Keithley 3730

Section
5: Basic Digital Multimeter (DMM) Operation Series 3700 System Switch/Multimeter User'
s Manual
5
-30 Document Number: 3700S-900-
01 Rev. A / August 2007
Open lead detection
The Series 3700 has four methods to detect open lead conditions:
 ISOUR open voltage
 VMEAS open voltage
 Calculated measurement
 dmm.opendetector
The following figures contains open lead detection schematics for various measurements.
Figure 5-19: Simplified Dry-Circuit open lead detection schematic