6240B DC Voltage Current Source/Monitor Operation Manual
5.2.6 Measurement Function
5-38
Connecting 2 V causes the measurement auto range to set the measurement range to the 3 V
range. Then the voltage limiter is also changed to the 3 V range. Therefore, the internal value
3.219 V is set.
3. Increase the external power supply to 10 V.
In this case, the external voltage exceeds the HI limit value.
Thus, before increasing the range, the auto measurement function detects voltage overload and
sets the output status to Standby.
The operation above is unavoidable in principle.
For using the 6240B under the above condition, do not use the measurement auto range.
NOTE:
1.
In the current source function, apply an external VB voltage within the voltage limiter range.
LO limit value < VB < HI limit value
If the voltage exceeds the limiter range, an overload (OVL) is detected and the output status is set to
Standby.
2.
For measuring an external voltage, set the measurement range to fixed range.
When the external voltage is measured with the auto range, change in the external voltage sets overload
(OVL).
6240B
+3.219 V
3 V range
VM
-3.219 V
10 V
LO limiter
HI limiter
