User manual

Section 13: Instrument Control Library (ICL) Series 3700 System Switch/Multimeter Reference Manual
13-156 3700S-901-01 Rev. C / July 2008
dmm.opendetector
Attribute
Indicates the state of the temperature or 4-wire ohms open lead detector being used.
Usage
To read the open lead detector state:
value = dmm.opendetector
value: Represents the present open detector state
To write the open lead detector state:
dmm.opendetector = value
value: Represents the desired open detector state. Set to one of the following:
dmm.ON or 1 to enable the open lead detector
dmm.OFF or 0 to disable the open lead detector
Remarks
This attribute is valid when dmm.func = "temperature". It also is valid when dmm.func
= "fourwireohms". All other configurations generate an error and return nil when
queried (including "twowireohms"). When on temperature, the open detector setting is
only used when the transducer type is thermocouple. For all other transducer types, it
is ignored.
Changing functions with dmm.func (on page 13-137) will reflect the open detector
setting for that function.
The factory default and dmm.reset() (on page 13-161) function value is dmm.OFF.
Example
To enable the thermocouple open detector:
dmm.func = "temperature"
dmm.transducer = dmm.TEMP_THERMOCOUPLE
dmm.opendetector = dmm.ON
dmm.range
Attribute
Indicates the range of DMM for the selected function.
Usage
To read the range for the selected function:
value = dmm.range
value: Represents the present range for the selected function.
To write the range for the selected function:
dmm.range = value
value: Represents the expected measurement value or desired range for the selected
function.