IEEE-488 Reference
4-153
Short-form formats: :freq:thr:curr:rang?
:freq:thr:curr:rang? xxx
:freq:thr:volt:rang?
:freq:thr:volt:rang? xxx
where; xxx = def, min or max
Response message: 0.001 (1mA) 1 (1V)
0.01 (10mA) 10 (10V)
0.1 (100mA) 100 (100V)
1 (1A) 1000 (1000V)
Description These commands are used to specify the expected input level. The instrument will then automat-
ically select the most sensitive current or voltage threshold range. For example, if you specify
the expected input current to be 20mA, the instrument will automatically select the 100mA cur-
rent threshold range.
Programming example 10 OUTPUT 716; “:freq:thr:curr:rang 150e-3; rang?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Specifies the the expected input signal to be 150mA and then queries the current
threshold range.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the current threshold range (1).
:LEVel <n>
[:SENSe[1]]:FREQuency:THReshold:CURRent:LEVel <n> Set current threshold level
[:SENSe[1]]:FREQuency:THReshold:VOLTage:LEVel <n> Set voltage threshold level
Parameters Current Threshold:
<n> = -0.0006 to +0.0006 Trigger level for 1mA range
= -0.006 to +0.006 Trigger level for 10mA range
= -0.06 to +0.06 Trigger level for 100mA range
= -0.6 to +0.6 Trigger level for 1A range
= DEFault 0A trigger level
= MINimum Range dependent as shown above
= MAXimum Range dependent as shown above
Voltage Threshold:
<n> = -0.6 to +0.6 Trigger level for 1V range
= -6 to +6 Trigger level for 10V range
= -60 to +60 Trigger level for 100V range
= -600 to +600 Trigger level for 1000V range
= DEFault 0V trigger level
= MINimum Range dependent as shown above
= MAXimum Range dependent as shown above
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