User`s manual

READ? !Place multimeter in wait-for-trigger state and
make measurements; send readings to output
buffer.
enter statement !Enter readings into computer.
:SOURce?
SAMPle:SOURce? returns "IMM" or "TIM" to show the present pacing source.
The quoted string is sent to the output buffer.
Example Querying the Pacing Source
SAMP:SOUR TIM !Sample source is SAMPle:TIMer command.
SAMP:SOUR? !Query multimeter to return pacing source
setting.
enter statement !Enter string into computer.
:TIMer
SAMPle:TIMer <period> defines the period between readings in a burst
(stand-alone multimeter) or defines the period between FET multiplexer channels in
the scan list (scanning multimeter).
Parameters
Parameter Name Parameter Type Range of Values Default Units
<period>
numeric
76 µs - 65.534 ms | MIN | MAX
seconds
Comments
•
MIN
sets the time to 76 µs. MAX sets the time to 65.534 ms.
• When using SAMP:TIM, the first measurement occurs without the specified
period. However, you can insert a time interval before the first measurement
using the
TRIGger:DELay command.
• To achieve specific sample periods, the aperture time must be set accordingly (see
the
[SENSe:] subsystem). The following table shows the minimum sample period
for each available aperture time setting. The aperture times and sample periods
shown assume a fixed range and autozero off. Reading rates are for the DC
voltage function with readings stored mainframe/command module memory.
Aperture Time Minimum Sample Period
(SAMPle:TIMer)
Maximum Reading Rate
(Readings/second)
10 µs 76 µs
13,150
100 µs
0.32 ms 3,000
2.5 ms 2.8 ms 350
16.7 ms 16.9 ms 58
20 ms 20.3 ms 49
267 ms IMM 2
320 ms IMM 1.9
• The sample period must be longer than the specified aperture time.
159 Command Reference Chapter 5