1:34 PM 2015, 2016 2015-P Page 41 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter The Model 2015-P Audio Analyzing Digital Multimeter and the Models 2015 and 2016 Total Harmonic Distortion Multimeters combine audio band quality measurements and analysis with a fullfunction 61⁄2-digit DMM. Test engineers can make a broad range of voltage, resistance, current, frequency, and distortion measurements, all with the same compact, half-rack measurement instrument. The Model 2016 has twice the sine wave generator output of the Model 2015 for applications that require test signals greater than 8Vrms. The Model 2015-P offers additional processing capacity for frequency spectrum analysis. • THD, THD+Noise, and SINAD measurements • 20Hz–20kHz sine wave generator • Fast frequency sweeps • 2015-P: Identifies peak spectral components • 2015: 4Vrms single-ended or 8Vrms differential output • 2016: 9.5Vrms single-ended or 19Vrms differential output • Individual harmonic magnitude measurements • 5 standard audio shaping filters • 13 DMM functions (61⁄2 digits) Frequency Domain Distortion Analysis For applications such as assessing non-linear distortion in components, devices, and systems, DSPbased processing allows the Models 2015-P, 2015, and 2016 to provide frequency domain analysis in conventional time domain instruments. They can measure Total Harmonic Distortion (THD) over a the complete 20Hz to 20kHz audio band. They also measure over a wide input range (up to 750Vrms) and have low residual distortion (–87dB). The THD reading can be expressed either in decibels or as a percentage. In addition to THD, the Models 2015-P, 2015, and 2016 can compute THD+Noise and Signal-to-Noise plus Distortion (SINAD). For analyses in which the individual harmonics are the criteria of greatest interest, the instruments can report any of the (up to 64) harmonic magnitudes that can be included in the distortion measurements. The user can program the actual number of harmonics to be included in a computation, so accuracy, speed, and complexity can be optimized for a specific application. Optimized for Production Testing The Models 2015-P, 2015, and 2016 can perform fast frequency sweeps for characterizing audio-band circuitry in production test systems. For example, the instruments can execute a single sweep of 30 frequencies and transmit both rms voltage readings and THD readings to a computer in only 1.1 seconds. With that data, a complete frequency response analysis and a harmonic distortion vs. frequency analysis can be performed in a very short time. Thus high speed testing of the audio performance of a high volume device such as a cellular telephone can be performed without reducing the number of tests or reducing the measurements in each test. With these instruments, which are optimized for production testing, test engineers can lower test times, in comparison to test speeds achievable with general purpose audio analyzers, without sacrificing production test quality. Dual Output Source The Models 2015-P, 2015, and 2016 include an internal audio band sine wave source for generating stimulus signals. A second output, the inverse of the first output, is also available, simplifying the testing of differential input circuits for common mode or noise cancellation performance. The Models 2015 and 2015-P have a 4Vrms singleended output and 8Vrms differential source output. For tests that require a higher stimulus signal, the Model 2016 provides a 9.5Vrms single-ended output and a 19Vrms differential output. 1.888.KEITHLEY Audio analyzing and Total Harmonic Distortion DMMs 11/16/01 APPLICATIONS • Wireless communication device audio quality testing • Component linearity testing • Lighting and ballast THD limit conformance testing • Telephone and automotive speaker testing (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E D I G I T A L M U LT I M E T E R S 01 Digital Multimeters 01 Digital Multimeters 11/16/01 1:34 PM 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter 2015, 2016 2015-P Ordering Information 2015 Audio analyzing and Total Harmonic Distortion DMMs Page 42 Total Harmonic Distortion 61⁄2-Digit Multimeter 2015-P Audio Analyzing DMM 2016 Total Harmonic Distortion 61⁄2-Digit DMM w/9V Source Output These products are available with an Extended Warranty. Accessories Supplied Model 1751 Safety Test Leads, User Manual, Service Manual. Wide Selection of Audio Filters Five industry-standard bandpass filters are provided for shaping the input signal for audio and telecommunication applications. Available filters include the CCITT weighting filter, CCIR filter, C-message filter, CCIR/ARM filter, and “A” weighting filter. The Models 2015-P, 2015, and 2016 provide programmable, high cutoff (low pass) and low cutoff (high pass) filters. Furthermore, the two filters can be implemented together to form a bandpass filter. The programmable filters can be used to filter out noise generated by electromechanical machinery on the production floor or to simulate other types of system transmission characteristics. Broad Measurement Flexibility In addition to their THD, THD+Noise, SINAD, and individual harmonic measurement capabilities, the instruments provide a comprehensive set of DMM functions, including DCV, ACV, DCI, ACI, 2WΩ, 4WΩ, temperature, frequency, period, dB, dBm, and continuity measurements, as well as diode testing. This multi-functional design minimizes added equipment costs when configuring test setups. Figure 2. THD and 2nd, 3rd, and 4th Harmonics as a Function of Frequency 0 Figure 1. Total Harmonic Distortion Analysis and Frequency Response of a Portable Wireless Telecommunication Device THD: –10 Levels relative to fundamental: 2nd harmonic 3rd harmonic 4th harmonic –20 –30 Device Under Test –40 Relative Output Level (dB) –50 –60 Output Transducer –70 Input Transducer –80 –90 –100 100 Source Output 1000 Signal Input 2015 MULTIMETER 10000 Frequency, Hz Figure 3. Frequency Response 10 Model 2015 D I G I T A L M U LT I M E T E R S 5 Figures 1, 2, and 3 demonstrate how the Model 2015-P, 2015, or 2016 can provide both time domain and frequency domain measurements in a single test protocol. Figure 1 shows a sample test system schematic with a telecommunication device in a loop back mode test. The Model 2015 source provides a stimulus frequency sweep, and the Model 2015 measures the response from the microphone circuit. Figure 2 shows the resulting frequency domain analysis of the THD and the first three harmonics as a function of frequency. Figure 3 shows the time domain analysis of microphone circuit output voltage as a function of frequency. 1.888.KEITHLEY 0 Relative Output (dB) -5 -10 -15 -20 100 1000 10000 Frequency (Hz) (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E 1:34 PM Page 43 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter 2015, 2016 2015-P Wide Band or Narrow Band Noise Measurements The Models 2015-P, 2015, and 2016 are capable of measuring both wide band noise and narrow band noise. Alternatively, these instruments’ DSP (digital signal processing) capabilities allow users to make frequency domain measurements of RMS voltage noise over the 20Hz–20kHz frequency audio band or a narrow portion of the band. Furthermore, noise measurements can be extracted in the presence of a stimulus signal for fast signal-to-noise computations. Spectrum Analysis The Model 2015-P has internal computational capabilities that allow it to characterize an acquired signal spectrum. This instrument can identify and report the frequency and amplitude of the highest value in a complete spectrum or within a specified frequency band. It can also identify additional peaks in descending order of magnitude. The Model 2015-P’s on-board capabilities make it simple to obtain a thorough analysis of a frequency spectrum more quickly and with little or no need for external analysis software. Figure 4. The Model 2015-P directly identifies peak values of the frequency spectrum. Frequency Spectrum Between 1.0kHz and 1.4kHz –20 Maximum 2nd peak 3rd peak Maximum left of 4th peak 4th peak Maximum right of 4th peak –40 –60 –80 –100 –120 1.0kHz 1.1kHz 1.3kHz 1.4kHz Frequency ACCESSORIES AVAILABLE CABLES/ADAPTERS OTHER 7007-1 7007-2 8501-1, 8501-2 8502 8503 7009-5 KPCI-488 KPC-488.2AT Shielded IEEE-488 Cable, 1m (3.3 ft) Shielded IEEE-488 Cable, 2m (6.6 ft) Trigger-Link Cables, 1m (3.3 ft), 2m (6.6 ft) Trigger Link Adapter Box Trigger Link Cable to 2 male BNCs,1m (3.3 ft) RS-232 Cable RACK MOUNT KITS Single Fixed Rack Mount Kit Dual Fixed Rack Mount Kit KPC-TM TestPoint 1050 2015-EW 2015-P-EW 2016-EW IEEE-488 Interface/Controller for the PCI Bus IEEE-488 Interface Card for IBM PC/AT (full slot) Trigger Master Interface Test Development Software Padded Carrying Case 1 Year Warranty Extension 1 Year Warranty Extension 1 Year Warranty Extension D I G I T A L M U LT I M E T E R S 4288-1 4288-2 1.888.KEITHLEY 1.2kHz Audio analyzing and Total Harmonic Distortion DMMs 11/16/01 Magnitude (dBV) 01 Digital Multimeters (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E 01 Digital Multimeters 11/16/01 1:34 PM Page 44 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter 2015, 2016 2015-P Model 2015, 2015-P, 2016 Specifications DISTORTION CHARACTERISTICS GENERATOR CHARACTERISTICS VOLTAGE RANGE: 100mV, 1V, 10V, 100V, 750V (user selectable). INPUT IMPEDANCE: 1MΩ paralleled by <100pF. DISPLAY RANGE: 0–100% or 0–100.00dB. RESOLUTION: 0.0001% or 0.00001dB. FUNDAMENTAL FREQUENCY RANGE: 20Hz–20kHz. HARMONIC FREQUENCY RANGE: 40Hz–50kHz. FREQUENCY RESOLUTION: 0.008Hz. FREQUENCY ACCURACY: ±0.01% of reading. FREQUENCY TEMPERATURE COEFFICIENT: ≤100ppm over operating temperature range. MEASUREMENT ACCURAC Y RESIDUAL MODE (1 Year, 23°C ±5°C) DISTORTION1 THD and individual harmonic magnitudes ±0.8dB, 20Hz to 20kHz2 0.004% or –87dB 20Hz to 20kHz THD + n ±1.5 dB, 100Hz to 20kHz2 0.056% or –65dB 20Hz to 20kHz SINAD ±1.5dB 100Hz to 20kHz2 +65dB 20Hz to 20kHz AC Level V rms ±(0.13% of reading + 0.009% of range) 20Hz to 20kHz FREQUENCY RANGE: 10–20kHz. FREQUENCY RESOLUTION: 0.007Hz. FREQUENCY ACCURACY: ±(0.015% of reading + 0.007Hz)1. FREQUENCY TEMPERATURE COEFFICIENT: <100ppm over operating temperature range. SOURCE OUTPUT: WAVEFORM: Sinewave. AMPLITUDE RANGE: 2015-P, 2015: 2V rms (50Ω and 600Ω) or 4V rms (HI Z). 2016: 2V rms (50Ω and 600Ω) or 9.5V rms (HI Z). AMPLITUDE RESOLUTION: 2015-P, 2015: 0.5mV rms (50Ω and 600Ω) or 1mV rms (HI Z). 2016: 1.25mV rms (50Ω and 600Ω) or 2.5mV rms (HI Z). AMPLITUDE ACCURACY: 2015-P, 2015: ±(0.3% of setting + 2mV)1, 4. 2016: ±(0.3% of setting + 5mV)1, 4. AMPLITUDE TEMPERATURE COEFFICIENT: Typically 0.015%/°C. AMPLITUDE FLATNESS: ±0.1dB1, 4, 5. OUTPUT IMPEDANCE: 50Ω ± 1Ω or 600Ω ± 10Ω, user selectable. THD: –64dB6. NOISE: 2015-P, 2015: 100µV rms2. 2016: 250µV rms2. DC OFFSET VOLTAGE: 2015-P, 2015: ±1.2mV1. 2016: ±3mV1. DISTORTION MEASUREMENT AUDIO FILTERS INV/PULSE OUTPUT (SINEWAVE MODE): None C-Message CCITT Weighting CCIR/ARM CCIR “A” Weighting NUMBER OF HARMONICS INCLUDED IN THD CALCULATION: 2 to 64 (user selectable). HI AND LO CUTOFF FILTERS (bus settable): 20Hz–50kHz. Can be combined to form brickwall bandpass filter. FREQUENCY: Same as source output. AMPLITUDE RANGE: 2015-P, 2015: 2V rms (50Ω and 600Ω) or 4V rms (HI Z). 2016: 2V rms (50Ω and 600Ω) or 9.5V rms (HI Z). AMPLITUDE RESOLUTION: 2015-P, 2015: 0.5mV rms (50Ω and 600Ω) or 1mV rms (HI Z). 2016: 1.25mV rms (50Ω and 600Ω) or 2.5mV rms (HI Z). AMPLITUDE ACCURACY: 2015-P, 2015: ±(2.0% of setting + 2mV)1, 4. 2016: ±(2.0% of setting + 5mV)1, 4. AMPLITUDE FLATNESS: ±0.1dB1, 4, 5. OUTPUT IMPEDANCE: Same as Source Output setting. THD: –64dB6. NOISE: 2015-P, 2015: 100µV rms2. 2016: 250µV rms2. DC OFFSET VOLTAGE: 2015-P, 2015: ±1.1mV typ., ±13mV max.1 2016: ±3mV typ., ±13mV max.1 DISTORTION MEASUREMENT READING RATE3 FUNDAMENTAL FREQUENCY ACQUISITION MODE MINIMUM READINGS PER SECOND FUNDAMENTAL FREQUENCY RANGE Single acquisition or stored value 20 100 1 Hz to 100 Hz Hz to 1 kHz kHz to 20 kHz 14 24 28 Automatic 20 30 400 Hz to 30 Hz Hz to 400 Hz Hz to 20 kHz 5.5 6 6.6 INV/PULSE OUTPUT (PULSE MODE): FREQUENCY: Same as source output. DUTY CYCLE: 45% ±3%. OUTPUT IMPEDANCE: Same output impedance as the source output. AMPLITUDE: 0.0V ±0.07V to 4.9V ±0.12V pulse open circuit1, 3. 0.0V ±0.05V to 3.3V ±0.08V pulse 100Ω load1, 3. OVERSHOOT: 1.0V maximum pulse open circuit3. 0.2V maximum with 100Ω load pulse open circuit3. UNDERSHOOT: 1.1V maximum pulse open circuit3. 0.45V maximum with 100Ω load pulse open circuit3. D I G I T A L M U LT I M E T E R S FREQUENCY SWEEP READING RATE TIME (seconds)4 0.2 1.1 3.5 6.9 NUMBER OF FREQUENCIES 5 30 100 200 NOTES NOTES 1. Input signal at full scale. 2. VIN ≥20% of range and harmonics >–65dB. 3. Speeds are for default operating conditions (*RST), and display off, auto range off, binary data transfer, trig delay = 0. 4. Typical times: frequencies in 400–4kHz range, binary data transfer, TRIG DELAY = 0, Display OFF, Auto Range OFF. Data returned is THD measurement plus AC voltage. 1.888.KEITHLEY 1. 1 year, 23°C ±5°C. 2. Measured at VOUT = 0V with gain 100 amplifier and 2-pole 50kHz low pass filter, Inv/Pulse in sinewave mode, HI Z output impedance, and no load. 3. With HI Z output impedance and 1m 50Ω coaxial cable. 4. HI Z output impedance, no load. 5. 4V output. 6. THD measurement includes harmonics 2 through 5, 1V rms output, HI Z, no load. (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E 01 Digital Multimeters 11/16/01 1:34 PM Page 45 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter 2015, 2016 2015-P DC Characteristics TEST CURRENT OR BURDEN VOLTAGE FUNCTION RANGE VOLTAGE 100.0000 mV 1.000000 V 10.00000 V 100.0000 V 1000.000 V 9 0.1 1.0 10 100 1 µV µV µV µV mV RESISTANCE 15 100.0000 1.000000 10.00000 100.0000 1.000000 10.00000 100.0000 Ω kΩ kΩ kΩ MΩ MΩ 11 MΩ 11 100 1 10 100 1 10 100 µΩ mΩ mΩ mΩ Ω Ω Ω CURRENT 10.00000 mA 100.0000 mA 1.000000 A 3.00000 A 10 100 1 10 nA nA µA µA DIODE TEST RESOLUTION 1 kΩ 3.00000 10.00000 10.00000 > 10 GΩ > 10 GΩ > 10 GΩ 10 MΩ ±1% 10 MΩ ±1% 1 mA 1 mA 100 µA 10 µA 10 µA 700 nA // 10MΩ 700 nA // 10MΩ < 0.15 V < 0.03 V < 0.3 V <1 V 100 mΩ 1 mA 10 µV 10 µV 10 µV 1 mA 100 µA 10 µA V V V DIGITS 61⁄2 3, 4 61⁄2 3, 7 61⁄2 3, 5 51⁄2 3, 5 51⁄2 5 51⁄2 5 41⁄2 5 READINGS/s 5 30 50 270 500 1000 2000 TEMPERATURE COEFFICIENT 0°–18°C & 28°–50°C 30 + 30 15 + 6 15 + 4 15 + 6 20 + 6 40 + 35 25 + 7 20 + 5 30 + 6 35 + 6 50 + 35 30 + 7 30 + 5 45 + 6 45 + 6 2+6 2+1 2+1 5+1 5+1 30 + 30 20 + 6 20 + 6 20 + 6 20 + 6 150 + 6 800 + 30 80 + 40 80 + 10 80 + 10 80 + 10 80 + 10 200 + 10 1500 + 30 100 + 40 100 + 10 100 + 10 100 + 10 100 + 10 400 + 10 1500 + 30 8+6 8+1 8+1 8+1 8+1 25 + 1 150 + 1 60 + 15 100 + 150 200 + 15 1000 + 10 300 + 40 300 + 400 500 + 40 1200 + 15 500 + 40 500 + 400 800 + 40 1200 + 15 40 + 100 100 + 100 120 + 100 8+1 30 + 7 30 + 7 30 + 7 40 + 7 40 + 7 40 + 7 8+1 8+1 8+1 50 + 5 50 + 50 50 + 5 50 + 5 SPEED AND NOISE REJECTION PLCs 8 10 1 1 0.1 0.1 0.04 0.01 RATE 10 PLC 1 PLC 0.1 PLC 0.01 PLC READINGS/S 5 50 500 2000 DIGITS 61⁄2 61⁄2 51⁄2 41⁄2 RMS NOISE 10V RANGE < 1.5 µV < 4 µV < 22 µV < 150 µV NMRR 12 60 dB 60 dB — — CMRR 13 140 dB 140 dB 80 dB 80 dB DC NOTES DC SYSTEM SPEEDS 2, 6 RANGE CHANGE 3: 50 / s. FUNCTION CHANGE 3: 45 / s. AUTORANGE TIME 3, 10: <30 ms. ASCII READINGS TO RS-232 (19.2K BAUD): 55 / s. MAX. INTERNAL TRIGGER RATE: 2000 / s. MAX. EXTERNAL TRIGGER RATE: 400 / s. DC GENERAL LINEARITY OF 10VDC RANGE: ±(2ppm of reading + 1ppm of range). DCV, Ω, TEMPERATURE, CONTINUITY, DIODE TEST INPUT PROTECTION: 1000V, all ranges. MAXIMUM 4WΩ LEAD RESISTANCE: 10% of range per lead for 100Ω and 1kΩ ranges; 1kΩ per lead for all other ranges. DC CURRENT INPUT PROTECTION: 3A, 250V fuse. SHUNT RESISTOR: 0.1Ω for 3A, 1A and 100mA ranges. 10Ω for 10mA range. CONTINUITY THRESHOLD: Adjustable 1Ω to 1000Ω. AUTOZERO OFF ERROR: Add ±(2ppm of range error + 5µV) for <10 minutes and ±1°C change. OVERRANGE: 120% of range except on 1000V, 3A and Diode. 1.888.KEITHLEY 1 YEAR 23°C ± 5° 20 + 6 20 + 6 20 + 6 DC OPERATING CHARACTERISTICS 2 FUNCTION DCV (all ranges), DCI (all ranges), and 2W Ohms (<10M range) 90 DAY 23°C ± 5° 24 HOUR 14 23°C ± 1° INPUT RESISTANCE 1. Add the following to ppm of range accuracy specification based on range:1V and 100V, 2ppm; 100mV, 15ppm; 100Ω, 15ppm; <1MΩ, 2ppm; 10mA and 1A, 2ppm; 100mA, 20ppm. 2. Speeds are for 60 Hz operation using factory default operating conditions (*RST). Autorange off, Display off, Trigger delay = 0. 3. Speeds include measurement and binary data transfer out the GPIB. 4. Auto zero off. 5. Sample count = 1024, auto zero off. 6. Auto zero off, NPLC = 0.01. 7. Ohms = 24 readings/second. 8. 1 PLC = 16.67ms @ 60Hz, 20ms @ 50Hz/400Hz. The frequency is automatically determined at power up. 9. For signal levels >500V, add 0.02ppm/V uncertainty for the portion exceeding 500V. 10. Add 120ms for ohms. 11. Must have 10% matching of lead resistance in Input HI and LO. 12. For line frequency ±0.1%. 13. For 1kΩ unbalance in LO lead. 14. Relative to calibration accuracy. 15. Specifications are for 4-wire ohms or 2-wire ohms with REL function. (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E D I G I T A L M U LT I M E T E R S CONTINUITY 2W ACCURACY: ±(PPM OF READING + PPM OF RANGE) (PPM = PARTS PER MILLION) (E.G., 10PPM = 0.001%) Model 2015, 2015-P, 2016 Specifications CONDITIONS: MED (1 PLC)1 OR SLOW (10 PLC) OR MED (1 PLC) WITH FILTER OF 10 01 Digital Multimeters 11/16/01 1:34 PM Page 46 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter 2015, 2016 2015-P Model 2015, 2015-P, 2016 Specifications True RMS AC Voltage and Current Characteristics VOLTAGE RANGE 100.0000 mV 1.000000 V 10.00000 V 100.0000 V 750.000 V CURRENT RANGE 1.000000 A 3.00000 A RESOLUTION 0.1 µV 1.0 µV 10 µV 100 µV 1 mV RESOLUTION 1 µA 10 µA ACCURACY 1: ±(% of reading + % of range), 23°C ±5 °C 10 Hz– 20 kHz– 50 kHz– 20 kHz 50 kHz 100 kHz CALIBRATION CYCLE 3 Hz– 10 Hz 90 Days 0.35 + 0.03 0.05 + 0.03 0.11 + 0.05 0.60 + 0.08 4 + 0.5 1 Year 0.35 + 0.03 0.06 + 0.03 0.12 + 0.05 0.60 + 0.08 4 + 0.5 TEMPERATURE COEFFICIENT 8 0.035 + 0.003 0.005 + 0.003 0.006 + 0.005 0.01 + 0.006 CALIBRATION CYCLE 90 Day/1 Year 90 Day/1 Year 3 Hz 10 Hz 0.30 + 0.04 0.35 + 0.06 10 Hz 5 kHz 0.10 + 0.04 0.15 + 0.06 TEMPERATURE COEFFICIENT 8 0.035 + 0.006 0.015 + 0.006 HIGH CREST FACTOR ADDITIONAL ERROR ±(% of reading) 7 AC SYSTEM SPEEDS 2, 5 CREST FACTOR: ADDITIONAL ERROR: FUNCTION/RANGE CHANGE 6: 4/s. AUTORANGE TIME: <3s. ASCII READINGS TO RS-232 (19.2K BAUD) 4: 50/s. MAX. INTERNAL TRIGGER RATE 4: 300/s. MAX. EXTERNAL TRIGGER RATE 4: 260/s. 1–2 0.05 2–3 0.15 3–4 0.30 4–5 0.40 AC OPERATING CHARACTERISTICS 2 FUNCTION ACV (all ranges), and ACI (all ranges) DIGITS 61⁄2 3 61⁄2 3 61⁄2 4 61⁄2 3 61⁄2 4 READINGS/s 2s/reading 1.4 4.8 2.2 35 RATE SLOW MED MED FAST FAST BANDWIDTH 3 Hz–300 kHz 30 Hz–300 kHz 30 Hz–300 kHz 300 Hz–300 kHz 300 Hz–300 kHz ADDITIONAL LOW FREQUENCY ERRORS ±(% of reading) 20Hz – 30Hz – 50Hz – 100Hz – 200Hz – 30Hz 50Hz 100Hz 200Hz 300Hz > 300Hz SLOW 0 0 0 0 0 0 MED 0.3 0 0 0 0 0 FAST — — 1.0 0.18 0.10 0 100 kHz– 300 kHz 0.03 + 0.01 AC GENERAL INPUT IMPEDANCE: 1MΩ ±2% paralleled by <100pF. ACV INPUT PROTECTION: 1000Vp. MAXIMUM DCV: 400V on any ACV range. ACI INPUT PROTECTION: 3A, 250V fuse. BURDEN VOLTAGE: 1A Range: <0.3V rms. 3A Range: <1V rms. SHUNT RESISTOR: 0.1Ω on all ACI ranges. AC CMRR: >70dB with 1kΩ in LO lead. MAXIMUM CREST FACTOR: 5 at full scale. VOLT HERTZ PRODUCT: ≤8 × 107 V·Hz. OVERRANGE: 120% of range except on 750V and 3A ranges. D I G I T A L M U LT I M E T E R S AC NOTES 1. Specifications are for SLOW rate and sinewave inputs >5% of range. 2. Speeds are for 60 Hz operation using factory default operating conditions (*RST). Auto zero off, Auto range off, Display off, includes measurement and binary data transfer out the GPIB. 3. 0.01% of step settling error. Trigger delay = 400ms. 4. Trigger delay = 0. 5. DETector:BANDwidth 300, NPLC = 0.01. 6. Maximum useful limit with trigger delay = 175ms. 7. Applies to non-sinewaves >5Hz. 8. Applies to 0°–18°C and 28°–50°C. 1.888.KEITHLEY (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E 11/16/01 1:34 PM Page 47 61⁄2-Digit THD Multimeters 61⁄2-Digit Audio Analyzing Multimeter 2015, 2016 2015-P Triggering and Memory Temperature Characteristics READING HOLD SENSITIVITY: 0.01%, 0.1%, 1%, or 10% of reading. TRIGGER DELAY: 0 to 99 hrs (1ms step size). EXTERNAL TRIGGER LATENCY: 200µs + <300µs jitter with autozero off, trigger delay = 0. MEMORY: 1024 readings. THERMOCOUPLE 2, 3, 4 TYPE J K T Math Functions Rel, Min/Max/Average/StdDev (of stored reading), dB, dBm, Limit Test, %, and mX+b with user defined units displayed. DBM REFERENCE RESISTANCES: 1 to 9999Ω in 1Ω increments. RANGE –200 to + 760°C –200 to + 1372°C –200 to + 400°C RESOLUTION 0.001°C 0.001°C 0.001°C 90 DAY/1 YEAR (23°C ± 5°C) ACCURACY 1 Relative to Reference Junction ±0.5°C ±0.5°C ±0.5°C TEMPERATURE NOTES 1. 2. 3. 4. Standard Programming Languages For temperatures <–100°C, add ±0.1°C and >900°C add ±0.3°C. Temperature can be displayed in °C, K or °F. Accuracy based on ITS-90. Exclusive of thermocouple error. GENERAL SCPI (Standard Commands for Programmable Instruments) Remote Interface GPIB (IEEE-488.1, IEEE-488.2) and RS-232C. Frequency and Period Characteristics 1,2 ACV RANGE 100 mV to 750 V FREQUENCY RANGE 3 Hz to 500 kHz PERIOD RANGE 333 ms to 2 µs GATE TIME 1 s (SLOW) 0.1 s (MED) 10 ms (FAST) RESOLUTION ±(ppm of reading) 0.333 3.33 33.3 ACCURACY 90 DAY/1 YEAR ±(% of reading) 0.01 0.01 0.01 FREQUENCY NOTES 1.888.KEITHLEY D I G I T A L M U LT I M E T E R S 1. Specifications are for squarewave inputs >10% of ACV range, except 100mV range. On 100mV range frequency must be >10Hz if voltage is <20mV. 2. 20% overrange on all ranges except 750V range. POWER SUPPLY: 100V / 120V / 220V / 240V ±10%. LINE FREQUENCY: 45Hz to 66Hz, automatically sensed at power-up. POWER CONSUMPTION: 25 VA. OPERATING ENVIRONMENT: Specified for 0°C to 50°C. Specified to 80% R.H. at 35°C. STORAGE ENVIRONMENT: –40°C to 70°C. WARRANTY: 3 years. SAFETY: Conforms with European Union Directive 73/23/EEC, EN 610110-1, UL 3111-1. EMC: Conforms with European Union Directive 89/336/EEC, EN 55011, EN 50082-1, EN 61000-32, EN 61000-3-3, FCC part 15 class B. WARMUP: 1 hour to rated accuracy. DIMENSIONS: Rack Mounting: 89mm high × 213mm wide × 370mm deep (31⁄2 in × 83⁄8 in × 149⁄16 in). Bench Configuration (with handle and feet): 104mm high × 238mm wide × 370mm deep (41⁄8 in × 93⁄8 in × 149⁄16 in). NET WEIGHT: 4.2kg (8.8 lbs). SHIPPING WEIGHT: 5kg (11 lbs). VOLT HERTZ PRODUCT: ≤8 × 107V·Hz. Model 2015, 2015-P, 2016 Specifications 01 Digital Multimeters (U.S. only) www.keithley.com A G R E A T E R M E A S U R E O F C O N F I D E N C E