Fluke 721 Manuale utente

October 2013

All product names are trademarks of their respective companies.

721

Pressure Calibrator

Users Manual

LIMITED WARRANTY AND LIMITATION OF LIABILITY

This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This

warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or

abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Fluke’s behalf.

To obtain service during the warranty period, 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 problem.

THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR

PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries

do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of

liability may not apply to you.

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

Table of Contents

Title Page

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

Contact Fluke ................................................................................................................. 1

Safety Information .......................................................................................................... 2

Symbols ......................................................................................................................... 4

Standard Equipment....................................................................................................... 5

Product Features............................................................................................................ 5

Display....................................................................................................................... 8

Language Selection................................................................................................... 9

Home Menu Functionality.......................................................................................... 10

Backlight Use ............................................................................................................ 10

Zero Function ............................................................................................................ 10

External Sensor (Absolute)........................................................................................ 10

Menus ............................................................................................................................ 11

SWITCHTEST ........................................................................................................... 11

%ERROR .................................................................................................................. 14

721

Users Manual

MINMAX ................................................................................................................... 17

SET UNITS ............................................................................................................... 18

CONTRAST .............................................................................................................. 19

Lock and Unlock Configurations (CFG) .................................................................... 19

AUTO OFF................................................................................................................ 20

RESOLUTION........................................................................................................... 21

HART ........................................................................................................................ 21

PROBE TYPE........................................................................................................... 22

DAMP ....................................................................................................................... 24

Measure Pressure ......................................................................................................... 24

Media Compatibility ....................................................................................................... 25

Measurements............................................................................................................... 25

Transmitter Calibration .................................................................................................. 28

mA Input Function..................................................................................................... 28

Pressure-to-Current Transmitter Calibration ............................................................. 28

Ranges and Resolution............................................................................................. 30

Maintenance .................................................................................................................. 31

Replace the Batteries................................................................................................ 31

Clean the Product ..................................................................................................... 32

User-Replaceable Parts and Accessories ..................................................................... 33

General Specifications................................................................................................... 35

Environmental........................................................................................................... 35

Electrical and Temperature Measurement (1 year)................................................... 35

Physical .................................................................................................................... 36

iii

List of Tables

Table Title Page

1. Symbols................................................................................................................................. 4

2. Product Features................................................................................................................... 7

3. Display Functions .................................................................................................................. 9

4. Ranges and Resolutions ....................................................................................................... 30

5. User-Replaceable Parts and Accessories ............................................................................. 33

721

Users Manual

List of Figures

Figure Title Page

1. Product Interface ................................................................................................................... 6

2. Display................................................................................................................................... 8

3. Pressure Switch Connection ................................................................................................. 12

4. Percent Error Function Connection ....................................................................................... 15

5. Temperature Measurement with RTD Probe......................................................................... 23

6. Measure Current ................................................................................................................... 26

7. Voltage Measurement ........................................................................................................... 27

8. Pressure-to-Current Transmitter Connections....................................................................... 29

9. Battery Replacement............................................................................................................. 32

10. User-Replaceable Parts and Accessories ............................................................................. 34

721

Users Manual

Introduction

The 721 Pressure Calibrator (the Product) is a simple to

use and versatile pressure calibrator. The two internal

pressure sensors are configured with different pressure

measurement ranges. One range for lower pressure (P1)

and one range for higher pressure (P2). The Product

features inputs for mA, switch contacts, and an RTD

probe. An external pressure module option gives a wider

range of pressure calibration options that include absolute

and differential pressure measurement.

Contact Fluke

To contact Fluke, call one of the following telephone

numbers:

•Technical Support USA: 1-800-44-FLUKE

(1-800-443-5853)

•Calibration/Repair USA: 1-888-99-FLUKE

(1-888-993-5853)

•Canada: 1-800-36-FLUKE (1-800-363-5853)

•Europe: +31 402-675-200

•Japan: +81-3-6714-3114

•Singapore: +65-6799-5566

•Anywhere in the world: +1-425-446-5500

Or, visit Fluke's website at www.fluke.com.

To register your product, visit http://register.fluke.com.

To download manuals, or to view, print, or download the

latest manual supplement, visit

http://us.fluke.com/usen/support/manuals.

721

Users Manual

Safety Information

A Warning identifies conditions and procedures that are

dangerous to the user. A Caution identifies conditions

and procedures that can cause damage to the Product or

the equipment under test.

 Warning

To prevent possible electrical shock, fire, or

personal injury:

•Only assemble and operate high-

pressure systems if you know the

correct safety procedures. High-pressure

liquids and gases are hazardous and the

energy from them can be released

without warning.

•Read all safety information before you

use the Product.

•Carefully read all instructions.

•Do not use the Product around explosive

gas or vapor.

•Use the correct terminals, function, and

range for measurements.

•Do not apply more than the rated

voltage, between the terminals or

between each terminal and earth ground.

•Do not touch voltages > 30 V ac rms,

42 V ac peak, or 60 V dc.

•Remove all probes, test leads, and

accessories before the battery door is

opened.

•Do not exceed the Measurement

Category (CAT) rating of the lowest rated

individual component of a Product,

probe, or accessory.

•Do not use and disable the Product if it

is damaged.

•Remove the input signals before you

clean the Product.

•Use only specified replacement parts.

•Have an approved technician repair the

Product.

•Use the Product only as specified, or the

protection supplied by the Product can

be compromised.

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