Fluke 51 Manuale utente

51 & 52 Series II

Thermometer

Users Manual

English

September 1999 Rev.1, 6/01

All product names are trademarks of their respective companies.

Limited Warranty & Limitation of Liability

This Fluke product will be free from defects in material and workmanship for 3 years from the date of purchase. This war-

ranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse or abnormal conditions of opera-

tion 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 tester 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

Fluke Europe B.V.

P.O. Box 1186

5602 B.D. Eindhoven

The Netherlands

To register your product, visit www.fluke-warranty.com

10/96

Table of Contents

Title Page

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

Contacting Fluke....................................................................................................... 1

Getting Started............................................................................................................... 4

Components.............................................................................................................. 5

Display Elements...................................................................................................... 6

Buttons...................................................................................................................... 7

Using the Thermometer................................................................................................. 9

Changing Setup Options................................................................................................ 9

Entering or Exiting Setup.......................................................................................... 9

Setup Options........................................................................................................... 9

Changing a Setup Option.......................................................................................... 10

Measuring Temperatures............................................................................................... 11

Connecting a Thermocouple..................................................................................... 11

Displaying Temperatures.......................................................................................... 11

Holding the Displayed Readings............................................................................... 12

Viewing the MIN, MAX, and AVG Readings.............................................................. 12

Using the Offset to Adjust for Probe Errors.................................................................... 12

51 & 52 Series II

Users Manual

Maintenance................................................................................................................... 13

Replacing the Batteries ............................................................................................. 13

Cleaning the Case and Holster.................................................................................. 13

Calibration ................................................................................................................. 13

Specifications................................................................................................................. 13

Environmental............................................................................................................ 13

General...................................................................................................................... 14

80 PK-1 Thermocouple (supplied with thermometer) ................................................ 14

Electrical.................................................................................................................... 14

Replacement Parts and Accessories.............................................................................. 15

51 & 52 Series II

Introduction

The Fluke Model 51 and Model 52 Thermometers (“the

thermometer”) are microprocessor-based, digital

thermometers designed to use external J-, K-, T-, and E-

type thermocouples (temperature probes) as temperature

sensors.

Use the thermometer only as specified in this manual.

Otherwise, the protection provided by the meter may be

impaired.

Refer to safety information in Table 1 and meter symbols

in Table 2.

Contacting Fluke

To order accessories, receive assistance, or locate the

nearest Fluke distributor or Service Center, call:

1-888-99-FLUKE (1-888-993-5853) in USA

1-800-36-FLUKE (1-800-363-5853) in Canada

+31-402-678-200 in Europe

+81-3-3434-0181 in Japan

+65-738-5655 in Singapore

+1-425-446-5500 from other countries

Address correspondence to:

Fluke Corporation Fluke Europe B.V.

P.O. Box 9090 P.O. Box 1186

Everett, WA 98206-9090 5602 BD Eindhoven

USA The Netherlands

Visit us on the World Wide Web at: www.fluke.com

To register your product, visit www.fluke-warranty.com

51 & 52 Series II

Users Manual

Table 1. Safety Information

WWarning

A Warning identifies conditions and actions that pose hazards to the user. To avoid electrical shock or

personal injury, follow these guidelines:

•Before using the thermometer inspect the case. Do not use the thermometer if it appears damaged. Look

for cracks or missing plastic. Pay particular attention to the insulation around the connectors.

•Disconnect the thermocouple(s) from the thermometer before opening the case.

•Replace the batteries as soon as the battery indicator (B) appears. The possibility of false readings can

lead to personal injury.

•Do not use the thermometer if it operates abnormally. Protection may be impaired. When in doubt, have the

thermometer serviced.

•Do not operate the thermometer around explosive gas, vapor, or dust.

•Do not apply more than the rated voltage, as marked on the thermometer, between the thermocouple(s), or

between any thermocouple and earth ground.

51 & 52 Series II

Introduction

Table 1. Safety Information (cont.)

WWarning (cont.)

•

Model 52:

Measurement errors may occur if voltages on the measurement surfaces result in potentials

greater than 1 V between the two thermocouples. When potential differences are anticipated between the

thermocouples, use electrically insulated thermocouples.

•When servicing the thermometer, use only specified replacement parts.

•Do not use the thermometer with any part of the case or cover removed.

Caution

A Caution identifies conditions and actions that may damage the meter or the equipment under test.

•Use the proper thermocouples, function, and range for your thermometer.

•Do not attempt to recharge the batteries.

•To prevent explosion, do not throw batteries into a fire.

•Follow local laws or regulations when disposing of batteries.

•Match the +and −polarities of the battery with the battery case.

51 & 52 Series II

Users Manual

Table 2. International Symbols

WRefer to the manual for information about this

feature. PComplies with European Union directives.

MBattery. Complies with relevant Canadian Standards

Association directives.

Getting Started

Everything in this

Users Manual

applies both to Models

51 and 52 unless otherwise indicated.

To become familiar with the thermometer, study the

following:

•Figure 1 and Table 3 describe the components.

•Figure 2 and Table 4 describe the display.

•Table 5 describes the functions of the buttons.

Then read the following sections.

51 & 52 Series II

Getting Started

Components

512

aas01f.eps

Figure 1. Components

Table 3. Components

AThermocouple T1 input

Model 52:

Thermocouple T2 input

CHolster

DDisplay

EButtons

FBattery door

GBatteries

51 & 52 Series II

Users Manual

Display Elements

2345

aas02f.eps

Figure 2. Display Elements

Table 4. Display Elements

AThe thermocouple measurement includes an

offset. See "Changing Setup Options."

BThe displayed readings do not change.

CA shift function is in progress.

DSetup is in progress.

ELow battery. Replace the batteries.

FPrimary Display.

Model 51

: T1 reading.

Model 52:

T1, T2, or T1-T2 reading.

GThe temperature unit.

HSecondary Display: MAX, MIN, AVG, or offset.

Model 52:

T1or T2 reading.

IThe thermocouple type.

JTime Display: The elapsed time.

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