Fluke 712B Manual de usuario

January 2014

All product names are trademarks of their respective companies.

712B

RTD Calibrator

Users Manual

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

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

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

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

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

712B

Users Manual

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

712B

Users Manual

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.

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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