Agilent Technologies Turntable 5964 8134 User Manual

ADDENDUM  
to the  
Agilent 6811B, 6812B, and 6813B  
User’s Guide and Programming Guide  
for the  
Dual Power Analyzer Option 020/022  
Agilent P/N 5964-8134  
Microfiche No 5964-8135  
Printed in U.S.A.  
May, 2000  
 
Agilent Dual Power Analyzer Description  
The Agilent Technologies Dual Power Analyzer Option 020 is available on the following ac sources:  
Agilent 6811B AC Power Source (375VA)  
Agilent 6812B AC Power Source (750VA)  
Agilent 6813B AC Power Source (1750VA)  
Agilent 6813B Option 019 AC Power Source (2000VA)  
Option 020 consists of an additional Power Analyzer input on the back of the ac source, an external  
current shunt, and a cable to connect the current shunt to the ac source. Option 020 adds the following  
capabilities to the above listed ac source models:  
Voltage and current measurement inputs on the rear panel, with capabilities similar to the output  
voltage and current measurements available in standard Agilent ac sources.  
The ability to use any shunt for the external current measurement, allowing current measurements  
over a very wide range of magnitudes.  
Precisely synchronized measurements between the rear panel Power Analyzer input and the ac source  
output. This is possible because the Power Analyzer input has its own dedicated measurement buffer.  
New measurement commands that may be used in evaluating uninterruptible power supplies (To  
measure transfer time, peak voltage, and phase locked loop performance for example).  
Frequency modulation of the ac source output.  
As shown in the following figure, the Agilent Dual Power Analyzer also includes an Agilent supplied  
current shunt, which must be connected to the output of the equipment under test to make accurate  
voltage and current measurements. The specifications and supplemental characteristics of the Agilent  
Dual Power Analyzer are documented toward the end of this document.  
Power  
Analyzer Input  
(V & I sense)  
Agilent supplied cable  
Agilent supplied shunt  
Agilent AC SOURCE  
(side view)  
Line  
Load  
ac in  
output  
Equipment  
Under Test  
Shunt  
AC Source output  
ac line cables  
(customer supplied)  
Option 020 Typical Connections  
Agilent Option 022 Description  
Option 022 is simply an Agilent 6813B Option 019 AC Power Source combined with an Agilent Dual  
Power Analyzer Option 020. All of the Option 020 information in this document also applies to units that  
are configured as Option 022 units.  
3
 
Front Panel Menus - Additions  
The Power Analyzer input uses the same front panel menu commands that are used to measure the Main  
Output of the ac source. These are documented in the ac source Users Guide. The following menu  
commands have been added to let you access the Power Analyzer input, control the output frequency  
modulation, and calibrate the Power Analyzer input. In most cases you will need to press the  
Function key multiple times to access the menu item. Press the  
Entry key to access the parameter.  
φ1 115V 60 Hz  
φ2 120V 60 Hz  
FM OFF  
Displays the Main Output measurement when φ1 is selected  
Displays the Power Analyzer measurement when φ2 is selected  
Enable or disable output frequency modulation (OFF or ON)  
Specifies the modulating frequency of the output  
Specifies the peak deviation of the output frequency modulation  
Specifies the frequency input source (VOLT or CURR)  
Begin external current calibration  
Phase  
Select  
Freq  
FM:FREQ 50  
FM:DEV 10  
Input  
Shift  
FREQ:SRC VOLT  
CAL:CURR: EXT  
CAL:VOLT: EXT  
SHUNT  
Cal  
Begin external voltage calibration  
Enter a value for the external shunt in ohms  
NOTE:  
With no signal connected to the Power Analyzer input, the φ2 front panel display may  
return a very high frequency value. This is normal, since there is no external frequency  
for the measurement circuit to detect.  
SCPI Programming Commands - Additions  
The Power Analyzer input uses the same measurement commands that are used to measure the Main  
Output of the ac source. These are documented in the ac source Users Guide. The following SCPI  
commands have been added to let you access the Power Analyzer input, control the output frequency  
modulation, and calibrate the Power Analyzer input. Additional measurement functions let you measure  
transfer time, peak voltage, and phase locked loop performance when evaluating devices such as  
uninterruptible power supplies.  
CALibrate  
:CURRent  
:EXTernal  
:VOLTage  
:EXTernal  
MEASure | FETCh  
:VOLTage  
:RANKed? <percentile>  
:TVOLt? <level><occurrence>  
:ABSolute? <level><start_time><min_pulse_width>  
:SHUNt  
FM  
SENSe  
:STATe <bool>  
:NSELect 1 | 2  
:DEViation <value>  
:FREQuency <value>  
:FREQuency:SOURce VOLT | CURR  
4
 
Rear Panel Connections  
Power Analyzer input.  
Connector plug is  
removable.  
HP-IB  
LO HI  
LO HI  
RS 232  
I
V
SENSE  
. . . . .  
SENSE  
FLT INH  
_
+
-
+
OPTIONS  
LINE RATING  
CAUTION  
. . . .  
TRIGGER  
OUT  
1
WARNING  
WARNING  
SENSE  
O
1
COM COM  
L
1
L
2(  
N
)
_
300 VAC MAX TO  
Rear Panel, Overall View  
Installation  
Turn the unit off before connecting any wires.  
The Power Analyzer input to the ac source has both voltage and current sense inputs. Each sense input  
has a HI and a LO connection. The center pin of the connector is not used. The maximum isolation  
voltage to ground is 300 Vac (±425 Vdc).  
Use the 1-meter, Agilent supplied cable and connect the Power Analyzer input to the external shunt. Note  
that the cable connectors are keyed so that the cable will only fit one way. Disconnect the cable from the  
unit by pulling it straight back. Cable connections are shown in the following figure.  
IMPORTANT: You should always connect the V SENSE inputs for the Power Analyzer input to operate  
properly, even if you are not making voltage measurements. This is because frequency  
measurements are made by sensing the voltage signal, and many of the power analyzer  
measurements depend on an accurate frequency measurement. If a voltage signal is not  
available, use SENSe:FREQuency:SOURce (or its front panel equivalent) to select and  
measure the frequency from the current signal instead.  
If the Agilent supplied cable is too short, you may open the cable ends and replace the wiring in the cable  
with longer wires. Install the new cable in the same way as the original cable. The cable connectors  
accepts wire sizes from AWG 22 to AWG 12. Firmly tighten the screws when making wire connections.  
WARNING: SAFETY HAZARD You must replace the cable hoods after completing all connections.  
This is because the connector screw terminals will be at line potential during operation.  
5
 
LO HI  
LO HI  
V SENSE  
HI LO  
I SENSE  
HI LO  
I
V
SENSE  
SENSE  
CONNECTOR  
(AC SOURCE END)  
CONNECTOR  
(SHUNT END)  
HOODS PLACED  
OVER WIRES AND  
CONNECTORS  
WARNING, SAFETY HAZARD:  
Connector hoods must be installed  
on connectors. Connector screw  
terminals are at line potential  
during operation.  
RELEASE TAB  
CONNECTOR  
HALVES SNAP  
TOGETHER  
WIRES MUST BE INSTALLED IN  
STRAIN RELIEF INSIDE CONNECTOR  
RELEASE TAB  
Measurement Cable Connections  
Voltage Sensing at a Location Other than the External Current Shunt  
You may also need to open up the cable connector if you need to voltage sense at a point other than at the  
external current shunt. You must use your own sense cable to make the voltage sense connections. Please  
completely remove the voltage sense wires from the Agilent supplied measurement cable if you are using  
your own remote voltage sense cable. Disconnect the voltage sense wires from both cable connectors.  
To use your own cable to voltage sense at a point other than the external current shunt, make the  
connections at the point where you will be remote sensing. Insert the other end of your cable into the HI  
and LO voltage sense terminals of the ac source connector. The cable connectors accepts wire sizes from  
AWG 22 to AWG 12. Firmly tighten the screws when making wire connections.  
WARNING: SAFETY HAZARD You must replace the cable hoods after completing all connections.  
This is because the connector screw terminals will be at line potential during operation.  
6
 
External Shunt Line and Load Connections  
The Agilent supplied current shunt has both input (line) and output (load) connectors. The customer must  
supply the cables to connect the ac lines to and from the external current shunt. Agilent supplies one  
hooded cable cover for the input of the ac source and two hooded cable covers for the shunt. All three of  
these covers are assembled and installed in the same way. It is the customers responsibility to use these  
covers when making line cable connections. Note that a different cable cover is provided for the ac  
output of the ac source.  
The following figure shows the Load and Line connectors on the external current shunt. Note the  
location of the line, neutral and ground connectors and connect your cables accordingly. Note that the  
connections on the output of the ac source are not in the same order on the barrier block as on the shunt  
barrier block.  
WARNING: SAFETY HAZARD You must replace the cable hoods after completing all connections.  
This is because the screw terminals will be at line potential during operation.  
N
L
1. NEUTRAL CONNECTION (BLUE OR WHITE)  
2. LINE CONNECTION (BROWN OR BLACK)  
3. GROUND CONNECTION (GRN/YEL OR GRN)  
4. POWER CORD  
1
2
3
5. CONNECTOR NUT  
6. RUBBER BOOT  
7. POWER SAFETY COVER  
6
7
8
8. STRAIN RELIEF CONNECTOR  
4
5
Line Connections  
7
 
Check the External Current Shunt Setting  
After you have completed your cable connections, you can turn on and check out the ac source as  
described in the Turn-On Checkout chapter in the ac source Users Guide. One additional step in  
checking out a unit with Option 020/022 installed, is to make sure that the correct shunt value has been  
entered in the unit. To check the shunt value setting, proceed as follows:  
Action  
Display  
1.  
2.  
3.  
Turn on the ac source and wait for the unit to finish its internal selftest.  
Press Shift Calibration and scroll to the SHUNT command.  
SHUNT 0.01  
Check to see if the resistance value on the display matches the value written on the  
outside of the external current shunt.  
If it matches, press Meter to return to meter mode. You are done.  
If it does not match, you must enter the correct value. Proceed as follows:  
4.  
5.  
CAL ON 0.0  
SHUNT 0.01  
Press Shift Calibration, scroll to CAL ON and press Enter. If necessary, enter  
the calibration password from Entry keypad and press Enter. If the password is  
correct the Cal annunciator will come on.  
Press Shift Calibration and scroll to the SHUNT command. Enter the shunt  
value written on the outside of the external current shunt exactly as it is written on  
the label. Then press Enter.  
6.  
7.  
CAL:SAVE  
CAL OFF  
Press Shift Calibration, scroll to CAL SAVE, and press Enter.  
Press Shift Calibration, select CAL OFF, and press Enter to exit Calibration.  
NOTE:  
The shunt value that you enter applies only to the Power Analyzer input and has no  
effect on ac source output measurements. Therefore, ignore the φ1 and φ2 annunciators  
while entering the shunt value.  
Front Panel Programming  
Setting the Output Frequency Modulation  
To set the output frequency modulation:  
Action  
Display  
1.  
FM:FREQ 1  
On the Function keypad, press Frequency. Then scroll to the FM:FREQ command  
to enter a modulating frequency. Use the numeric keypad to enter a modulating value  
and press Enter.  
2.  
To set the peak frequency deviation of the output frequency modulation, press  
Frequency. Then scroll to the FM:DEV command to enter a frequency deviation.  
Use the numeric keypad to enter a value and press Enter.  
FM:DEV 10  
The deviation frequency must be less than the programmed output frequency by at  
least 0.001 Hz. Otherwise, it will result in Error 613.  
3.  
FM ON  
To enable frequency modulation, press Frequency, scroll to FM OFF, select the  
ON parameter and press Enter.  
8
 
Using the Front Panel Display with the Power Analyzer Input  
To select the measurement source:  
Action  
Display  
φ
2 115V 60Hz  
Press Meter to return the display to Meter mode. Press Phase Select at any time to  
toggle between the Main Output and the Power Analyzer input. The left-most digit of  
the front panel display will indicate either "φ1" for the Main Output, or "φ2" for the  
Power Analyzer input. If the φ2 front panel display returns a very high frequency  
value, it usually means that there is no signal connected to the Power Analyzer input.  
Note that the Phase Select key also selects the measurement source to which the  
current range setting applies. The current range command is located in the Input menu.  
Making Power Analyzer Input Measurements  
All measurements are based on acquiring and subsequently processing waveform information. Waveform  
information is acquired either from the ac source output or from the Power Analyzer input. When the ac  
source is on, it continually takes measurements and updates the front panel meter from whichever  
measurement source is active. The Meter key accesses the measurement functions from the front panel.  
This menu applies to both the ac source output and the Power Analyzer input.  
NOTE:  
The Shift Harmonic functions also apply to the Power Analyzer input.  
If the display indicates OVLD, the measurement capability of the unit has been  
exceeded.  
Use the Meter menu for making Power Analyzer input measurements:  
Action  
Display  
φ
2 115V 3.04A  
1.  
Press Phase Select to toggle to the Power Analyzer input. A φ2 will appear  
on the display when the Power Analyzer input is selected.  
2.  
Press Meter and q repeatedly to access the following measurement functions:  
φ
2
rms voltage and frequency (the default)  
rms voltage and rms current  
rms current and frequency (the default)  
rms voltage and power  
current crest factor  
peak current, repetitive  
peak current, non-repetitive  
apparent power  
<reading>V <reading>Hz  
<reading>V <reading>A  
<reading>A <reading>Hz  
<reading>V <reading>W  
<reading> CREST F  
<reading>A PK REP  
<reading>A PK NR  
<reading> VA  
φ
2
φ
2
φ
2
φ
2
φ
2
φ
2
φ
2
φ
2
reactive power  
power factor  
<reading> VAR  
<reading> PFACTOR  
φ
2
The ac source uses the output frequency value when calculating many of the output measurements. For ac  
source output measurements, the ac source uses the programmed output frequency value. For the Power  
Analyzer input , the ac source uses the frequency measured at the V SENSE input channel. This is the  
default setting. You can also select the I SENSE input channel as the frequency measurement source.  
Use the Input menu for selecting the frequency source:  
Action  
Display  
If a voltage signal is not available to measure the output frequency, you must  
select the current measurement as the frequency source. Press Input, scroll to  
FREQ:SRC VOLT, select the CURR parameter and press Enter.  
FREQ:SRC CURR  
9
 
Additional Measurement Commands  
The following additional measurement commands are provided with the Agilent Dual Power Analyzer  
Option 020/022. These measurement commands are optimized for use in specific applications such as  
evaluating uninterruptible power supplies. In this application the new commands can be used to measure  
transfer time, peak voltage, and phase locked loop performance of the UPS.  
NOTE:  
All MEASure and FETCh commands apply to both the Main Output and the Power  
Analyzer input. This includes commands documented in the ac source Users Guide and  
those described in this section. See SENS:NSEL to select a power analyzer input.  
MEASure:TVOLt?  
FETCh:TVOLt?  
Returns the time at which the measured voltage crosses a user-specified voltage level. The sign and  
magnitude of occurrence define the event to be reported. For example, if occurrence is -3, the return  
value is the third time at which the voltage crosses the level in the negative-going direction. If occurrence  
is 4, the return value is the fourth time at which the voltage crosses the level in the positive-going  
direction.  
The return value is with respect to the start of the measurement buffer. If no point on the waveform  
satisfies the specified conditions, the return value is 9.91000E+37.  
MEASure:[SCALar]:TVOLt? <level>, <occurrence>  
FETCh:[SCALar]:TVOLt? <level>, <occurrence>  
1E6 to 1E6 (for level)  
Query Syntax  
Parameters  
4096 to +4096, but not 0 (for occurrence)  
MEAS:TVOL? 50, 3 FETC:TVOL? 10, -1  
Examples  
Returned Parameters  
Related Commands  
<NR3>  
MEAS:TVOL:ABS?  
10  
 
MEASure:TVOLt:ABSolute?  
FETCh:TVOLt:ABSolute?  
Returns the time at which the absolute value of the measured voltage first exceeds level, with the  
following qualifications: The behavior of the signal before start_ time is ignored, and the absolute value  
of the voltage must remain above level for at least the specified min_ pulse_ width.  
Both start_ time and the return value are with respect to the start of the measurement buffer. If no point  
on the waveform satisfies the specified conditions, the return value is 9.91000E+37.  
MEASure:[SCALar]:TVOLt:ABSolute? <level>, <start_time>,  
<min_pulse_width>  
Query Syntax  
FETCh:[SCALar]:TVOLt:ABSolute? <level>, <start_time>,  
<min_pulse_width>  
0 to 1E6 (for level)  
0 to 1E6 (for start time in seconds)  
0 to 1E6 (for minimum pulse width in seconds)  
MEAS:TVOL:ABS? 50, 0, 0.001  
FETC:TVOL:ABS? 100, 0.005, 0  
Parameters  
Examples  
<NR3>  
MEAS:TVOL?  
Returned Parameters  
Related Commands  
MEASure:VOLTage:RANKed?  
FETCh:VOLTage:RANKed?  
Scans through the buffer of 4096 instantaneous voltage measurements, and returns the voltage value that  
corresponds to the percentile rank given. Specifying a percentile of 0 returns the lowest value in the  
buffer. A percentile of 100 returns the highest value in the buffer. A percentile of 50 returns the median  
value of the buffer. Stated another way, if you specify a percentile of 60, 60 percent of the voltage  
readings in the buffer are less that the returned value, and 40 percent of the readings in the buffer are  
greater than the returned value.  
If the voltage waveform consists of rectangular pulses that have narrow overshoots, using percentiles of  
approximately 5 and 95 (depending on the width of the pulses and the width of the overshoots) is a good  
way to determine the voltages at the flat portions of the pulses.  
MEASure:[SCALar]:VOLTage:RANKed? <percentile>  
FETCh:[SCALar]:VOLTage:RANKed? <percentile>  
0 to 100  
Query Syntax  
Parameters  
Examples  
MEAS:VOLT:RANK? 50  
<NR3>  
Returned Parameters  
11  
 
Additional Sense Commands  
The following additional sense commands are provided with the Agilent Dual Power Analyzer Option  
020/022. These commands let you select a measurement source and the frequency measurement channel  
for the Power Analyzer input.  
SENSe:NSELect  
Selects the measurement source that will return data when a query is sent. A parameter value of 1 selects  
the Main Output, which measures the actual output voltage and current of the ac source. A value of 2  
selects the Power Analyzer input, which measures the voltage and current at the V SENSE and I SENSE  
input channels. Note that this command is similar to, but not the same as, the command  
INSTrument:NSELect that is used in 3-phase sources.  
Only the following commands are affected by the measurement source selection:  
Queries beginning with MEASure or FETCh  
SENSe:CURRent:ACDC:RANGe <range>  
SENSe:NSELect <NR1>  
1 | 2  
Command Syntax  
Parameters  
1
*RST Value  
SENS:NSEL 2  
Examples  
SENSe:NSELect?  
<NR1>  
Query Syntax  
Returned Parameters  
SENSe:FREQuency:SOURce  
This command selects the frequency measurement source for the Power Analyzer input. It only applies  
when the Power Analyzer input is active.  
Accurate frequency measurements are critical when making all Harmonic measurement calculations.  
Other measurement calculations also use frequency measurement values, but they only slightly affect the  
accuracy of the measurement. The ac source normally measures the frequency at the V SENSE input  
channel. With this comand you can select the I SENSE input channel as the frequency measurement  
source for the Power Analyzer input.  
NOTE:  
For Main Output measurements, the ac source uses the programmed output frequency  
value when making measurement calculations.  
SENSe:FREQuency:SOURce <source>  
VOLTage | CURRent  
Command Syntax  
Parameters  
VOLTage  
*RST Value  
SENS:FREQ:SOUR CURR  
Examples  
SENSe:FREQuency:SOURce?  
<CRD>  
Query Syntax  
Returned Parameters  
12  
 
Additional Frequency Modulation Commands  
The following SCPI commands are used to program the output frequency of the ac source. These  
commands apply only to the Main Output of the ac source and do not affect the measurement capability  
of the unit. These commands are only provided with the Agilent Dual Power Analyzer Option 020/022.  
FM  
Turns off or on frequency modulation of the Main Output. Frequency modulation operates only if  
FREQuency:MODE is set to FIXed.  
[SOURce:]FM[:STATe] <bool>  
Command Syntax  
Parameters  
0 | 1 | OFF | ON  
OFF  
*RST Value  
FM 1  
FM:STATE ON  
Examples  
[SOURce:]FM[:STATe]?  
0 | 1  
FM:DEV FM:FREQ  
Query Syntax  
Returned Parameters  
Related Commands  
FM:DEViation  
Sets the peak frequency deviation of the output frequency modulation in Hertz. The frequency deviation  
must be less than the programmed output frequency by at least 0.001 Hz. For example, if the output  
frequency is set to 60 Hz, and you program a deviation of 10 Hz, the output frequency will modulate  
between 50 and 70 Hz at a rate determined by the FM:FREQuency command.  
[SOURce:]FM:DEViation <NRf>  
0 to 1000 Hz  
0
Command Syntax  
Parameters  
*RST Value  
Hz (Hertz)  
FM:DEV 10  
Unit  
Examples  
[SOURce:]FM:DEViation?  
<NR3>  
FM FM:FREQ  
Query Syntax  
Returned Parameters  
Related Commands  
FM:FREQuency  
Sets the modulating frequency of the output frequency modulation in Hertz.  
[SOURce:]FM:FREQuency <NRf>  
0.001 to 1000 Hz  
0.1  
Command Syntax  
Parameters  
*RST Value  
Hz (Hertz)  
FM:FREQ 1  
Unit  
Examples  
[SOURce:]FM:FREQuency?  
<NR3>  
FM FM:DEV  
Query Syntax  
Returned Parameters  
Related Commands  
13  
 
Additional Calibration Commands  
The following SCPI commands are used to calibrate the Power Analyzer input and external current  
shunt:  
CALibrate:VOLTage:EXTernal  
Initiates calibration of the external voltage measurement.  
CALibrate:VOLTage:EXTernal  
None  
CAL:VOLT:EXT  
Command Syntax  
Parameters  
Examples  
CALibrate:CURRent:EXTernal  
Initiates calibration of the external current measurement.  
CALibrate:CURRent:EXTernal  
None  
CAL:CURR:EXT  
Command Syntax  
Parameters  
Examples  
CALibrate:SHUNt  
Lets you enter the external current shunt value (in ohms). The external current shunt is used for external  
current measurement. The programming range is 1E-6 to 1E6. This parameter is nonvolatile, so there is  
no *RST value. As with other CAL commands, calibration must first be enabled with CAL:STATe, and  
the value must be made permanent with CAL:SAVE.  
CALibrate:SHUNt <value>  
Current shunt value in ohms  
CAL:SHUN .01  
Command Syntax  
Parameters  
Examples  
14  
 
Behavior Differences of Existing SCPI Commands  
This section documents the behavior differences of existing SCPI commands when the Power Analyzer  
input is selected or is active.  
MEASure | FETCh  
All standard ac source MEASure or FETCh functions are available for the Main Output of the ac source  
as well as the Power Analyzer input. The SENSe:NSELect command selects the measurement source that  
will return data.  
MEASure:FREQuency?  
When the Power Analyzer input is selected as the measurement source, this command returns the actual  
frequency measured at the V SENSE input channel. When the Main Output of the ac source is selected as  
the measurement source, this command returns the programmed output frequency.  
NOTE:  
With no signal connected to the Power Analyzer input, this command may return a very  
high frequency value. This is normal, since there is no external frequency for the  
measurement circuit to detect.  
SENSe:CURRent:ACDC:RANGe <value>  
Sets the current measurement range of the selected measurement source (see SENSe:NSELect). Normally  
when using the Main Output as the measurement source, you would put in a value and the ac source will  
automatically select the current range. If you are using the Power Analyzer input with an external current  
shunt as the measurement source, the crossover value of the current ranges can be determined with the  
following formula: Crossover_value = 0.05713/shunt_resistance. Values greater than the crossover  
value select the high current range. Alternatively, you can simply program MIN or MAX to select the  
low or high current range.  
TRIGger:ACQuire and other measurement trigger commands  
SENSe:SWEep:TINTerval and other measurement timebase commands  
SENSe:WINDow  
These commands always apply to both measurement sources, regardless of which source is selected.  
*IDN?  
Returns the same response as a standard ac source, except for the firmware revision number.  
*OPT?  
Returns 20, except that the Agilent 6813B 2000 VA model returns 22.  
SYSTem:CONFigure <NORMal | IEC >  
All Option 020 capabilities are only available in NORMal mode.  
SYSTem:LANGuage <SCPI | E9012>  
All Option 020 capabilities are only available in SCPI mode.  
15  
 
Programming Example  
UPS Transfer Time Measurement  
The following programming example illustrates how to use the ac source with the Dual Power Analyzer  
Option 020/022 to measure transfer time on a UPS. Transfer time is defined as the time it takes a UPS to  
go from online-operation to battery-backup operation when the ac line fails.  
This example starts with the ac source output voltage (UPS input voltage) at 120 Vac. The UPS output  
voltage is connected to a load and to the Power Analyzer input. The ac source output turns on at 120 Vac,  
then does a 50 ms dropout to 0 volts. Both the dropout and measurements are triggered at the same time.  
The FETC:TVOLT:ABS? command is then used to return the transfer time, here defined as the time  
between the start of the dropout and the time when the absolute value of the UPS output voltage exceeds  
50 volts for at least 0.001 seconds.  
100 ASSIGN @Ps TO 705  
110 !  
! AC SOURCE IS AT ADDRESS 5, INTERFACE 700  
120 !  
130 OUTPUT @Ps;"*RST"  
140 OUTPUT @Ps;"VOLT 120" ! SET INITIAL INPUT VOLTAGE FOR UPS TO 120 VAC  
150 OUTPUT @Ps;"OUTP ON" ! TURNS AC SOURCE OUTPUT ON AT 120 VAC  
160 WAIT 2  
170 !  
180 !  
190 OUTPUT @Ps;"VOLT:MODE PULS" ! SET UP PULSE MODE FOR AC SOURCE OUTPUT  
200 OUTPUT @Ps;"PULS:WIDT 0.05" ! SET PULSE WIDTH TO 50 MILLISECONDS  
210 OUTPUT @Ps;"VOLT:TRIG 0"  
220 !  
230 !  
240 OUTPUT @Ps;"TRIG:SYNC:SOUR PHAS" ! SETS DROPOUT SYNCHRONIZATION TO PHASE  
250 OUTPUT @Ps;"TRIG:SYNC:PHAS 90" ! SETS DROPOUT START PHASE TO 90 DEGREES  
260 OUTPUT @Ps;"TRIG:SOUR BUS"  
! BEGIN FROM A KNOWN STARTING POINT WITH RESET  
! MAKE SURE UPS OUTPUT HAS TIME TO SETTLE  
! SET PULSED (TRIGGERED) VALUE TO 0 VOLTS  
! SETS DROPOUT TRIGGER AND MEASUREMENT  
! TRIGGER SOURCE TO BUS TRIGGER  
270  
280 !  
290 !  
300 OUTPUT @Ps;"OUTP:TTLT:SOUR BOT" ! SETS SIGNAL TRIGGER SOURCE TO BEGINNING  
310  
! OF TRANSIENT (BOT)  
320 OUTPUT @Ps;"OUTP:TTLT:STAT ON" ! ENABLES TRIGGER OUTPUT SIGNAL  
330 OUTPUT @Ps;"TRIG:ACQ:SOUR TTLT" ! SETS MEASUREMENT TRIGGER SOURCE TO  
340  
350 !  
360 !  
! TRIGGER OUTPUT SIGNAL  
370 OUTPUT @Ps;"INIT:IMM:SEQ1" ! ARMS THE PULSED DROPOUT TO WAIT FOR TRIGGER  
380 OUTPUT @Ps;"INIT:IMM:SEQ3" ! ARMS MEASUREMENT PROCESS TO WAIT FOR TRIGGER  
390 OUTPUT @Ps;"TRIG:IMM"  
400  
! TRIGGERS PULSED VOLTAGE DROPOUT TO 0 VOLTS  
! AND STARTS THE MEASUREMENT PROCESS  
410 OUTPUT @Ps;"SENS:NSEL 2" ! SELECTS POWER ANALYZER INPUT FOR MEASUREMENTS  
420 OUTPUT @Ps;"FETC:TVOLT:ABS? 50, 0, .001"  
! FETCHES TRANSFER TIME  
! RETURNS THE TRANSFER TIME MEASUREMENT  
! PRINTS THE TRANSFER TIME MEASUREMENT  
430 ENTER @Ps;A  
440 PRINT A  
450 END  
16  
 
Using the Power Analyzer Input with the GUI  
The Agilent AC Source Graphical User Interface (GUI) is an easy to use soft front panel for the Agilent  
6800-series AC Power Source/Analyzers. It is supplied with your ac source. With it, you can also control  
the Power Analyzer input on the back of the unit.  
Instructions to install and run the Graphical User Interface are provided in the Quick Start Guide that  
accompanies the software. Briefly:  
1. Place Disk #1 in the A: drive of your computer and run SETUP.EXE.  
2. Follow the directions on the screen to install the software.  
3. To run the Agilent AC Source GUI, click on its desktop icon:  
You can also click on the Start button and select:  
Programs | Agilent AC Source | AC Source GUI.  
The Agilent AC Source Graphical User Interface software recognizes if your ac source includes Option  
020/022, and automatically activates the controls for these options when the software is installed.  
Making a Measurement  
First, you must select the type of waveform to display and then make the measurement.  
ñ
ñ
Click on the Config button and then selecting the Config Waveform Display tab.  
Select the type of waveform to display from the Ext Power Analyzer dropdown box. Selections  
include voltage, current, voltage+current, or harmonic display functions.  
ñ
For the Main Output, select from voltage, current, voltage+current, or harmonic display functions. If  
you only want one measurement window to appear, select None in the drop-down box of the  
measurement window that you do not want to appear.  
ñ
ñ
Click OK to return to the Main window.  
Click on the Measure button to make a single measurement.  
17  
 
If you have both the Main Output and the Power Analyzer input displayed, the Main window should  
display both waveforms, as illustrated in the following screen shot.  
Making a Voltage Phase Difference Measurement  
The voltage phase difference measures the phase difference between the output of the ac source and the  
output of a UPS after ac power is restored following an ac line dropout. This measurement requires that  
the output of the UPS be connected to the Power Analyzer input. Also, you must have already measured  
and displayed both the ac source output and the UPS output waveforms in the Main window.  
To access the Voltage Phase Difference measurement, go to the Tests menu and select the Voltage  
Phase Difference command.  
18  
 
In the dialog box that appears on the screen, enter values for the indicated parameters. The test uses these  
parameters to make the measurement. For a detailed explanation of the Voltage Phase Difference  
parameters refer to the online help by pressing the F1 key.  
When you are ready to make the measurement, press Measure.  
Performing a Transfer Time Test  
The transfer time test measures the time it takes the UPS to go from online-operation to battery backup  
operation when the ac line fails.  
To access the Transfer Time Test, go to the Tests menu and select the Transfer Time Test command.  
In the dialog box that appears on the screen, enter values for the indicated parameters. The test uses these  
parameters to run the test. For a detailed explanation of the Transfer Time test parameters refer to the  
online help by pressing the F1 key.  
When you are ready to run the test, press Run Test.  
Modulating the Output Frequency  
AC sources equipped with Option 020/022 have the capability to modulate the output frequency.  
To access the Frequency Modulation dialog box, go to the Source menu and select the Frequency  
Modulation command.  
In the dialog box that appears on the screen, enter values for the indicated parameters. For a detailed  
explanation of the Output Frequency parameters, refer to the online help by pressing the F1 key.  
When you are finished, press Close. If FM has been enabled, the output frequency of the ac source starts  
modulating immediately.  
19  
 
Power Analyzer Input Specifications  
Table A-1 lists the specifications of the Agilent Dual Power Analyzer Option 020/022. Performance  
o
specifications are warranted over the ambient temperature range of 0 to 40 C. Unless otherwise noted,  
specifications are for a sinewave with a resistive load at a frequency range of 45 Hz to 1 kHz, with the  
Agilent supplied current shunt, after a 30-minute warmup.  
Table A-1. Performance Specifications  
Measurement Accuracy  
(@25 C ±5 C), ± (% of output + offset)  
0.03% + 100 mV  
0.1% + 100 mV  
0.2% + 100 mV  
rms Voltage (45100 Hz):  
(>100500 Hz):  
o
o
(>500 Hz1 kHz):  
dc Voltage:  
0.03% + 150 mV  
rms Current High Range  
(45100 Hz):  
0.05% + 10 mA  
0.05% + 15 mA  
0.05% + 30 mA  
(>100500 Hz):  
(>500 Hz1 kHz):  
rms Current Low Range  
(45100 Hz):  
0.05% + 1.5 mA  
0.05% + 8 mA  
0.05% + 25 mA  
(>100500 Hz):  
(>500 Hz1 kHz):  
repetitive pk current High Range  
(45 Hz1 kHz):  
0.05% + 150 mA  
0.03% + 150 mA  
repetitive pk current Low Range  
(45 Hz1 kHz):  
Power (VA) Low Range  
0.1% + 1.5 VA + 1.2 mVA/V  
0.1% + 2 VA + 1.2 mVA/V  
0.1% + 6 VA + 1.2 mVA/V  
(45100 Hz):  
(>100500 Hz):  
(>500 Hz-1 kHz):  
Power (VA) High Range  
0.1% + 1.5 VA + 12 mVA/V  
0.1% + 2 VA + 12 mVA/V  
0.1% + 6 VA + 12 mVA/V  
(45100 Hz):  
(>100500 Hz):  
(>500 Hz1 kHz):  
Power (Watts) Low Range  
(45100 Hz):  
0.1% + 0.3 W + 1.2 mW/V  
0.1% + 1.2 W + 1.2 mW/V  
0.1% + 2.5 W + 1.2 mW/V  
(>100500 Hz):  
(>500 Hz1 kHz):  
Power (Watts) High Range  
(45100 Hz):  
0.1% + 0.3 W + 12 mW/V  
0.1% + 1.2 W + 12 mW/V  
0.1% + 2.5 W + 12 mW/V  
(>100500 Hz):  
(>500 Hz1 kHz):  
Power Factor:  
0.01  
Harmonic Measurement Accuracy  
(50/60 Hz, @25 C ±5 C),  
± (% of output + offset)  
Voltage Magnitude:  
Current Magnitude (Low Range)  
Fundamental:  
0.03% + 100 mV + 0.2%/kHz  
o
o
0.03% + 1.5 mA  
0.03% + 1 mA + 0.2%/kHz  
Harmonics 249:  
Current Magnitude (High Range)  
Fundamental:  
0.05% + 5 mA  
0.05% + 3 mA + 0.2%/kHz  
Harmonics 249:  
20  
 
Table A-2. Supplemental Characteristics  
Isolation to Ground:  
Measurement Ranges  
300 Vrms/425 Vdc  
AC Voltage:  
DC Voltage:  
Current:  
0300 Vrms  
± 425 V  
± 80 A peak (high range)  
± 8 A peak (low range)  
13 A rms max. continuous  
Average Measurement Resolution  
rms Voltage:  
rms Current:  
10 mV  
2 mA  
5% of reading + 0.1%  
THD (for a fundamental amplitude 5% of full scale):  
Measurement System  
Measurement Source Synchronization:  
Measurement Buffer Length:  
< 100 ns  
4096 points  
50 µs  
25250 µs  
12 bits  
Measurement/Generation Synchronization:  
Measurement Acquisition Sampling Rate Range:  
Voltage/Current Digitization Accuracy:  
Voltage/Current Digitization Resolution:  
Harmonic Measurement Time (amplitude):  
16 bts  
Meas:Curr:Harm? <n>  
Meas:Array:Curr:Harm?  
400 ms  
10 s  
21  
 
Verification and Calibration for Option 020/022  
This section includes verification and calibration procedures for the Agilent Dual Power Analyzer Option  
020/022. Add these procedures to those described in Appendix B of the AC Source Users Guide.  
The verification procedures do not check all the operating parameters, but verify that the ac source is  
performing properly. Performance Tests, which check all the specifications of the ac source, are given in  
the applicable ac source Service Manual.  
Because the output of the ac source must be enabled during verification or calibration, proceed with  
caution, since voltages and currents will be active at the output terminals.  
Important  
Perform the verification procedures before calibrating your ac source. If the ac source  
passes the verification procedures, the unit is operating within its calibration limits and  
does not need to be re-calibrated.  
WARNING LETHAL VOLTAGES. Ac sources can supply 424 V peak at their output. DEATH  
on contact may result if the output terminals or circuits connected to the output are  
touched when power is applied. These procedures must be performed by a qualified  
electronics technician or engineer trained on this equipment.  
Equipment Required  
The equipment listed in the following table, or the equivalent to this equipment, is required for  
verification and calibration.  
Table B-1. Equipment Required  
Equipment  
Characteristics  
Recommended Model  
0360-2681  
5-pin connector plug  
This connector is supplied with the ac source  
when ordered with Option 020/022.  
Digital Voltmeter  
Resolution: 10 nV @ 1 V  
Readout: 8.5 digits  
Agilent 3458A  
Accuracy: >20 ppm  
Current Monitor1  
Load Resistor  
Guildline 7320/0.01  
0.01 , ±200 ppm,  
30 ohm, 100 Watts minimum  
1.0 µF, 50 V  
Capacitor  
(calibration only)  
0160-3490  
Function Generator  
50 mV, 500 mV, 60 Hz sinewave capability  
Agilent 33120A  
(calibration only)  
GPIB Controller  
Full GPIB capabilities  
HP Series 200/300 or equivalent  
1The 4- terminal current shunt is used to eliminate output current measurement error caused by voltage  
drops in the load leads and connections. Connect the voltmeter directly to these current-monitoring  
terminals.  
22  
 
Verification Procedure  
The following verification procedures assume you understand how to operate the ac source from the front  
panel as explained in chapter 4.  
Perform the following tests for operation verification in the order indicated.  
1. Turn-On Checkout  
2. Voltage Measurement Accuracy  
3. Current Measurement Accuracy  
NOTE:  
The ac source must pass turn-on selftest before you can proceed with the verification.  
Test Set up  
Agilent 6811B/6812B/6813B  
LO HI  
|
LO HI  
I
V
SENSE  
SENSE  
POWER ANALYZER  
HI  
MAIN OUTPUT  
SENSE  
Agilent 3458A  
DMM  
COM COM  
01  
01  
LO  
RL  
Rs  
RL= Load resistor for CC test (30 ohms)  
Rs = Current Monitor resistor (0.01 ohms)  
HI  
Agilent 3458A  
DMM  
LO  
A.  
Agilent 6811B/6812B/6813B  
Agilent 33120A  
LO HI  
|
LO HI  
FUNCTION GENERATOR  
I
V
SENSE  
SENSE  
POWER ANALYZER  
HI  
Agilent 3458A  
DMM  
C1  
MAIN OUTPUT  
SENSE  
LO  
COM COM  
01  
01  
C1 = Capacitor (1.0 uF)  
B.  
Figure B-1. Verification / Calibration Test Setup  
23  
 
Power Analyzer Voltage Measurement Accuracy  
This test verifies the accuracy of the Power Analyzer voltage measurements. The Phase 2 annunciator on  
the left side of the display, must be on for the front panel to display Power Analyzer input measurements.  
Figure B-1A shows the setup. Measure the ac output voltage directly at the output terminals.  
Action  
Normal Result  
1.  
Make sure the ac source is turned off. Connect the DVM to the output  
terminals the ac source. Connect the Power Analyzer voltage sense terminals  
(V SENSE) to the Main Output terminals of the ac source (see figure B-1A).  
2.  
3.  
4.  
Turn on the ac source with no load. In the Output menu, execute the *RST  
command to reset the unit to its factory default state.  
*RST  
φ2 0 V 60 Hz  
If the Phase 2 annunciator does not appear on the right side of the display,  
press the Phase Select key.  
Program the output voltage to 150 volts and set the output current limit to its  
maximum value.  
CV annunciator on.  
5.  
6.  
Output voltage near 150 V.  
Enable the output by pressing Output On/Off.  
Record voltage readings at the DVM and on the front panel display.  
φ2 front panel reading within  
145 mV of DVM reading .  
7.  
8.  
Program the output voltage to 300 volts.  
Output voltage near 300 V.  
Record voltage readings at the DVM and on the front panel display.  
φ2 front panel reading within  
190 mV of DVM reading  
Power Analyzer Current Measurement Accuracy  
This test verifies the accuracy of the Power Analyzer current measurements. The Phase 2 annunciator on  
the left side of the display, must be on for the front panel to display Power Analyzer input measurements.  
Figure B-1A shows the setup. Use the Agilent supplied current shunt. It has the accuracy specified in  
table B-1. Use wire of sufficient size to carry the maximum rated current of the ac source.  
NOTE:  
Check to make sure that the internal shunt value in the ac source matches the value  
written on the external current shunt. Refer to "Check the Shunt Value Setting".  
Action  
Normal Result  
1.  
Turn off the ac source. Connect the 30 ohm load resistor, current shunt,  
and the DVM across the current shunt. Connect the Power Analyzer  
current terminals (I SENSE) to the output of the function generator (see  
figure B-1A).  
2.  
3.  
4.  
5.  
Turn on the ac source. In the Output menu, execute the *RST command to  
reset the unit to its factory default state.  
*RST  
φ2 0 V 60 Hz  
If the Phase 2 annunciator does not appear on the right side of the display,  
press the Phase Select key.  
Program the output voltage to 100 volts and set the current limit to 3  
amperes. Enable the output by pressing Output On/Off.  
CC annunciator on.  
Output current near 3 amperes  
Record the DVM voltage reading and calculate the rms current. Divide the  
DVM reading by the current monitor resistor value. Record the front panel  
reading.  
φ2 front panel reading within  
11.5 mA of measured output  
current.  
24  
 
Calibration Procedure  
Table B-1 lists the equipment required for calibration. Figure B-1 shows the test setup. The following  
procedures assume you understand how to operate front panel keys (see chapter 4).  
WARNING LETHAL VOLTAGES. Ac sources can supply 425 V peak at their output. DEATH  
on contact may result if the output terminals or circuits connected to the output are  
touched when power is applied. These procedures must be performed by a qualified  
electronics technician or engineer trained on this equipment.  
Summary of Front Panel Calibration Menu  
The Entry keypad is used for calibration functions.  
Shift  
Cal  
Press this key to access the calibration menu.  
Display  
CAL ON <value>  
Command Function  
Turns calibration mode on when the correct password  
value is entered.  
CAL OFF  
Turns calibration mode off  
CAL:LEV <char>  
CAL:DATA <value>  
SHUNT <value>  
CAL:VOLT:OFFSET  
CAL:VOLT:DC  
CAL:VOLT:AC  
CAL:VOLT:PROT  
CAL:VOLT:EXT  
CAL:CURR:AC  
CAL:CURR:MEAS  
CAL:CURR:EXT  
CAL:IMP  
Advance to next step in sequence (P1, P2, P3, or P4).  
Input a calibration measurement.  
Enter a value for the external current shunt in ohms.  
Begin voltage offset calibration  
Begin dc voltage calibration sequence  
Begin ac voltage calibration sequence  
Begin voltage protection calibration  
Begin external voltage calibration sequence  
Begin ac current calibration sequence  
Begin current measurement calibration sequence  
Begin external current calibration sequence  
Begin output impedance calibration sequence  
Saves the calibration constants in non-volatile memory.  
Set new calibration password.  
CAL:SAVE  
CAL:PASS <value>  
Enable Calibration Mode  
Action  
Display  
1.  
2.  
*RST  
Reset the unit by selecting Shift, Output, and pressing Enter.  
CAL ON 0.0  
Press Shift Calibration, enter the calibration password from Entry keypad,  
and press Enter. If the password is correct, the Cal annunciator will come on.  
(If no password has been set, just press Enter.)  
OUT OF RANGE  
CAL DENIED  
If the password is incorrect, an error occurs. If the active password is lost, the  
calibration function can be recovered by setting an internal switch that defeats  
password protection (see the Service Manual.)  
If CAL DENIED appears, then an internal switch has been set to prevent the  
calibration from being changed (see the Service Manual.)  
25  
 
Calibrating and Entering Power Analyzer Voltage Calibration Values  
Action  
Display  
4.  
Connect an Agilent 3458A DVM (in synchronous ac volts mode) to the ac source  
output terminals. Short the Power Analyzer voltage terminals (V SENSE) to  
ensure no dc offset error.  
5.  
6.  
CAL:VOLT:EXT  
Press Shift Calibration, scroll to CAL VOLT EXT, and press Enter.  
Leave the ac source on and remove the short from the Power Analyzer voltage  
terminals.  
7.  
8.  
Connect the Power Analyzer voltage sense terminals to the Main Output  
terminals of the ac source (see figure 3-1A).  
CAL:LEV P1  
Press Shift Calibration, scroll to CAL LEV P1 and press Enter.  
The ac source will output 300 Vac 60 Hz sine wave.  
9.  
CAL:DATA 0.00  
CAL SAVE  
Press Shift Calibration, scroll to CAL DATA, and use the Entry keypad to  
enter the voltage value displayed on the Agilent 3458A DVM.  
10.  
Press Shift Calibration, scroll to CAL SAVE and press Enter.  
Calibrating and Entering Power Analyzer Current Calibration Values  
Action  
Display  
11.  
Short the Power Analyzer current sense terminals (I SENSE) to ensure no dc  
offset error.  
12.  
13.  
CAL:CURR:EXT  
Press Shift Calibration, scroll to CAL CURR EXT and press Enter.  
Leave the ac source on and remove the short from the Power Analyzer current  
terminals.  
14  
Connect the Power Analyzer current terminals to the output of the function  
generator (see figure 3-1B). Set the function generator output to 50 mV, 60 Hz.  
15.  
Connect the Power Analyzer current terminals to the Agilent 3458A input  
terminals. Note that the Agilent 3458A must be in synchronous ac volts mode and  
a 1.0 uF capacitor must be installed across the Agilent 3458A input terminals.  
16.  
17.  
CAL LEV P1  
Press Shift Calibration, scroll to CAL LEV P1, and press Enter.  
CAL:DATA 0.00  
Press Shift Calibration and scroll to CAL DATA. Use the Entry keypad to  
enter the voltage value displayed on the Agilent 3458A DVM.  
18  
Change the function generator output setting to 500 mV.  
19.  
CAL:LEV P2  
CAL:DATA 0.00  
CAL SAVE  
Press Shift Calibration, scroll to CAL LEV P1 command, use ° to scroll to  
the P2 parameter, and press Enter.  
20.  
21  
Press Shift Calibration and scroll to the CAL DATA. Use the Entry keypad to  
enter the voltage value displayed on the Agilent 3458A DVM.  
Press Shift Calibration, scroll to CAL SAVE and press Enter  
26  
 

2nd Ave Gas Grill DVD V7200 User Manual
3M Home Theater System X21i X26i X30n X31 X31i X35n X36 X36i User Manual
3M Tablet Accessory 10700 User Manual
Abocom Network Card HL2000 User Manual
Aiphone Intercom System DL 10 User Manual
Aiwa Stereo System NSX D70 User Manual
Alpine Car Stereo System 68 21627Z13 A User Manual
Amana Refrigerator AES5730BA User Manual
AMX Network Card RDM MDM User Manual
Baldor Portable Generator IDLC1600 2M User Manual