51⁄2 Digit Multimeters
51⁄2 Digit Multimeters
51⁄2 Digit Multimeters
NI 4050, NI 4060
• 51⁄2-digits
• 5 measurement modes
• ±300 VDC/Vrms maximum
• 200 M maximum (2 and 4-wire)
• 60 readings/s maximum
Models
• NI PCMCIA-4050
• NI PCI-4060
• NI PXI-4060
Operating Systems
• Windows 2000/NT/XP
Recommended Software
• LabVIEW
• LabWindows/CVI
• Measurement Studio
Other Compatible Software
• Visual Basic
• C/C++
Driver Software (included)
• NI-DMM
Calibration Certificate Included
See page 21.
Modular Instrumentation
Overview
The NI 4050 and NI 4060 devices are full-featured digital multimeters
(DMMs). They measure accurate 51⁄2-digit DC voltage and current,
True-rms AC voltage and current, and resistance measurements. The
NI PCMCIA-4050, with its size, weight, and low-power consumption,
is ideal for portable measurements and data logging with handheld
and notebook computers. NI 4060 DMMs are perfectly suited for use
in automated production test, portable field test, and benchtop
electronic test. Using NI 4060 DMMs with National Instruments
switching modules, such as PXI-2501, PXI-2503, SCXI-1127,
SCXI-1128, or SCXI-1129, you can measure thousands of channels,
consisting of voltages, thermocouples, RTDs, thermistors, and current
loops, and keep a firm control on the cost of your system.
Measuring Resistance
The NI 4050 and NI 4060 DMMs have five basic input ranges for
both 2 and 4-wire (NI 4060 only) resistance measurements, and an
extended range for 2-wire measurements. The basic ranges are
200 , 2 k , 20 k , 200 k , and 2 M . With extended range,
measurements up to 200 M are possible. The NI 4050 and NI 4060
DMMs use a common technique to measure resistance. The method
involves sending a current through the test resistor and measuring
the voltage drop across the resistor. In the extended ohms range, a
1 M resistor is added in parallel with the test resistor.
Hardware
Measuring Current
Reading Rates
For the PCMCIA-4050, use the optional CSM current-shunt accessories
to measure both AC and DC current. The CSM accessories include a
precision resistor that converts the current through the shunt into a
voltage measurable by the PCMCIA-4050. For measuring currents up to
200 mA or 10 A, use the CSM-200mA or the CSM-10A, respectively.
The NI 4060 DMMs have built-in current measurement
capability. Two input ranges exist for DC and True-rms AC current
measurements – 20 mA and 200 mA. For measuring currents
between 200 mA and 10 A, use the CSM-10A accessory.
NI 4050 and NI 4060 DMMs offer multiple reading rates determined
by your resolution, function, range selections, and powerline
rejection. The maximum reading rate is 60 reading/s, once the initial
setup time affecting the first reading is passed. Please contact your
National Instruments local sales representative for more information
regarding measurement performance in your specific application.
Measuring Voltages
The NI 4050 and NI 4060 DMMs have five input ranges available for
measuring DC voltages – 20 mV, 200 mV, 2 V, 25 V, and 250 V. Five
input ranges are available for measuring AC voltages – 20 mVrms,
200 mVrms, 2 Vrms, 25 Vrms, and 250 Vrms. The NI 4060 DMMs
measure AC voltages to the specified accuracy as long as the voltage
is within 10 percent of the selected input range. In AC voltage
428
ranges, the NI 4050 and NI 4060 DMMs measure the AC-coupled
True-rms value of a signal.
Diode Testing
The NI 4050 and NI 4060 DMMs measure the forward drop (up to
2 V) across a diode. The diode is biased with 100 µA current, and the
resulting voltage drop is measured. Diode measurements are made
with a fixed range of 2 V.
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
51⁄2 Digit Multimeters
The NI 4050 and NI 4060 DMMs are shipped with a calibration
certificate stating that the instrument was calibrated to NISTtraceable standards to the levels detailed in the specifications. These
DMMs can be returned to National Instruments or a qualified
metrology lab for calibration.
Cables and Probes
The NI 4060 DMMs have built-in shrouded banana jacks to prevent
exposure to potentially hazardous voltages on the test probes. The
DMM kits include the P-1 Probe Set – two 1 m test leads (red and
black) with test probes.
The P-2 Probe Set, sold separately, includes two 1 m test leads (red
and black) with shrouded banana plugs on one end and a variety of
optional terminals on the other – two alligator clips (red and black)
with boots, two spring hooks (red and black), and two spade
connectors (red and black).
The banana-plug-to-bare-wire kit is a pair of banana-to-bare wire
plugs (one red, one black) that permits you to connect your DMM to
screw terminals for channel expansion using matrices or scanners.
To connect your NI 4060 to SCXI scanners and matrices, special
cable kits are available (SCXI-1357 and SCXI-1358). Refer to page
498 for more information on switch cabling.
The probe sets meet IEC 1010 safety requirements and permit
direct probing of circuits and cables.
Front-End Signal Conditioning
AC
Front End
Input
True RMS AC
to DC Converter
DC
Front End
Ohms
Front End
Ohms Current Source
LO
Figure 1. Fundamental DMM Architecture
Processor and Display
Processor
ADC
Memory Software
The NI 4060 DMMs work with external multiplexer/matrix switches.
In particular, the NI 4060 devices have been designed to integrate
seamlessly with National Instruments switch offerings for SCXI and
PXI. Two signals, Voltmeter Complete Trigger Output and Trigger
Input, control the switches. Access to the signals is through two BNC
connectors on the auxiliary trigger cable. On PXI, you can access the
triggers through the PXI trigger bus.
Software
All National Instruments DMMs are shipped with NI-DMM driver
software. NI-DMM is an IVI-compliant driver that provides access to
the complete functionality of the DMM through an easy-to-use
application programming interface. NI-DMM also includes the
DMM Soft Front Panel (SFP). The DMM SFP is an interactive
executable that provides an easy way to test input signals or debug
your system. NI-DMM is optimized for use with NI LabVIEW,
LabWindows/CVI, and Measurement Studio, as well as Microsoft
Visual Basic and C/C++.
Ordering Information
NI PCMCIA-4050 ........................................................777186-01
Includes the PCMCIA-4050 card, P4-BJ2 cable, P-1 probe set, NI-DMM, the
DMM Soft Front Panel, and carrying case.
NI PCI-4060 ..................................................................777559-01
NI PXI-4060 ..................................................................777554-01
Includes the NI 4060 hardware, P-1 probe set, NI-DMM, and the DMM
Soft Front Panel.
For information on extended warranty and value added services, see page 20.
Power Supply
Cables and Accessories
Standard probe, P-1 probe set ......................................761000-01
Additional probe, P-2 probe set ..................................184698-01
Banana plug to bare wire, P-3 probe set
1 m, red and black (2 wires) ....................................185692-01
Auxiliary trigger cable for use with external
multiplexers 0.5 m..................................................184931-0R5
10 A current shunt, CSM-10A......................................777488-02
Visit ni.com for a more complete list of cables and accessories.
Modular Instrumentation
HI
A/D Conversion
Triggering for Switches (NI 4060 only)
51⁄2 Digit Multimeters
Calibration
BUY ONLINE!
Visit ni.com/products and enter pxi4060, pci4060, or pcmcia4050.
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
429
51⁄2 Digit Multimeters
51⁄2 Digit Multimeters
Specifications – NI 4060
Specifications are guaranteed between 15 and 35 °C unless otherwise noted.
Input Characteristics
DC Voltage (Accuracy % of Reading ± µV)
Input protection ................................................ Fuse F1 500 mA/250 V fast-fusing
Shunt resistor ................................................... 1 Ω
Burden voltage ................................................. < 400 mV at 200 mA AC
24 Hour
Range
(25 °C ± 1 °C)
1
250 V 0.0032% + 1.25 mV
25 V
0.0032% + 1 mV
2V
0.0029% + 10 µV
200 mV 0.0029% + 6 µV
20 mV
0.0029% + 6 µV
90 Day
(25 °C ± 10 °C)
0.021% + 1.25 mV
0.021% + 1 mV
0.014% + 10 µV
0.014% + 6 µV
0.014% + 6 µV
1 Year
(25 °C ± 10 °C)
0.024% + 1.25 mV
0.024% + 1 mV
0.017% + 10 µV
0.017% + 6 µV
0.017% + 6 µV
Temperature Coefficient
(% of Reading/°C + µV/°C)
0.0017% + 480 µV
0.0017% + 480 µV
0.0009% + 5 µV
0.0009% + 1 µV
0.0009% + 1 µV
1Overrange capabilities to 300 V
Accuracy numbers are for 51⁄2 digits with autozero on and include the effects of full-scale and zero-scale errors, temperature
variation, linearity, and noise.
Noise Rejection
NMRR ............................................................ 80 dB (10 Hz filter setting, 50/60 Hz powerline frequency ±1%)
DC ECMRR........................................................ 140 dB (with a 1 kΩ imbalance in HI lead)
AC ECMR (50/60 Hz) ........................................ 150 dB (with a 1 kΩ imbalance in HI lead)
Resistance (Accuracy % of Reading ± Ω)
Range
Extended
resistance
(> 2 MΩ)
2 MΩ5
200 kΩ
20 kΩ
2 kΩ
200 Ω
24 Hour
(25 °C ± 1 °C)
0.1% + 6 kΩ
90 Day
(25 °C ± 10 °C)
0.1% + 60 kΩ
1 Year
(25 °C ± 10 °C)
0.1% + 60 kΩ
Temperature Coefficient
(% of Reading/°C + µV/°C)
0.0072% + 6 kΩ
0.012% + 9 Ω
0.012% + 5 Ω
0.006% + 0.09 Ω
0.006% + 0.05 Ω
0.006% + 0.05 Ω
0.077% + 27 Ω
0.077% + 22 Ω
0.024% + 0.3 Ω
0.024% + 0.2 Ω
0.024% + 0.2 Ω
0.080% + 27 Ω
0.080% + 22 Ω
0.027% + 0.3 Ω
0.027% + 0.2 Ω
0.027% + 0.2 Ω
0.0072% + 2 Ω
0.0072% + 2 Ω
0.0020% + 0.02 Ω
0.0020% + 0.02 Ω
0.0020% + 0.02 Ω
5With
autozero on, or while scanning, and when large resistance with capacitive loads is measured, additional delay time is
required. Accuracy numbers are for 4-wire resistance mode, 51⁄2 digits with autozero on and include the effects of full-scale
and zero-scale errors, temperature variation, linearity, and noise.
Input Characteristics
Input bias current ............................................. 1 nA maximum
Input resistance................................................ >1 GΩ (2 V, 200 mV, 20 mV ranges); 1 MΩ (250 V, 25 V)
DC Current (Accuracy % of Reading ± µA)
Range
20 mA2
200 mA2
10 A2
24 Hour
(25 °C ± 1 °C)
0.015% + 10 µA
0.015% + 10 µA
0.11% + 1 mA
90 Day
(25 °C ± 10 °C)
0.039% + 10 µA
0.039% + 10 µA
0.035% + 2 mA
1 Year
(25 °C ± 10 °C)
0.042% + 10 µA
0.042% + 10 µA
0.035% + 2 mA
Temperature Coefficient
(% of Reading/°C + µV/°C)
0.0035%/°C + 1 µA/°C
0.0035%/°C + 1 µA/°C
0.007%/°C + 0.1 mA/°C
2Requires 10 A shunt, CSM-10A
Accuracy numbers are for 51⁄2 digits with autozero on and include the effects of full-scale and zero-scale errors, temperature
variation, linearity, and noise.
2 or 4-wire
2-wire only
10 Ω (200 Ω range), 1 kΩ (all other ranges)
0.6 Ω
Diode Testing (Accuracy % of Reading ± µV)
Range
2V
24 Hour
(25 °C ± 1 °C)
0.006% + 7 µV
90 Day
(25 °C ± 10 °C)
0.024% + 22 µV
Test current....................................................... 100 µA
Input protection ................................................ Fuse F1 500 mA/250 V fast-fusing
Shunt resistor ................................................... 1 Ω
Burden voltage ................................................. <400 mV at 200 mA DC
General Specifications
Range
250 V3
25 V
2V
200 mV
20 mV
24 Hour
(25 °C ± 1 °C)
0.6% + 250 mV
0.16% + 30 mV
0.28% + 3 mV
0.16% + 0.22 mV
0.28% + 100 µV
90 Day
(25 °C ± 10 °C)
0.62% + 680 mV
0.18% + 210 mV
0.30% + 21 mV
0.18% + 1.20 mV
0.30% + 170 µV
1 Year
(25 °C ± 10 °C)
0.62% + 680 mV
0.18% + 210 mV
0.30% + 21 mV
0.18% + 1.20 mV
0.30% + 170 µV
Temperature Coefficient
(% of Reading/°C + µV/°C)
0.007% + 20 mV
0.007% + 20 mV
0.019% + 2 mV
0.007% + 0.110 mV
0.019% + 12 µV
3Overrange
capabilities to 300 V
Accuracy numbers are for 51⁄2 digits and include the effects of full-scale and zero-scale errors, temperature variation, linearity,
and noise. Applies for sine waves ≥ 10% of input range. Accuracy may be affected by source impedance, cable capacitances,
dielectric absorption, or slew rate.
1 Year
(25 °C ± 10 °C)
0.027% + 22 µV
Temperature Coefficient
(% of Reading/°C + µV/°C)
0.0020% + 2 µV
Accuracy numbers are for 51⁄2 digits with autozero on and include the effects of full and zero-scale errors, temperature
variation, linearity, and noise.
Input Characteristics
AC Voltage (Accuracy % of Reading ± mV)
Modular Instrumentation
Measurement modes
Resistance .................................................
Extended ohms ..........................................
Maximum lead resistance................................
Additional error for 2-wire resistance .............
Settling time..................................................... Affected by source impedance and input signal changes.
Warm-up time .................................................. 30 minutes for measurements accurate within specifications.
Altitude ............................................................ Up to 2,000 m; at higher altitudes the installation category
must be derated.
Working voltage ............................................... 300 V maximum between either input terminal and
earth ground
Power Requirement
+5 VDC ............................................................ 250 mA in operational mode
Physical
Dimensions
PCI ............................................................ 10.8 by 17.5 cm (4.25 by 6.9 in.)
PXI ............................................................ 10 by 16 cm (3.9 by 6.33 in.)
Environment
Noise Rejection
Input Characteristics
Operating temperature..................................... 0 to 55 °C
Storage temperature ........................................ -20 to 70 °C
Relative humidity ............................................. 10 to 90%, noncondensing
Input resistance................................................ 1 MΩ
Bandwidth ........................................................ 20 Hz - 25 kHz
Certifications and Compliances
AC CMRR (50/60 Hz) ....................................... >80 dB (with a 1 kΩ imbalance in HI lead)
CE Mark Compliance
Additional AC Errors
Frequency-dependent errors
Input Frequency
Additional Error (% of reading)
20 Hz - 50 Hz
2.5%
50 Hz - 100 Hz
0%
100 Hz - 20 kHz
1%
20 Hz - 25 kHz
2.5%
The product meets applicable EU directives for CE Mark compliance as follows:
Safety compliance IEC1010-1 Certified, Designed for UL 3111
Low-Voltage Directive EN 61010-1, Installation Category II, Pollution Degree 2, Double Insulated, Indoor use.
AC Current (Accuracy % of Reading ± mA)
Range
20 mA4
200 mA4
10 A4
24 Hour
(25 °C ± 1 °C)
0.30% + 100 µA
0.18% + 0.22 mA
0.3% + 22 mA
90 Day
(25 °C ± 10 °C)
0.32% + 170 µA
0.20% + 1.2 mA
0.32% + 120 mA
1 Year
(25 °C ± 10 °C)
0.32% + 170 µA
0.20% + 1.2 mA
0.32% + 120 mA
Temperature Coefficient
(% of Reading/°C + µV/°C)
0.022% + 12 µA
0.009% + 0.110 mA
0.026% + 11 mA
4Requires 10 A shunt, CSM-10A
Accuracy numbers are for 51⁄2 digits and include the effects of full-scale and zero-scale errors, temperature variation,
linearity, and noise.
430
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