Model 2015 Total Harmonic Distortion (THD), 6-1/2-Digit DMM

The Model 2015 Total Harmonic Distortion Multimeter combines audio band quality measurements with a full function 6-1/2-digit DMM. This multimeter computes Total Harmonic Distortion (THD), THD+noise, SINAD, and individual harmonics. The 2015 has programmable audio-band sine wave sources for generating stimulus signals. A second source output, the inverse of the first output, combined with the first output, provides a differential source output. The Model 2015 has a 4Vrms single-ended output and an 8Vrms differential source output. The 2015 contains programmable low-pass and high-pass filters that can be combined to form a bandpass filter. In addition, five standard communication filters (CCITT, CCIR, C-message, A-weighting, and CCIR/ARM) are available for shaping the input signal for audio and telecommunications applications. The 2015 is optimized for minimizing production test time. This instrument can execute a sweep of 30 frequencies and output both voltage and THD at each frequency in only 1.1 seconds. All this audio measurement capability is combined with a DMM so that one instrument can replace two instruments in a test system.

Key Features and Benefits:

• THD, THD+Noise, and SINAD measurements
• 20Hz-20kHz sine wave generator
• Fast frequency sweeps
• 2015: 4Vrms single-ended or 8Vrms differential output
• Individual harmonic magnitude measurements
• 5 standard audio shaping filters
• 13 DMM functions (6 1/2 digits)

Test engineers can make a broad range of voltage, resistance, current, frequency, and distortion measurements, all with the same compact, half-rack measurement instrument.

Related Applications:

• Wireless communication device audio quality testing
• Component linearity testing
• Lighting and ballast THD limit conformance testing
• Telephone and automotive speaker testing