Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2461-901-01 A/November 2015 8-189
Details
Overvoltage protection restricts the maximum voltage level that the instrument can source. It is in
effect when either current or voltage is sourced.
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 (2 V), never touch anything
connected to the terminals of the Model 2461 when the output is on. Always assume that a
hazardous voltage (greater than 30 V
RMS
) is present when the output 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
Overvoltage protection (on page 2-121)
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
Overvoltage protection (on page 2-121)
smu.source.protect.level (on page 8-188)

Keithley 2461 Specifications

General

Brand	Keithley
Model	2461
Category	Measuring Instruments
Language	English