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 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 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 or send the
product, with a description of the difficulty, postage and insurance prepaid (FOB Destination), to
the nearest Fluke authorized service center. 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 the failure was caused by misuse, alteration, accident or
abnormal condition of operation or handling, 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, WHETHER
ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE OR
ANY OTHER 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 of competent jurisdiction, such holding will not affect the validity or
enforceability of any other provision.
Fluke CorporationFluke Europe B.V.
P.O. Box 9090P.O. Box 1186
Everett, WA 98206-90905602 BD Eindhoven
U.S.A.The Netherlands
5/94
SAFETY TERMS IN THIS MANUAL
This instrument has been designed and tested in accordance with IEC publicat ion
1010-1 (1992-1), Safety Requirements for Electrical Measuring, Control and Labor atory
Equipment, and ANSI/ISA-S82.01-1994, and CAN/CSA-C22.2 No. 1010.1-92. This User
Manual contains information, warning, and caut ions t hat must be followed to ensure
safe operation and to maintain the instrument in a safe condition. Use of this equipment
in a manner not specified herein may impair the pr ot ection provided by the equipment.
This instrument is designed for IEC 1010-1 Inst allation Category II use. It is not
designed for connection to circuits rated over 4800 VA.
WARNING statements identify condit ions or practices that could result in personal injury
or loss of life.
CAUTION statements identify conditions or pr act ices t hat could result in damage to
equipment.
SYMBOLS MARKED ON EQUIPMENT
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 (s ee t he Index for references). This
symbol indicates that information about usage of a feature is contained in
the manual.
AC POWER SOURCE
The instrument is intended to operate from an ac power source that will not apply more
than 264V ac rms between the supply conductors or bet ween eit her 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, for fuse replacement use only t he specified unit: 100 or 120 V
operation, 2 ampere/250 volt time delay; 200 or 240 V oper ation, 1 ampere/250 volt time
delay.
GROUNDING THE INSTRUMENT
The instrument utilizes controlled overvoltage techniques that require the instrument to
be grounded whenever normal mode or common mode ac volt ages or t r ansient voltages
may occur. The enclosure must be grounded through t he gr ounding conductor of the
power cord, or through the rear panel gr ound binding post .
USE THE PROPER POWER CORD
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.
DO NOT OPERATE IN EXPLOSIVE ATM O SPHERES
To avoid explosion, do not operate the instrument in an atmosphere of explosive gas.
DO NOT REMOVE COVER DURING OPERATION
To avoid personal injury or death, do not remove the instrument cover without first
removing the power source connected to the rear panel. Do not operate the instrument
without the cover properly installed. Norm al calibration is accomplished with the cover
closed. Access procedures and the warnings for such procedures ar e cont ained both in
this manual and in the Service Manual. Service procedur es ar e f or qualified service
personnel only.
DO NOT ATTEMPT TO OPERATE IF PROTECTION MAY BE IMPAIRED
If the instrument appears damaged or operates abnormally, protection may be impair ed.
Do not attempt to operate t he inst r um ent under these conditions. Refer all questions of
proper instrument operation to qualif ied service personnel.
Table of Contents
ChapterTitlePage
1Introduction and Specifications........................................................ 1-1
The Fluke Model 5800A Oscilloscope Calibrator (Figure 1-1) is a precise instrument that
calibrates analog and digital oscilloscopes. Specifications are provided in this chapter.
To prevent electric shock or other possible injuries, t he 5800A
Calibrator must be operated in the way specif ied by this manual
or other documentation provided by Fluke. To avoid personal
injury and equipment damage, do not apply signal s t o any
output terminal.
Features of the 5800A Calibrator include the following:
• Automatic meter error calculation.
• X and D keys that change the output value to pre-determined cardinal values
for various functions.
• Programmable entry limits that prevent invalid amounts from being entered.
• Edge, Leveled Sine, Pulse, Marker, and Wave Generation modes.
Warning
Introduction and Specifications
Introduction
1
• Accurate oscilloscopic input impedance measurement.
• Tunnel Diode Pulse compatibility.
5800A
CALIBRATOR
OUTPUT
CHAN 1
EXT TRIG
130V
PEAK
20V PK
MAX
MAX
CHAN 1-5
CHAN 3
AUX
INPUT
20V PK
MAX
CHAN 2
CHAN 4
EXT TRIG
CHAN 5
20V PK
MAX
OPR
STBY
VOLT
EDGE
789
456
123
+
/
0•
LEVSINE
PREV
MARKER
MENU
NEW
µ
V
REF
m
n
dBm
k
sec
Hz
M
ENTER
MORE
MODES
CHAN
MULT
RESETCE
SETUP
AUX
INPUT
DIV
x
÷
EDIT
FIELD
Figure 1-1. 5800A Oscilloscope Calibrator
POWER
OQ001F.EPS
1-3
5800A
Operators Manual
1-2. Operation Overview
• External reference.
• Auxiliary input.
• 5-channel output (5-channel option). The 5-channel option allows you to calibrate up
to five oscilloscope channels simultaneously without changing cables.
• Simultaneous output of a signal and a trigger signal.
• 600 MHz, Leveled Sine wave 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 5800A.
• Pass-through RS-232-C serial data interface for communicating with the Unit Under
Test (UUT).
• Extensive automatic internal self testing and diagnostics of analog and digital
functions.
The 5800A 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 5800A operation into a wide variety of calibration requirements.
1-3. Local Operation
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.
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 when they are pressed.
1-4. Remote Operation (RS-232)
The Calibrator has two rear-panel serial data RS-232 ports: SERIAL 1 FROM HOST,
and SERIAL 2 TO UUT (Figure 1-2). Each port is dedicated to serial data
communications for operating and controlling the 5800A during calibration procedures.
For complete information on remote operations, see Chapter 5.
The SERIAL 1 FROM HOST serial data port connects a host terminal or personal
computer to the 5800A. You have several choices for sending commands to the 5800A:
you can enter commands from a terminal (for example, using the Terminal accessory
from Windows using a PC), 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 5800A can calibrate. (See Chapter 6 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
5800A (see Figure 1-2). 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 for a discussion of the UUT_*
commands.
1-4
Introduction and Specifications
Where To Go from Here
1
SERIAL 1 FROM HOST port
5800A
SERIAL 2
TO UUT port
RS-232 Remote Operation using the
SERIAL 1 FROM HOST port
SERIAL 1 FROM HOST port
5800A
RS-232 Remote Operation using the
SERIAL 1 FROM HOST and
SERIAL 2 TO UUT ports
Figure 1-2. RS-232 Remote Connections
COM port
PC or Terminal
COM port
PC or Terminal
Unit Under Test
oq002f.eps
1-5. Remote Operation (IEEE-488)
The 5800A 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 5800A 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 for a discussion of
the commands available for IEEE-488 operation.)
1-6. Where To Go from Here
To locate specific information concerning the installation and operation of the 5800A
calibrator, refer to the following list:
• Unpacking and setup: see Chapter 2
• Installation and rack mounting: see Chapter 2 and the rack mount kit instruction
sheet
• AC line power and interface cabling: see Chapter 2,
• Controls, indicators, and displays: see Chapter 3
• Front panel operation: see Chapter 4
• Cabling to a UUT (Unit Under Test): see Chapter 4
• Using the auxiliary amplifier: see Chapter 4
1-5
5800A
Operators Manual
1-7. Instruction Manuals
1-8. 5800A Operators Manual
• Remote operation (IEEE-488 or serial): see Chapter 5
• Accessories to the 5800A Calibrator: see Chapter 9
• Instrument specifications: see Chapter 1
The 5800A Manual Set provides complete information for operators and service or
maintenance technicians. The set includes:
• 5800A Operators Manual (PN 686318)
• 5800A Service Manual (PN 689411)
The operator manual ships with the instrument. The 5800A Service Manual is optional.
Order additional copies of the manuals separately using the part number provided. For
ordering instructions, refer to the Fluke Catalog, or ask a Fluke sales representative (see
Chapter 2 for more information).
This 5800A Operators Manual provides complete information for installing the 5800A
Oscilloscope 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 5800A 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 5800A
• Accessories
• Error Messages
1-9. 5800A Service Manual
The 5800A Service Manual can be ordered through your local Fluke Sales or Service
representative (see Chapter 2 for more information). The 5800A Service Manual
includes: appropriate theory of operation, performance testing, maintenance, calibration,
parts lists, and schematic diagrams.
1-10. Specifications
The following paragraphs describe the details for the 5800A specifications. All
specifications are valid after allowing a warm-up period of 30 minutes, or twice the time
the 5800A has been turned off. (For example, if the 5800A has been turned off for 5
minutes, the warm-up period is 10 minutes.)
1-6
All specifications apply for the temperature and time period indicated. For temperatures
outside of tcal + 5 °C (tcal is the ambient temperature when the 5800A was calibrated),
the temperature coefficient is less than 0.1 times the 1-year specification per °C (limited
to 0 °C - 50 °C).
Introduction and Specifications
Specifications
If you ordered the GHz Option, the following specification tables are superseded by the
tables with the same headings in Chapter 8:
Refer to Figure 1-3 for the dimensional outline of the 5800A Calibrator.
43.2 cm (17 in)
CALIBRATOR
5800A
1
CHAN 1
EXT TRIG
130V
PEAK
MAX
CHAN 1-5
CHAN 3
AUX
INPUT
OUTPUT
20V PK
MAX
20V PK
MAX
EXT TRIG
20V PK
CHAN 2
CHAN 4
CHAN 5
MAX
OPR
STBY
VOLT EDGE LEVSINE MARKER
789
456
123
+
0•
/
µ
m
ksec
M
PREV
MENU
NEW
V
REF
dBm
n
Hz
ENTER
CE
MORE
MODES
CHAN
MULTxDIV
RESET
SETUP
INPUT
AUX
÷
EDIT
FIELD
POWER
I
O
17.8 cm
(7 in)
47.0 cm (18.5 in)6.4 cm
(2.5 in)
For Cable
Access
oq003f.eps
Figure 1-3. 5800A Calibrator Dimensional Outline
1-7
5800A
Operators Manual
1-11. General Specifications
Warmup TimeTwice the time since last warmed up, to a maximum of 30 minutes
Settling Time5 seconds or faster for all functions and ranges
Standard InterfacesIEEE-488 (GPIB), RS-232
Temperature PerformanceOperating: 0 °C to 50 °C
Calibration (tcal): 15 °C to 35 °C
Storage: -20 °C to 70 °C
Electromagnetic
Compatibility
Temperature CoefficientTemperature Coefficient for temperatures outside tcal +5 °C is 0.1X/°C of
Relative HumidityOperating: <80 % to 30 °C, <70 % to 40 °C,<40 % to 50 °C
AltitudeOperating: 3,050 m (10,000 ft) maximum
SafetyDesigned to comply with IEC 1010-1 (1992-1); ANSI/ISA-S82.01-1994;
Analog Low Isolation20 V
EMCComplies with EN 61326-1
Line PowerLine Voltage (selectable): 100 V, 120 V, 220 V, 240 V
Power Consumption250 VA
Designed to operate in Standard Laboratory environments where the
Electromagnetic environment is highly controlled. If used in areas with
Electromagnetic fields >1 V/m, there could be errors in output values.
1-year specification.
Storage: <95 %, noncondensing
Nonoperating: 12,200 m (40,000 ft) maximum
CAN/CSA-C22.2 No. 1010.1-92
Line Frequency: 47 to 63 Hz
Line Voltage Variation: +10 % about line voltage setting
1-8
DimensionsHeight: 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.
Weight20 kg (44 pounds)
Introduction and Specifications
1-12. Voltage Output Specifications
Note
If you ordered the GHz Option, the following specification table is
superseded by the table with the same heading in Chapter 8.
1 V, 2.5 V
Frequency Range1 kHz to 10 MHz± (1 ppm of setting)
Typical Jitter, edge to trigger< 5 ps (p-p)
Leading Edge Aberrations[2]within 2 ns from 50 % of rising
edge
2 to 5 ns
5 to 15 ns< (1 % of output + 2 mV)
after 15 ns< (0.5 % of output + 2 mV)
1-Year Absolute
Uncertainty, tcal ± 5 °C
< (3 % of output + 2 mV)
< (2 % of output + 2 mV)
1-10
Typical Duty Cycle45 % to 55 %
[1] Frequency range above 2 MHz has rise time specification 300 ps typical.
[2] Below 250 mV, the leading edge aberrations are typical. All readings are referenced to a Tek
TDS820 8 GHz scope or a Tek 11801 mainframe with an SD26 or SD22 option.
1-14. Leveled Sine Wave Specifications
Note
If you ordered the GHz Option, the following specification table is
superseded by the table with the same heading in Chapter 8.
Table 1-3. Leveled Sine Wave Specifications
Introduction and Specifications
Specifications
1
Leveled Sine
Wave
Characteristics
into 50 Ω
Amplitude Characteristics
Range (p-p)5 mV to 5.5 V
Resolution< 100 mV:3 digits
Adjustment
Range
1-Year Absolute
Uncertainty,
tcal ± 5 °C
Flatness [1]
(relative to
50 kHz)
Short-Term
Amplitude
Stability
50 kHz
(reference)
≥ 100 mV:4 digits
continuously adjustable
± (2 % of
output +
300 µV)
not applicable± (1.5 % of
50 kHz to
100 MHz
± (3.5 % of
output +
300 µV)
output +
100 µV)
Frequency Range
100 MHz to
300 MHz
± (4 % of
output +
300 µV)
± (2 % of
output+
100 µV)
≤ 1 %[2]
300 MHz
to 500
MHz
± (5.5 % of
output +
300 µV)
± (3.5 % of
output +
100 µV)
500 MHz to
600 MHz
± (6 % of
output +
300 µV)
± (4 % of
output +
100 µV)
Frequency Characteristics
Resolution10 kHz
1-Year Absolute
Uncertainty,
tcal ± 5 °C
Distortion Characteristics [3]
2nd Harmonic≤ -33 dBc
3rd and Higher
Harmonics
[1] As measured near Oscilloscope bandwidth frequency.
[2] Within one hour after reference amplitude setting, provided temperature varies no more than ± 5 °C.
[3] Harmonics above 500 MHz are typical.
± 1 ppm
≤ -38 dBc
1-11
5800A
Operators Manual
1-15. Time Marker Specifications
Note
If you ordered the GHz Option, the following specification table is
superseded by the table with the same heading in Chapter 8.
Table 1-4. Time Marker Specifications
Time Marker into 50 Ω5 s to
50 ms
Wave Shapespike or
square
Typical Output Level> 1 V pk [1]> 1 V pk [1]> 1 V pk [1]>1 V pk [1]> 1 V p-p
Typical Jitter (p-p)<10 ppm< 1 ppm< 1 ppm<1 ppm<1 ppm
Sequence5-2-1 from 5 s to 2 ns (e.g., 500 ms, 200 ms, 100 ms )
Adjustment RangeAt least ± 10 % around each sequence value indicated above.
Amplitude Resolution4 digits
1-Year Absolute
Uncertainty, tcal ± 5 °C [3]
[1] Typical rise time of square wave and 20%-pulse (20 % duty cycle pulse) is < 1.5 ns.
[2] With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus
5 µHz.
[3] Time marker uncertainty is ±50 ppm when measured off of cardinal points:
1-Year Absolute Uncertainty,
tcal ± 5 °C, 10 Hz to 10 kHz
Sequence1-2-5 (e.g., 10 mV, 20 mV, 50 mV)1-2-5 (e.g., 10 mV, 20 mV, 50 mV)
Typical DC Offset Range0 to ± (≥40 % of p-p amplitude) [1]0 to ± (≥40 % of p-p amplitude) [1]
Ramp Linearity [2]better than 0.1 % 10 Hz to 10 kHz
Frequency
Range0.01 Hz to 100 kHz0.01 Hz to 100 kHz
Resolution4 or 5 digits depending upon
1-Year Absolute Uncertainty,
tcal ± 5 °C [3]
[1] The DC offset plus the wave signal must not exceed 30 V rms.
[2] Applies to the 10 % to 90 % of the triangle waveform 500 mV p-p to 10 V p-p.
[3] Uncertainty below 10 Hz is typical.
[4] With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus 5
µHz.
Square Wave and Sine Wave
into 50 Ω or 1 MΩ
into 1 MΩ: 1.8 mV to 55 V p-p
into 50 Ω: 1.8 mV to 2.5 V p-p
± (3 % of p-p output + 100 µV)± (3 % of p-p output + 100 µV)
If you ordered the GHz Option, the following specification table is
superseded by the table with the same heading in Chapter 8.
Table 1-6. Pulse Generator Specifications
1 ns = Pulse width = 9.9 ns20 ms to 200 ns
10 ns = Pulse width = 79.9 ns20 ms to 1 µs
80 ns = Pulse width = 500 ns20 ms to 10 µs
Resolution4 or 5 digits depending upon frequency and width
1-Year absolute Uncertainty, tcal ± 5°C± 1 ppm
Pulse Skew with Trigger [3]
Range [2]+30 ns to -10 ns with 250 ps resolution
Uncertainty± 500 ps
[1] May generate pulses below 1 ns but pulse width accuracy is not specified.
[2] Assumes that trigger used in divide by 1 mode. Other divide modes are not specified.
[3] Pulse skew measured from 30% of trigger signal amplitude to 30% of pulse amplitude range.
1-18. Trigger Signal Specifications (Pulse Funct ion)
Table 1-7. Trigger Signal Specifications (Pulse Function)
Pulse PeriodDivision RatioAmplitude into 50 Ω (p-p)Typical Rise Time
20 ms to 200 nsoff/1/10/100≥ 1 V≤ 2 ns
1-14
Introduction and Specifications
1-19. Trigger Signal Specifications (Ti me Marker Function)
Table 1-8. Trigger Signal Specifications (Time Marker Function)
Time Marker PeriodDivision RatioAmplitude into 50 Ω (p-p)Typical Rise Time
5 s to 750 nsoff/1≥ 1 V≤ 2 ns
34.9 ms to 7.5 nsoff/1/10≥ 1 V≤ 2 ns
34.9 ms to 2 nsoff/1/10/100≥ 1 V≤ 2 ns
1-20. Trigger Signal Specifications (Edge Functi on)
Table 1-9. Trigger Signal Specifications (Edge Function)
Specifications
1
Edge Signal
Frequency
1 kHz to 10 MHzoff/1≥ 1 V≤ 2 ns40 ns
Division
Ratio
Typical Amplitude
into 50 Ω (p-p)
Typical Rise TimeTypical Lead Time
1-21. Trigger Signal Specifications (Square Wave Volt age Function)
Table 1-10. Trigger Signal Specifications (Square Wave Voltage Function)
AC Voltage
Frequency
10 Hz to 10 kHzoff/1≥ 1 V≤2 ns1 µs
Division
Ratio
Typical Amplitude
into 50 Ω (p-p)
Typical Rise TimeTypical Lead Time
1-22. Trigger Signal Specifications
Table 1-11. TV Trigger Signal Specifications
Trigger Signal TypeParameters
Frame FormatsSelectable NTSC, SECAM, PAL, PAL-M
PolarityPositive or negative
Amplitude into 50 Ω (p-p)Adjustable 0 to 1.5 V p-p into 50 ohm load, (±7 % accuracy)
Line MarkerSelectable Line Video Marker
1-23. Tunnel Diode Drive Capability
Table 1-12. Tunnel Diode Drive Capability
TD Pulse DriveSquare wave at 100 Hz to 100 kHz with variable amplitude of 60 V to 100 V p-p
The Overload test function applies dc or ac (1 kHz square wave) power into the 50 Ω
oscilloscope input and monitors the current. A time measurement counter indicates the
time duration of the applied overload signal. When the input protection circuit reacts and
opens up the 50 Ω load, the calibrator indication is set to ‘off’ on the right hand display.
In order to prevent front end damage to the oscilloscope, a limited amount of energy is
applied by a user selectable time limit.
Table 1-15. Overload Measurement Specifications
Source
Voltage
5 V to 9 V100 mA to 180 mA10 mAsetable 1 s to 60 s
Typical ‘On’ current
indication
Typical ‘Off’ current
indication
Maximum Time Limit DC or
(1 kHz)
1-27. External Reference Input Specifications
The External Reference Input selection allows the user to provide their own high
stability 10 MHz reference clock for the 5800A for all functions except the Wave
Generator function. For all other modes, the frequency stability is determined by the
external reference stability. The external reference input must be between 1 to 5 V p-p
1-28. Auxiliary Input/Output Specifications
Maximum input voltage into the auxiliary input is 40 V p-p.