Fluke 271 User Manual

PN 2423297
January 2005

© 2005 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

271

Programmable 10 MHz DDS Function Generator

Getting Started Manual

®

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.

11/99 To register your product online, visit

Fluke Europe B.V.
P.O. Box 1186,
5602 BD Eindhoven,
The Netherlands

register.fluke.com

Safety

This function generator is a Safety Class I instrument according to IEC classification and has been designed to meet the re­quirements of EN61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control and Labor atory Use). It is
an Installation Category II instrument intended for operation from a normal single phase supply.

This instrument has been tested in accordance with EN61010-1 and has been supplied i n a safe condition. This Getting
Started Manual contains some information and warnings which must be followed by the user to ensure safe operation a nd to
retain the instrument in a safe condition.

This instrument has been designed for indoor use in a Pollution Degree 2 environment in the temperature range 5 °C to
40 °C, 20 % - 80 % RH (non-condensing). It may occasionally be subjected to temperatures between +5 °C and -10 °C with­out degradation of its safety. Do not operate the instrument while condensation is present.

Use of this instrument in a manner not specified by these instructions may impair the safety protection provided. Do not op­erate the instrument outside its rated supply voltages or environmental range.

Warning

To avoid the possibility of electric shock:

• This instrument must be earthed.

• Any interruption of the mains earth conductor inside or outside the instrument will make the instrument

dangerous. Intentional interruption is prohibited. The protective action must not be negated by the use
of an extension cord without a protective conductor.

• When the instrument is connected to its supply, terminals may be live and opening the covers or re­moval of parts (except those to which access can be gained by hand) is likely to expose live parts.

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Getting Started Manual

• The apparatus shall be disconnected from all voltage sources before it is opened for any adjustment,
replacement, maintenance or repair.

• Any adjustment, maintenance and repair of the opened instrument under voltage shall b e avoided as
far as possible and, if inevitable, shall be carried out only by a skilled person who is aware of the haz­ard involved.

• Make sure that only fuses with the required rated current and of the specified type are used fo r re­placement. The use of makeshift fuses and the short-circuiting of fuse holders is prohibited.

Caution

If the instrument is clearly defective, has been subject to mechanical damage, excessive moisture or
chemical corrosion the safety protection may be impaired and the apparatus should be withdrawn from use
and returned for checking and repair.

Note

This instrument uses a Lithium button cell for non-volatile memory battery back-up. Typical battery life is 5 years. In
the event of replacement becoming necessary, replace only with a cell of the correct type, a 3 V Li/Mn02 20 mm
button cell type 2032. Do not mix with solid waste stream. Do not cut open, incinerate, expose to temperatures
above 60 °C or attempt to recharge. Used batteries should be disposed of by a qualified recycler or hazardous ma­terials handler. Contact your authorized Fluke Service Center for recycling information.

Caution

Do not wet the instrument when cleaning it and in particular use on ly a soft dry cloth to clean the LCD win­dow.

ii

Safety

The following symbols are used on the instrument and in this manual:

Caution - refer to the accompanying documentation, incorrect operation may damage the instrument.
Terminal connected to chassis ground.
Mains supply OFF.
Mains supply ON.
Alternating current.
Warning - hazardous voltages may be present.

(continued)

iii

EMC Compliance

This instrument meets the requirements of the EMC Directive 89/336/EEC.
Compliance was demonstrated by meeting the test limits of the following standards:

Emissions

EN61326 (1998) EMC product standard for Electrical Equipment for Measurement, Control and Labor atory Use. Test limits
used were:

a) Radiated: Class B
b) Conducted: Class B
c) Harmonics:EN61000-3-2 (2000) Class A The instrument is Class A by product category.

Immunity

EN61326 (1998) EMC product standard for Electrical Equipment for Measurement, Control and Laboratory Use. Test meth­ods, limits and performance achieved were:

a) EN61000-4-2 (1995) Electrostatic Discharge: 4 kV air, 4 kV contact Performance A.
b) EN61000-4-3 (1997) Electromagnetic Field: 3 V/m, 80 % AM at 1 kHz Performance A.
c) EN61000-4-11 (1994) Voltage Interrupt: 1 cycle, 100 % Performance A.
d)

EN61000-4-4 (1995) Fast Transient: 1 kV peak (ac line), 0.5 kV peak
(signal lines and RS232/GPIB ports)

Performance A.

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Getting Started Manual

e) EN61000-4-5 (1995) Surge: 0.5 kV (line to line), 1 kV (line to ground) Performance A.
f)

EN61000-4-6 (1996) Conducted RF: 3 V, 80 % AM at 1kHz

(ac line only; signal connections <3 m not tested)
According to EN61326 the definitions of performance criteria are:
Performance criterion A: ‘During test normal performance within the specification limits.’
Performance criterion B: ‘During test, temporary degradation, or loss of function or performance which is self-recovering’.

Performance A.

Performance criterion C:

‘During test, temporary degradation, or loss of function or performance which requires operator
intervention or system reset occurs.’

vi

Table of Contents

Title Page

Introduction .................................................................................................................... 1

Before You Start............................................................................................................. 1

Mains Supply Voltage................................................................................................ 1

Externally Applied Voltages....................................................................................... 2

Controls and Connections.............................................................................................. 3

The Liquid Crystal Display......................................................................................... 4

Controls..................................................................................................................... 4

Function Keys....................................................................................................... 4

FIELD and DIGIT Keys and the Rotary Control.................................................... 5

Numeric, Units and SET Keys .............................................................................. 6

MODE Keys.......................................................................................................... 7

UTILITIES Keys.................................................................................................... 7

OUTPUT Key........................................................................................................ 7

Front Panel Inputs and Outputs................................................................................. 8

MAIN OUT............................................................................................................ 8

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Getting Started Manual

AUX OUT............................................................................................................. 8

EXT TRIG............................................................................................................. 8

Rear Panel Connectors............................................................................................. 9

CLOCK IN/OUT.................................................................................................... 9

VCA IN................................................................................................................. 9

SYNC OUT........................................................................................................... 9

TRIG/SWEEP OUT.............................................................................................. 10

RS232 and GPIB Interface Connectors................................................................ 10

Using the Instrument...................................................................................................... 11

Starting up................................................................................................................. 11

Generating Continuous Signals ................................................................................ 12

Generating Swept Signals......................................................................................... 16

Generating a Triggered Burst.................................................................................... 18

Special Waveforms................................................................................................... 19

Saving and Recalling Settings .................................................................................. 23

Arbitrary Waveforms ................................................................................................. 23

Other Functions and Waveforms .............................................................................. 24

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Getting Started

Introduction

This Getting Started Manual for the model 271

Programmable 10 MHz DDS Function Generator is
designed to provide an initial understanding of the way
the instrument is operated. The manual is set out in the
form of a tutorial, guiding you through a series of basic
front panel operations in order to familiarize you with the
controls and the modes of operation.

The Users Manual contains detailed specifications and

descriptions of all the functions and operations accessible
both from the front panel and by means of the remote
interfaces.

Before You Start

Mains Supply Voltage

Check that the instrument operating voltage marked on
the rear panel is correct for the local supply. If it is
necessary to change the operating voltage, follow the

procedure described in Appendix A of the Users Manual.

1