DMM covers all the bases
By Staff -- Test & Measurement World, 8/1/2007
Keithley’s Model 2100 digital multimeter (DMM) family gives you 6½-digit resolution and includes many popular measurement features, while boasting a 10-VDC accuracy of 38 ppm. At 6½ digits, the 2120 takes 50 readings/s over the USB bus. At 4½ digits, speed increases to 2000 readings/s. The 2120 can store up to 2000 readings.
Measurement functions include AC and DC voltage (0.1-V to 1000-V DC scales with AC to 750 V) and current (10-mA to 3-A ranges), two-wire and four-wire resistance, frequency (3 Hz to 300 KHz), and RTD temperature. The instrument performs calculations such as mX+b, dB, dBm, min/max, and ratio.
The Model 2100 has selectable front and rear inputs, and you can make two-wire and four-wire resistance measurements from either the front or rear panel. The rear-panel connections are useful for rack-mounted applications. The rear panel also provides a USB port. You can write your own applications using SCPI commands, or you can use included software to log data to Excel or Word.
Price: $845 ($795 until September 30, 2007). Keithley Instruments, www.keithley.com.
