2470 High Voltage SourceMeter Instrument Reference Manual
Section 14: TSP command reference
2470-901-01 Rev. A /
May
2019
14-165
This protection is in effect for both positive and negative output voltages.
When this attribute is used in a test sequence, it should be set before turning the source on.
Even with the overvoltage protection set to the lowest value (20 V), never touch anything
connected to the terminals of the 2470 when the
instrument
is on. Always assume that a
hazardous voltage (greater than 30 V
RMS
) is present when the
instrument
is on. To prevent
damage to the device under test or external circuitry, do not set the voltage source to levels
that exceed the value that is set for overvoltage protection.
Example
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.protect.level = smu.PROTECT_40V
Sets the maximum voltage limit of the
instrument to 40 V.
Also see
(on page 4-34)
smu.source.protect.tripped
This attribute indicates if the overvoltage source protection feature is active.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (R)
Yes
Not applicable
Not applicable
Not applicable
Usage
value
= smu.source.protect.tripped
value
Overvoltage protection not active:
smu.OFF
Overvoltage protection active:
smu.ON
Details
When overvoltage protection is active, the instrument restricts the maximum voltage level that the
instrument can source.
Example
print(smu.source.protect.tripped)
If overvoltage protection is active, the output
is:
smu.ON
Also see
(on page 4-34)
