Keithley 3700 series Reference Manual page 266

Section 9: Instrument Control Library (ICL)
dmm.units
Attribute
Usage
Remarks
Example
9-122
Indicates the units for voltage and temperature measurements.
To read the units:
value = dmm.units
value: Represents the present units.
To write the units:
dmm.units = value
value: Represents the desired units.
For value, use one of the following:

dmm.UNITS_VOLTS or 0

dmm.UNITS_DECIBELS or 1

dmm.UNITS_CELSIUS or 2

dmm.UNITS_KELVIN or 3

dmm.UNITS_FAHRENHEIT or 4
This attribute is only valid when dmm.func is equal to:

―dcvolts‖

―acvolts‖

―temperature‖.
All other configurations generate an error and return nil when queried. Errors will also
be generated if the parameter value does not make sense for selected function.
The settings of dmm.UNITS_VOLTS and dmm.UNITS_DECIBELS apply when
dmm.func = ―dcvolts‖ or ―acvolts‖. Likewise, settings of dmm.UNITS_FAHRENHEIT ,
dmm.UNITS_CELSIUS, and dmm.UNITS_KELVIN apply when dmm.func =
―temperature‖.
Changing functions with
The factory default and dmm.reset function value is dmm.UNITS_VOLTS.
The factory default for ―temperature‖ is dmm.UNITS_CELSIUS.
To set units for temperature measurements to Fahrenheit (°F):
dmm.func = "temperature"
dmm.units = dmm.UNITS_FAHRENHEIT
Series 3700 System Switch/Multimeter Reference Manual
dmm.func (on page 9-91) has no effect on this setting.
Document Number: 3700S-901-01 Rev. A / August 2007