VOLTCRAFT AT-200 User manual

Digital Multimeter AT-200

쮕BEDIENUNGSANLEITUNG Seite 4 - 22

Digital Multimeter AT-200

OPERATING INSTRUCTIONS Page 23 - 41

Multimètre numérique

NOTICE D’EMLPOI Page 42 - 60

Best.-Nr. / Item no. /

de commande:

12 15 02

Version 08/12

Introduction

Dear Customer,

In purchasing this Voltcraft®product, you have made a very good decision for

which we should like to thank you.

You have acquired an above-average quality product from a brand family which has

distinguished itself in the field of measuring, charging and network technology by

particular competence and permanent innovation.

With Voltcraft®you will be equal to difficult tasks as an ambitious hobbyist just as

much as a professional user. Voltcraft®offers you reliable technology at an extraor-

dinarily favourable cost-performance ratio.

We are certain: your start with Voltcraft will at the same time be the commencement

of a long and profitable co-operation.

We wish you much enjoyment with your new Voltcraft®product!

Intended Use

Measurement of direct and alternating voltages up to a maximum of 600V DC/AC

rms (effective)

- Measurement of direct and alternating voltages in 3 ranges from 0 to 400µA, 0 to

400mA and 0 to 10A (max. period of 30s with pauses of 15min between the

single measurements)

Measurement of frequencies of up to 10MHz and duty cycle (pulse/pause ratio in %)

- Measurement of resistance values of up to 40MOhm

- Continuity check (< 150 ohms acoustic) and diode test.

- Measurement of capacities of up to 100µF

- Measurement of temperatures from –20°C up to +200 °C (with supplied K-type

thermosensor)

- Revolution counters of 2 - and 4-stroke engines with and without an inductive

ignition using recording tachometer

- Dwell angle measurement for engines provided with 2 to 10 cylinders

The measuring instrument must not be operated when it is open, i.e. with an open

battery compartment or when the battery compartment cover is missing. Any mea-

surement in moist rooms or outdoors or under adverse ambient conditions is not

permitted.

The multimeter may only be used in ranges up to the overvoltage category CATIII to

600V. The voltage difference against earth may be only be 500V AC/DC here

Unfavourable ambient conditions are:

- excessive dampness or humidity

- dust or combustible gases, vapours or solvents

- electrical storms or stormy conditions and strong electrostatic fields, etc.

Use other than that described above will damage the product and may involve other

risks, such as short circuit, fire and electric shock etc. Do not change or modify any

part of the product. The safety instructions should be observed without fail!

Table of Contents

Introduction ..............................................................................................................23

Intended Use ............................................................................................................23

Safety Instructions ....................................................................................................25

Product Description ..................................................................................................27

Scope of Delivery ......................................................................................................28

Display Indications and Symbols..............................................................................28

Carrying out Measurements......................................................................................29

Special Functions......................................................................................................35

Maintenance, Disposal, Battery and Fuse Replacement ..........................................35

Troubleshooting ........................................................................................................38

Technical Data and Measurement Tolerances..........................................................39

Operating Elements (see fold-out page)

3/4-digit liquid crystal display (LCD) with function and measurement unit indication

2 Function button pad with:

Hz/% = Switch-over from the frequency measurement to the indication

of the duty cycle (pulse/pause ratio in %)

Range = manual measurement range setting

REL = reference value measurement

HOLD = "freezing" of the value displayed

3 Key for display illumination

4 Battery compartment at rear

5 Rotary switch for setting the measuring functions, provided with OFF position

6 Test socket for voltage, resistance, frequency, temperature, number of revolutions

µA/mA and capacity (+)

7 COM (ground) socket (-)

8 Measuring socket for current measurement 10A

9 Selection of subfunctions in the relevant rotary switch ranges (e.g. AC/DC switch-

over)

Safety Instructions

Please read the complete instructions carefully before starting

operation. The information contained is important for correct ope-

ration.

The warranty will lapse in case of damage caused by failure to

comply with these operating instructions! We shall not be held lia-

ble for any consequential damage or loss!

We do not accept any liability for personal injury or damage to pro-

perty caused by incorrect handling or non-observance of the safety

instructions! In such cases the guarantee will lapse.

This device left the factory in perfect condition in terms of safety engineering.

To maintain this status and ensure safe operation, the user must comply with the

safety instructions and warnings (“Caution!” and “Note!”) contained in these instruc-

tions for use. The following symbols and notices must be observed:

Note! Read the instructions for use!

This product is CE-tested and meets the necessary directives.

Only for use in dry interior environments

Insulation class 2 (double insulated)

CAT II Overvoltage category II for measurements at electric devices.

CAT III Overvoltage category III for measurements of the building installation.

Earth potential

For safety and licensing reasons (CE), unauthorised conversion and/or modification

of the device is not permitted.

Consult suitably qualified staff, if you have doubts about how the equipment opera-

tes or about how to connect it safely.

Measuring instruments and accessories are not toys and have no place in the hands

of children!

In commercial institutions, the accident prevention regulations of the Employer’s Lia-

bility Insurance Association for Electrical Systems and Operating Materials are to be

observed.

In schools, training centres, computer and self-help workshops, handling of measu-

ring instruments must be supervised by trained personnel in a responsible manner.

Always make sure before measuring voltages that the measuring instrument is not

set to a current measuring range.

The voltage between any socket of the measuring instrument and the ground may

not be higher than 500V DC/AC.

Before changing the measuring range, the test prods have to be removed from the

measured object.

Take particular care when dealing with voltages exceeding 25V AC or 35V DC! Even

with voltages as low as these, it is possible to receive a life-threatening electric

shock if you touch electric conductors.

Prior to each measurement, check your instrument including its measuring lines for

damage. Never carry out measurements when the protective insulation is damaged

(ripped, torn off etc.).

In order to avoid an electric shock, ensure that you do not touch the connections to be

measured, even indirectly, during measurements.

Do not use the clamp-on ammeter just before, during or just after an electrical storm

(electrical shock! / high-energy over-voltages!). Please make certain that your hands,

shoes, clothing, the floor, the measuring instrument or the measurement lines swit-

ches and switching parts are absolutely dry.

Do not operate the measuring instrument in areas or unfavourable conditions where

combustible gases, vapours or dust are or may be present. Avoid operation in the

immediate vicinity of:

- strong magnetic or electromagnetic fields

- transmitting aerials or HF generators.

These could falsify the measured value.

For safety reasons, when measuring only use the supplied measuring cables which

are adjusted to the specifications of the multimeter.

If you have reasons to assume that safe operation is no longer possible, then dis-

connect the appliance immediately and secure it against inadvertent operation.

It must be assumed that the safe operation is no longer possible, if:

- the appliance is visibly damaged

- it does not function any longer and

- the appliance has been stored for long periods of time under unfavourable conditions

- the appliance has been subject to considerable stress in transit.

Do not switch the measuring instrument on immediately after it has been taken from

a cold to a warm environment. The condensation water generated could destroy the

device. Allow the device to reach room temperature before switching it on.

Do not leave the packaging material lying around carelessly. Plastic film and/or bags,

polystyrene parts, etc. can be dangerous in the hands of children.

You should also heed the safety instructions in each chapter of these instructions.

Product Description

The Digital Multimeter (hereinafter referred to as DMM) has a high-contrast, 3 3/4-digit

liquid crystal display (LCD) with function and measurement unit display.

The individual measuring ranges are selected via the rotary switch in which "auto

range", the automatic range selection, is active. The appropriate range of measure-

ment is set for each application individually.

Further additional functions include:

• "HZ/%" - for indicating the pulse/pause ratio of a signal in %,

• "RANGE" - manual measurement range setting,

• "HOLD" for "freezing" a measuring value,

• "REL" to perform a reference measurement,

• An automatic power-off function (auto power off) switches the DMM off, if it has

not been used for approximately 35 minutes. This makes the batteries last longer.

The measuring instrument can be used universally both at the hobby level and at the

installation or school level.

A compound 9V alkaline battery, e.g. a 6LR61 or MN1604 or 6F22 or 006P type, are

required / used for supplying the power.

A fold-out stand is installed on the rear side of the protection rubber frame. You can

use this to move the measuring instrument into a diagonal position, which makes it

easier to read the display.

Scope of Delivery

Multimeter with protection rubber frame

Compound 9V battery

K-type thermosensor (up to max. 200°C)

Multipurpose plug for the K-type thermosensor

Safety measuring wires red and black

Safety alligator clips

Inductive speed meter

Operating Instructions

Display Indications and Symbols

HOLD stands for data hold; the measuring value is kept (e.g. for the

record) until the "HOLD" button is pressed anew or the multi-

meter is switched off.

REL stands for the relative value measurement (=reference measu-

rement)

Auto stands for "automatic measuring range selection"

OL stands for overload = overload, the measuring range has been

exceeded

BAT battery replacement symbol; please replace the batteries

immediately to avoid measuring errors!

symbol for the diode test

symbol for the acoustic continuity tester

AC alternating size for voltage and current

DC direct size for voltage and current

V volt (unit of electric potential)

A ampere (unit of electric current)

Hz hertz (unit of frequency)

Ωohm (unit of electric resistance)

F farad (unit of capacity)

°C grade centigree (unit of temperature)

% indication of the duty cycle of a signal in %

n nano (exp.–9)

µ micro (exp.–6)

m mill (exp.-3)

k kilo (exp.3)

M mega (exp.6)

Carrying out Measurements

In no event exceed the max. permitted input values within the over-

voltage category III. The frequency of the alternating volumes may

not exceed 400Hz! Do not contact circuits or parts of circuits if there

could be higher voltages than 25V ACrms or 35V DC pending within

them ! Danger! Before measuring, check the connected measuring

lines for damage such as, for example, cuts, cracks or squeezing.

Replace defective measuring lines immediately by new ones, defec-

tive measuring lines may not be used any longer! Danger!

a) Voltage measurement

Proceed as follows to measure AC/DC voltages:

- Connect the black measuring line with the COM socket

(7) and the red measuring line with the VΩ-socket (6) till

they are plane at the measuring instrument .

- Set the range selection switch (5) to position "V".

- Press the "MODE" button (9) additionally for measuring

AC voltages.

- Now connect the two measuring prods to the object to

be measured (battery, switching etc.).

- In the display (1), the polarity of the measuring value

concerned will be indicated together with the current

measuring value.

The voltage range "V" shows an input resistance of approx. 10MOhm. As soon as a

minus "-" appears for the direct voltage in front of the measuring value, the measu-

red voltage is negative (or the measuring prods have been mixed up).

Note: Due to the fact that the measuring input is very sensitive, it is possible that any

measuring values ("phantom measuring values") will be indicated if the measuring

wires are free (not connected to an object to be measured). This "phenomenon" is

normal and disappears as soon as you perform your measurement.

b) Resistance measurement, diode test,acoustic continuity

check and capacity measurement

Make sure that all the circuit parts, switches and components and

other objects to be measured are disconnected from the voltage

and currentless at all times.

Proceed as follows for the measurement:

- Connect the black measuring line with the COM socket

(7) and the red measuring line with the VΩ-socket (6) till

they are plane at the measuring instrument.

- Set the range selection switch (5) to position

CAP.

- You are in the resistance measurement range. You can

select the other measuring functions by pressing the

"MODE" button (9).

- Check the measuring lines for continuity by connecting

both measuring prods to one another. After that the

resistance value must be approx. 0 ohm.

- Now connect the measuring prods to the object to be

measured. As long as the object to be measured is not

high-resistive or is interrupted, the measured value will

be displayed on the display (1).

If you carry out a resistance measu-

rement, make sure that the measu-

ring points which you contact with

the measuring prods are free from

dirt, oil, solderable lacquer or simi-

lar. Such circumstances can falsify

the measured result.

Make sure that the polarity of unipolar capacitors (polarised) is cor-

rect ("+" and "-").

The supplied multipurpose plug can be used for an easier handling.

As soon as "OL" (overload) appears on the display, you have excee-

ded the measuring range or the measuring circuit has been broken.

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