Tektronix DMM4050, DMM4040 Service Manual
DMM4040 and DMM4050
Digital Multimeter
077-0362-01
Technical Reference
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix
or its subsidiaries or suppliers, and are protected by national copyright laws and international
treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in
this publication supersedes that in all previously published material. Specifications and price
change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix, Inc.
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
- In North America, call 1-800-833-9200.
- Worldwide, visit www.tektronix.com
to find contacts in your area.
Table of Contents
Chapter Title Page
1 Introduction and Specifications ......................................................... 1-1
Introduction ........................................................................................................ 1-3
General Safety Summary ................................................................................... 1-4
To Avoid Fire or Personal Injury .............................................................. 1-4
Symbols and Terms ................................................................................... 1-7
Safety and Electrical Symbols .................................................................. 1-7
Description of IEC 61010 Measurement Categories ................................. 1-8
Organization of the Calibration Manual ............................................................ 1-8
Chapter 1 – Introduction and Specifications ................................................. 1-9
Chapter 2 – General Maintenance ................................................................. 1-9
Chapter 3 – Performance Test and Calibration.............................................. 1-9
Operating Instructions ........................................................................................ 1-9
Accessories ........................................................................................................ 1-9
General Specifications ....................................................................................... 1-11
Power ............................................................................................................. 1-11
Dimensions .................................................................................................... 1-11
Display ........................................................................................................... 1-11
Environment .................................................................................................. 1-11
Triggering ...................................................................................................... 1-11
Memory ......................................................................................................... 1-11
Math Functions .............................................................................................. 1-11
Electrical ........................................................................................................ 1-12
Remote Interfaces .......................................................................................... 1-12
Warranty ........................................................................................................ 1-12
Electrical Specifications .................................................................................... 1-12
DC Voltage Specifications ............................................................................ 1-12
Input Characteristics .................................................................................. 1-12
4050 Accuracy .......................................................................................... 1-13
4040 Accuracy .......................................................................................... 1-13
Additional Errors ....................................................................................... 1-13
AC Voltage Specifications ............................................................................ 1-13
Input Characteristics .................................................................................. 1-14
4040/4050 Accuracy ................................................................................. 1-14
Additional Low Frequency Errors............................................................. 1-15
Resistance ...................................................................................................... 1-15
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Technical Reference
DC Current .................................................................................................... 1-16
AC Current .................................................................................................... 1-18
Frequency ...................................................................................................... 1-20
Capacitance (4050 only) ................................................................................ 1-21
Temperature (4050 only) ............................................................................... 1-21
Additional Errors ........................................................................................... 1-21
Continuity ...................................................................................................... 1-21
Diode Test ..................................................................................................... 1-22
Measurement Rates (IEEE488[4]) ................................................................. 1-22
Measurement Uncertainty .................................................................................. 1-22
Interpreting Accuracy Specifications ................................................................. 1-23
24-Hour Accuracy ......................................................................................... 1-23
90-Day and 1-Year Accuracy ........................................................................ 1-23
Temperature Coefficients .............................................................................. 1-23
Configuring for Highest Accuracy Measurements ............................................ 1-23
DC Voltage, DC Current, and Resistance Measurements ............................. 1-23
AC Voltage and AC Current Measurements: ................................................ 1-23
Frequency and Period Measurements: ........................................................... 1-23
Input Characteristics .................................................................................. 1-15
4040/4050 Accuracy ................................................................................. 1-16
Additional Ohms Errors ............................................................................ 1-16
Input Characteristics .................................................................................. 1-16
Accuracy (4040/4050) ............................................................................... 1-17
Additional Current Errors ......................................................................... 1-17
Input Characteristics .................................................................................. 1-18
4040/4050 Accuracy ................................................................................. 1-19
Additional Low Frequency Errors............................................................. 1-20
4040/4050 Accuracy ................................................................................. 1-20
Gate Time vs. Resolution .......................................................................... 1-20
Additional Low Frequency Errors............................................................. 1-20
2 General Maintenance .......................................................................... 2-1
Introduction ........................................................................................................ 2-3
Warranty Repairs and Shipping Information ..................................................... 2-3
General Maintenance Information ..................................................................... 2-3
Required Equipment ...................................................................................... 2-3
Power Requirements ...................................................................................... 2-3
Static Safe Handling ...................................................................................... 2-3
Cleaning ............................................................................................................. 2-4
Fuse Replacement .............................................................................................. 2-4
Line-Power Fuse ............................................................................................ 2-4
Current-Input Fuses ....................................................................................... 2-5
If the Meter Does Not Turn On .......................................................................... 2-7
Display Tests ...................................................................................................... 2-7
Disassembly Procedures .................................................................................... 2-7
General Disassembly ..................................................................................... 2-7
Main Chassis Disassembly ............................................................................ 2-8
Front Panel Disassembly ............................................................................... 2-8
Assembly Procedures ......................................................................................... 2-8
3 Performance Test and Calibration ..................................................... 3-1
Introduction ........................................................................................................ 3-4
Required Equipment .......................................................................................... 3-4
Test Considerations ............................................................................................ 3-6
ii
Contents (continued)
Performance Tests .............................................................................................. 3-6
Volts DC Verification .................................................................................... 3-6
Volts DC Ratio Verification .......................................................................... 3-10
Volts AC and Frequency Verification ........................................................... 3-12
4-Wire Ohms Verification ............................................................................. 3-15
2-Wire Ohms Verification ............................................................................. 3-17
2X4 Test Lead Verification Steps ................................................................. 3-18
Rear Panel Terminal Verification Steps ........................................................ 3-19
Capacitance Verification Steps (DMM4050 only) ........................................ 3-21
DC Current Verification Steps ...................................................................... 3-23
AC Current Verification Steps ...................................................................... 3-25
Adjustment (Calibration) ................................................................................... 3-27
Unlocking the Meter for Adjustments (Calibration) ..................................... 3-27
Unlocking the Meter for Adjustments Over a Remote Interface ................... 3-27
Changing the Calibration Password .............................................................. 3-27
Resetting the Calibration Password ............................................................... 3-28
Changing the Calibration Date ...................................................................... 3-29
Equipment for Calibration ............................................................................. 3-29
Adjustment Process ....................................................................................... 3-29
Aborting a Calibration Process ...................................................................... 3-35
Sample Adjustment Program ......................................................................... 3-35
Appendices
A Verification Forms ...................................................................................... A-1
B Example Adjustment Program .................................................................... B-1
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iv
List of Tables
Table Title Page
1-1. Accessories ............................................................................................................. 1-9
2-1. Line Voltage to Fuse Rating................................................................................... 2-5
3-1. Required Test Equipment ....................................................................................... 3-4
3-2. DMM4050 DC Volts Verification Steps ................................................................ 3-8
3-3. DMM4040 DC Volts Verification Steps ................................................................ 3-9
3-4. DMM4050 DC Volts Ratio Verification Steps ...................................................... 3-11
3-5. DMM4040 DC Volts Ratio Verification Steps ...................................................... 3-11
3-6. DMM4040/4050 AC Volts Verification Steps ....................................................... 3-13
3-7. DMM4040/4050 AC Volts Frequency Verification Steps ..................................... 3-14
3-8. DMM4040/4050 4-Wire Ohms Verification Steps ................................................ 3-16
3-9. DMM4040/4050 2-Wire Ohms Verification Steps ................................................ 3-18
3-10. DMM4050 Rear-Panel Terminal Verification Steps (Optional Test) .................... 3-20
3-11. DMM4040 Rear-Panel Terminal Verification Steps (Optional Test) .................... 3-20
3-12. DMM4050 Capacitance Verification Steps ........................................................... 3-22
3-13. DMM4040/4050 DC Current Verification Steps ................................................... 3-24
3-15. DMM4040/4050 Adjustment Steps ....................................................................... 3-29
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DMM4040 and DMM4050
Technical Reference
vi
List of Figures
Figure Title Page
1-1. IEC 61010 Measurement Category (CAT) Levels ................................................. 1-8
2-1. Line Fuse Replacement .......................................................................................... 2-5
2-2. Current Input Fuse Replacement ............................................................................ 2-6
3-1. DC Volts Test Equipment Setup with 5520A ........................................................ 3-7
3-2. DC Volts Ratio Test Equipment Setup with 5520A and 5720A ............................ 3-10
3-3. AC Volts Test Equipment Setup with 5520A ........................................................ 3-12
3-4. 4-Wire Ohms Test Equipment Setup ..................................................................... 3-15
3-5. 2-Wire Ohms Test Equipment Setup ..................................................................... 3-17
3-6. Rear-Panel Terminals Equipment Setup ................................................................ 3-19
3-7. Capacitance Equipment Setup ................................................................................ 3-21
3-8. 100 mA DC Current Equipment Setup .................................................................. 3-23
3-9. AC Current Equipment Setup ................................................................................ 3-25
3-10. Calibration Jumper Location .................................................................................. 3-28
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DMM4040 and DMM4050
Technical Reference
viii
Chapter 1
Introduction and Specifications
Title Page
Introduction ........................................................................................................ 1-3
General Safety Summary ................................................................................... 1-4
Organization of the Calibration Manual ............................................................ 1-8
Chapter 1 – Introduction and Specifications ................................................. 1-9
Chapter 2 – General Maintenance ................................................................. 1-9
Chapter 3 – Performance Test and Calibration.............................................. 1-9
Operating Instructions ........................................................................................ 1-9
Accessories ........................................................................................................ 1-9
General Specifications ....................................................................................... 1-10
Power ............................................................................................................. 1-10
Dimensions .................................................................................................... 1-10
Display ........................................................................................................... 1-10
Environment .................................................................................................. 1-10
Triggering ...................................................................................................... 1-10
Memory ......................................................................................................... 1-10
Math Functions .............................................................................................. 1-10
Electrical ........................................................................................................ 1-11
Remote Interfaces .......................................................................................... 1-11
Warranty ........................................................................................................ 1-11
Electrical Specifications .................................................................................... 1-11
DC Voltage Specifications ............................................................................ 1-11
AC Voltage Specifications ............................................................................ 1-
Resistance ...................................................................................................... 1-14
DC Current .................................................................................................... 1-15
AC Current .................................................................................................... 1-17
Frequency ...................................................................................................... 1-19
Capacitance (4050 only) ................................................................................ 1-20
Temperature (4050 only) ............................................................................... 1-20
Additional Errors ........................................................................................... 1-20
Continuity ...................................................................................................... 1-20
Diode Test ..................................................................................................... 1-21
Measurement Rates (IEEE488[4]) ................................................................. 1-21
Measurement Uncertainty .................................................................................. 1-21
Interpreting Accuracy Specifications ................................................................. 1-22
24-Hour Accuracy ......................................................................................... 1-22
12
1-1
DMM4040/4050
Technical Reference Manual
Configuring for Highest Accuracy Measurements ............................................ 1-22
90-Day and 1-Year Accuracy ........................................................................ 1-22
Temperature Coefficients .............................................................................. 1-22
DC Voltage, DC Current, and Resistance Measurements ............................. 1-22
AC Voltage and AC Current Measurements: ................................................ 1-22
Frequency and Period Measurements: ........................................................... 1-22
1-2
Introduction and Specifications
Introduction 1
Introduction
The DMM4040 and 4050 are 6-1/2 digit, dual-display multimeters designed for
bench-top, field service, and system applications. Their full complement of measurement
functions plus its RS-232, IEEE 488, and Ethernet Remote Interfaces makes these
multimeters ideal candidates for precision manual measurements and use in automated
systems. For portability, these multimeters include a carrying handle that also serves as a
bail for bench top operation.
There are a few additional features in the DMM4050 that are not present in the
DMM4040. These features will be identified with the annotation of “4050 Only” by each
feature that is found only in that model. Separate specification tables are also used to
clarify the differences between these two models.
The following is a list of some of the features and functions:
• Bright, large-digit, wide-viewing-angle display
• Dual display for displaying two properties of an input signal (e.g., ac voltage in one
display and frequency in the other).
• Remote operation via IEEE 488, RS-232, and Ethernet interface.
• Trigger in and measurement-complete out
• Front panel USB port for optional memory
• 6-1/2 digit resolution
• Half-rack width
• True rms ac
• 2 and 4-wire resistance measurements
• Extended 10 Ω and 1 GΩ ranges
• Frequency measurements to 1 MHz
• Capacitance measurements (4050 only)
• Temperature measurement (4050 only)
• 10 A current capability
• Decibels (dB and dBm) with variable reference impedance and audio power
measurement capability
• Input terminals on both front and rear panels of the meter
• Closed-case calibration (no internal calibration adjustments)
This technical reference manual focuses on performance verification and calibration of
the Tektronix DMM4040 and 4050 Digital Multimeters (hereafter referred to as the
Meter).
1-3
DMM4040/4050
Technical Reference Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to this
product or any other products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system. Read the
safety sections of the other component manuals for warnings and cautions related to
operating the system.
This instrument has been designed and tested in accordance with the European standard
publication EN 61010-1:2001 and U.S./Canadian standard publications UL 61010-1 and
CAN/CSA-C22.2 No.61010-1-04. The instrument has been supplied in a safe condition.
This manual contains information and warnings that must be observed to keep the
instrument in a safe condition and ensure safe operation.
To use the instrument correctly and safely, read and follow the precautions in this section
and follow all the safety instructions or warnings given throughout this manual that relate
to specific measurement functions. In addition, follow all generally accepted safety
practices and procedures required when working with and around electricity.
CAT I equipment is designed to protect against transients from high-voltage, low-energy
sources, such as electronic circuits or a copy machine.
CAT II equipment is designed to protect against transients from energy-consuming
equipment supplied from the fixed installtion, such as TVs, PCs, portable tools, and other
houseshold appliances.
To Avoid Fire or Personal Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Use Proper Voltage Setting. Before applying power, ensure that the line selector is in
the proper position for the source being used.
Connect and Disconnect Properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding conductor of the
power cord. To avoid electric shock, the grounding conductor must be connected to earth
ground. Before making connections to the input or output terminals of the product, ensure
that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings information
before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that exceeds the
maximum rating of that terminal.
1-4
Power Disconnect. The power cord disconnects the product from the power source. Do
not block the power cord; it must remain accessible to the user at all times.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Introduction and Specifications
General Safety Summary 1
Do Not Operate With Suspected Failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Avoid Exposed Circuitry. Do not touch exposed connections and components when
power is present.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Keep Product Surfaces Clean and Dry.
Warning
To avoid possible electric shock, personal injury, or death, read
the following before using the Meter.
• Use the Meter only as specified in this manual, or the
protection provided by the Meter might be impaired.
• Do not use the Meter in wet environments.
• Inspect the Meter before using it. Do not use the Meter if it
appears damaged.
• Inspect the test leads before use. Do not use them if
insulation is damaged or metal is exposed. Check the test
leads for continuity. Replace damaged test leads before
using the Meter.
• Verify the Meter's operation by measuring a known voltage
before and after using it. Do not use the Meter if it operates
abnormally. Protection may be impaired. If in doubt, have
the Meter serviced.
• Whenever it is likely that safety protection has been
impaired, make the Meter inoperative and secure it against
any unintended operation.
• Servicing of the Meter should be performed by qualified
service personnel.
• Do not apply more than the rated voltage, as marked on the
Meter, between the terminals or between any terminal and
earth ground.
• While in IEC Measurement Category II environments, do not
apply voltages above 600 V ac to the input of the Meter. See
“Description of IEC 61010 Measurement Categories” later in
this manual.
• Always use the power cord and connector appropriate for
the voltage and outlet of the country or location in which
you are working.
• Always use a power cord with a ground connection and
ensure the ground is properly connected to the power
distribution system.
• Remove test leads from the Meter before opening the case.
• Never remove the cover or open the case of the Meter
without first removing it from the main power source.
1-5
DMM4040/4050
Technical Reference Manual
• Use caution when working with voltages above 30 V ac rms,
• Use only the replacement fuse(s) specified by the manual.
• Use the proper terminals, function, and range for your
• Do not operate the Meter around explosive gas, vapor, or
• When using probes, keep your fingers behind the finger
• When making electrical connections, connect the common
• Disconnect circuit power and discharge all high-voltage
42 V ac peak, or 42 V dc. These voltages pose a shock
hazard.
measurements.
dust.
guards.
test lead before connecting the live test lead; when
disconnecting, disconnect the live test lead before
disconnecting the common test lead.
capacitors before testing resistance, continuity, diodes, or
capacitance.
• Before measuring current, check the Meter's fuses and turn
OFF power to the circuit before connecting the Meter to the
circuit.
• When servicing the Meter, use only specified replacement
parts.
• To prevent damage to the Meter, do not change the position
of the Front/Rear switch while signals are applied to either
the front or rear input terminals.
1-6
Introduction and Specifications
Symbols and Terms
The following terms and safety and electrical symbols may appear in the manual or on
the product:
A Warning statement identifies conditions or practices that could result in injury
or death.
A Caution statement identifies conditions or practices that could result in damage to
the Meter or equipment to which it is connected.
Warning
To avoid electric shock, personal injury, or death, carefully read
the information under “General Safety Summary” before
attempting to install, use, or service the Meter.
Safety and Electrical Symbols
Symbol Description Symbol Description
General Safety Summary 1
Risk of danger. Important
information. See manual.
Hazardous voltage. Voltage > 30 V
dc or ac peak might be present.
AC (Alternating Current)
DC (Direct Current)
or
AC or DC (Alternating or Direct
Current)
Continuity test or continuity beeper
tone
Potentially hazardous voltage
Double insulat ed
Measurement Category II is for
CAT II
measurements performed on
circuits directly connected to the
low voltage installation.
CAT I
Display ON / OFF and Meter reset.
Earth ground
Capacitance
Diode
Fuse
Y
Digital signal
Maintenance or Service
Static awareness. Static discharge
can damage parts.
Measurement Category I is for
measurements not directly
connected to mains.
1-7
DMM4040/4050
Technical Reference Manual
Description of IEC 61010 Measurement Categories
The IEC 61010 safety standard defines four Overvoltage (Installation) Categories (CAT I
to CAT IV) based on the magnitude of danger from transient impulses as shown in Figure
1-1.
Figure 1-1. IEC 61010 Measurement Category (CAT) Levels
The IEC 61010 Measurement CAT level indicates the level of protection the instrument
provides against impulse withstand voltage.
CAT I equipment is designed to protect against transients from high-voltage, low-energy
sources, such as electronic circuits or a copy machine.
CAT II equipment is designed to protect against transients from energy-consuming
equipment supplied from the fixed installation, such as TVs, PCs, portable tools, and
other household appliances.
CAT III equipment is designed to protect against transients in equipment in fixed
equipment installations, such as distribution panels, feeders and short branch circuits, and
lighting systems in large buildings.
CAT IV equipment is designed to protect against transients from the primary supply
level, such as an electricity meter or an overhead or underground utility service.
Organization of the Calibration Manual
This calibration manual is divided into the following chapters:
cat_levels.eps
1-8
Introduction and Specifications
Operating Instructions 1
Chapter 1 – Introduction and Specifications
This chapter introduces the Tektronix DMM4040 and 4050 Digital Multimeters,
describing their features, and accessories. This chapter also discusses use of the
Calibration Manual and the various conventions used in describing the meter’s circuitry
and presents a complete set of specifications.
Chapter 2 – General Maintenance
Chapter 2 provides maintenance information covering handling, cleaning, and fuse
replacement. Access and reassembly procedures are also explained in this chapter.
Chapter 3 – Performance Test and Calibration
This chapter provides performance verification procedures related to the specifications
presented in Chapter 1. To maintain these specifications, a full adjustment/calibration
procedure is also presented.
Operating Instructions
Full operating instructions are provided in the Tektronix DMM4040/4050 Users Manual.
Reference to these instructions may be necessary during some of the maintenance and
repair procedures presented in this Calibration Manual.
Accessories
Table 1-1 lists the available accessories for the DMM4040 and 4050.
Table 1-1. Accessories
Model / Part
Number
TL710
196-3520-00
TP750 100 Ohm RTD Temperature Probe (DMM4050 only)
013-0369-00 Calibration fixture; 4 terminal shor ting bar
Y8846S Rack Mount Kit Single
Y8846D Rackmount Kit Dual
TL705 2X4 Wire Ohm Precision Test Leads
TL725 2X4 Wire Ohm Tweezers Test Leads
159-0487-00 F2, Fuse, 440 mA, 1000 V, Fast, .406X 1.375, Bulk
159-0488-00 F1, Fuse, 11 A, 1000 V, Fast, .406INX1.5IN, Bulk
174-5813-00 USB to RS-232 cable assembly
Premium Test Lead Set
Description
012-0991-01 GPIB cable; Low EMI; 1 meter
159-0187-00 Fuse, 0.25 A, 250 V AC, slow blow
159-0063-00 Fuse, 0.125 A, 250 V, slow blow
HCTEK4321 Hard case, plastic
AC4000 Soft case, nylon
1-9
DMM4040/4050
Technical Reference Manual
General Specifications
Power
Voltage
100 V Setting ...................................................... 90 V to 110 V
120 V Setting ...................................................... 108 V to 132 V
220 V Setting ...................................................... 198 V to 242 V
240 V Setting ...................................................... 216 V to 264 V
Frequency ............................................................... 47 Hz to 440 Hz. Automatically sensed at power-on.
Power Consumption................................................ 28 VA peak (12 Watt average)
Dimensions
Height ...................................................................... 88 mm (3.46 in.)
Width ....................................................................... 217 mm (8.56 in.)
Depth ...................................................................... 297 mm (11.7 in.)
Weight ..................................................................... 3.6 kg (8.0 lb)
Shipping Weight ...................................................... 5.0 kg (11.0 lb)
Display
Vacuum Fluorescent Display, dot matrix
Environment
Temperature
Operating ............................................................ 0 °C to 55 °C
Storage ............................................................... -40 °C to 70 °C
Warm Up ............................................................. 1 hour to full uncertainty specifications
Relative Humidity (non-condensing)
Operating ............................................................ 0 °C to 28 °C <90 %
Storage ............................................................... -40 °C to 70 °C <95 %
Altitude
Operating ............................................................ 2,000 Meters
Storage ............................................................... 12,000 Meters
Vibration and Shock ................................................ Complies with MIL-PRF-28800F Class 3.
28 °C to 40 °C <80 %
40 °C to 55 °C <50 %
Triggering
Samples per Trigger ........................................... 1 to 50,000
Trigger Delay ...................................................... 0 s to 3600 s; in 10 µS increments
External Trigger Delay ........................................ <1 mS
External Trigger Jitter ......................................... <500 µS
Trigger Input ....................................................... TTL Levels
Trigger Output ..................................................... 5 V maximum (open collector)
Memory
10,000 measurements, internal, and up to 2 Gigabyte capacity with USB memory module (available separately) through
front-panel USB port
1-10
Math Functions
Zero, dBm, dB, MX+B, Offset, DCV ratio and TrendPlot, Histogram, Statistics (min/max/average/standard deviation), and
Limit Test
Introduction and Specifications
Resolution
4½ Digits
5½ Digits
6½ Digits
100 mV
100.0000 mV
10 µV
1 µV
100 nV
10 MΩ or >10 GΩ
[1]
100 µV
10 µV
1 µV
10 MΩ or >10 GΩ
[1]
10 V
10.00000 V
1 mV
[1]
100 V
100.0000 V
10 mV
1 mV
100 µV
10 MΩ ±1%
10 MΩ ±1%
Electrical Specifications 1
Electrical
Input Protection ....................................................... 1000 V all ranges
Overrange ............................................................... 20 % on all ranges except 1000 V dc, 1000 V ac
Diode, and 10 A ranges
Remote Interfaces
RS-232C, DTE 9-pin, 1200 to 230400 baud (RS-232C to USB cable available to connect the Meter to a PC USB port.
See Accessories)
IEEE 488.2
LAN and “Ethernet 10/100 base T with DHCP (for IP_ADDRess) option”
Warranty
Three years
Electrical Specifications
Accuracy specifications are valid for 6½ digit resolution mode after at least a 1-hour warm-up with Auto Zero enabled.
24-hour specifications are relative to calibration standards and assume a controlled electromagnetic environment per
EN 61326-1:2000-11
DC Voltage Specifications
Maximum Input ....................................................... 1000 V on any range
Common Mode Rejection ....................................... 140 dB at 50 or 60 Hz ±0.1 % (1 kΩ unbalance)
Normal Mode Rejection .......................................... 60 dB for NPLC of 1 or greater with analog filter off and power line
Measurement Method ............................................. Multi-ramp A/D
A/D Linearity ........................................................... 0.0002 % of measurement +0.0001 % of range
Input Bias Current ................................................... <30 pA at 25 °C
Autozero Off Operation ........................................... Following instrument warm-up at calibration temperature ±1 °C and
Analog Filter ............................................................ When using the analog filter, specifications are relative to within one
DC Ratio ................................................................. Accuracy is +/- (Input accuracy + Reference accuracy), where Input
Settling Considerations ........................................... Measurement settling times are affected by source impedance, cable
frequency ±0.1 %
100 dB for NPLC of 1 or greater with analog filter on and power line
frequency ±0.1 %
less than 10 minutes, add error: 0.0002 % range additional error
+5 µV.
hour of using the ZERO function for that range and NPLC setting.
accuracy = DC Voltage accuracy for the HI to LO Input (in ppm of the
Input voltage), and Reference accuracy = DC Voltage accuracy for the
HI to LO (Sense) Reference (in ppm of the Reference voltage).
dielectric characteristics, and input signal changes.
Input Characteristics
Range Resolution
1 V 1.000000 V
100 µV 10 µV 10 MΩ or >10 GΩ
1000 V 1,000.000 V 100 mV 10 mV 1 mV
[1] Inputs beyond ±14 V are clamped through 200 kΩ typical. 10 MΩ is default input impedance.
Input Impedance
1-11
DMM4040/4050
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
100 mV
0.0025 + 0.003
0.0025 + 0.0035
0.0037 + 0.0035
0.0005 + 0.0005
1 V
0.0018 + 0.0006
0.0018 + 0.0007
0.0025 + 0.0007
0.0005 + 0.0001
10 V
0.0013 + 0.0004
0.0018 + 0.0005
0.0024 + 0.0005
0.0005 + 0.0001
100 V
0.0018 + 0.0006
0.0027 + 0.0006
0.0038 + 0.0006
0.0005 + 0.0001
1000 V
0.0018 + 0.0006
0.0031 + 0.001
0.0041 + 0.001
0.0005 + 0.0001
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
100 mV
0.003 + 0.003
0.004 + 0.0035
0.005 + 0.0035
0.0005 + 0.0005
1 V
0.002 + 0.0006
0.003 + 0.0007
0.004 + 0.0007
0.0005 + 0.0001
10 V
0.0015 + 0.0004
0.002 + 0.0005
0.0035 + 0.0005
0.0005 + 0.0001
100 V
0.002 + 0.0006
0.0035 + 0.0006
0.0045 + 0.0006
0.0005 + 0.0001
1000 V
0.002 + 0.0006
0.0035 + 0.0010
0.0045 + 0.0010
0.0005 + 0.0001
Digits
NPLC
Additional NPLC Noise Error
6½
100
0 % of range
5½
1
0.001 % of range
5½
.2
4½
0.02
0.017 % of range +17 µV
Technical Reference Manual
4050 Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
24 Hour
(23
C)
90 Days
(23
C)
4040 Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
24 Hour
(23
C)
90 Days
(23
C)
Additional Errors
1 Year
(23
1 Year
(23
C)
C)
Coefficient/ °C
Coefficient/ °C
6½ 10 0 % of range
0.0025 % of range +12 µV
AC Voltage Specifications
AC Voltage specifications are for ac sinewave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz,
add an additional error of 0.1 % of range, and for 50 kHz to 100 kHz, add 0.13 % of range.
Maximum Input ....................................................... 1000 V rms or 1414 V peak or 8 x 10
less) for any range.
Measurement Method ............................................. AC-coupled true-rms. Measures the ac component of input with up to
1000 V dc bias on any range.
AC Filter Bandwidth:
Slow .................................................................... 3 Hz – 300 kHz
Medium ............................................................... 20 Hz – 300 kHz
Fast ..................................................................... 200 Hz – 300 kHz
Common Mode Rejection ....................................... 70 dB at 50 Hz or 60 Hz ±0.1 % (1 kΩ unbalance)
Crest Factor Error (applies to non-sinusoidal waveforms only)
Maximum Crest Factor ....................................... 5:1 at Full Scale
Additional Crest Factor Errors (<100 Hz) ............ Crest factor 1-2, 0.05 % of full scale
Crest factor 2-3, 0.2 % of full scale
Crest factor 3-4, 0.4 % of full scale
Crest factor 4-5, 0.5 % of full scale
7
volts-Hertz product (whichever is
1-12
Introduction and Specifications
Resolution
4½ Digits
5½ Digits
6½ Digits
100 mV
100.0000 mV
10 µV
1 µV
100 nV
1 V
1.000000 V
100 µV
10 µV
1 µV
10 V
10.00000 V
1 mV
100 µV
1000 V
1,000.000 V
100 mV
10 mV
1 mV
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
100 mV
3 – 5 Hz
1.0 + 0.03
1.0 + 0.04
1.0 + 0.04
0.1 + 0.004
5 – 10 Hz
0.35 + 0.03
0.35 + 0.04
0.35 + 0.04
0.035 + 0.004
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.20 + 0.02
3 – 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10 Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
20 – 50 kHz
0.1 + 0.04
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.2 + 0.02
10 V
3 – 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10 Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
20 – 50 kHz
0.1 + 0.04
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.2 + 0.02
100 V
3 – 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10 Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
[1]
5 – 10 Hz
0.35 + 0.015
0.35 + 0.0225
0.35 + 0.0225
0.035 + 0.00225
10 Hz – 20 kHz
0.04 + 0.015
0.05 + 0.0225
0.06 + 0.0225
0.005 + 0.00225
20 – 50 kHz
0.1 + 0.03
0.11 + 0.0375
0.12 + 0.0375
0.011 + 0.00375
50 – 100 kHz
[2]
0.55 + 0.06
0.6 + 0.06
0.6 + 0.06
0.06 + 0.006
100 – 300 kHz
[1][2]
4.0 + 0.375
4.0 + 0.375
4.0 + 0.375
0.2 + 0.015
[2] 1000 Volt range is limited to 8 X 107 volt-Hertz
Electrical Specifications 1
Input Characteristics
Range Resolution
100 µV 10 µV
100 V 100.0000 V 10 mV 1 mV
4040/4050 Accuracy
Accuracy is given as ± (% measurement + % of range)
Range Frequency
10 Hz – 20 kHz 0.04 + 0.03 0.05 + 0.04 0.06 + 0.04 0.005 + 0.004
20 – 50 kHz 0.1 + 0.05 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005
50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008
1 V
24 Hour
(23
C)
90 Days
(23
C)
1 Year
(23
C)
Input Impedance
1 MΩ ±2 % shunted
by <100 pf
Coefficient/ °C
20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005
50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008
100 –- 300 kHz
1000 V 3 – 5 Hz 1.0 + 0.015 1.0 + 0.0225 1.0 + 0.0225 0.1 + 0.00225
[1] Typically 30 % reading error at 1 MHz
1-13
4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02
DMM4040/4050
AC Filter
3 HZ (slow)
20 HZ (medium)
200 HZ (fast)
20 – 40 Hz
0
0.02 – 40 – 100 Hz
0
0.01
0.55
200 Hz – 1 kHz
0 0 0.02
>1 kHz
0 0 0
Resolution
4½ Digits
5½ Digits
6½ Digits
10 Ω
10.00000 Ω
1 mΩ
100 µΩ
10 µΩ
100 Ω
100.0000 Ω
10 mΩ
1 mΩ
100 µΩ
1 kΩ
1.000000 kΩ
100 mΩ
10 mΩ
1 mΩ
10 kΩ
10.00000 kΩ
1 Ω
100 mΩ
10 mΩ
100 µA/6 V
1 MΩ
1.000000 MΩ
100 Ω
10 Ω
1 Ω
10 µA/13 V
10 MΩ
10.00000 MΩ
1 kΩ
100 Ω
10 Ω
1 µA/13 V
1.0 GΩ
1.000000 GΩ
100 kΩ
10 kΩ
1 kΩ
1 µA || 10 MΩ/10 V
Technical Reference Manual
Additional Low Frequency Errors
Error is stated as % of reading.
Frequency
10 – 20 Hz 0 0.25 –
100 – 200 Hz 0 0 0.2
Resistance
Specifications are for 4-wire resistance function, 2 x 4-wire resistance, or 2-wire resistance with zero. If zero is not used,
add 0.2 Ω for 2-wire resistance plus lead resistance, and add 20 mΩ for 2 x 4-wire resistance function.
Measurement Method ............................................. Current source referenced to LO input
Max. Lead Resistance (4-wire ohms) ..................... 10 % of range per lead for 10 Ω, 100 Ω, 1 kΩ ranges. 1 kΩ per lead on
Input Protection ....................................................... 1000 V on all ranges
Common Mode Rejection ....................................... 140 dB at 50 or 60 Hz ±0.1 % (1 kΩ unbalance)
Normal Mode Rejection .......................................... 60 dB for NPLC of 1 or greater with analog filter off and power line
Analog Filter ............................................................ When using the analog filter, specifications are relative to within one
all other ranges
frequency ±0.1 %
100 dB for NPLC of 1 or greater with analog filter on and power line
frequency ±0.1 %
hour of using the ZERO function for that range and NPLC setting.
Input Characteristics
Range Resolution
100 kΩ 100.0000 kΩ 10 Ω 1 Ω 100 mΩ 100 µA/13 V
100 MΩ 100.0000 MΩ 10 kΩ 1 kΩ 100 Ω 1 µA || 10 MΩ/10 V
Source Current
5 mA/13 V
1 mA/6 V
1 mA/6 V
1-14
Introduction and Specifications
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
10 Ω
0.003 + 0.01
0.008 + 0.03
0.01+ 0.03
0.0006 + 0.0005
100 Ω
0.003 + 0.003
0.008 + 0.004
0.01 + 0.004
0.0006 + 0.0005
1 kΩ
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
100 kΩ
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
10 MΩ
0.015 + 0.001
0.02 + 0.001
0.04 + 0.001
0.003 + 0.0004
1 GΩ
1.0 + 0.01
1.5 + 0.01
2.0 + 0.01
0.6 + 0.0002
Digits
NPLC
Additional NPLC Noise Error
6½
100
0 % of range
6½
10
0 % of range
5½
0.2
0.003 % of range ±7 mΩ
0.017 % of range ±15 mΩ
Resolution
Shunt Resistance
4½ Digits
5½ Digits
6½ Digits
10 nA
1 nA
100 pA
100 Ω
10 mA
10.00000 mA
1 µA
100 nA
10 nA
1 Ω
<0.025 V
100 mA
100.0000 mA
100 nA
<0.25 V
400 mA
[3]
400.000 mA
100 µA
10 µA
1 µA
1 Ω
<0.50 V
[2]
100 µA
10 µA
1 µA
0.01 Ω
[1]
3.00000A
1 mA
<0.15 V
10 A
10.00000 A
1 mA
100 µA
10 µA
0.01 Ω
<0.5 V
Electrical Specifications 1
4040/4050 Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
10 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001
1 MΩ 0.002 + 0.001 0.008 + 0.001 0.01 + 0.001 0.001 + 0.0002
100 MΩ 0.3 + 0.01 0.8 + 0.01 0.8 + 0.01 0.15 + 0.0002
24 Hour
(23
C)
90 Days
(23
C)
1 Year
(23
C)
Coefficient/ °C
Additional Ohms Errors
5½ 1 0.001 % of range
4½ 0.02
DC Current
Input Protection ....................................................... Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses, limits of
Common Mode Rejection ....................................... 140 dB at 50 or 60 Hz ±0.1 % (1 kΩ unbalance)
Normal Mode Rejection .......................................... 60 dB for NPLC of 1 or greater with analog filter off and power line
Analog Filter ............................................................ When using the analog filter, specifications are relative to within one
400 mA continuous 550 mA for 2 minutes on, 1 minute off.
frequency ±0.1 %
100 dB for NPLC of 1 or greater with analog filter on and power line
frequency ±0.1 %
hour of using the ZERO function for that range and NPLC setting.
Input Characteristics
Range Resolution
100 µA 100.0000 µA
1 mA 1.000000 mA 100 nA 10 nA 1 nA
1 A
3 A
[1] Part of 10 A range.
[2] Available on the front panel terminal only.
[3] 400 mA continuously; 550 mA for 2 minutes on, 1 minute off.
1-15
1.000000 A
10 µA 1 µA
100 µA 10 µA 0.01 Ω
(Ohms)
100 Ω
1 Ω
Burden Voltage
<0.015 V
<0.15 V
<0.05 V
DMM4040/4050
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
100 µA
[4]
0.01 + 0.02
0.04 + 0.025
0.05 + 0.025
0.002 + 0.003
1 mA
0.007 + 0.005
0.030 + 0.005
0.05 + 0.005
0.002 + 0.0005
10 mA
[4]
0.007 + 0.02
0.03 + 0.02
0.05 + 0.02
0.002 + 0.002
100 mA
0.01 + 0.004
0.03 + 0.005
0.05 + 0.005
0.002 + 0.0005
[3]
1 A
[2]
0.03 + 0.02
0.04 + 0.02
0.05 + 0.02
0.005 + 0.001
[1][2]
10 A
[2]
0.1 + 0.008
0.12 + 0.008
0.15 + 0.008
0.005 + 0.0008
Additional NPLC Noise Error for
10 A
Additional NPLC Noise Error
6½
100
0 % of range
0 % of range
6½
10
0 % of range
0 % of range
5½
0.2
0.011 % of range ±4 µA
0.11 % of range ±4 µA
0.04 % of range ±4 µA
0.28 % of range ±4 µA
Technical Reference Manual
Accuracy (4040/4050)
Accuracy is given as ± (% measurement + % of range)
Range
400 mA
3 A
0.03 + 0.004 0.04 + 0.005 0.05 + 0.005 0.005 + 0.0005
0.05 + 0.02 0.08 + 0.02 0.1 + 0.02 0.005 + 0.002
[1] Part of 10 A range
[2] Available at front panel connectors only
[3] 400 mA continuously; 550 mA for 2 minutes on, 1 minute off.
[4] In RF fields of 3 V/m and frequencies of 1.7 GHz to 1.9 GHz, add 0.06% of range. With conducted RF
voltages of 3 Vrms and frequencies of 20 MHz to 50 MHz, add 0.08% of range.
24 Hour
(23
C)
90 Days
(23
C)
1 Year
(23
C)
Coefficient/ °C
Additional Current Errors
Digits NPLC
5½ 1 0.001 % of range 0.01 % of range
4½ 0.02
1 mA, 100 mA, 400 mA, 3 A an d
for 100 µA, 10 mA, 1 A
1-16
Introduction and Specifications
Resolution
4½ Digits
5½ Digits
6½ Digits
100 µA
100.0000 µA
10 nA
1 nA
100 pA
100 Ω
<0.015 V
1 mA
100 Ω
10 mA
10.00000 mA
1 µA
100 nA
10 nA
1 Ω
<0.025 V
100.0000 mA
10 µA
1 µA
100 nA
1 Ω
<0.25 V
[3]
100 µA
10 µA
1 µA
1 Ω
1 A
[2]
1.000000 A
100 µA
10 µA
1 µA
0.01 Ω
<0.05 V
[1][2]
3.00000 A
1 mA
<0.05 V
[2]
100 µA
10 µA
0.01 Ω
Electrical Specifications 1
AC Current
The following ac current specifications are for sinusoidal signals with amplitudes greater than 5 % of range. For inputs
from 1 % to 5 % of range, add an additional error of 0.1 % of range.
Input Protection ....................................................... Tool accessible 11 A/1000 V and 440 mA/1000 V fuses, limits of
Measurement Method ............................................. ac-coupled true-rms, dc-coupled to the fuse and shunt (no blocking
AC Filter Bandwidth
Slow .................................................................... 3 Hz to 10 kHz
Medium ............................................................... 20 Hz to 10 kHz
Fast ..................................................................... 200 Hz to 10 kHz
Crest Factor Error (applies to non-sinusoidal waveforms only)
Maximum Crest Factor ....................................... 5:1 at full scale
Additional Crest Factor Errors (<100 Hz) ............ Crest factor 1-2, 0.05 % of full scale
400 mA continuous 550 mA for 2 minutes on, 1 minute off.
capacitor)
Crest factor 2-3, 0.2 % of full scale
Crest factor 3-4, 0.4 % of full scale
Crest factor 4-5, 0.5 % of full scale
Input Characteristics
Range Resolution
Shunt Resistance
(Ohms)
Burden Voltage
1.000000 mA 100 nA 10 nA 1 nA
100 mA
400 mA
400.000 mA
3 A
10 A
10.00000 A 1 mA
[1] Part of 10 A range
[2] Available at front panel connectors only
[3] 400 mA continuously; 550 mA for 2 minutes on, 1 minute off; maximum crest factor 3:1 at 400 mA
100 µA 10 µA 0.01 Ω
<0.15 V
<0.50 V
<0.5 V
1-17
DMM4040/4050
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
3 – 5 Hz
1.1 + 0.06
1.1 + 0.06
1.1 + 0.06
0.2 + 0.006
5 – 10 Hz
0.35 + 0.06
0.35 + 0.06
0.35 + 0.06
0.1 + 0.006
5 – 10 kHz
0.35 + 0.7
0.35 + 0.7
0.35 + 0.7
0.03 + 0.006
1 mA
3 – 5 Hz
1.0 + 0.04
1.0 + 0.04
1.0 + 0.04
0.1 + 0.006
5 – 10 Hz
0.3 + 0.04
0.3 + 0.04
0.3 + 0.04
0.035 + 0.006
10 Hz – 5 kHz
0.1 + 0.04
0.1 + 0.04
0.1 + 0.04
0.015 + 0.006
5 – 10 kHz
0.2 + 0.25
0.2 + 0.25
0.2 + 0.25
0.03 + 0.006
10 mA
3 – 5 Hz
1.1 + 0.06
1.1 + 0.06
1.1 + 0.06
0.2 + 0.006
10 Hz – 5 kHz
0.15 + 0.06
0.15 + 0.06
0.15+ 0.06
0.015 + 0.006
5 – 10 kHz
0.35 + 0.7
0.35 + 0.7
0.35 + 0.7
0.03 + 0.006
100 mA
3 – 5 Hz
1.0 + 0.04
1.0 + 0.04
1.0 + 0.04
0.1 + 0.006
5 – 10 Hz
0.3 + 0.04
0.3 + 0.04
0.3 + 0.04
0.035 + 0.006
10 Hz – 5 kHz
0.1 + 0.04
0.1 + 0.04
0.1 + 0.04
0.015 + 0.006
[3]
3 – 5 Hz
1.0 + 0.1
1.0 + 0.1
1.0 + 0.1
0.1 + 0.006
10 Hz – 1 kHz
0.1 + 0.1
0.1 + 0.1
0.1 + 0.1
0.015 + 0.006
1kHz – 10 kHz
0.2 + 0.7
0.2 + 0.7
0.2 + 0.7
0.03 + 0.006
[2]
3 – 5 Hz
1.0 + 0.04
1.0 + 0.04
1.0 + 0.04
0.1 + 0.006
5 – 10 Hz
0.3 + 0.04
0.3 + 0.04
0.3 + 0.04
0.035 + 0.006
5 – 10 kHz
0.35 + 0.7
0.35 + 0.7
0.35 + 0.7
0.03 + 0.006
3 A
[1][2]
3 – 5 Hz
1.1 + 0.06
1.1 + 0.06
1.1 + 0.06
0.1 + 0.006
5 – 10 Hz
0.35 + 0.06
0.35 + 0.06
0.35 + 0.06
0.035 + 0.006
10 Hz – 5 kHz
0.15 + 0.06
0.15 + 0.06
0.15 + 0.06
0.015 + 0.006
5 – 10 kHz
0.35 + 0.7
0.35 + 0.7
0.35 + 0.7
0.03 + 0.006
[2]
3 – 5 Hz
1.1 + 0.06
1.1 + 0.06
1.1 + 0.06
0.1 + 0.006
10 Hz – 5 kHz
0.15 + 0.06
0.15 + 0.06
0.15 + 0.06
0.015 + 0.006
5 – 10 kHz
0.35 + 0.7
0.35 + 0.7
0.35 + 0.7
0.03 + 0.006
Technical Reference Manual
4040/4050 Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
100 µA
400 mA
1 A
Frequency
(Hz)
24 Hour
(23
C)
90 Days
(23
C)
1 Year
(23
C)
Coefficient/ °C
10 Hz – 5 kHz 0.15 + 0.06 0.15 + 0.06 0.15 + 0.06 0.015 + 0.006
5 – 10 Hz 0.35 + 0.06 0.35 + 0.06 0.35 + 0.06 0.1 + 0.006
5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006
5 – 10 Hz 0.3 + 0.1 0.3 + 0.1 0.3 + 0.1 0.035 + 0.006
10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006
10 A
5 – 10 Hz 0.35 + 0.06 0.35 + 0.06 0.35 + 0.06 0.035 + 0.006
[1] Part of 10 A range
[2] Available only on front panel connectors
[3] 400 mA continuously; 550 mA for 2 minutes on, 1 minute off; maximum crest factor 3:1 at 400 mA; specification for
current above 329 mA is typical.
1-18
Introduction and Specifications
AC Filter
3HZ (slow)
20HZ (medium)
200HZ (fast)
20 – 40 Hz
0
0.02 – 40 – 100 Hz
0
0.01
0.55
200 Hz – 1 kHz
0 0 0.02
> 1 kHz
0 0 0
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
100 mV to
3 – 5 Hz
0.1
0.1
0.1
0.005
5 – 10 Hz
0.05
0.05
0.05
0.005
10 – 40 Hz
0.03
0.03
0.03
0.001
40 Hz – 300 kHz
0.006
0.01
0.01
0.001
300 kHz – 1 MHz
0.006
0.01
0.01
0.001
Gate Time
Resolution
0.01
5½
0.1
6½
1.0
6½
Resolution
6½
5½
4½
5 – 10 Hz 0 0.17
0.17
10 – 40 Hz 0 0.2
0.2
40 – 100 Hz 0 0.06
0.21
100 – 300 Hz 0 0.03
0.21
300 Hz – 1 kHz 0 0.01
0.07
> 1 kHz 0 0
0.02
Electrical Specifications 1
Additional Low Frequency Errors
Error is stated as % of reading.
Frequency
10 – 20 Hz 0 0.25 –
100 – 200 Hz 0 0 0.2
Frequency
Gate Times ............................................................. Programmable to 1 s, 100 ms, and 10 ms
Measurement Method ............................................. Flexible counting technique. AC-coupled input using the ac voltage
Settling Considerations ........................................... When measuring frequency or period after a dc offset voltage change,
Measurement Considerations ................................. To minimize measurement errors, shield inputs from external noise
measurement function.
errors may occur. For the most accurate measurement, wait up to
1 second for the input blocking capacitor to settle.
when measuring low-voltage, low-frequency signals.
4040/4050 Accuracy
Accuracy is given as ± % measurement
Range Frequency
[1][2]
1000 V
[1] Input >100 mV. For 10 – 100 mV, multiply percent measurement error by 10.
[2] Limited to 8 X 10
7
volt-Hertz
24 Hour
(23
C)
90 Days
(23
C)
1 Year
(23
Coefficient/ °C
C)
Gate Time vs. Resolution
Additional Low Frequency Errors
Error stated as percent of measurement for inputs >100 mV. For 10 – 100 mV, multiply percent by 10.
Frequency
3 – 5 Hz 0 0.12 0.12
1-19
DMM4040/4050
[1]
(23 ±5 °C)
°C
Outside 18 to 28 °C
2% ± 2.5 %
10 nF
10 pF
0.05 + 0.01
1% ± 0.5 %
1 nF
0.01 + 0.01
10 µF
1% ± 0.5 %
100 µF
100 nF
1% ± 0.5 %
0.01 + 0.01
1 mF
1 µF
1% ± 0.5 %
0.01 + 0.01
10 mF
10 µF
1% ± 0.5 %
0.01 + 0.01
100 mF
100 µF
4% ± 0.2 %
0.05 + 0.05
Accuracy
Temperature
°
90 Days
(23 ±5 °C)
1 Year
(23 ±5 °C)
-200 °C
0.001 °C
0.06
0.09
0.0025
0 °C
0.001 °C
0.04
0.06
0.002
100 °C
0.001 °C
0.05
0.08
0.002
600 °C
0.001 °C
0.18
0.22
0.002
Digits
NPLC
Additional NPLC Noise Error
6 ½
100
6 ½
10
0 °C
0.03 °C
5 ½
0.2
0.12 °C
4 ½
0.02
±1 °
±5 °
±5 °
Temperature
Outside 18 to 28 °C
1000.0 Ω
0.002 + 0.01
0.008 + 0.02
0.01 + 0.02
0.001 + 0.002
Technical Reference Manual
Capacitance (4050 only)
Accuracy is stated as ±(% of measurement + % of range)
Range Resolution
1 Year Accuracy
Temperature Coefficient/
1 nF 1 pF
100 nF 100 pF
1 µF
10 nF
[1] Stated accuracy is attained when Zero function is used.
1% ± 0.5 %
1% ± 0.5 %
0.05 + 0.05
0.01 + 0.01
0.01 + 0.01
Temperature (4050 only)
Test Current ............................................................ 1 mA
Accuracy is stated as ± °C and is based on a Platinum RT100 (DIN IEC 751, 385 type) RTD with less than 10 ohms lead
resistance. The accuracy listed in the table below are valid only when using the 4-wire RTD measurement function.
Specifications do not include probe accuracy, which must be added.
Range Resolution
-100 °C 0.001 °C 0.05 0.08 0.002
Coefficient/ °C
Outside 18 to 28
C
300 °C 0.001 °C 0.1 0.12 0.002
Additional Errors
0 °C
5 ½ 1
0.6 °C
Continuity
Continuity Threshold ............................................... Selectable between 1 Ω and 1000 Ω
Test Current ............................................................ 1 mA
Response Time ....................................................... 300 samples/sec with audible tone
Accuracy is given as ± (% measurements + % of range)
Range
24 Hour
(23
C)
90 Days
(23
C)
1 Year
(23
C)
Coefficient/ °C
1-20
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