The Tektronix DMM4020 Digital Multimeter (hereafter referred to as the Meter) is a 5-
1/2 digit dual-display multimeter designed for bench-top, field service, and system
applications. The multiple measurement functions, plus the RS-232 remote interface,
make the Meter an ideal candidate for precision manual measurements and use in
automated systems. For portability, the Meter includes a carrying handle that also serves
as a bail for bench-top operation.
Some features provided by the Meter are:
? A dual vacuum fluorescent display that allows two properties of an input signal to be
displayed at the same time (e.g., ac voltage in one display and frequency in the other)
? 5-1/2 digit resolution
? True-rms ac
? 2, 4 wire resistance or patented 2x4 wire resistance measurement technique
? 200 mV to 1000 Vdc range with 1 μV sensitivity
? 200 mV to 750 Vac rms with 1 μV sensitivity
? 200 Ω to 100 MΩ with 1 mΩ sensitivity
? 200 μA to 10 Adc with 1 nA sensitivity
? 20 mA to 10 Aac with 100 nA sensitivity
? Frequency measurements from 20 Hz to 1 MHz
? Continuity and diode test
? Measurement rates of 2.5, 20 and 100 samples/second (slow, medium and fast,
respectively)
? Front-panel setup key for single key access to saved setups
? A compare mode to determine if a measurement is within defined limits
? Remote operation via the RS-232 interface
? Closed-case calibration (no internal calibration adjustments)
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