Keithley2400#
Controls a Keithley 2400 series SourceMeter (2400, 2410, 2420, 2425, 2430) from Python. This class inherits from MeasmaticDevice.
property is_output_on#
Queries the output state.
Returns#
| Type | Description |
|---|---|
| bool | True if the output is on, otherwise False . |
Example#
smu = measmatic.get_device('device-keithley-2400')
state = smu.is_output_on
property max_current_in_max_voltage_range#
The largest programmable current in the largest voltage range. The value depends on the model.
Returns#
| Type | Description |
|---|---|
| float | The largest programmable current in amperes. |
Example#
smu = measmatic.get_device('device-keithley-2400')
current = smu.max_current_in_max_voltage_range
property max_voltage#
The largest programmable voltage. The value depends on the model.
Returns#
| Type | Description |
|---|---|
| float | The largest programmable voltage in volts. |
Example#
smu = measmatic.get_device('device-keithley-2400')
voltage = smu.max_voltage
method check_voltage_and_current(voltage: float, current: float, pulseMode: bool)#
Checks whether the voltage and current settings are valid. The Keithley 2400 performs no check.
Parameters#
| Name | Description |
|---|---|
| voltage | The voltage setting in volts to be checked. |
| current | The current setting in amperes to be checked. |
| pulseMode | Set this parameter to True if the settings shall be checked for pulse mode. |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.check_voltage_and_current(5.0, 10E-3, False)
method get_current_bias()#
Queries the programmed current bias.
Returns#
| Type | Description |
|---|---|
| float | Programmed current bias in amperes. |
Example#
smu = measmatic.get_device('device-keithley-2400')
current = smu.get_current_bias()
method get_max_current(voltageRange: float)#
Queries the largest current for a specific voltage range. The value depends on the model.
Parameters#
| Name | Description |
|---|---|
| voltageRange | The voltage range in volts for which the current is queried. |
Returns#
| Type | Description |
|---|---|
| float | The largest current in amperes for the voltage range. |
Example#
smu = measmatic.get_device('device-keithley-2400')
current = smu.get_max_current(20.0)
method get_voltage_bias()#
Queries the programmed voltage bias.
Returns#
| Type | Description |
|---|---|
| float | Programmed voltage bias in volts. |
Example#
smu = measmatic.get_device('device-keithley-2400')
voltage = smu.get_voltage_bias()
method measure_current()#
Measures the output current. The output has to be on.
Returns#
| Type | Description |
|---|---|
| float | Measured current in amperes. |
Example#
smu = measmatic.get_device('device-keithley-2400')
current = smu.measure_current()
method measure_iv()#
Measures the output current and voltage simultaneously. The output has to be on.
Returns#
| Type | Description |
|---|---|
| float | Measured current in amperes. |
| float | Measured voltage in volts. |
Example#
smu = measmatic.get_device('device-keithley-2400')
current, voltage = smu.measure_iv()
method measure_voltage()#
Measures the output voltage. The output has to be on.
Returns#
| Type | Description |
|---|---|
| float | Measured voltage in volts. |
Example#
smu = measmatic.get_device('device-keithley-2400')
voltage = smu.measure_voltage()
method output_off()#
Turns the SMU output off.
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.output_off()
method output_on()#
Turns the SMU output on.
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.output_on()
method remote_sense(isEnabled: bool)#
Sets sensing to local or remote.
Parameters#
| Name | Description |
|---|---|
| isEnabled | True means remote sense (4 wire), False means local sense (2 wire). |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.remote_sense(True)
method reset()#
Sets all settings of the device back to the initial state.
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.reset()
method reset_output()#
Turns the output off and programs 0 V with a current compliance of 1 mA.
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.reset_output()
method set_current(current: float, voltageCompliance: float)#
Sets the output mode to current and the sense range to auto.
Parameters#
| Name | Description |
|---|---|
| current | The new output current in amperes. |
| voltageCompliance | The new voltage limit in volts. |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_current(10E-3, 5.0)
method set_current_fixed_sense_range(current: float, voltageCompliance: float)#
Sets the output mode to current with a fixed sense range.
Parameters#
| Name | Description |
|---|---|
| current | The new output current in amperes. |
| voltageCompliance | The new voltage limit in volts. |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_current_fixed_sense_range(10E-3, 5.0)
method set_front_terminal()#
Selects the front panel terminals for the output.
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_front_terminal()
method set_nplc(nplc: float)#
Sets the integration time of the measurements in power line cycles (PLC). Values below 0.01 are set to 0.01, values above 10 raise an error.
Parameters#
| Name | Description |
|---|---|
| nplc | The integration time in power line cycles (0.01 to 10). |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_nplc(1.0)
method set_rear_terminal()#
Selects the rear panel terminals for the output.
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_rear_terminal()
method set_voltage(voltage: float, currentCompliance: float)#
Sets the output mode to voltage and the sense range to auto.
Parameters#
| Name | Description |
|---|---|
| voltage | The new output voltage in volts. |
| currentCompliance | The new current limit in amperes. |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_voltage(5.0, 10E-3)
method set_voltage_fixed_sense_range(voltage: float, currentCompliance: float)#
Sets the output mode to voltage with a fixed sense range.
Parameters#
| Name | Description |
|---|---|
| voltage | The new output voltage in volts. |
| currentCompliance | The new current limit in amperes. |
Example#
smu = measmatic.get_device('device-keithley-2400')
smu.set_voltage_fixed_sense_range(5.0, 10E-3)