Chauvin Arnoux C.A 6501 User manual

C.A 6501



MEGOHMMETRE



MEGOHMMETER



MEGOHMMETER



MEGAOHMMETRI



MEGAOHMETRO

Notice de fonctionnement

User’s manual

Bedienungsanleitung

Manuale d’uso

Manual de instrucciones

FRANÇAIS

E N G L I S H

D E U T C H

ITALIANO

ESPAÑOL

El modelo Chauvin Arnoux

C.A 6501 es el equivalente al

modelo AEMC 6501

English

You have just purchased a CA 6501 megohmmeter; thank you for your

confidence.

For best results from your device:

• read this user manual attentively,

• observe the precautions for its use.

MEANINGS OF THE SYMBOLS USED

AC – Alternating current

Instrument fully protected by double insulation. No

connection to the protective earth is necessary.

Selective sorting of wastes for the recycling of

electrical and electronic equipment within the

European Union.

In conformity with directive WEEE 2002/96/EC: this

equipment must not be treated as household waste.

Danger. See explanations in this manual

Risk of electric shock

Definitions of the measurement categories:

• Measurement category IV corresponds to measurements made at the

source of the low-voltage installation.

• Measurement category III corresponds to measurements made in the

installation of the building.

• Measurement category II corresponds to measurements made on

circuits directly connected to the low-voltage installation.

• Measurement category I corresponds to measurements made on circuits

not directly connected to the network.

Office: Jl. Radin Inten II No. 62 Duren Sawit, Jakarta 13440 - Indonesia

Workshop: Jl. Pahlawan Revolusi No. 22B, Jakarta 13430 - Indonesia

Phone: 021-8690 6777 (Hunting) Fax: 021-8690 6777

Mobile: +62 816 1740 8925

English

16 C.A 6501

CONTENTS

PRESENTATION.............................................................................17

DESCRIPTION OF THE VARIOUS PARTS, CONTROLS, AND FUNCTIONS

USE - CHARACTERISTICS:...........................................................18

3.1

RECOMMENDATIONS.............................................................18

3.2

OPERATION:............................................................................19

3.2.1

MΩmeasurement at 500VDC:..........................................19

3.2.2

kΩmeasurement at 1mADC: ............................................19

3.2.3

Ωmeasurement at 5mADC:..............................................20

3.2.4

AC voltage measurement..................................................20

GENERAL CHARACTERISTICS: ...................................................21

WARRANTY....................................................................................23

MAINTENANCE ..............................................................................23

6.1

REPLACING THE FUSE: .........................................................23

6.2

STORAGE:...............................................................................24

6.3

CLEANING: ..............................................................................24

6.4

METROLOGICAL CHECK........................................................24

6.5

REPAIR: ...................................................................................24

TO ORDER......................................................................................25

English

C.A 6501 17

1 PRESENTATION

The CA 6501 is an electrical measuring instrument intended for the measurement

of low resistance values (0 to 100Ωat 5mA

), of resistances (0 to 500kΩat

1mA

), and for insulation measurements (0.5 to 200MΩat 500V

). The

ohmmeter function is protected against the accidental presence of a voltage by a

high-breaking-capacity fuse. A voltage-present indicator serves to make sure that

there is no AC voltage in the circuit to be tested.

This instrument is ready for use at all times because it requires no operating

maintenance. A magneto generator provides the various measurement and

operating voltages.

2 DESCRIPTION OF THE VARIOUS PARTS,

CONTROLS, AND FUNCTIONS

Physical guard used

to support the left hand

when operating the

crank.

Orange indicator lit: indicates

that magneto speed of rotation

is OK, i.e. that there is a voltage

of up to 500V

(MΩrange) or

a current of 1mA

(kΩrange)

or a current of 5mA

(Ωrange).

Red indicator

lit: multiply the reading

by 10 to obtain the result

(on MΩ, kΩ, Ωscales)

Range switch;

set back to

MΩ/V∼after using

Retractable crank

Screw for adjustment

of the mechanical zero

of the galvanometer

Measurement terminals

Fuse

Black Red

English

18 C.A 6501

A red indicator (Fig. 2) on the left side of

the instrument indicates the automatic

change of range. When it is lit, multiply the

reading by 10 to obtain the result.

Measurement input terminals:

These accept safety plugs 4mm in

diameter.

Other indicators:

An orange indicator (Fig. 1) on the right

side of the instrument indicates that the

speed of the magneto is correct. When it is

lit, the voltage between the termina

ls of the

instrument is 500V, 650V, or 10VDC (no-

load), depending on the setting of the

switch.

3 USE - CHARACTERISTICS:

3.1 RECOMMENDATIONS

The needle must indicate 0 when at rest in the voltmeter setting; if not, adjust

it using the black screw in the centre (see picture above).

Do not connect the instrument to the terminals of a circuit of which the

voltage exceeds 600VAC or DC.

Before any resistance measurement, check that the circuit is not live (switch

set to voltmeter before connection).

After each insulation resistance measurement, let the circuit discharge

(needle on 0V; this takes a few seconds) before disconnecting the

instrument.

English

C.A 6501 19

3.2 OPERATION:

3.2.1 MΩ

ΩΩ

Ωmeasurement at 500VDC:

3.2.2 kΩ

ΩΩ

Ωmeasurement at 1mADC:

The measurement is made

with a current of 1mADC,

from 0 to 500kΩmeasured

(650V

max. no-load).

There is a change of reading

coefficient for rising values:

50kΩ(changes to X10

reading), and a change of

reading coefficient for falling

values: 45kΩ(changes to X1

reading).

The measurement is made at

a voltage of 500V

above

0.5MΩmeasured.

There is a change of reading

coefficient for rising values:

20MΩ(changes to X10

reading), and a change of

reading coefficient for falling

values: 5.5MΩ(changes to

X1 reading).

English

20 C.A 6501

3.2.3 Ω

ΩΩ

Ωmeasurement at 5mADC:

3.2.4 AC voltage measurement

The measurement is made

with a current of 5mA

DC,

from

0 to 100Ωmeasured (10V

max. no-load).

There is a change of reading

coefficient for rising values:

10Ω(changes to X10

reading), and a change of

reading coefficient for falling

values: 9Ω(changes to X1

reading).

The AC voltage measurement

is from 0 to 600V

in a single

range (input impedance:

100kΩ), switch set to V.

English

C.A 6501 21

4 GENERAL CHARACTERISTICS:

Dimensions: 120mm x 120mm, height 130mm.

Mass: 1.06kg.

Degree of protection by housing:

IP54 with cover and IP52 without cover as per IEC

60529 (Ed. 92)

Power supply: This instrument is supplied by a magneto generator that

provides the various measurement and operating

voltages (speed of rotation: approximately 140 rpm).

The voltmeter is supplied by the measurement input and

so there is no need to operate the crank.

Characteristics in the reference domain (23°C ±

±±

±3°C):

Ranges Characteristics in the reference range

MΩ±2.5% of full scale

kΩ±2.5% of full scale

Ω±2.5% of full scale

Volt~ ±3% of full scale from 45 to 450Hz

MΩMeasurement voltage: 500V

MΩShort-circuit current ≤5mA

kΩCurrent regulated to 1mA

ΩCurrent regulated to 5mA

English

22 C.A 6501

Variations in the domain of use: quantities of influence.

Ranges Errors in the range of use (-10 to+45°C) up to 50% RH and to

+35°C up to 75% RH)

MΩ+1.25% / 10°C

kΩ+1.25% / 10°C

Ω+1.25% / 10°C

Volt ~ +1.5% / 10°C, from 45Hz to 450Hz

MΩ±5%

Overloads - protection:

Ω

ΩΩ

Ωrange: 600VAC/DC max.: protection by fast-blow fuse F 0.2A,

600V, HBC (6.3x32mm) from 100V, below 100V overload

limited to 10 seconds.

kΩ

ΩΩ

Ωrange: 600VAC/DC max.

English

C.A 6501 23

Compliance with international standards:

Electrical safety in accordance with IEC 61010-1 (Ed. 2 of 2001).

Electrical safety in accordance with IEC 61010-2-031 (Ed. 2 of 2002).

Measurement in accordance with IEC 61557 (Ed. 2 of 2007), parts 1 and 4

Rated maximum voltage: 600V

Rated characteristics: measurement category III, 300V, or

measurement category II, 600V with respect

to earth,

degree of pollution 2.

Electromagnetic compatibility:

The instrument complies with EMC requirements as per NF EN 61326-1

(Ed. 97) + A1 (Ed. 98) + A2 (Ed. 2001).

5 WARRANTY

Our warranty applies, except as otherwise expressly stipulated, for twelve

months counting from the date of availability of the equipment (extract from

our General Terms of Sale, communicated on request).

6 MAINTENANCE

6.1 REPLACING THE FUSE:

For your safety, snap the crank into the recess provided for this purpose; be

sure to disconnect the leads from any electrical installation and from the

instrument.

Using a flat blade screwdriver, press and turn a quarter turn anti-clockwise to

release the fuse. Replace only with a fuse having identical characteristics.

Fuse: F 0.2A/600V/HBC P/N: P01297095

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