2015, 2015-P, 6
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2 0 21
Harmonic
Ratio to
Fundamental
2016, 2016-P 6
• THD, THD+Noise, and SINAD
measurements
• 20Hz–20kHz sine wave
generator
• Fast frequency sweeps
• 2015-P, 2016-P: Identifies peak
spectral components
• 2015, 2015-P: 4Vrms single-
ended or 8Vrms differential
output
• 2016, 2016-P: 9.5Vrms single-
ended or 19Vrms differential
output
Individual harmonic magnitude
•
measurements
1
⁄2 digits)
lters
5 standard audio shaping fi
•
• 13 DMM functions (6
1
⁄2-Digit THD Multimeters
1
⁄2-Digit Audio Analyzing Multimeters
The Models 2015-P and 2016-P Audio Analyzing
Digital Multimeters and the Models 2015 and 2016
Total Harmonic Distortion Multimeters combine
audio band quality measurements and analysis with
a full-function 6
1
⁄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 and 2016-P have twice the
sine wave generator output of the Model 2015 for
applications that require test signals greater than
8Vrms. The Model 2015-P and 2016-P offer additional processing capacity for frequency spectrum
analysis.
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,
2016, and 2016-P to provide frequency domain
analysis in conventional time domain instruments.
They can measure Total Harmonic Distortion (THD) over 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, 2015-P, 2016, and 2016-P can compute THD+Noise and Signalto-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. (See
Figure 1. Frequency Spectrum of 1kHz Square Wave
Figure 1.)
Audio Analyzing and Total Harmonic Distortion DMMs
APPLICATIONS
• Wireless communication device
audio quality testing
• Component linearity testing
• Lighting and ballast THD limit
conformance t
• Telephone and automotive
speaker testing
1.888.KEITHLEY
www.keithley.com
esting
(U.S. only)
Figure 1 shows a plot of a square wave’s harmonics (frequency components) comput
transmitt
consists of only odd harmonics whose magnitudes are (1/harmonic number
the fundamental). F
fundamental.
ed to a personal comput
or example, the magnitude of the third harmonic is
A GR
EA
er by the Model 2
TER M
EASU
15 or 2016. A square wave’s spectral content
0
1
⁄3the magnitude of the
RE OF CONFIDENCE
ed and
× the magnitude of
DIGITAL MULTIMETERS & SYSTEMS
31
Device Under Test
I
nput
Transducer
Model 2015, 2015-P, 2016, or 2016-P
Signal
Input
Source
Output
2
015 MULTIMETER
Output
Transducer
–100
–90
–80
–70
–60
–50
–40
–30
–20
–
10
0
100 1000 10000
Frequency (Hz)
Relative
Output
Level (dB)
THD:
Levels r elative to fundamental:
2
nd harmonic
3rd harmonic
4
th harmonic
–20
–15
–10
–5
0
5
10
100 1000 10000
Frequency (Hz)
Relative
Output
(dB)
2015, 2015-P, 6
2016, 2016-P 6
1
⁄2-Digit THD Multimeters
1
⁄2-Digit Audio Analyzing Multimeters
Figure 2. Total Harmonic Distortion
Figures 2, 3, and 4 demonstrate how the
Model 2015, 2015-P, 2016, or 2016-P can provide both time domain and frequency domain
measurements in a single test protocol.
shows a sample test system schematic with
2
a telecommunication device in a loop back
mode test. The Audio Analyzing DMM’s source
provides a stimulus frequency sweep, and the
Audio Analyzing DMM measures the response
Audio Analyzing and Total Harmonic Distortion DMMs
from the microphone circuit.
the resulting frequency domain analysis of the
THD and the first three harmonics as a function of frequency.
domain analysis of microphone circuit output
voltage as a function of frequency.
Analysis and Frequency
Response of a Portable Wireless
Telecommunication Device
Figure 3 shows
Figure 4 shows the time
Figure 3. THD and 2nd, 3rd, and 4th Harmonics as a Function of Frequency
Figure 4. Frequency Response
Figure
Ordering Information
2015 Total Harmonic
2015-P Audio Analyzing DMM
16 Total Harmonic
0
2
2016-P Audio Analyzing DMM
hese products are available
T
with an Extended Warranty.
DIGITAL MULTIMETERS & SYSTEMS
32
Accessories Supplied
Model 1751 Safety T
User Manual, Service Manual.
1.888.KEITHLEY
www.keithley.com
tion 6
Distor
Multimeter
Distortion 6
DMM w/9V Source
Output
w/9V Source Output
1
it
⁄2-Dig
1
⁄2-Digit
est Leads,
(U.S. only)
Optimized for Production Testing
The Models 2015, 2015-P, 2016, and 2016-P can perform fast frequency sweeps for characterizing
audio-band circuitr
y in production test systems. F
or example, the instr
sweep of 30 frequencies and transmit both rms voltage readings and THD
only 1.1 seconds. W
ith that data, a complete frequency response analysis and a harmonic distortion
uments can execute a single
readings to a computer in
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, 2015-P
, 2016, and 2016-P 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.
A GREATER MEASURE OF CONFIDENCE
2015, 2015-P,
CCIR Weighting Filter
–60
–50
–40
–30
–20
–10
0
10
20
10 100 1000 10000 100000
Frequency (Hz)
Gain (dB)
CCITT Weighting Filter
–70
–60
–
50
–40
–
30
–20
–10
0
10
10 100 1000 10000
Frequency (Hz)
G
ain (dB)
CCIR/ARM
–60
–50
–40
–30
–
20
–
10
0
1
0
2
0
10 100 1000 10000 100000
Frequency (Hz)
G
ain (dB)
C
–Message Weighting Filter
–60
–50
–40
–30
–20
–10
0
10
20
10 100 1000 10000
Frequency (Hz)
Gain (dB)
A Weighting Filter
–60
–50
–40
–30
–20
–10
0
1
0
20
10 100 1000 10000 100000
Frequency (Hz)
Gain (dB)
61⁄2-Digit THD Multimeters
2016, 2016-P
Figure 5a.
Figure 5b.
61⁄2-Digit Audio Analyzing Multimeters
Figure 5d.
Figure 5e.
Figure 5c.
1.888.KEITHLEY
www.keithley.com
(U.S. only)
A GR
The Models 2015 and 2015-P have a 4Vrms single-ended output and 8Vrms
differential source output. For tests that require a higher stimulus signal,
the Model 2016 and 2016-P provide a 9.5Vrms single-ended output and a
19Vrms differential output.
ide Selection of Audio Filt
W
ers
Five industry-standard bandpass filters are provided for shaping the input
signal for audio and telecommunication applications. A
vailable filters
include the CCITT weighting filter, CCIR filter, C-message filter, CCIR/ARM
filter, and “A” weighting filter (see
, 2016, and 2016-P
P
cutoff (high pass) fi
provide programmable, high cutoff (low pass) and low
urthermore, the two filters can be implemented
lters. F
together to form a bandpass fi
Figures 5a–5e). The Models 2015, 2015-
lter. 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
frequency
, period, dB, dBm, and continuity measurements, as well as
, A
Ω, 4WΩ, temperature,
, DCI, ACI, 2W
CV
diode testing. This multi-functional design minimizes added equipment
costs when configuring test setups.
TER M
EA
EASU
RE OF CONFIDENCE
Audio Analyzing and Total Harmonic Distortion DMMs
DIGITAL MULTIMETERS & SYSTEMS
33
2015, 2015-P,
Frequency Spectrum
Magnitude (dBV)
–20
–40
–60
–80
–100
–120
1.0kHz 1.1kHz 1.2kHz 1.3kHz 1.4kHz
Frequency
B
etween 1.0kHz and 1.4kHz
Maximum
2nd peak
3rd peak
4th peak
Maximum right of 4th peak
Maximum left of 4th peak
61⁄2-Digit THD Multimeters
2016, 2016-P
W
ide Band or Narrow Band Noise
Measurements
The Models 2015, 2015-P, 2016, and 2016-P 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 and 2016-P have internal
computational capabilities that allow them to
characterize an acquired signal spectrum. These
instruments 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 and 2016-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.
Audio Analyzing and Total Harmonic Distortion DMMs
61⁄2-Digit Audio Analyzing Multimeters
Figure 6. The Model 2015-P and 2016-P directly identify peak values of the frequency spectrum.
ACCESSORIES AVAILABLE
CABLES/ADAPTERS
7007-1 Shielded IEEE-488 Cable, 1m (3.3 ft)
7007-2 Shielded IEEE-488 Cable, 2m (6.6 ft)
8501-1, 8501-2 Trigger-Link Cables, 1m (3.3 ft), 2m (6.6 ft)
8502 Trigger Link Adapter Box
8503 Trigger Link Cable to 2 male BNCs,1m (3.3 ft)
7009-5 RS-232 Cable
RACK MOUNT KITS
4288-1 Single Fixed Rack Mount Kit
4288-2 Dual Fixed Rack Mount Kit
OTHER
KPC-TM Trigger Master Interface
KPC-488.2 IEEE-488.2 Interface Card for the ISA Bus
KPCI-488 IEEE-488 Interface/Controller for the PCI Bus
KUSB-488 IEEE-488.2 USB-to-GPIB Interface Adapter
TestPoint Test Development Software
1050 Padded Carrying Case
2015-EW 1 Year Warranty Extension
2015-P-EW 1 Year Warranty Extension
2016-EW 1 Year Warranty Extension
2016-P-EW 1 Year Warranty Extension
Rear panel of all models
(U.S. only)
1.888.KEITHLEY
DIGITAL MULTIMETERS & SYSTEMS
34
www.keithley.com
A GREATER MEASURE OF CONFIDENCE
2015, 2015-P,
61⁄2-Digit THD Multimeters
2016, 2016-P
ISTORTION CHARACTERISTICS
D
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.
ARMONIC FREQUENCY RANGE:40Hz–50kHz.
H
FREQUENCY RESOLUTION: 0.008Hz.
REQUENCY ACCURACY:±0.01% of reading.
F
REQUENCY TEMPERATURE COEFFICIENT:≤100ppm over operating temperature range.
F
EASUREMENT ACCURACY RESIDUAL
M
ODE (1 Year, 23°C ±5°C) DISTORTION
M
HD and individual ±0.8dB, 0.004% or –87dB
T
harmonic magnitudes 20Hz to 20kHz
THD + n ±1.5 dB, 0.056% or –65dB
SINAD ±1.5dB +
AC Level ±(0.13% of reading +
rms 0.009% of range)
V
100Hz to 20kHz
100Hz to 20kHz
20Hz to 20kHz
2
2
2
61⁄2-Digit Audio Analyzing Multimeters
20Hz to 20kHz
20Hz to 20kHz
65dB
20Hz to 20kHz
DISTORTION MEASUREMENT AUDIO FILTERS
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 brick-
wall bandpass filter.
DISTORTION MEASUREMENT READING RATE
FUNDAMENTAL MINIMUM
FREQUENCY FUNDAMENTAL READINGS
ACQUISITION FREQUENCY PER
MODE RANGE SECOND
Single acquisition 20 Hz to 100 Hz 14
or stored value 100 Hz to 1 kHz 24
Automatic 20 Hz to 30 Hz 5.5
FREQUENCY SWEEP READING RA
NUMBER OF FREQUENCIES TIME (seconds)
5
30 1.1
100 3.5
200
kHz to 20
1
30 Hz to 400 Hz
400 Hz to 20 kHz 6.6
TE
3
kHz 28
6
4
0.2
6.9
ENERATOR CHARACTERISTICS
G
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:
AVEFORM:Sinewave.
W
AMPLITUDE RANGE: 2015, 2015-P: 2V rms (50Ω and 600Ω) or 4V rms (HI Z).
1
AMPLITUDE RESOLUTION: 2015, 2015-P: 0.5mV rms (50Ω and 600Ω) or 1mV rms (HI Z).
MPLITUDE ACCURACY: 2015, 2015-P:±(0.3% of setting + 2mV)
A
AMPLITUDE TEMPERATURE COEFFICIENT: Typically 0.015%/°C.
AMPLITUDE FLATNESS: ±0.1dB
OUTPUT IMPEDANCE: 50Ω ±1Ω or 600Ω ±10Ω, user selectable.
T
NOISE: 2
DC OFFSET VOLTAGE: 2015, 2015-P: ±1.2mV1. 2016, 2016-P: ±3mV1.
HD:–64dB
6
.
INV/PULSE OUTPUT (SINEW
FREQUENCY: Same as source output.
AMPLITUDE RANGE: 2015, 2015-P: 2V rms (50Ω and 600Ω) or 4V rms (HI Z).
AMPLITUDE RESOLUTION: 2015, 2015-P: 0.5mV rms (50Ω and 600Ω) or 1mV rms (HI Z).
AMPLITUDE ACCURACY: 2015, 2015-P: ±(2.0% of setting + 2mV)
AMPLITUDE FLATNESS: ±0.1dB
OUTPUT IMPEDANCE: Same as Source Output setting.
THD: –64dB6.
NOISE: 2015, 2015-P: 100µV rms2.
DC OFFSET VOLTAGE: 2015, 2015-P: ±1.1mV typ., ±13mV max.
2016, 2016-P: 4.75V rms (50Ω and 600Ω) or 9.5V rms (HI Z).
016, 2016-P:1.25mV rms (50
2
016, 2016-P:±(0.3% of setting + 5mV)
2
1
, 4, 5
.
015, 2015-P:
016, 2016-P:250µV rms
2
100µV rms2.
nd 600Ω) or 2.5mV rms (HI Z).
Ω a
1, 4
.
1, 4
.
2
.
AVE MODE):
2016, 2016-P: 4.75V rms (50Ω and 600Ω) or 9.5V rms (HI Z).
2016, 2016-P: 1.25mV rms (50Ω and 600Ω) or 2.5mV rms (HI Z).
2016, 2016-P: ±(2.0% of setting + 5mV)
1, 4, 5
.
2016, 2016-P: 250µV rms2.
2016, 2016-P: ±3mV typ., ±13mV max.
1, 4
.
1, 4
.
1
1
Model 2015, 2015-P, 2016, 2016-P Specifications
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 ±
OVERSHOOT:1.0V
UNDERSHOOT:1.1V maximum
0.07V to 4.9V ±0.12V pulse open circuit
0.0V ±0.05V to 3.3V ±0.08V pulse 100
maximum pulse open circuit
0.2V maximum with 100
pulse open circuit
0.45V maximum with 100
3
.
Ω load pulse open circuit3.
3
.
Ω load pulse open circuit3.
Ω load
1, 3
.
1, 3
.
NOTES
1. Input signal at full scale.
2. V
≥20% of range and harmonics >–65dB.
IN
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 THDmeasurement plus AC voltage.
1.888.KEITHLEY
www.keithley.com
(U.S. only)
A GR
NOTES
1. 1 year, 23°C ±5°C.
Measured at V
2.
HI Z output impedance, and no load.
3.
With HI Z output impedance and 1m 50
Z output impedance, no load.
HI
4.
output.
4V
5.
6. THD measurement includes harmonics 2 through 5, 1V rms output, HI Z, no load.
TER M
EA
= 0V with gain 100 amplifi
OUT
EASU
er and 2-pole 50kHz low pass filter, Inv/Pulse in sinewave mode,
Ω coaxial cable.
RE OF CONFIDENCE
DIGITAL MULTIMETERS & SYSTEMS
35
2015, 2015-P,
61⁄2-Digit THD Multimeters
2016, 2016-P
C VOLTAGE
D
ANGE RESOLUTION 90 DAY 1 YEAR RESISTANCE
R
00.0000 mV 0.1 µV 40 + 35 50 + 35 > 10 G
1
.000000 V 1.0 µV 25 + 7 30 + 7 > 10 G
1
10.00000 V 10 µV 20 + 5 30 + 5 > 10 GΩ
100.0000 V 100 µV 30 + 6 45 + 6 10 MΩ ±1%
1000.000 V 1 mV 35 + 6 45 + 6 10 M
ACCURACY 23°C ± 5°C
(ppm of rdg. + ppm of range) INPUT
±
61⁄2-Digit Audio Analyzing Multimeters
RESISTANCE
ACCURACY 23°C ± 5°C
ANGE RESOLUTION 90 DAY 1 YEAR CURRENT
R
00.0000
1
Ω 1
.000000 k
1
Ω 1mΩ 8
0.00000 k
1
Ω 10mΩ 8
100.0000 k
Ω 100mΩ 80 + 10 100 + 10 10 µA
.000000 M
1
Ω 1 Ω 8
0.00000 M
1
Ω 10Ω 2
00.0000 M
1
Ω 100Ω 1
00 µ
±(ppm of rdg. + ppm of range) TEST
Ω 8
0 + 40 100 + 40 1 mA
0 + 10 100 + 10 1 mA
0 + 10 100 + 10 100 µA
0 + 10 100 + 10 10 µA
00 + 10 400 + 10 700 nA
500 + 30 1500 + 30 700 nA
DC CURRENT
ACCURACY 23°C ± 5°C
RANGE RESOLUTION 90 DAY 1 YEAR VOLTAGE
10.00000 mA 10 nA 300 + 80 500 + 80 < 0.15 V
100.0000 mA 100 nA 300 + 800 500 + 800 < 0.03 V
1.000000 A 1 µA 500 + 80 800 + 80 < 0.3 V
3.00000 A 10 µA 1200 + 40 1200 + 40 < 1 V
CONTINUITY 2W
Model 2015, 2015-P, 2016, 2016-P Specifications
RANGE RESOLUTION 90 DAY 1 YEAR CURRENT
1 kΩ 100 mΩ 100 + 100 120 + 100 1 mA
±(ppm of rdg. + ppm of range) BURDEN
ACCURACY 23°C ± 5°C
±(ppm of rdg. + ppm of range) TEST
DIODE TEST
ACCURACY 23°C ±5°C
RANGE RESOLUTION 90 DAY 1 YEAR CURRENT
3.00000 V 10 µV 30 + 7 40 + 7 1 mA
10.00000 V 10 µV 30 + 7 40 + 7 100 µA
10.00000 V
10 µV 30 + 7 40 + 7 10 µA
±(ppm of rdg. + ppm of range) TEST
DC OPERATING CHARACTERISTICS
UD):
RMS NOISE
55 / s.
DIGITS READINGS/s PLCs 10V RANGE NMRR CMRR
61⁄2 5 10 < 1.5 µV 60 dB 140 dB
1
⁄2 50 1 < 4 µV 60 dB 140 dB
6
51⁄2 500 0.1 < 22 µV — 80 dB
1
⁄2 2000 0.01 < 150 µV — 80 dB
4
3, 10
: <30 ms.
ATE:
2, 6
2000 / s.
YSTEM SPEEDS
DC S
RANGE CHANGE3: 50 / s.
FUNCTION CHANGE3: 45 / s.
ANGE TIME
UTOR
A
ASCII READINGS TO RS-232 (19.2K BA
MAX. INTERNAL TRIGGER R
MAX. EXTERNAL TRIGGER RATE: 400 / s.
Ω ±1%
RUE RMS AC VOLTAGE AND CURRENT CHARACTERISTICS
T
ANGE RESOLUTION RANGE ±(% of reading + % of range)
Ω
Ω
R
00 mV to 750 V 0.1 µV to 1 mV 3 Hz–10 Hz 0.35 + 0.03
1
FREQUENCY ACCURACY (I Year), 23°C ±5 °C
0 Hz–20 kHz 0.06 + 0.03
1
0 kHz–50 kHz 0.12 + 0.05
2
50 kHz–100 kHz 0.60 + 0.08
100 kHz–300 kHz 4 + 0.5
AC OPERATING CHARACTERISTICS
FUNCTION DIGITS READINGS/s RATE BANDWIDTH
ACV (all ranges), and 61⁄2 2s/reading SLOW 3 Hz–300 kHz
CI (all ranges) 6
A
1
⁄2 1
61⁄2 4
1
6
⁄2 2
1
6
⁄2 35 FAST 300 Hz–300 kHz
.4 MED 30 Hz–300 kHz
.8 MED 30 Hz–300 kHz
.2 FAST 300 Hz–300 kHz
FREQUENCY AND PERIOD CHARACTERISTICS
LUTION A
ACV FREQUENCY PERIOD GATE ±(ppm of 90 DAY/1 YEAR
RANGE RANGE RANGE TIME reading) ±(% of reading)
100 mV 3 Hz 333 ms 1 s (SLOW) 0.333 0.01
to to to 0.1 s (MED) 3.33 0.01
750 V 500 kHz 2 µs 10 ms (FAST) 33.3 0.01
RESO
CCURACY
FREQUENCY NOTES
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.
TEMPERATURE CHARACTERISTICS
THERMOCOUPLE 90 DAY/1 YEAR (23°C ± 5°C)
TYPE RANGE RESOLUTION Reference Junction 2001-TCSCAN
J –200 to + 760°C 0.001°C ±0.5°C ±0.65°C
K –200 to + 1372°C 0.001°C ±0.5°C ±0.70°C
T –200 to + 400°C 0.001°C ±0.5°C ±0.68°C
ACCURACY
Relative to USING
5
GENERAL SPECIFICATIONS
POWER SUPPLY: 100V / 120V / 220V / 240V ±10%.
LINE FREQUENCY: 45Hz to 66Hz, automatically sensed at power-up.
POWER CONSUMPTION: 22V
OPERATING ENVIRONMENT: Specified for 0°C to 50°C. Specified to 80% R.H. at 35°C.
STOR
AGE ENVIRONMENT
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 61000-3-
2, EN 61000-3-3, FCC part 15 class B.
WARMUP: 1 hour to rated accuracy.
DIMENSIONS:
149⁄16 in).
Bench Configuration (with handle and feet): 104mm high × 238mm wide × 370mm deep
(4
NET WEIGHT: 2.9kg (6.3 lbs).
SHIPPING WEIGHT: 5kg (11 lbs).
VOLT HERTZ PRODUCT: ≤ 8 × 107V·Hz.
ACCES
Rack Mounting:
1
⁄8 in × 93⁄8 in × 149⁄16 in).
SORIES SUPPLIED:
A.
–40
°
:
C to 70
°C.
89mm high × 213mm wide × 370mm deep (31⁄2 in × 83⁄8 in ×
Model 1751 Safety T
est Leads, User Manual.
36
1.888.KEITHLEY
DIGITAL MULTIMETERS & SYSTEMS
www.keithley.com
(U.S. only)
A GR
TER M
EA
EASU
RE OF CONFIDENCE
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