Fluke 719 Series Manuale utente

August 2008

All product names are trademarks of their respective companies.

719 Series

Pressure Calibrator with Electric Pump

Users Manual

LIMITED WARRANTY AND LIMITATION OF LIABILITY

This Fluke product will be free from defects in material and workmanship for three years (one year for pump assembly) from

the date of purchase. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse 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, send your defective Calibrator to the nearest Fluke Authorized 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

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

Getting Acquainted with the Calibrator ........................................................................... 5

HART Resistor........................................................................................................... 8

Power Saver.............................................................................................................. 8

Switch Test..................................................................................................................... 8

Zeroing with Absolute Pressure Modules ....................................................................... 9

Set Maximum Pressure Limit ......................................................................................... 10

Calibrating a P/I Transmitter........................................................................................... 10

Using the Internal Pump................................................................................................. 10

Pump Valve Assembly Cleaning Instructions ................................................................. 15

Using an External Pump................................................................................................. 15

External Fluke Pressure Module Compatibility ............................................................... 17

Supplying Loop Power ................................................................................................... 18

mA Modes ...................................................................................................................... 18

719 Series

Users Manual

Sourcing 4 to 20 mA ...................................................................................................... 19

Simulating a 4 to 20mA Transmitter............................................................................... 19

Percent Error Setup ....................................................................................................... 21

Maintenance .................................................................................................................. 21

In Case of Difficulty ................................................................................................... 21

Cleaning.................................................................................................................... 21

Replacing the Batteries............................................................................................. 22

Calibration ..................................................................................................................... 22

Parts and Accessories ................................................................................................... 23

Specifications ................................................................................................................ 26

Pressure Sensor Input .............................................................................................. 26

Pressure Module Input.............................................................................................. 26

DC mA Measure and Source .................................................................................... 26

Loop Supply.............................................................................................................. 26

Pressure Source ....................................................................................................... 26

General Specifications .............................................................................................. 27

Contacting Fluke............................................................................................................ 27

iii

List of Tables

Table Title Page

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

2. Front Panel Features............................................................................................................. 5

3. Pushbutton Functions............................................................................................................ 6

4. Pump Features...................................................................................................................... 7

5. Recommended Pressure Modules ........................................................................................ 14

6. Fluke Pressure Module Compatibility .................................................................................... 17

7. Replacement Parts................................................................................................................ 23

719 Series

Users Manual

List of Figures

Figure Title Page

1. Connection Technique .......................................................................................................... 4

2. Front Panel Features............................................................................................................. 5

3. Pump Features...................................................................................................................... 7

4. Internal Pressure Sensor with Internal Pump ........................................................................ 12

5. Pressure Module with Internal Pump..................................................................................... 13

6. Pressure Module with External Pump ................................................................................... 16

7. Sourcing Loop Voltage .......................................................................................................... 18

8. Sourcing mA Connections ..................................................................................................... 19

9. Connections for Simulating a 4 to 20 mA Transmitter ........................................................... 20

10. Battery Replacement ............................................................................................................. 22

11. Replacement Parts................................................................................................................ 25

719 Series

Users Manual

Introduction

The 719 30G and 100G Series Pressure Calibrators (the

Calibrator) perform the following functions:

•Calibrate P/I (pressure to current) transmitters

•Calibrate I/P (current to pressure) devices

•Identify the set, reset and deadband of of pressure

switches

•Measure pressure via a 1/8-in. NPT pressure fitting

and an internal pressure sensor or via a Fluke 700

Series Pressure Module

•Source pressure via electric pump

•Measure, source, and simulate current up to 24 mA

•Simultaneously displays pressure and current

•Supply loop voltage

•Calculate mA percentage in Percent Mode

•Calculate mA error % in Percent Error Mode

•Switch between pressure/vacuum control

The Calibrator features:

•Precision air bleed for fine control

•Fine vernier adjustment for the pump

•A serviceable electric pump

•Pressure limit settings

•HART resistor mode

The Calibrator ships with:

•holster

•two installed 9 V alkaline batteries

•TL75 test leads

•AC70A alligator clips

•hose kit

•Product Overview Manual

•CD-ROM (Users Manual)

719 Series

Users Manual

The Calibrator makes 5-digit pressure measurements in

the units shown below:

•Psi

•inH2O at 4 °C

•inH2O at 20 °C

•kPa

•cmH2O at 4 °C

•cmH2O at 20 °C

•bar

•mbar

•kg/cm2

•inHg

•mmHg

For pressure modules, full-scale readings for all pressure

ranges can be made in:

•Psi

•kPa

•inHg

To avoid display overflow, full scale readings are limited

to 1000 psi in cmH2O, mbar, and mmHg units, and

3000 psi in inH2O units. Pressures of at least 15 psi must

be measured for meaningful readings in bar and kg/cm2

units.

Safety Information

A Warning identifies conditions and actions that pose

hazard(s) to the user; a Caution identifies conditions and

actions that may damage the Calibrator or the equipment

under test. Symbols used in this manual and on the

Calibrator are listed in Table 1.

XWWarning

To avoid possible electric shock or personal

injury:

•Use the Calibrator only as specified in

this manual, otherwise the protection

provided by the Calibrator may be

impaired.

•Never apply more than 30 V, including

transients, between the mA terminals, or

between either of the mA terminals and

earth ground.

•The Calibrator is rated for CAT I

measurement only. Do not use the

Calibrator to make measurements in a

CAT II, CAT III, or CAT IV environments.

CAT I equipment is designed to protect

against transient from high-voltage, low-

energy sources, such as electronic

circuits or a copy machine

•Remove the test leads from the

Calibrator before opening the battery

door.

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