In this section:DMM measurement capabilities ............................................... 4-1High-energy circuit safety precautions ..................................... 4-2Performance considerations..................................................... 4-2System considerations ............................................................. 4-6Voltage measurements (DC volts and AC volts) ...................... 4-9Current measurements (DC current and AC current) ............. 4-14Resistance measurements ..................................................... 4-16Temperature measurements .................................................. 4-22Frequency and period measurements .................................... 4-41Continuity testing.................................................................... 4-44Refining measurements ......................................................... 4-47DMM measurement capabilitiesThe DMM is not available on the Models 3706-S or 3706-SNFP.The DMM of the Series 3700A can make the following measurements:• DC voltage measurements from –10 nV to 300 V• AC voltage measurements from 100 nV to 300 V• DC current measurements from 1pA to 3.0 A• AC current measurements from 1 nA to 3.0 A• Two-wire resistance measurements from 1 μΩ to 120 MΩ• Four-wire resistance measurements from 100 μΩ to 120 MΩ• Commonside ohms resistance measurements from 1 μΩto 2 kΩ• Frequency measurements from 3 Hz to 500 kHz• Period measurements from 2 s to 330 ms• Temperature measurements from –200 °C to 1820 °C• Continuity testing using the 1 kΩ rangeWhen using a switching module, do not exceed the maximum signal levels of the module.For information on verification and calibration of the DMM, see Verification (on page B-1).Section 4Basic DMM operation
