quick Reference Card Memory jogger for fron t panel and re mo t e p r o gr ammi ng c o mma nd s. Use this if y o u are [...]

2 Contents The front panel, at a glance 3 The rear panel, at glance 4 What the ac source can do 5 How to use the front panel 7 Some basic operations 9 Measuring the output 11 Program ming output transients 13 Program ming trig ger synchroniz ation and delays 15 The front panel menus, at a g lance 17 Agilent sales and Support Offices 20 Safety Notic[...]

3 The front panel - at a glance 14-character display shows menu com mands and measured v alues. ♦ Annunciators indicate operating modes and status conditions. Rotary controls set voltage and frequency when ac source is in local mode. ♦ Turn rapidly for coarse control ♦ Turn slowly for fine control. and scroll through m enu comm ands. and scro[...]

4 The rear panel - at a glance Rear Panel Connections ( see Chapt er 3 i n the User’s Guide f or det ai l s) 1 INH (Rem ote Inhibit) TTL input signal for externally disabling the power source. FLT (Discrete Fault Indicator) TTL output sig nal when there is a device fault. 2 RS-232 connector for rem ote controller. 3 TRIGGER BNC connectors for ext[...]

5 What the ac source can do Generate waveform shapes ♦ Sinewave ♦ Squarewave ♦ Clipped sinewav e ♦ User- definable waveform s Program the output ♦ Phase Agilent Models 6811B, 6812B, 6813B program the following additional output functions: ♦ Ac r ms vol tage ♦ Dc vo lt age ♦ Distortion ♦ Peak Current limit ♦ Frequency ♦ AC coup[...]

6 Sy nchronize transient events or measurements with external signals ♦ Triggers applied to the unit ♦ Triggers g enerated by the unit Operate in four transient modes ♦ Fixed ♦ Step ♦ Pulse ♦ List Operate under local or remote control ♦ From the front panel k eys ♦ Through the built- in GPIB or RS-232 interfaces Implement protection[...]

7 How to use the front panel Make sure the unit is turned on. From the Sy stem key group Press Local to activate the front panel k eypad if the unit is not already in local m ode. (If the Local Lockout com mand is in effect, cycle power to return the unit to local m ode.) From the Function key group Press Voltage to select the voltage function. To [...]

8 The following chart shows the com mands in the Voltage function m enu. Some comm ands may not appear on all models. Menus are circular, you can return to the starting position by continuously pressing p or q . Key Display Command Funct ion VOLT <value> Set imm ediate rms outpu t voltage VOLT: T <value> Set trigger ed rms output vo lta[...]

9 Some basic operations Make sure the unit is turned on. Use either the front panel k eys or the corresponding SCPI comm ands. The column on the left indicates the front panel k eys that program the indicated action. If the SCPI program ming sy ntax is substantially different from the front panel m enu comm and, it is shown inside parentheses ( ). [...]

10 Set the rms current limit (and peak current on A gilent 6811B/6812B/6813B units) CURR:LEV 10 When this comm and is sent, the rms current lim it is set to 10 A. If m ore current than the program med lim it is drawn, the output voltage am plitude is reduced to keep the rm s current within the specified limit. Press Shift Current and q to access CU[...]

11 Measuring the output All m easurements are based on acquiring and subsequently processing output waveform information. When the ac source is on, it takes m easurements and updates the front panel m eter continuously. The Meter k ey accesses the measurem ent functions from the front panel. The SCPI MEA Sure command acquires new waveform informati[...]

12 Harmonic measurements Use the harm onic menu to mak e harmonic m easurements of the output current. The following exam ple illustrates the current mag nitude measurem ents returned at harmonics 0 to 5. Note that harm onic 1 is the fundamental. Harm onic 0 is the dc component. 0.01A I :MAG:0 current amplitude at harm onic 0 (FETC/MEAS) 1.43A I :M[...]

13 Programming output transients Up to now the ac source has been program med with the transient system in Fixed mode. The following examples briefly describe the transient system’ s Step, Pulse, and List modes, w hich require the application of a trigg er to implem ent the transient mode. NOTE: For the examples that follow , press Shift Output ,[...]

14 More transient examples The previous exam ples showed how the transient system can be used to control the output voltage amplitude. The transient sy stem can also control output frequency, phase, w aveform shape, v oltage and frequency slew rates, offset v oltage, and peak current lim it. The following exam ples illustrate how the transient syst[...]

15 Programming trigger sy nchronization and delays The previous transient exam ples were programm ed to respond to imm ediate triggers. Howev er, delayed and phase synchroniz ed triggers can also be program med as show n in the following examples. No delay ; no phase synchronization VOLT: M STEP VOLT 120 VOLT:T 150 DELAY 0 SYNC:SOUR IMM INIT : IMM [...]

16 Trigger delay ; 90 degree phase synchronization VOLT: M STEP VOLT 120 VOLT:T 150 DELAY .0167 SYNC:SOUR PHAS SYNC:PHAS 90 INIT : IMM ED When these comm ands are sent, the voltag e amplitude changes at the next 90 degree phase ang le that occurs after the .0167 second delay has expired, following the receipt of a trig ger. VOLT level TRIG level 90[...]

17 The front panel menus - at a glance Press to change the ac s ource’ s select ed interf ace from remote oper ation to local (fron t panel) operation. Pressing the k ey will have no effec t if the i nt erface st ate is alr eady Local, Loc al- with- Loc kout, or Remot e-with-Loc kout. Error Error Functions ERROR <value> Display s system err[...]

18 Trigger Trigger Funct ion Press ing the Shift Tr igger key gener ates an immediat e trigger Trigger Cont rol Functions INIT:I MMED Initi ate trigger i mmediately INIT:C ONT ON | OFF Ini t iate trigger continuousl y TRIG:SOUR BUS | EXT TTLT | IMM Select t ransient t rigger sour ce DELAY <val ue> Set trigger delay in sec onds ABORT Abort all[...]

19 These key s let y ou s croll t hrough choic es in a parameter list th at apply t o a s pecifi c command. Paramet er lists are circ ular; y ou c an retur n t o the start ing positi on by continuous ly pres s ing either k ey. If the command has a numeric range, these key s increment or decrement the exist ing value. − The numeric k eys 0 thr oug[...]

20 A gilent Sales and Support Offices For more inform ation about Agilent Technolog ies test and measurement products, applications, serv ices, and for a cur rent sales of fice list ing, v i sit our web sit e: http:// www.agilent.com/find/tmdir You can also contact one of the following centers and ask for a test and measurem ent sales representativ[...]