Fluke 712B Operating Manual
712B
RTD Calibrator
Users Manual
January 2014
© 2014 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
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.
11/99
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
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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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
ii
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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vi
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.
How to 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: +81-03-6714-3114
• Singapore: +65-6799-5566
• Mainland China: +86-400-810-3435
• 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 see, print, or download the latest manual supplement,
visit http://us.fluke.com/usen/support/manuals.
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Table 1. Summary of Source and Measure Functions
Function Measure Source
Resistance 0 Ω to 4000 Ω 1 Ω to 4000 Ω
RTD
(Resistance-Temperature Detector)
Other functions Step, Ramp, Isolated mA channel for 4-20 mA measurement
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
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RTD Calibrator
Safety Information
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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Table 2. International Electrical Symbols
Earth Ground Battery
4
CAT II
CAT IV
Conforms to relevant Australian
Standards.
Inspected and licensed by TÜV Product
Services.
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.
MEASUREMENT CATEGORY IV is
applicable to test and measuring circuits
connected at the source of the building’s
low voltage MAINS installation.
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.
CAT III
Conforms to relevant North American Safety Standards.
Risk of danger. Important information. See Manual.
Conforms to European Union directives.
MEASUREMENT CATEGORY III is applicable to test and
measuring circuits connected to the distribution part of the
building’s low-voltage MAINS installation.
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