The Model 2701 is the latest addition to Keithley's popular Integra Series instruments line. All Integra Series products combine precision measurement, switching, and control in a single tightly integrated enclosure. Each one is based on a state-of-the-art 61⁄2-digit, 22-bit integrating A/D converter to ensure superior measurement precision and noise rejection. With the addition of Ethernet communications capability, the Model 2701 opens the door to making precision measurements easily and economically just about anywhere. Model 2701 is a 61⁄2-digit high-performance multimeter/data acquisition system. It can measure voltage (DC and AC), current (DC and AC), resistance (2- and 4-wire), temperature (thermocouple, thermistor, and 4-wire RTD), frequency and period, and test continuity. Additional features of Model 2701 include: Setup storage — Seven instrument setups (five user, *RST defaults, and factory defaults) can be saved and recalled. Offset-compensated ohms — A two-measurement process for 4-wire ohms to cancel the effects of thermal EMFs. Available for the 100Ω, 1kΩ, and 10kΩ ranges. Math — mX+b, percent, and reciprocal (1/X) calculations provide mathematical manipulation of readings. Relative — Null offsets or establish baseline values. Ratio and channel average — Ratio and average calculations for two switching module channels. Buffer — Store up to 450,000 readings in the internal buffer. Limits — Two sets of high and low reading limits to test devices. Digital I/O port — Five digital limit test output lines to control external circuitry. The digital trigger link and hardware interlock input can also be accessed at this port. Monitor — The Model 2701 can monitor a selected channel. A scan can be trig- gered to start when the Monitor detects a reached reading limit. Remote interface — Model 2701 can be controlled using the 10BaseT and 100BaseTX autosensing Ethernet or the RS-232 interface.