The CONFigure commands are the most concise way to configure measurements. Like the MEASure? queries, these commands use default measurement configuration values. However, these commands do not automatically start measurements, so you can modify measurement attributes before initiating the measurement.
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CONFigure:{RESistance|FRESistance}
CONFigure[:VOLTage][:DC]:RATio
The CONFigure commands select the function, range and resolution in one command. Specify <resolution> in the measurement's units (V, A, Hz, Ω, and so on). All other parameters are set to their default values (below).
Measurement Parameter | Default Setting |
---|---|
AC Input Filter (bandwidth) |
20 Hz (medium filter) |
Autozero |
OFF if resolution setting results in NPLC < 1 |
Range |
AUTO (including voltage range for frequency and period measurements) |
Samples per Trigger |
1 sample |
Trigger Count |
1 trigger |
Trigger Delay |
Automatic delay |
Trigger Source |
Immediate |
Trigger Slope |
NEGative |
Math Functions |
Disabled. Other parameters are unchanged. |
Per-function Null State |
Disabled |
The following example uses CONFigure and READ? to make an externally-triggered measurement. CONFigure specifies DC voltage measurements but does not place the instrument in the "wait-for-trigger" state.
READ? places the instrument in the "wait-for-trigger" state, initiates a measurement when the rear-panel Ext Trig input is pulsed (low by default), stores the measurement in reading memory, and transfers the measurement to the instrument's output buffer. The default range (autorange) and resolution (10 PLC) are used for the measurement.
CONF:VOLT:DC
TRIG:SOUR EXT
READ?
Typical Response: +4.27150000E+00
The following example is like the previous one, but it uses INITiate and FETCh? instead of READ?. The INITiate command places the instrument in the "wait-for-trigger" state, triggers a measurement when the rear-panel Ext Trig input is pulsed (low by default), and sends the measurement to reading memory. The FETCh? query transfers the measurement from reading memory to the instrument's output buffer.
CONF:VOLT:DC
TRIG:SOUR EXT
INIT
FETC?
Typical Response: +5.34250000E+00
Storing measurements in reading memory with INITiate is faster than sending measurements to the instrument's output buffer using READ? (provided you do not send FETCh? until done). The INITiate command is also an "overlapped" command. This means that after executing INITiate, you can send other commands that do not affect the measurements. This allows you to check for data availability before initiating a read attempt that might otherwise time out. The FETCh? query waits until all measurements are complete to terminate. You can store up to 1,000 measurements in the reading memory of the 34460A, 10,000 measurements on the 34461A, 50,000 measurements on the 34465A/70A (without the MEM option), or 2,000,000 measurements on the 34465A/70A (with the MEM option).
The following example configures the instrument for 2-wire resistance measurements, triggers the instrument to make one measurement using INITiate, and stores the measurement in reading memory. The 10 kΩ range is selected with 100 Ω resolution.
CONF:RES 10000,100
INIT
FETC?
Typical Response: +5.95850000E+03
Returns a quoted string indicating the present function, range, and resolution. The short form of the function name (CURR:AC, FREQ) is always returned.
Parameter | Typical Return |
---|---|
(none) | "VOLT +1.00000000E+01,+3.00000000E-06" |
Return the present function, range, and resolution: CONF? |
Sets all measurement and trigger parameters to their default values for capacitance measurements. Also specifies the range.
Parameter | Typical Return |
---|---|
<range>: {1 nF|10 nF|100 nF|1 µF|10 µF|100 µF}. Default: AUTO. |
(none) |
<resolution>: optional and ignored; fixed at 4½ digits. |
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Configure capacitance measurements using the 1 µF range. Make and read two measurements: CONF:CAP Typical Response:+3.01574316E-10,+3.01659030E-10 |
Sets all measurement parameters and trigger parameters to their default values for continuity measurements.
Parameter | Typical Return |
---|---|
(none) | +1.32130000E-02 |
Configure the instrument for continuity measurements. Then make a measurement using an external trigger with positive slope (rising edge) and read the measurement: CONF:CONT |
Sets all measurement parameters and trigger parameters to their default values for AC or DC current measurements. Also specifies the range and resolution.
Parameter | Typical Return |
---|---|
<range>: {100 µA|1 mA|10 mA|100 mA|1 A|3 A|10 A}. Default: AUTO (autorange). |
(none) |
<resolution> (AC): optional and ignored; fixed at 6½ digits. <resolution> (DC): See Resolution Table or Range, Resolution and NPLC. The default is equivalent to 10 PLC. Specify <resolution> in the measurement's units (V, A, Hz, Ω, and so on). |
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Configure AC current measurements using the 1 A range. Make and read two measurements: CONF:CURR:AC 1 Typical Response: +8.54530000E-01,+8.54520000E-01 Configure DC current measurements using the 1 A range with 1 mA resolution. Then make a measurement using an external trigger with positive slope (rising edge) and read the measurement: CONF:CURR:DC 1,0.001 Typical Response: +4.27150000E-01 |
Sets all measurement parameters and trigger parameters to their default values for diode tests.
Parameter | Typical Return |
---|---|
(none) | (none) |
Configure, make, and read a default diode measurement: CONF:DIOD Typical Response: +1.32130000E-01 |
Sets all measurement and trigger parameters to their default values for frequency or period measurements. Also specifies the frequency or period range and resolution.
Parameter | Typical Return |
---|---|
<range>: 3 Hz to 300 kHz. Default: 20 Hz. (FREQuency) <range>: 3.33 µs to 333.33 ms. Default: 50 ms (PERiod). |
(none) |
<resolution>: See table below. |
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Configure frequency measurements using the default aperture and the 200 Hz (fast) AC filter. Then make and read one measurement: CONF:FREQ Typical Response: +1.32130000E+03 |
Resolution (34460A/61A) | Resolution (34465A/70A) | Aperture |
---|---|---|
Not Applicable | 100 ppm × <range> (MAXimum) | 1 ms |
100 ppm × <range> (MAXimum) | 10 ppm × <range> (DEFault) | 10 ms |
10 ppm × <range> (DEFault) | 1 ppm × <range> | 100 ms |
1 ppm × <range> (MINimum) | 0.1 ppm × <range> (MINimum) | 1 s |
Sets all measurement parameters and trigger parameters to their default values for 4-wire (FRESistance) or 2-wire (RESistance) resistance measurements. Also specifies the range and resolution.
Parameter | Typical Return |
---|---|
<range>: 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ, 1 GΩ, AUTO,or DEFault. Default: AUTO. |
+8.54530000E+01 |
<resolution>: See Resolution Table or Range, Resolution and NPLC. The default is equivalent to 10 PLC. Specify <resolution> in the measurement's units (V, A, Hz, Ω, and so on). |
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Configure 4-wire resistance measurements using the 100 Ω range with default resolution. Make and read two measurements: CONF:FRES 100 Typical Response: +8.54530000E+01,+8.54520000E+01 |
Sets all measurement parameters and trigger parameters to their default values for temperature measurements. Also specifies the transducer and the measurement resolution.
Parameter | Typical Return |
---|---|
<probe_type>: {FRTD|RTD|FTHermistor|THERmistor|TCouple}. Default: FRTD. | +2.12320000E+01 |
<type>: 85 (only possible value for RTD/FRTD), 5000 (only possible value for THERmistor/FTHermistor), or E, J, K, N, R, T (TCouple). | |
<resolution>: See Resolution Table or Range, Resolution and NPLC. The default is equivalent to 10 PLC. | |
Configure a 4-wire RTD measurement. Then make a measurement using an external trigger with positive slope (rising edge) and read the measurement: CONF:TEMP FRTD,85 |
Sets all measurement parameters and trigger parameters to their default values for AC or DC voltage measurements. Also specifies the range and resolution.
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The maximum range parameter (MAX) is 1000 V. However, the SAFETY LIMIT on the front and rear HI/LO input terminals is 750 VAC (rms). The rms voltage is waveform dependent. A sine wave is limited to 750 VAC (rms), but a 1000 Vpk square wave is safe. Connection to AC mains power is further limited to CAT II (300 V). See Safety and Regulatory Information for more information on the safety features and the safe operation of this instrument. |
Parameter | Typical Return |
---|---|
<range>: {100 mV|1 V|10 V|100 V|1000 V}. Default: AUTO (autorange). | (none) |
<resolution> (AC): optional and ignored; fixed at 6½ digits. <resolution> (DC): See Resolution Table or Range, Resolution and NPLC. The default is equivalent to 10 PLC. Specify <resolution> in the measurement's units (V, A, Hz, Ω, and so on). |
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Configure AC voltage measurements using the 100 V range. Make and read two measurements: CONF:VOLT:AC 100 Typical Response: +8.54530000E+01,+8.54520000E+01 Configure DC voltage measurements using the 10 V range with 1 mV resolution. Then make a measurement using an external trigger with positive slope (rising edge) and read the measurement: CONF:VOLT:DC 10,0.001 Typical Response: +4.27150000E+00 |
Sets all measurement and trigger parameters to their default values for DC voltage to DC voltage ratio measurements. Also specifies the range and resolution.
To calculate a ratio, the instrument measures a DC reference voltage applied to the Sense terminal and the DC signal voltage applied to the Input terminals. It then uses the formula:
Ratio = DC signal voltage / DC reference voltage
Parameter | Typical Return |
---|---|
<range>: {100 mV|1 V|10 V|100 V|1000 V}. Default: AUTO (autorange). |
(none) |
<resolution>: See Resolution Table or Range, Resolution and NPLC. The default is equivalent to 10 PLC. | |
Configure the instrument for DC voltage ratio measurements using the 100 V range with 1 mV resolution. Then make a measurement using an external trigger with positive slope (rising edge) and read the measurement: CONF:VOLT:DC:RAT 100,0.001 Typical Response: +4.27150000E+00 |