Fluke 712B/EN Manual de usuario

January 2014

All product names are trademarks of their respective companies.

712B

RTD Calibrator

Users Manual

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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.

11/99

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Table of Contents

Title Page

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

How to Contact Fluke..................................................................................................... 1

Safety Information .......................................................................................................... 3

Safe Working Practices.................................................................................................. 3

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

Input and Output Terminals............................................................................................ 7

Keys ............................................................................................................................... 9

Display ........................................................................................................................... 11

Auto Power-Off............................................................................................................... 13

Auto Backlight-Off .......................................................................................................... 13

Contrast Adjustment....................................................................................................... 14

Magnet Mounting and Hanging Strap............................................................................. 15

Measure mA Current...................................................................................................... 16

Measure Temperature.................................................................................................... 16

Use Resistance-Temperature Detectors (RTDs)....................................................... 16

Set Temperature Unit ................................................................................................ 16

Source Temperature Signals.......................................................................................... 19

Simulate RTDs ............................................................................................................... 20

Scale mA Channel to Temperature ................................................................................ 22

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712B

Users Manual

Set 0 % and 100 % Output Parameters......................................................................... 22

Step and Ramp Modes .................................................................................................. 23

Select Step or Ramp Mode....................................................................................... 23

Auto Storage of Settings ........................................................................................... 23

Replace the Batteries .................................................................................................... 24

Maintenance .................................................................................................................. 25

Clean the Product ..................................................................................................... 25

Service Center Calibration or Repair ........................................................................ 25

Replacement Parts ........................................................................................................ 26

Specifications ................................................................................................................ 28

DC mA Measurement ............................................................................................... 28

Ohms Measurement ................................................................................................. 28

Ohms Source............................................................................................................ 29

RTD Input and Output............................................................................................... 30

General Specifications .............................................................................................. 32

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iii

List of Tables

Table Title Page

1. Summary of Source and Measure Functions ........................................................................ 2

2. International Electrical Symbols ............................................................................................ 4

3. Input/Output Terminals and Connectors................................................................................ 8

4. Key Functions........................................................................................................................ 10

5. Elements on the Display........................................................................................................ 12

6. RTD Types Accepted ............................................................................................................ 17

7. Replacement Parts................................................................................................................ 26

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List of Figures

Figure Title Page

1. Standard Equipment.............................................................................................................. 6

2. Input/Output Terminals and Connectors................................................................................ 7

3. Keys ...................................................................................................................................... 9

4. Elements of a Typical Display ............................................................................................... 11

5. Adjust the Contrast................................................................................................................ 14

6. Magnet Mounting with Hanging Strap ................................................................................... 15

7. Measure Temperature with an RTD ...................................................................................... 18

8. Source Temperature Signals................................................................................................. 19

9. Connection for Simulating a 3 and 4 Wire RTD..................................................................... 21

10. Replace the Batteries ............................................................................................................ 24

11. Replacement Parts................................................................................................................ 27

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Introduction

Fluke 712B RTD Calibrator (the Product) is a handheld,

battery-operated instrument that measures and sources a

variety of RTDs. It also has an isolated channel to

measure 4-20 mA. See Table 1.

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712B

Users Manual

Table 1. Summary of Source and Measure Functions

Function Measure Source

Resistance 0 Ωto 4000 Ω1 Ωto 4000 Ω

RTD

(Resistance-Temperature Detector)

Pt100 Ω(385)

Pt100 Ω(3926)

Pt100 Ω(3916)

Pt200 Ω(385)

Pt500 Ω(385)

Pt1000 Ω(385)

Ni120 Ω(672)

Pt10 Ω(385)

Pt50 Ω(385)

Cu10 Ω(427)

Cu50 Ω(427)

Cu100 Ω(427)

YSI400

Other functions Step, Ramp, Isolated mA channel for 4-20 mA measurement

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RTD Calibrator

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.

International electrical symbols used on the Product and

in this manual are explained in Table 2.

Safe Working Practices

Review the safety information and comply with all safe

working practices.

Warning

To prevent possible electrical shock, fire, or

personal injury:

•Carefully read all instructions.

•Read all safety Information before you

use the Product.

•Use the Product only as specified, or the

protection supplied by the Product can

be compromised.

•Do not use the Product around explosive

gas, vapor, or in damp or wet

environments.

•Never apply more than 30 V between any

two terminals, or between any terminal

and earth ground.

•Do not connect any test leads to

voltages above 30 V when used with the

product, even if ratings above 30 V

appear on the test leads.

•Do not use the Product if it is damaged.

•The battery door must be closed and

locked before you operate the Product.

•Remove all probes, test leads, and

accessories before the battery door is

opened.

•Remove the input signals before you

clean the Product.

•Have an approved technician repair the

Product.

•Replace the batteries when the low

battery indicator shows to prevent

incorrect measurements.

For safe operation and maintenance of the

Product:

•Repair the Product before use if the

battery leaks.

•Remove the batteries if the Product is

not used for an extended period of time,

or if stored in temperatures above 50 °C.

If the batteries are not removed, battery

leakage can damage the Product.

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712B

Users Manual

Table 2. International Electrical Symbols

Earth Ground Battery

Conforms to relevant Australian

Standards. Risk of danger. Important information. See Manual.

Inspected and licensed by TÜV Product

Services. Conforms to European Union directives.

CAT II

MEASUREMENT CATEGORY II is

applicable to test and measuring circuits

connected directly to utilization points

(socket outlets and similar points) of the

low voltage MAINS installation.

CAT III

MEASUREMENT CATEGORY III is applicable to test and

measuring circuits connected to the distribution part of the

building’s low-voltage MAINS installation.

CAT IV

MEASUREMENT CATEGORY IV is

applicable to test and measuring circuits

connected at the source of the building’s

low voltage MAINS installation.

Conforms to relevant North American Safety Standards.



This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label indicates that you

must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the

equipment types in the WEEE Directive Annex I, this product is classed as category 9 "Monitoring and Control

Instrumentation" product. Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling

information.

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