The Keithley Model 2016 is a high-performance 6.5-digit audio analyzing digital multimeter (DMM). It combines standard high-accuracy DMM capabilities with high-quality audio band measurements, including Total Harmonic Distortion (THD), THD+Noise, and SINAD. Designed with a built-in 20Hz to 20kHz low-distortion sine wave generator, the Model 2016 provides dual output levels of up to 9.5Vrms single-ended or 19Vrms differential, making it ideal for characterizing audio-band devices, telecommunication systems, and automotive entertainment components.

Specifications

General

ParameterValue
InterfacesGPIB (IEEE-488.2), RS-232

Physical

ParameterValue
Operating Temperature0 °C to 50 °C
Dimensions (W×H×D)213 mm × 89 mm × 370 mm

DC Voltage Specifications

ParameterValue
DCV Measurement Ranges100 mV, 1 V, 10 V, 100 V, 1000 V
DCV Resolution100 nV (6.5-digit resolution on 100 mV range)
Input Resistance>10 GΩ on 100 mV, 1 V, 10 V ranges; 10 MΩ ±1% on 100 V, 1000 V ranges
Common Mode Rejection Ratio (CMRR)>120 dB at DC, 50 Hz or 60 Hz (with 1 kΩ imbalance)
Normal Mode Rejection Ratio (NMRR)>60 dB at 50 Hz or 60 Hz

AC Voltage Specifications

ParameterValue
ACV Measurement Ranges100 mV, 1 V, 10 V, 100 V, 750 V
ACV Resolution100 nV
ACV Frequency Range3 Hz to 300 kHz
ACV Crest Factor5:1 at full scale
ACV Input Impedance1 MΩ ±2% in parallel with <100 pF

Resistance Specifications

ParameterValue
Resistance Measurement Ranges100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ
Resistance Resolution100 μΩ
Max Lead Resistance (4-Wire)10% of range per lead (100 Ω range); 1 kΩ per lead (all other ranges)

Current Specifications

ParameterValue
DCI Measurement Ranges10 mA, 100 mA, 1 A, 3 A
ACI Measurement Ranges1 A, 3 A
ACI Frequency Range3 Hz to 5 kHz

Audio Band Sine Wave Generator

ParameterValue
Frequency Range20 Hz to 20 kHz
Output Voltage Range (Balanced)0 to 19 Vrms differential
Output Voltage Range (Unbalanced)0 to 9.5 Vrms single-ended

Audio Distortion Analyzer

ParameterValue
THD Accuracy±0.8 dB from 20 Hz to 20 kHz
THD+Noise Accuracy±0.8 dB from 20 Hz to 20 kHz
SINAD Accuracy±0.8 dB from 20 Hz to 20 kHz

System Speed and Memory

ParameterValue
Reading Rate to MemoryUp to 2000 readings/s (at 4.5-digit resolution)
Reading Rate to GPIBUp to 2000 readings/s (at 4.5-digit resolution)
Internal Buffer Capacity1024 readings

Connectivity and Control

ParameterValue
GPIB InterfaceIEEE-488.2 conforming
Trigger Link Interface8-pin micro-DIN

Environmental and Safety

ParameterValue
Storage Temperature-40 °C to 70 °C
Operating Humidity80% R.H. non-condensing up to 35 °C
Warm-up Time1 hour to rated specs

Audio Generator

ParameterValue
Source Frequency Range20 Hz - 20 kHz

Power Specifications

ParameterValue
Line Voltage Ranges100 V / 120 V / 220 V / 240 V ±10%
Line Frequency Range45 Hz - 66 Hz and 360 Hz - 440 Hz (automatically sensed)

DMM Measurements

ParameterValue
Diode Test Current Source1 mA

Input Protection

ParameterValue
Maximum Common Mode Voltage500 V peak (LO to Earth)
Current Input Protection3 A, 250 V fast-acting fuse

Temperature Measurement

ParameterValue
RTD Temperature Measurement Range-200 °C to +630 °C

Technology

6.5-digit Audio Analyzing Digital Multimeter

Applications

Audio-band device characterization, THD/SINAD testing, telecommunications hardware, and automotive infotainment testing