Fluke 707Ex Manuale utente

707Ex

mA Calibrator

Users Manual

All product names are trademarks of their respective companies.

March 2003 Rev 3 5/03(English)

Table of Contents

Title Page

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

Battery Saver................................................................................................................. 2

Safety Information.......................................................................................................... 2

WWarnings and Cautions ........................................................................................ 2

Safety Advice............................................................................................................ 3

Faults and Damage................................................................................................... 3

Safety Regulations.................................................................................................... 4

Ex-Certification Data................................................................................................. 4

Symbols.........................................................................................................................4

Front Panel Controls...................................................................................................... 5

Using the mA Sourcing (Output) Modes........................................................................ 6

Changing the mA Output Span...................................................................................... 6

Sourcing mA.................................................................................................................. 6

Simulating a Transmitter................................................................................................ 7

Auto Ramping the mA Output........................................................................................ 7

Using the SpanCheck Function ..................................................................................... 8

Measuring dc mA........................................................................................................... 8

Measuring dc mA with Loop Power ............................................................................... 9

707Ex

Users Manual

HART Compatibility........................................................................................................ 10

Measuring dc Volts......................................................................................................... 10

Maintenance................................................................................................................... 11

In Case of Difficulty.................................................................................................... 11

Cleaning.................................................................................................................... 11

Calibration................................................................................................................. 11

Replacing the Battery................................................................................................ 12

Replaceable Parts.......................................................................................................... 13

Fluke Part Numbers................................................................................................... 13

Approved Batteries.................................................................................................... 13

Accuracy Specifications ................................................................................................. 14

General Specifications ................................................................................................... 14

Contacting Fluke ............................................................................................................ 16

17Test certificates............................................................................................................

707Ex

mA Calibrator

Introduction

WWarning

Read Safety Information before you use the

Calibrator.

The Fluke 707Ex mA Calibrator (hereafter, "the Calibrator")

is a compact and easy to operate sourcing and measuring

tool. The Calibrator tests current loops of 0-20 mA or 4-20

mA and measures dc voltage to 28 V. It comes with a set of

alligator-clip test leads, a 9 V alkaline battery installed, and

this Users manual on a CD.

The Calibrator is ideal for use in confined and restricted

spaces within Ex-hazardous areas according to

IEC/CENELEC and Factory Mutual.

Calibrator Capabilities

Function Range Resolution

Measure V dc

28 V 1 mV

Measure mA dc

Source mA dc

Simulate mA dc

0 to 24 mA 1 µA

Source loop power 24 V dc N/A

707Ex

Users Manual

Battery Saver

The Calibrator automatically turns off after 30 minutes of

inactivity. To reduce this time or disable this feature:

1. With the Calibrator OFF, press D.

P.S. xx is displayed, where xx is the turn-off time in

minutes. OFF means the power saver is disabled.

2. Turn kto decrease or lto increase the turn-off time.

To disable, turn kuntil the display shows OFF.

3. The Calibrator resumes normal operation after

2 seconds.

Safety Information

In this manual a Warning identifies conditions and actions

that pose hazards to the user. A Caution identifies

conditions and actions that may damage the Calibrator or

equipment under test. International symbols used in this

manual are identified later in the Symbols section.

Read the entire Users Manual and the 707Ex mA

Calibrator CCD (Concept Control Drawing) before using

the Calibrator.

WWarnings and Cautions

To avoid electric shock, injury, or damage to the

Calibrator:

•Use the Calibrator only as described in this

Users Manual and the Fluke 707Ex mA

Calibrator CCD (Concept Control Drawing) or

the protection provided by the Calibrator may

be impaired.

•Inspect the Calibrator before use. Do not use it

if it appears damaged.

•Check the test leads for continuity, damaged

insulation, or exposed metal. Replace damaged

test leads.

•Never apply more than 28 V between the input

terminals, or between any terminal and earth

ground.

Applying more than 28 volts to the input

terminals invalidates the Calibrator’s Ex

Approval and may result in permanent damage

to the unit so it can no longer be used.

•Use the proper terminals, mode, and range for

your measuring or sourcing application.

•To prevent damage to the unit under test, put

the Calibrator in the correct mode before

connecting the test leads.

•When making connections, connect the COM

test probe before the live test probe. When

disconnecting, disconnect the live probe before

the COM probe.

mA Calibrator

Safety Information

•Never use the Calibrator with the red holster

removed.

•Never use the Calibrator with the case open.

Opening the case violates Ex Approval

•Make sure the battery door is closed before you

use the Calibrator.

•Replace the battery as soon as the M(low

battery) symbol appears to avoid false readings

that can lead to electric shock.

•Remove test leads from the Calibrator before

opening the battery door.

•This equipment is specified for use in

measurement category I (CAT I) pollution

degree 2 environments and should not be used

in CAT II, CAT III, or CAT IV environments.

Voltage transients should not exceed 300 volts

for the CAT I applications where this product is

used. Measurement transients are defined in

IEC1010-1 as 2 µs rise time with a 50 µs

duration at 50 % of the maximum amplitude

height.

•Measurement Category I (CAT I) is defined for

measurements performed on circuits not

directly connected to the mains.

Safety Advice

To ensure safe operation of the Calibrator fully observe all

instructions and warnings contained in this manual. In

case of doubt (due to translation and/or printing errors)

refer to the original English manual.

Faults and Damage

Applying a voltage greater than 28 V to the input of the

Calibrator invalidates its Ex Approval and may impair its

safe operation in an Ex-hazardous area.

If there is any reason to suspect that the safe operation of

the Calibrator has been affected, it must be immediately

withdrawn from use, and precautionary measures must be

taken to prevent any further use of the Calibrator in an Ex-

hazardous area.

The safety features and integrity of the unit may be

compromised by any of the following:

•External damage to the housing

•Internal damage to the Calibrator

•Exposure to excessive loads

•Incorrect storage of the unit

•Damage sustained in transit

•Correct certification is illegible

•Using the product with the red holster removed

•Functioning errors occur

•Permitted limitations are exceeded

•Functioning errors or obvious measurement

inaccuracies occur which prevent further measurement

by the Calibrator

707Ex

Users Manual

Safety Regulations

The use of this 707Ex mA Calibrator meets the

requirements of the regulations providing that the user

observes and applies the requirements as laid down in the

regulations and that improper and incorrect use of the unit

is avoided.

•Use must be restricted to the specified application

parameters.

•Do not open the Calibrator.

•Do not remove or install the battery within the

Ex-hazardous area.

•Do not carry additional batteries within the

Ex-hazardous area.

•Use only type-tested batteries. The use of any other

battery will invalidate the Ex-certification and present a

safety risk.

•Do not use the Calibrator in an Ex-hazardous area

unless it is completely and securely fitted in its

accompanying red holster.

•After using the Calibrator in a non-intrinsically safe

protected circuit, a rest time of 3 minutes minimum

duration must occur before the Calibrator is taken into

and/or used in an Ex-hazardous area.

Ex-Certification Data

•ATEX Certificate of Conformity: ZELM 02 ATEX 0120 X

•Certification: (II 2 G EEx ia IIC T4

•Permitted for zone1, Equipment Group II, gas group C

hazardous gases, vapor or mist, Temperature class T4.

•Factory Mutual, N.I. Class 1 Div. 2 Groups A-D

•Permitted for Division 2 hazardous gases, vapor or mist,

Gas Groups A-D

Symbols

Symbol Meaning

+ON / OFF button.

JEarth ground

WCaution: Important information. Refer to

instruction sheet

(Conforms to ATEX requirements

pConforms to Factory Mutual requirements

TDouble insulated

MBattery

Conforms to relevant Canadian Standards

Association directives. Certification #

LR110460-2.

PConforms to European Union requirements

FDirect current

mA Calibrator

Front Panel Controls

Control Function

DON or OFF button.

A+ D

(Power-on Option)

Press Aand Dsimultaneously to

toggle between the mA output spans.

•4 mA to 20 mA = 0 % - 100 %

(default)

•0 mA to 20 mA = 0 % - 100 %

(optional)

The selection is saved until it is changed.

APress to step through modes:

•Source mA

•Simulate mA

•Measure mA

•Loop Power (24 V)

•Measure V dc

hij

Turn hto increase or decrease current

output.

Current output can be adjusted at a

resolution of 1 µA or 100 µA. (Default is

1 µA.)

•To adjust the current in 1 µA steps,

simply turn the knob.

•To adjust the current in 100 µA steps,

press in and turn the knob.

Control Function

BPress Bto step the current up 25 % of

full scale (20 mA).

At full scale, press Bto step the current

down 25 % of full scale.

B+ CPress B+ Csimultaneously to enter

the Auto Ramp mode and select a ramp

form.

A continuously applied or controlled mA

ramping signal is produced in one of three

ramp forms.

e(slow), g(fast), or f(step)

identifies the selected ramp form.

CPress Cto start the SpanCheckat

0 % of selected current span, i.e., 0 mA for

0-20 mA span or 4 mA for 4-20 mA span.

dis displayed.

Press again for 100 % of selected current

span.

707Ex

Users Manual

Using the mA Sourcing (Output) Modes

The Calibrator outputs current for calibrating and testing

0 to 20 mA and 4 to 20 mA current loops and instruments.

In SOURCE mode, the Calibrator supplies the current.

In SIMULATE mode, the Calibrator simulates a 2-wire

transmitter in an externally powered current loop.

Changing the mA Output Span

The Calibrator has two mA output spans:

•4 mA to 20 mA (0 % to 100 %) [default]

•0 mA to 20 mA (0 % to 100 %) [optional]

To change the output span, turn the Calibrator off. Press

A+ Dsimultaneously. The selected setting is saved

until it is changed again.

Sourcing mA

Use SOURCE mode to supply current to a passive circuit.

A path must exist for current to flow between the +and

the COM terminals. Otherwise, the display flashes when

you set an output value.

AQV04F.EPS

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