Keithley DMM7510 Reference Manual

Model DMM7510
7½ Digit Graphical Sampling Multimeter Reference Manual Section 8: T
SP command reference
DMM7510-901-01 Rev. B / May 2015 8-149
dmm.measure.drycircuit
This attribute enables or disables the dry circuit feature of the 4-wire resistance measure function.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
dmm.OFF
Usage
state = dmm.measure.drycircuit
dmm.measure.drycircuit = state
state
To disable dry circuit, select
dmm.OFF
; available for all ranges
To enable dry circuit, select dmm.ON; available for the 1 Ω to 10 kΩ ranges
Functions
dmm.FUNC_DC_VOLTAGE
dmm.FUNC_RESISTANCE
dmm.FUNC_ACV_FREQUENCY
dmm.FUNC_AC_VOLTAGE
dmm.FUNC_4W_RESISTANCE
dmm.FUNC_ACV_PERIOD
dmm.FUNC_DC_CURRENT
dmm.FUNC_DIODE
dmm.FUNC_DCV_RATIO
dmm.FUNC_AC_CURRENT
dmm.FUNC_CAPACITANCE
dmm.FUNC_DIGITIZE_CURRENT
dmm.FUNC_TEMPERATURE
dmm.FUNC_CONTINUITY
dmm.FUNC_DIGITIZE_VOLTAGE
Details
Enabling dry circuit limits the open-circuit voltage to below 20 mV, which is often required with
low-glitch measurements, such as measuring switch and relay contact resistance.
When dry circuit is enabled, offset compensation is automatically enabled.
Example
dmm.measure.func = dmm.FUNC_4W_RESISTANCE
dmm.measure.drycircuit = dmm.ON
Set the measure function to 4-wire
resistance and enable dry circuit.
Also see
dmm.measure.offsetcompensation.enable (on page 8-173)
dmm.measure.range (on page 8-175)

Keithley DMM7510 Specifications

General

Resolution	7.5 digits
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	10 µA to 10 A
Resistance Range	10 Ω to 1 GΩ
Sampling Rate	1 MS/s
Memory	27.5 million readings
Display	5 inch capacitive touchscreen
AC Voltage Accuracy	±0.06% of reading
AC Current Range	10 A
Connectivity	USB, LAN, GPIB