Fluke 5520A Service User manual

®
5520A
Multi-Product Calibrator
Getting Started
PN 2075585
March 2003
© 2003 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under
normal use and service. The warranty period is one year and begins on the date of shipment.
Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the
original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses,
disposable batteries, or to any product which, in Fluke’s opinion, has been misused, altered,
neglected, contaminated, or damaged by accident or abnormal conditions of operation or
handling. Fluke warrants that software will operate substantially in accordance with its functional
specifications for 90 days and that it has been properly recorded on non-defective media. Fluke
does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user
customers only but have no authority to extend a greater or different warranty on behalf of Fluke.
Warranty support is available only if product is purchased through a Fluke authorized sales outlet
or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for
importation costs of repair/replacement parts when product purchased in one country is submitted
for repair in another country.
Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, free of
charge repair, or replacement of a defective product which is returned to a Fluke authorized
service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that service center, with a description of the
difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in
transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid
(FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination,
alteration, accident, or abnormal condition of operation or handling, including overvoltage failures
caused by use outside the product’s specified rating, or normal wear and tear of mechanical
components, Fluke will provide an estimate of repair costs and obtain authorization before
commencing the work. Following repair, the product will be returned to the Buyer transportation
prepaid and the Buyer will be billed for the repair and return transportation charges (FOB
Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM
ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or
exclusion or limitation of incidental or consequential damages, the limitations and exclusions of
this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or
unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not
affect the validity or enforceability of any other provision.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
11/99

®
Safety Information
This Calibrator complies with IEC publication 1010-1 (1992-1), Safety Requirements for
Electrical Measuring, Control and Laboratory Equipment, and ANSI/ISA-S82.01-1994,
and CAN/CSA-C22.2 No. 1010.1-92. This manual contains information, warnings, and
cautions that must be followed to ensure safe operation and to maintain the Calibrator in
a safe condition. Use of this Calibrator in a manner not specified herein may impair the
protection provided by the Calibrator.
This Calibrator is designed for IEC 1010-1 Installation Category II use. It is not designed
for connection to circuits rated over 4800 VA.
Warning statements identify conditions or practices that could result in personal injury or
loss of life.
Caution statements identify conditions or practices that could result in damage to
equipment.
SYMBOLS MARKED ON THE CALIBRATOR
WARNING Risk of electric shock. Refer to the manual (see the Index for
references).
GROUND Ground terminal to chassis (earth).
Attention Refer to the manual (see the Index for references). This
symbol indicates that information about usage of a feature is contained in
the manual.
AC POWER SOURCE
The Calibrator is intended to operate from an ac power source that will not apply more
than 264V ac rms between the supply conductors or between either supply conductor
and ground. A protective ground connection by way of the grounding conductor in the
power cord is required for safe operation.
USE THE PROPER FUSE
To avoid fire hazard, use only the specified replacement fuse:
•For 100 V or 120 V operation, use a 5A/250V time delay fuse (Fluke PN 109215).
•For 220 V or 240 V operation, use a 2.5A/250V time delay fuse (Fluke PN 851931).
GROUNDING THE CALIBRATOR
The Calibrator uses controlled overvoltage techniques that require the Calibrator to be
grounded whenever normal mode or common mode ac voltages or transient voltages
may occur. The enclosure must be grounded through the grounding conductor of the
power cord, or through the rear panel CHASSIS GROUND binding post.

USE THE PROPER POWERCORD
Use only the power cord and connector appropriate for the voltage and plug
configuration in your country.
Use only a power cord that is in good condition.
Refer power cord and connector changes to qualified service personnel.
DONOTOPERATE IN EXPLOSIVE ATMOSPHERES
To avoid explosion, do notoperatetheCalibratorin anatmosphere ofexplosive gas.
CHECK INSULATIONRATINGS
Verify that the voltage applied to the unit under test does not exceed the insulation rating
of the UUT and the interconnecting cables.
DONOT REMOVE COVER DURING OPERATION
To avoid personal injury or death, do not remove the Calibrator cover without first
removing the power source connected to the rear panel. Do not operate the Calibrator
without the cover properly installed. Normal calibration is accomplished with the cover
closed. Access procedures and the warnings for such procedures are contained in the
Service Manual. Service procedures are for qualified service personnel only.
DO NOTATTEMPTTOOPERATEIFPROTECTIONMAYBEIMPAIRED
If the Calibrator appears damaged or operates abnormally, protection may be impaired. Do
not attempt to operate the Calibrator under these conditions. Refer all questions of proper
Calibrator operation to qualified service personnel.

i
Table of Contents
Title Page
Introduction ....................................................................................................... 1
Operation Overview .......................................................................................... 3
Local Operation............................................................................................. 3
Remote Operation (RS-232).......................................................................... 3
Remote Operation (IEEE-488)...................................................................... 3
Where to Go from Here..................................................................................... 4
Instruction Manuals........................................................................................... 5
5520A Getting Started Manual ..................................................................... 6
5520A Operators Manual.............................................................................. 6
5520A Operators Guide ................................................................................ 6
5520A Programmers Guide........................................................................... 6
5520A Service Manual.................................................................................. 6
Specifications .................................................................................................... 7
General Specifications .................................................................................. 8
DC Voltage Specifications............................................................................ 9
DC Current Specifications ............................................................................ 10
Resistance Specifications.............................................................................. 12
AC Voltage (Sine Wave) Specifications....................................................... 13
AC Current (Sine Wave) Specifications (cont)............................................. 16
Capacitance Specifications............................................................................ 17
Temperature Calibration (Thermocouple) Specifications............................. 18
Temperature Calibration (RTD) Specifications............................................ 19
DC Power Specification Summary................................................................ 20
AC Power (45 Hz to 65 Hz) Specification Summary, PF=1......................... 20
Power and Dual Output Limit Specifications ............................................... 21
Phase Specifications...................................................................................... 22
Calculating Power Uncertainty ..................................................................... 23
Frequency Specifications .............................................................................. 24
Harmonics (2nd to 50th) Specifications........................................................ 25
AC Voltage (Sine Wave) Extended Bandwidth Specifications .................... 26
AC Voltage (Non-Sine Wave) Specifications............................................... 27
AC Voltage, DC Offset Specifications ......................................................... 28
AC Voltage, Square Wave Characteristics ................................................... 29
AC Voltage, Triangle Wave Characteristics (typical)................................... 29
AC Current (Sine Wave) Extended Bandwidth Specifications..................... 29

5520A
Getting Started
ii
AC Current (Non-Sine Wave) Specifications............................................... 30
AC Current, Square Wave Characteristics (typical) ..................................... 32
AC Current, Triangle Wave Characteristics (typical)................................... 32

1
Getting Started
Introduction
Warning
If the 5520A Multi-Function Calibrator is operated in any way
not specified by this manual or other documentation provided
by Fluke, the protection provided by the Calibrator may be
impaired.
The 5520A Multi-Function Calibrator (referred to throughout this manual as either "the
5520A Calibrator" or "the Calibrator") is a fully programmable precision source of the
following:
•DC voltage from 0 V to ±1000 V.
•AC voltage from 1 mV to 1000 V, with output from 10 Hz to 500 kHz.
•AC current from 100 µA to 20.5 A, with variable frequency limits.
•DC current from 0 to ±20.5 A.
•Resistance values from a short circuit to 1100 MΩ.
•Capacitance values from 190 pF to 110 mF.
•Simulated output for eight types of Resistance Temperature Detectors (RTDs).
•Simulated output for eleven types of thermocouples.
0•
123
456
789
ENTER
M
k
mVHz
FIELD
EDIT
/
+
F
OPRSTBY EARTH SCOPE
EXGRD MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡C
POWER
A
MULT
x
DIV
÷
MODES
MORE
5520A
CALIBRATOR
HI
LO
TRIG
GUARD
TC
20A
NORMAL AUX SCOPE
OUT
V, , ,RTD A, -SENSE, AUX V
20V PK MAX
20V PK MAX
nn030f.eps
Figure 1. 5520A Multi-Function Calibrator

5520A
Getting Started
2
Features of the 5520A Calibrator include the following:
•Automatic meter error calculation.
•Xand Dkeys that change the output value to pre-determined cardinal values
for various functions.
•Programmable entry limits that prevent invalid amounts from being entered.
•Simultaneous output of voltage and current, up to an equivalent of 20.9 kW.
•Pressure measurement when used with Fluke 700 Series pressure modules.
•10 MHz reference input and output. Use this to input a high-accuracy 10 MHz
reference to transfer the frequency accuracy to the 5520A, or to synchronize one or
more additional 5520As to a master 5520A.
•Simultaneous output of two voltages.
•Extended bandwidth mode outputs multiple waveforms down to 0.01 Hz, and sine
waves to 2 MHz.
•Variable phase signal output.
•Standard IEEE-488 (GPIB) interface, complying with ANSI/IEEE Standards
488.1-1987 and 488.2-1987.
•EIA Standard RS-232-C serial data interface for printing, displaying, or transferring
internally stored calibration constants, and for remote control of the 5520A.
•Pass-through RS-232-C serial data interface for communicating with the Unit Under
Test (UUT).

Multi-Function Calibrator
Operation Overview
3
Operation Overview
The 5520A Calibrator may be operated at the front panel in the local mode, or remotely
using RS-232 or IEEE-488 ports. For remote operations, several software options are
available to integrate 5520A operation into a wide variety of calibration requirements.
LocalOperation
Typical local operations include front panel connections to the Unit Under Test (UUT),
and then manual keystroke entries at the front panel to place the calibrator in the desired
output mode. The front panel layout facilitates hand movements from left to right, and
multiply and divide keys make it easy to step up or down at the press of a single key. You
can also review 5520A Calibrator specifications at the push of two buttons. The backlit
liquid crystal display is easy to read from many different viewing angles and lighting
conditions, and the large, easy-to-read keys are color-coded and provide tactile feedback.
Remote Operation (RS-232)
There are two rear-panel serial data RS-232 ports: SERIAL 1 FROM HOST, and
SERIAL 2 TO UUT (Figure 2). Each port is dedicated to serial data communications for
operating and controlling the 5520A during calibration procedures. For complete
information on remote operations, see Chapter 5 in the Operators Manual.
The SERIAL 1 FROM HOST serial data port connects a host terminal or personal
computer to the 5520A. You have several choices for sending commands to the 5520A:
you can enter commands from a terminal (or a PC running a terminal program), you can
write your own programs using BASIC, or you can run optional Windows-based software
such as 5500/CAL or MET/CAL. The 5500/CAL software includes more than 200
example procedures covering a wide range of test tools the 5520A can calibrate. (See
Chapter 6 in the Operators Manual for a discussion of the RS-232 commands.)
The SERIAL 2 TO UUT serial data port connects a UUT to a PC or terminal via the
5520A (see Figure 2). This “pass-through” configuration eliminates the requirement for
two COM ports at the PC or terminal. A set of four commands control the operation of
the SERIAL 2 TO UUT serial port. See Chapter 6 in the Operators Manual for a
discussion of the UUT_* commands. The SERIAL 2 TO UUT port is also used to
connect to the Fluke 700 series pressure modules.
Remote Operation (IEEE-488)
The 5520A rear panel IEEE-488 port is a fully programmable parallel interface bus
meeting standard IEEE-488.1 and supplemental standard IEEE-488.2. Under the remote
control of an instrument controller, the 5520A Calibrator operates exclusively as a
“talker/listener.” You can write your own programs using the IEEE-488 command set or
run the optional Windows-based MET/CAL software. (See Chapter 6 in the Operators
Manual for a discussion of the commands available for IEEE-488 operation.)

5520A
Getting Started
4
Unit Under Test
PC or Terminal
5520A
5520A
SERIAL 1 FROM HOST port COM port
RS-232 Remote Operation using the
SERIAL 1 FROM HOST port
PC or Terminal
SERIAL 1 FROM HOST port
COM port
SERIAL 2
TO UUT port
RS-232 Remote Operation using the
SERIAL 1 FROM HOST and
SERIAL 2 TO UUT ports
nn031f.eps
Figure 2. RS-232 Remote Connections
Where toGofrom Here
To locate specific information in the Operators Manual (provided as a pdf file on the CD-
ROM) refer to the following list:
•Unpacking and setup: Chapter 2, “Preparing for Operation”
•Installation and rack mounting: Chapter 2, “Preparing for Operation,” and the rack
mount kit instruction sheet
•AC line power and interface cabling: Chapter 2, “Preparing for Operation”
•Controls, indicators, and displays: Chapter 3, “Features”
•Front panel operation: Chapter 4, “Front Panel Operation”
•Cabling to a UUT (Unit Under Test): Chapter 4, “Front Panel Operation”
•Remote operation (IEEE-488 or serial): Chapter 5, “Remote Operation”
•Calibrating an Oscilloscope: Chapter 8, “Oscilloscope Calibration Options”
•Accessories to the 5520A Calibrator: Chapter 9, “Accessories”
•Performance Specifications: Chapter 1, “Introduction and Specifications”

Multi-Function Calibrator
Instruction Manuals
5
Instruction Manuals
The 5520A manual set provides complete information for operators and service or
maintenance technicians. The set includes:
•5520A Getting Started Manual (PN 2075585)
•5520A Operators Guide
•English (PN 688754)
•French (PN 688751)
•German (PN 688762)
•Italian (PN 690511)
•Spanish (PN 688769)
•Japanese (PN 688770)
•Simplified Chinese (PN 688777)
•5520A Programmers Guide (PN 688744)
•5520A Operators Manual provided on CD-ROM (printed copy available for purchase
under PN 688739)
•5520A Service Manual provided on CD-ROM ( printed copy available for purchase
under PN 688747)

5520A
Getting Started
6
5520A Getting Started Manual
This 5520A Getting Started Manual contains a brief introduction to the 5520A Manual
Set, instructions on how to get your calibrator prepared for operation and a complete set
of specifications.
5520A OperatorsManual
The 5520A Operators Manual provides complete information for installing the 5520A
Calibrator and operating it from the front panel keys and in remote configurations. This
manual also provides a glossary of calibration, specifications, and error code information.
The Operators Manual includes the following topics:
•Installation
•Operating controls and features, including front panel operation
•Remote operation (IEEE-488 bus or serial port remote control)
•Serial port operation (printing, displaying, or transferring data, and setting up for
serial port remote control)
•Operator maintenance, including verification procedures and calibration approach for
the 5520A
•Oscilloscope calibration options
•Accessories
5520A OperatorsGuide
The 5520A Operators Guide contains a summary of operating instructions, and a front
panel and rear panel feature reference. It is available in seven languages.
5520A Programmers Guide
The 5520A Programmers Guide contains a summary of remote commands and reference
information useful in determining system status using the status byte and related
registers.
5520A Service Manual
The 5520A Service Manual includes: theory of operation, performance testing,
maintenance, and calibration information.

Multi-Function Calibrator
Specifications
7
Specifications
The following tables list the 5520A specifications. All specifications are valid after
allowing a warm-up period of 30 minutes, or twice the time the 5520A has been turned
off. (For example, if the 5520A has been turned off for 5 minutes, the warm-up period is
10 minutes.)
All specifications apply for the temperature and time period indicated. For temperatures
outside of tcal ±5 °C (tcal is the ambient temperature when the 5520A was calibrated), the
temperature coefficient as stated in the General Specifications must be applied.
The specifications also assume the Calibrator is zeroed every seven days or whenever the
ambient temperature changes more than 5 °C. The tightest ohms specifications are
maintained with a zero cal every 12 hours within ±1 °C of use. (See “Zeroing the
Calibrator” in Chapter 4 of the Operators Manual.)
Also see additional specifications later in this chapter for information on extended
specifications for ac voltage and current. The dimensional outline for the 5520A
Calibrator is shown in Figure 3.
POWER
I
O
0•
123
456
789
ENTER
M
k
mVHz
FIELD
EDIT
/
+
F
OPR EARTH EXGRD SCOPE MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡CA
MULT
x
DIV
÷
MODES
MORE
STBY
43.2 cm (17 in)
47.0 cm (18.5 in) 6.4 cm
(2.5 in)
For Cable
Access
17.8 cm
(7 in)
HI
LO
TRIG
GUARD
TC
20A
NORMAL AUX
5520A CALIBRATOR
SCOPE
OUT
V, , ,RTD A, -SENSE, AUX V
20V PK MAX
20V PK MAX
nn032f.eps
Figure 3. 5520A Calibrator Dimensional Outline

5520A
Getting Started
8
GeneralSpecifications
Warmup Time Twice the time since last warmed up, to a maximum of 30 minutes.
Settling Time Less than 5 seconds for all functions and ranges except as noted.
Standard Interfaces IEEE-488 (GPIB), RS-232, 5725A Amplifier
Temperature Performance • Operating: 0 °C to 50 °C
• Calibration (tcal): 15 °C to 35 °C
• Storage: -20 °C to 70 °C [3]
Temperature Coefficient Temperature Coefficient for temperatures outside tcal +5 °C is 0.1X/°C of
the 90-day specification (or 1-year, as applicable) per °C.
Relative Humidity [1] • Operating: <80% to 30 °C, <70% to 40 °C, <40% to 50 °C
• Storage: <95%, non-condensing
Altitude • Operating: 3,050 m (10,000 ft) maximum
• Non-operating: 12,200 m (40,000 ft) maximum
Safety Complies with IEC 1010-1 (1992-1); ANSI/ISA-S82.01-1994;
CAN/CSA-C22.2 No. 1010.1-92
Analog Low Isolation 20 V
EMC Designed to comply with FCC Rules Part 15; VFG 243/1991. If used in
areas with Electromagnetic fields of 1 to 3 V/m, resistance outputs have a
floor adder of 0.508•. Performance not specified above 3 V/m. This
instrument may be susceptible to electro-static discharge (ESD) from direct
contact to the binding posts. Good static aware practices should be
followed when handling this and other pieces of electronic equipment.
Line Power [2] • Line Voltage (selectable): 100 V, 120 V, 220 V, 240 V
• Line Frequency: 47 Hz to 63 Hz
• Line Voltage Variation: ±10% about line voltage setting
Power Consumption 5500A Calibrator, 300 VA; 5725A Amplifier, 750 VA
Dimensions 5500A Calibrator:
• Height: 17.8 cm (7 inches), standard rack increment, plus 1.5 cm (0.6
inch) for feet on bottom of unit;
• Width: 43.2 cm (17 inches), standard rack width
• Depth: 47.3 cm (18.6 inches) overall 5725A Amplifier:
• Height, 13.3 cm (5.25 inches), standard rack increment, plus 1.5 cm (0.6
inch) for feet on bottom of unit;
• Width, 43.2 cm (17 inches), standard rack width
• Depth, 63.0 cm (24.8 inches) overall.
Weight (without options) 5500A Calibrator, 22 kg (49 lb); 5725A Amplifier 32 kg (70 pounds)
Absolute Uncertainty Definition The 5500A specifications include stability, temperature coefficient, linearity,
line and load regulation, and the traceability of the external standards used
for calibration. You do not need to add anything to determine the total
specification of the 5520A for the temperature range indicated.
Specification Confidence
Interval 99%
[1] After long periods of storage at high humidity, a drying out period (with the power on) of at least one week may be
required.
[2] For optimal performance at full dual outputs (e.g. 1000 V, 20A) choose a line voltage setting that is
± 7.5% from
nominal.
[3] The DC Current ranges 0 to 1.09999 A and 1.1 A to 2.99999 A are sensitive to storage temperatures above 50 °C.
If the 5520A is stored above 50 °C for greater than 30 minutes, these ranges must be re-calibrated. Otherwise, the
90 day and 1 year uncertainties of these ranges double.

Multi-Function Calibrator
Specifications
9
DC VoltageSpecifications
Absolute Uncertainty, tcal ±5
°C
±(ppm of output +µV) Stability
Range 90 days 1 year
24 hours, ±1 °C
±(ppm output +µV)
Resolution
µV
Max
Burden
[1]
0 to 329.9999 mV 15 +1 20 +13+1 0.1 50 Ω
0 to 3.299999 V 9 +2 11 +22+1.5 1 10 mA
0 to 32.99999 V 10 +20 12 +20 2 +15 10 10 mA
30 V to 329.9999 V 15 +150 18 +150 2.5 +100 100 5 mA
100 V to 1000.000 V 15 +1500 18 +1500 3 [phone] mA
Auxiliary Output (dual output mode only) [2]
0 to 329.999 mV 300 +350 400 +350 30 +100 1 5 mA
0.33 V to 3.29999 V 300 +350 400 +350 30 +100 10 5 mA
3.3 V to 7 V 300 +350 400 +350 30 +100 100 5 mA
TC Simulate and Measure in Linear 10 µV/°C and 1 mV/°C modes [3]
0 to 329.999 mV 40 +3 50 +35+2 0.1 10 Ω
[1] Remote sensing is not provided. Output resistance is <5 mΩfor outputs ≥0.33 V. The AUX output has an output
resistance of <1 Ω. TC simulation has an output impedance of 10 Ω±1 Ω.
[2] Two channels of dc voltage output are provided.
[3] TC simulating and measuring are not specified for operation in electromagnetic fields above 0.4 V/m.
Noise
Range Bandwidth 0.1 Hz to 10 Hz p-p
±(ppm output +floor) Bandwidth 10 Hz to 10 kHz rms
0 to 329.9999 mV 0 +1 µV6µV
0 to 3.299999 V 0 +10 µV 60 µV
0 to 32.99999 V 0 +100 µV 600 µV
30 to 329.9999 V 10 +1 mV 20 mV
100 to 1000.000 V 10 +5 mV 20 mV
Auxiliary Output (dual output mode only) [1]
0 to 329.999 mV 0 +5 µV 20 µV
0.33 V to 3.29.999 V 0 +20 µV 200 µV
3.3 V to 7 V 0 +100 µV 1000 µV
[1] Two channels of dc voltage output are provided.

5520A
Getting Started
10
DC Current Specifications
Absolute Uncertainty,
tcal ±5 °C
±(ppm of output +µA)
Range 90 days 1 year Resolution
Max
Compliance
Voltage
V
Max
Inductive
Load
mH
0 to 329.999 mA 120 +0.02 150 +0.02 1 nA 10
0 to 3.29999 mA 80 +0.05 100 +0.05 0.01 mA 10
0 to 32.9999 mA 80 +0.25 100 +0.25 0.1 mA 7
0 to 329.999 mA 80 +2.5 100 +2.5 1 mA 7 400
0 to 1.09999 A 160 + 40 200 +40 10 mA 6
1.1 to 2.99999 A 300 + 40 380 +40 10 mA 6
0 to 10.9999 A
(20 A Range) 380 +500 500 +500 100 mA 4
11 to 20.5 A [1] 800 +750 [2] 1000 +750 [2] 100 mA 4
[1] Duty Cycle: Currents < 11 A may be provided continuously. For currents >11 A, see Figure 1-4. The current may be
provided 60-T-Iminutes any 60 minute period where T is the temperature in °C (room temperature is about 23 °C)
and I is the output current in amperes. For example, 17 A, at 23 °C could be provided for 60-17-23 = 20 minutes
each hour.
[2] Floor specification is 1500 µA within 30 seconds of selecting operate. For operating times >30 seconds, the floor
specification is 750 µA.
Noise
Range Bandwidth
0.1 Hz to 10 Hz p-p Bandwidth
10 Hz to 10 kHz rms
0 to 329.999 µA 2 nA 20 nA
0 to 3.29999 mA 20 nA 200 nA
0 to 32.9999 mA 200 nA 2.0 µA
0 to 329.999 mA 2000 nA 20 µA
0 to 2.99999 A 20 µA1mA
0 to 20.5 A 200 µA 10 mA

Multi-Function Calibrator
Specifications
11
DC Current Specifications (cont)
Ambient
0 °C
20 °C
10 °C
30 °C
40 °C
Current (Amps)
Minutes per Hour
Duty Cycle (%)
0%
10%
20%
30%
40%
60%
70%
80%
50%
5
10
15
20
25
30
35
40
45
50
011 12 13 14 15 16 17 18 19 20
nn326f.eps
Figure 4. Allowable Duration of Current >11 A

5520A
Getting Started
12
ResistanceSpecifications
Absolute Uncertainty, tcal ±5 °C
±(ppm of output +floor) [2]
ppm of output Floor
Time & temp since ohms zero cal
Range
[1] 90 days 1 year 12 hrs ±1 °C 7 days ±5 °C
Resolution
Ω
Allowable
Current
[3]
0 to
10.9999 Ω35 40 0.001 0. 01 0.0001 1 mA to 125 mA
11 Ωto
32.9999 Ω25 30 0.0015 0.015 0.0001 1 mA to 125 mA
33 Ω to
109.9999 Ω22 28 0.0014 0.015 0.0001 1 mA to 70 mA
110 Ω to
329.9999 Ω22 28 0.002 0.02 0.0001 1 mA to 40 mA
330 Ωto
1.099999 kΩ22 28 0.002 0.02 0.001 1 mA to 18 mA
1.1 kΩto
3.299999 kΩ22 28 0.02 0.2 0.001 100 µA to 5 mA
3.3 kΩ to
10.99999 kΩ22 28 0.02 0.1 0.01 100 µA to 1.8 mA
11 kΩ to
32.99999 kΩ22 28 0.2 1 0.01 10 µA to 0.5 mA
33 kΩ to
109.9999 kΩ22 28 0.2 1 0. 1 10 µA to 0.18 mA
110 kΩ to
329.9999 kΩ25 32 2 10 0.1 1 µA to 0.05 mA
330 kΩto
1.099999 MΩ25 32 2 10 1 1 µA to 0.018 mA
1.1 MΩ to
3.299999 MΩ40 60 30 150 1 250 nA to 5 µA
3.3 MΩ to
10.99999 MΩ110 130 50 250 10 250 nA to 1.8 µA
11 MΩ to
32.99999 MΩ200 250 2500 2500 10 25 nA to 500 nA
33 MΩ to
109.9999 MΩ400 500 3000 3000 100 25 nA to 180 nA
110 MΩ to
329.9999 MΩ2500 3000 100000 100000 1000 2.5 nA to 50 nA
330 MΩ to
1100 MΩ12000 15000 500000 500000 10000 1 nA to 13 nA
[1] Continuously variable from 0 Ω to 1.1 G Ω.
[2] Applies for 4-WIRE compensation only. For 2-WIRE and 2-WIRE COMP, add 5 µV per Amp of stimulus current to
the floor specification. For example, in 2-WIRE mode, at 1 kΩ, the floor specification within 12 hours of an ohms
zero cal for a measurement current of 1 mA is:
0.002 Ω+5 µV / 1 mA = (0.022 + 0.005) Ω =0.007Ω.
[3] For currents lower than shown, the floor adder increases by Floor(new) = Floor(old) x Imin/Iactual. For example, a 50 µA
stimulus measuring 100 Ωhas a floor specification of: 0.0014 Ωx 1 mA/50 µA = 0.028 Ω, assuming an ohms zero
calibration within 12 hours.

Multi-Function Calibrator
Specifications
13
AC Voltage (Sine Wave) Specifications
NORMAL (Normal Output)
Range Frequency
Absolute Uncertaint
y
,
tcal ±5 °C
±(ppm of output +µV) Resolution Max Burden
Max Distortion
and Noise
10 Hz to 5 MHz
Bandwidth
90 days 1 year ±(% output +
floor)
1.0 mV to 10 Hz to 45 Hz 600 +6 800 +61µV 50 Ω0.15 +90 µV
32.999 mV 45 Hz to 10 kHz 120 +6 150 +6 0.035 +90 µV
10 kHz to 20 kHz 160 +6 200 +6 0.06 +90 µV
20 kHz to 50 kHz 800 +6 1000 +6 0.15 +90 µV
50 kHz to 100 kHz 3000 +12 3500 +12 0.25 +90 µV
100 kHz to 500 kHz 6000 +50 8000 +50 0.3 +90 µV [1]
33 mV to 10 Hz to 45 Hz 250 +8 300 +81µV 50 Ω0.15 +90 µV
329.999 mV 45 Hz to 10 kHz 140 +8 145 +8 0.035 +90 µV
10 kHz to 20 kHz 150 +8 160 +8 0.06 +90 µV
20 kHz to 50 kHz 300 +8 350 +8 0.15 +90 µV
50 kHz to 100 kHz 600 +32 800 +32 0.20 +90 µV
100 kHz to 500 kHz 1600 +70 2000 +70 0.20 +90 µV [1]
0.33 V to 10 Hz to 45 Hz 250 +50 300 +50 10 µV 10 mA 0.15 +200 µV
3.29999 V 45 Hz to 10 kHz 140 +60 150 +60 0.035 +200 µV
10 kHz to 20 kHz 160 +60 190 +60 0.06 +200 µV
20 kHz to 50 kHz 250 +50 300 +50 0.15 +200 µV
50 kHz to 100 kHz 550 +125 700 +125 0.20 +200 µV
100 kHz to 500 kHz 2000 +600 2400 +600 0.20 +200 µV [1]
3.3 V to 10 Hz to 45 Hz 250 +650 300 +650 100 µV 10 mA 0.15 +2 mV
32.9999 V 45 Hz to 10 kHz 125 +600 150 +600 0.035 +2 mV
10 kHz to 20 kHz 220 +600 240 +600 0.08 +2 mV
20 kHz to 50 kHz 300 +600 350 +600 0.2 +2 mV
50 kHz to 100 kHz 750 +1600 900 +1600 0.5 +2 mV
33 V to 45 Hz to 1 kHz 150 +2000 190 +2000 1 mV 5 mA, 0.15 +10 mV
329.999 V 1 kHz to 10 kHz 160 +6000 200 +6000 except 0.05 +10 mV
10 kHz to 20 kHz 220 +6000 250 +6000 20 mA for 0.6 +10 mV
20 kHz to 50 kHz 240 +6000 300 +6000 45 Hz to 0.8 +10 mV
50 kHz to 100 kHz 1600 [phone] +
50000
65 Hz 1.0 +10 mV
330 V to
1020 V
45 Hz to 1 kHz 250 [phone] +
10000
10 mV 2 mA,
except
0.15 +30 mV
1 kHz to 5 kHz 200 [phone] +
10000
6 mA for
45 Hz to
0.07 +30 mV
5 kHz to 10 kHz 250 [phone] +
10000
65 Hz 0.07 +30 mV
[1] Max Distortion for 100 kHz to 200 kHz. For 200 kHz to 500 kHz, the maximum distortion is 0.9% of
output + floor as shown.
Note
•Remote sensing is not provided. Output resistance is <5 mΩfor outputs ≥0.33 V. The AUX output resistance is
<1Ω. The maximum load capacitance is 500 pF, subject to the maximum burden current limits.

5520A
Getting Started
14
AC Voltage (Sine Wave) Specifications (cont)
AUX (Auxiliary Output) [dual output mode only] [1]
Absolute Uncertainty,
tcal ±5 °C
±(% of output +µV)
Max Distortion
and Noise
10 Hz to
100 kHz
Bandwidth
Range Frequency 90 days 1 year
Res-
olution
Max
Burden
±(% output +
floor)
10 Hz to 20 Hz 0.15 +370 0.2 +370 0.2 +200 µV
20 Hz to 45 Hz 0.08 +370 0.1 +370 0.06 +200 µV
45 Hz to 1 kHz 0.08 +370 0.1 +370 0.08 +200 µV
1 kHz to 5 kHz 0.15 +450 0.2 +450 0.3 +200 µV
5 kHz to 10 kHz 0.3 +450 0.4 +450 0.6 +200 µV
10 mV to
329.999 mV
10 kHz to 30 kHz 4.0 +900 5.0 +900
1 µV5mA
1 +200 µV
10 Hz to 20 Hz 0.15 +450 0.2 +450 0.2 +200 µV
20 Hz to 45 Hz 0.08 +450 0.1 +450 0.06 +200 µV
45 Hz to 1 kHz 0.07 +450 0.09 +450 0.08 +200 µV
1 kHz to 5 kHz 0.15 +1400 0.2 +1400 0.3 +200 µV
5 kHz to 10 kHz 0.3 +1400 0.4 +1400 0.6 +200 µV
0.33 V to
3.29999 V
10 kHz to 30 kHz 4.0 +2800 5.0 +2800
10 µV5mA
1 +200 µV
10 Hz to 20 Hz 0.15 +450 0.2 +450 0.2 +200 µV
20 Hz to 45 Hz 0.08 +450 0.1 +450 0.06 +200 µV
45 Hz to 1 kHz 0.07 +450 0.09 +450 0.08 +200 µV
1 kHz to 5 kHz 0.15 +1400 0.2 +1400 0.3 +200 µV
3.3 V to 5 V
5 kHz to 10 kHz 0.3 +1400 0.4 +1400
100 µV5mA
0.6 +200 µV
[1] There are two channels of voltage output. The maximum frequency of the dual output is 30 kHz.
Note
•Remote sensing is not provided. Output resistance is <5 mΩfor outputs ≥0.33 V. The AUX output resistance is
<1Ω. The maximum load capacitance is 500 pF, subject to the maximum burden current limits