Fluke 712B RTD, 714B User Manual

712B/714B

RTD/Thermocouple Calibrator

March 2015

Calibration Manual

LIMITED WARRANTY AND LIMITATION OF LIABILITY

Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is three years and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country.

Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.

To obtain warranty service, 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 difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by use outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point).

THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.

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

Title Page

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

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

Safety Information ................................................................................. 1

Symbols ................................................................................................. 2

712B Specifications ............................................................................... 3

DC mA Measurement ........................................................................ 3

Ohms Measurement .......................................................................... 3

Ohms Source ..................................................................................... 3

RTD Input and Output ....................................................................... 4

General Specifications ....................................................................... 5

714B Specifications ............................................................................... 6

Thermocouple mV Input .................................................................... 6

Thermocouple mV Output ................................................................. 6

Thermocouple mA Input .................................................................... 6

Thermocouple Input and Output ........................................................ 6

General Specifications ....................................................................... 8

Maintenance .......................................................................................... 9

Replace the Batteries ........................................................................ 9

Clean the Product .............................................................................. 9

Required Equipment .............................................................................. 10

712B Performance Verification .............................................................. 11

Verify Ohms Source .......................................................................... 11

Verify 4-Wire Ohms Measure ............................................................ 12

Verify 3-Wire Ohms Measure ........................................................... 13

Verify mA Measure ............................................................................ 14

714B Performance Verification .............................................................. 16

Verify mV Source ............................................................................... 16

Verify mV Measure ............................................................................ 17

Verify TC Measure (Type K) .............................................................. 18

Verify TC K Source ............................................................................ 18

Verify mA Measure ............................................................................ 19

712B Calibration Adjustment ................................................................. 21

Enter Manual Calibration Mode ......................................................... 21

Adjust Ohms Source .......................................................................... 21

Adjust 50 Ω Source ........................................................................ 22

Adjust 350 Ω Source ...................................................................... 22

712B/714B

Calibration Manual

Adjust 500 Ω Source ...................................................................... 23

Adjust 3500 Ω Source .................................................................... 23

Adjust Trigger Current for Ohms Measure ........................................ 24

Adjust 0.1 mA Trigger Current ....................................................... 24

Adjust 0.25 mA Trigger Current ..................................................... 25

Adjust 0.5 mA Trigger Current ....................................................... 25

Adjust 1 mA Trigger Current .......................................................... 26

Adjust Ohms Measure ....................................................................... 26

Adjust 50 Ω Input ........................................................................... 27

Adjust 350 Ω Input ......................................................................... 27

Adjust 500 Ω Input ......................................................................... 28

Adjust 3500 Ω Input ....................................................................... 28

Adjust mA Measure ........................................................................... 29

Adjust 0.1 mA Input ....................................................................... 29

Adjust 24 mA Input ........................................................................ 30

Adjust External Trigger for Ohms Source .......................................... 30

Adjust 0.1 mA External Trigger ...................................................... 31

Adjust 1 mA External Trigger ......................................................... 31

Save Data and Reset the 712B System ............................................ 32

714B Calibration Adjustment ................................................................. 32

Enter Calibration Mode ...................................................................... 32

Use 8508A to Adjust the 5522A Output ............................................. 33

Adjust mV Source .............................................................................. 33

Adjust mV Measure ........................................................................... 34

Adjust Internal Cold Junction Temperature ....................................... 35

Use the Fluke 9101-256 ................................................................ 35

Use a Lag Bath .............................................................................. 37

Adjust mA Measure ........................................................................... 38

Save Data and Reset the 714B System ............................................ 39

User-Replaceable Parts and Accessories ............................................. 40

List of Tables

Table Title Page

1. Symbols ..................................................................................................... 2

2. Required Equipment for 712B Verification and Calibration Adjustment .... 10

3. Required Equipment for 714B Verification and Calibration Adjustment .... 10

4. 712B Ohms Source Limits ......................................................................... 12

5. 712B 4-Wire Ohms Measure Limits .......................................................... 13

6. 712B 3-Wire Ohms Measure Limits .......................................................... 14

7. 712B mA Measure Limits .......................................................................... 15

8. 714B mV Source Limits ............................................................................. 17

9. 714B mV Measure Limits .......................................................................... 17

10. 714B Type K Measure Limits .................................................................... 18

11. 714B TC K Source Limits .......................................................................... 19

12. 714B mA Measure Limits .......................................................................... 20

13. User-Replaceable Parts and Accessories for 712B .................................. 40

14. User-Replaceable Parts and Accessories for 714B .................................. 42

iii

712B/714B

Calibration Manual

List of Figures

Figure Title Page

1. Replace the Batteries ................................................................................

Verify 712B Ohms Source ......................................................................... 11

Verify 712B 4-Wire Ohms Measure ........................................................... 12

Verify 712B 3-Wire Ohms Measure ........................................................... 13

Verify 712B mA Measure .......................................................................... 15

Verify 714B mV Source ............................................................................. 16

Verify 714B mV Measure .......................................................................... 17

Verify Type K Measure .............................................................................. 18

Verify mA Measure .................................................................................... 20

10.

Adjust 712B Ohms Source ........................................................................ 21

11.

Adjust 712B Trigger Current ...................................................................... 24

12.

Adjust for 712B Ohms Measure ................................................................ 26

13.

Adjust 712B mA Measure .......................................................................... 29

Adjust External Trigger for Ohms Source .................................................. 30

14.

Connect the 714B to the 8508A ................................................................ 33

15.

Adjust 714B mV Measure .......................................................................... 34

16.

Connect the 714B to the Fluke 9101-256 .................................................. 36

17.

Use Lag Bath to Adjust Cold Junction Temperature ................................. 37

18.

19.

714B and 5522A mA Channel Connections .............................................. 38

20.

User-Replaceable Parts and Accessories for 712B .................................. 41

21.

User-Replaceable Parts and Accessories for 714B .................................. 43

712B/714B

Calibration Manual

vi 1

Introduction

The Fluke 712B/714B RTD/Thermocouple Calibrator (the Product) is a handheld, battery-operated instrument that measures and sources a variety of RTDs/thermocouples. It also has an isolated channel to measure 4-20 mA.

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.

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.

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 use the Product if it is damaged.

• The battery door must be closed and locked before you

operate the Product.

 Warning

712B/714B

Calibration Manual

Symbols

• 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 batteries leak.

• Remove the batteries if the Product is not used for an

extended period of time, or if stored in temperatures that exceed the specification of the battery manufacturer. If the batteries are not removed, battery leakage can damage the Product.

Symbols used on the Product or in this manual are shown in Table 1.

Table 1. Symbols

Symbol Description

 Earth Ground

 Battery









CAT II

CAT III

CAT IV







Conforms to relevant Australian Standards.

Risk of danger. Important information. See Manual.

Inspected and licensed by TÜV Product Services.

Conforms to European Union directives.

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 III is applicable to test and measuring circuits connected to the distribution part of the building’s 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.

Conforms to relevant North American Safety Standards.

Conforms to relevant South Korean EMC 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.

RTD/Thermocouple Calibrator

712B Specifications

Specifications are based on a one year calibration cycle and apply from +18 °C to +28 °C unless stated otherwise. All specifications assume a 5 minute warmup period.

DC mA Measurement

Range Resolution

0-24 mA 0.001 mA

• Notes:

• Temperature coefficient: ±(0.002 % of reading + 0.002 % of range) /°C ( <18 °C or >28 °C)

Accuracy (% of Reading + Floor)

1 Year 2 Year

0.01 % + 2 μA 0.02 % + 4 μA

Ohms Measurement

Range Resolution

0.00 Ω to 400.00 Ω 0.01 Ω 0.015 % + 0.05 Ω 0.03 %+ 0.08 Ω

400.0 Ω to 4000.0 Ω 0.1 Ω 0.015 % + 0.5 Ω 0.03 %+ 0.8 Ω

• Notes:

• Reading accuracy is based on 4-wire input. For 3-wire ohm measurements, assuming all three leads are matched, add

0.05 Ω (0.00 Ω~400.00 Ω), 0.2 Ω (400.0 Ω~4000.0 Ω) to the specifications.

• Temperature Coefficient: ± (0.002 % of reading + 0.002 % of range) /°C (<18 °C or >28 °C)

Accuracy (% of Reading + Floor)

1 Year 2 Year

Ohms Source

Accuracy

Ohms Range

1.00 Ω to 400.00 Ω

400.0 Ω to 1500.0 Ω

1500.0 Ω to 4000.0 Ω

1.00 Ω to 400.00 Ω 0.01 Ω

400.0 Ω to 4000.0 Ω 0.1 Ω

• Notes:

• Supports pulsed transmitters and PLCs with pulse times as short as 5 ms.

• Temperature coefficient: ± (0.002 % of output + 0.002 % of range) /°C ( <18 °C or >28 °C)

Excitation Current from

Measurement Device

0.1 mA to 0.5 mA

0.5 mA to 3 mA

0.05 mA to 0.8 mA

0.05 mA to 0.4 mA

0.015 % + 0.1 Ω 0.03 % + 0.2 Ω

0.015 % + 0.05 Ω 0.03 % + 0.08 Ω

0.015 % + 0.5 Ω 0.03 % + 0.8 Ω

Resolution

(% of Output + Floor)

1 Year 2 Year

712B/714B

Calibration Manual

RTD Input and Output

RTD Type

(α)

Range (°C)

Measure (°C) Source (°C)

1 Year 2 Year

Source

Current

1 Year 2 Year

10 Ω Pt(385)

50 Ω Pt(385)

100 Ω Pt(385)

200 Ω Pt(385)

500 Ω Pt(385)

1000 Ω Pt(385)

100 Ω Pt(3916)

100 Ω Pt(3926)

10 Ω Cu(427)

120 Ω Ni(672)

50 Ω Cu(427)

100 Ω Cu(427)

-200 to 100 1.5 3 1 mA 1.5 3

100 to 800 1.8 3.6 1 mA 1.8 3.6

-200 to 100 0.4 0.7 1 mA 0.4 0.7

100 to 800 0.5 0.8 1 mA 0.5 0.8

-200 to 100

100 to 800

-200 to 100

100 to 630

-200 to 100

100 to 630

-200 to 100

100 to 630

-200 to 100

100 to 630

-200 to 100

100 to 630

0.2 °C 0.4 °C