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3-36
e.
FREQuency:APERture <NRf> [, <clist>]
PERiod:APERture <NRf> [, <clist>]
The rate annunciators indicate the following aperture settings:
SLOW = 1 sec
MED = 0.1 sec
FAST = 0.01 sec
For all other aperture times, the rate annunciators are turned off.
f.
UNIT:TEMPerature <name>
To set temperature measurement units to °C, use the C or CEL parameter. For
°F, use the F or FAR parameter. For Kelvin, use the K parameter.
g.
Trigger and retrieve readings:
klqb
Detailed information on the processes to trigger and retrieve read-
ings is provided in
INITiate:CONTinuous <b>
INITiate [:IMMediate]
With continuous initiation disabled (INITiate:CONTinuous OFF), you can use
the INITiate command to trigger one or more measurements.
klqb
Note that sending INITiate while the instrument is performing
measurements will cause error -213 (init ignored).
[SENSe [1]] DATA[:LATest]?
[SENSe [1]]DATA:FRESh?
These commands do not trigger a reading. They simply return the last reading
string. The reading reflects what is applied to the input.
While the instrument is performing measurements, you can use these com-
mands to return the last reading. If the instrument is not performing measure-
ments, DATA[:LATest]? will keep returning the same reading string.
DATA:FRESh? can only be used once to return the same reading string. That
is, the reading must be "fresh." Sending this command again to retrieve the
same reading string will generate error -230 (data corrupt or stale) or cause the
GPIB to time-out. In order to again use DATA:FRESh?, a new (fresh) reading
must be triggered.
Model 2790 SourceMeter
Section
8,
Section
®
Swich System Reference Manual
13, and Appendix C.
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