Metermann DM73B User Manual [en, de, it]

Operator’s Manual

Model DM73B

Pen Style
Digital Multimeter

•

Bedienungsanleitung

• Manual de Instrucciones

• Manual d’Utilization

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The DM73B Digital Multimeter is warranted against any defects of
material or workmanship within a period of one (1) year following the
date of purchase of the multimeter by the original purchaser or original
user. Any multimeter claimed to be defective during the warranty
period should be returned with proof of purchase to an authorized
Meterman Test Tools Service Center or to the local Meterman Test
Tools dealer or distributor where your multimeter was purchased. See
maintenance section for details. Any implied warranties arising out of
the sale of a Meterman Test Tools multimeter, including but not lim­ited to implied warranties of merchantability and fitness for a particular
purpose, are limited in duration to the above stated one (1) year pe­riod. Meterman Test Tools shall not be liable for loss of use of the
multimeter or other incidental or consequential damages, expenses, or
economical loss or for any claim or claims for such damage, expenses
or economical loss. Some states do not allow limitations on how long
implied warranties last or the exclusion or limitation of incidental or
consequential damages, so the above limitations or exclusions may
not apply to you. This warranty gives you specific legal rights, and you
may also have other rights which vary from state to state.

CONTENTS

Warranty 1
Certifications and Precautions 1
Introduction 2
Measuring Procedures 2
Maintenance and Repair 4
Specifications 5

CERTIFICATIONS AND PRECAUTIONS

■ The DM73B instrument is UL, cUL, and EN61010-1 certified for
Installation Category II – 600V. It is recommended for use with local
level power distribution, appliances, portable equipment, etc, where
only smaller transient overvoltages may occur, and not for primary
supply lines, overhead lines and cable systems. ■ Do not exceed the

WARRANTY

1

maximum overload limits per function (see specifications) nor the
limits marked on the instrument itself. Never apply more than 600VDC
between the test lead and earth ground.■ Exercise extreme caution
when: measuring voltage >20V // servicing CRT equipment. ■ Inspect
DMM, test leads and accessories before every use. Do not use any
damaged part. ■ Never ground yourself when taking measurements.
Do not touch exposed circuit elements or probe tips. ■ Do not operate
instrument in an explosive atmosphere.

EXPLANATION OF SYMBOLS

DANGER High
Voltage

ATTE NTION
Refer to Manual

This Instrument has
double insulation

Direct Current

Alternating Current

Protective Conductor
Terminal

The DM73B is a probe-type digital multimeter capable of measuring
DC and AC voltage, resistance, diode and continuity. Its controls are:
Volts (V), Ohms ( Ω ), Diode Test and Continuity Beeper (

), On- Off,

AC/ DC and Hold. (See page 3) 1. V - Ω input. 2. Function selector.

3. HOLD button. 4. SHIFT button for AC / DC or Diode /Continuity. 5.
LCD Display. 6. COM input.

MEASURING PROCEDURES

When connecting or disconnecting test leads to or from a circuit,

Note:

always first turn off power to the circuit under test and discharge all
capacitors.

DC / AC Voltage Measurement

Set the Function switch to “V”. Select AC or DC by pressing the mode
selector button (AC or DC is displayed). Connect the instrument to the
circuit and read the measured voltage in the display.

INTRODUCTION

2

1

V

Ω

OFF V

CAT II

Ω

MAX600V

SHIFT

2

DC

AC

0

4

10 3020

Mk

mV

H S

Ω

5

+

DM73B

DIGITAL

MULTIMETER

COM

mode selector button twice, so that appears (
the instrument across the device to be tested. The forward voltage
drop of a good diode is about 0.6V. An open or reverse biased diode
will read “OL”.

Data Hold

Push the HOLD button to “freeze” the measurement reading and then
remove the test leads while the reading remains displayed. HOLD is
useful when it is necessary to pay very close attention to your work.
Pushing the HOLD button again releases the display.

Automatic Shutdown

This function causes the meter to enter power saving mode after
approximately 10 minutes. Disable automatic shutdown by holding
the shift button down while turning the meter on.

Resistance Measurement

Set the Function switch to “ Ω ”. Connect the
instrument across the resistance and read
the value in the display. When measuring
high resistance values, take care not to touch
the test leads.

Continuity Measurement

H

Set the Function switch to Ω . Press the
mode selector button once, so that appears

) in the LCD. Connect the instrument

(

3

across the device or wire to be tested.
Beeper will sound when continuity is estab­lished. The beeper also sounds when chang­ing functions, modes, or for Probe Hold.

Diode Measurement

6

Set the Function switch to Ω . Press the

) in the LCD. Connect

3

MAINTENANCE

In Case of Difficulties

first review the operating instructions for possible errors in operation.
Inspect and check test leads for continuity. Check the condition of the
batteries. The battery “
below the level where accuracy is guaranteed. Replace batteries
immediately.

Battery Replacement

Cleaning Procedure

Gently wipe dirt from the surface of the unit with a soft cloth moistened
with a small amount of water or neutral cleanser. Do not use benzene,
alcohol, acetone, ether, paint thinner, lacquer or ketone solvents on
the units, under any circumstances as these may cause deformation
or discoloration.

In the case of improper operation of the meter,

” symbol appears when the voltage falls

Warning:

In order to avoid electrical shock,
remove the test lead before opening the case.
To replace the batteries ( 2 – LR44) unscrew the
battery hatch screw and remove the old batteries.
Install the new batteries observing the diagram in
the battery area.

REPAIR

Read the warranty located at the front of this manual before request­ing warranty or non-warranty repairs. For warranty repairs, any mul­timeter claimed to be defective can be returned to any Meterman Test
Tools authorized distributor or to a Meterman Test Tools Service
Center for an over-the-counter exchange for the same or like product.
Non-warranty repairs should be sent to a Meterman Test Tools Serv­ice Center. Please call Meterman Test Tools or enquire at your point
of purchase for the nearest location and current repair rates. All mul­timeters returned for warranty or non-warranty repair or for calibration
should be accompanied by the following information or items: com­pany name, customer’s name, address, telephone number, proof of

4

purchase (warranty repairs), a brief description of the problem or the
service requested, and the appropriate service charge (for non­warranty repairs). Please include the test leads with the meter. Service
charges should be remitted in the form of a check, a money order,
credit card with expiration date, or a purchase order made payable to
Meterman Test Tools or to the specific service center. For minimum
turn-around time on out-of-warranty repairs please phone in advance
for service charge rates. The multimeter should be shipped with trans­portation charges prepaid to one of the following addresses or to a
service center:

in U.S.A. in Canada in Europe
Meterman Test Tools Meterman Test Tools Meterman Test Tools
1420 75th Street SW 400 Britannia Rd. E.Unit #1 52 Hurricane Way
Everett, WA 98203 Mississauga, ON L4Z 1X9 Norwich, NR6 6JB, U.K.
Tel: [phone] Tel: [phone] Tel: int + 44-1603-404824
Fax: [phone] Fax: [phone] Fax: int + 44-1603-482409

The instrument will be returned with the transportation charges paid by
Meterman Test Tools.

SPECIFICATIONS

General Specifications

Display: 3- 3/ 4 digit LCD, 3400 count
Measuring rate: 2.5/ second nominal
Bargraph: 34 segments – updated 20 readings per second
Operating Temp. range: 0 to 40° C, 80% RH
Storage Temp. range: -20 to 60° C, 70% RH
Environmental: Intended for Indoor use, Altitude up to 2000 m.
Measurement Accuracy: x0.1/ C°
Batteries: 2x LR44, SR44 or S76
Life: 100 hours nominal
Auto Power Off: after 10 minutes
Dimension: 7.8” x 1.1” x 1.4”
Weight: .21 lb.
Accessories: Operating manual, test lead with alligator clip, 2 batter­ies (installed), spare tip.
Approvals: Safety consideration for UK: do not to measure electrical

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mains supply.
Safety: Conforms to EN61010- 1: Cat II - 600V; CAT III - 300V , Class
2, Pollution degree II; UL3111-1. EMC: Conforms to EN61326

This product complies with requirements of the follow­ing European Community Directives: 89/ 336/ EEC

(Electromagnetic Compatibility) and 73/ 23/ EEC (Low
Voltage) as amended by 93/ 68/ EEC (CE Marking). However, electri­cal noise or intense electromagnetic fields in the vicinity of the equip­ment may disturb the measurement circuit. Measuring instruments will
also respond to unwanted signals that may be present within the
measurement circuit. Users should exercise care and take appropriate
precautions to avoid misleading results when making measurements
in the presence of electronic interference.

Electrical Specifications

Accuracy at 23°C ± 5°C, < 75 % RH, guaranteed for one year.

DC Volts

Ranges: 340mV, 3.4, 34, 340V, 600V
Accuracy: ± (0.5% rdg + 2 dgt)
Input Impedance: 340 mV range: >100MΩ , other ranges: 10MΩ
Protection: 600VDC or AC rms

AC Volts

Ranges: 3.4V, 34, 340, 600V
Accuracy: ± (1.5 % rdg + 8 dgt) (50 - 500Hz)
Input Impedance: 10MΩ
Protection: 600VDC or AC rms.

Resistance

Ranges: 340 Ω , 3.4, 34, 340 kΩ , 3.4, 34 MΩ
Accuracy:
340Ω - 340kΩ: ± (1.0 % rdg + 4 dgt)

3.4MΩ: ± (1.5 % rdg + 4 dgt)
34 MΩ: ± (3.0 % rdg + 5 dgt)
Max. open circuit voltage: 340Ω range - 1.2V; all others: - 0.45V
Protection: 500VAC or DC.

6

Diode Test

Range: 3.4V
Accuracy: ± (2.0%rdg + 3 dgt)
Resolution: 0.1mV in 3.4V range
Short circuit current: 1.0mA
Max open circuit voltage: 3.0VDC
Audible indication: < 0.2V
Overload prot.: 500VDC or AC rms

Continuity

Display response: <0.5s
Continuity threshold: ≤ 3
Overload prot.: 500VDC or AC rms

Accessories / User Replaceable Parts

TL73B Test lead with alligator clip
VC11 Vinyl Case
TP73B Replaceable Probe tip
Battery Type SR44, LR44, or S76

0 Ω

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Bedienungsanleitung

Model DM73B

Digitales Stift-Multimeter

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GEWÄHRLEISTUNG

Das digitale Stift- Multimeter DM73B ist ab Kaufdatum für ein (1) Jahr
gegen Material- und Herstellungsfehler gewährleistet. Siehe “Repara­tur” für Einzelheiten. Für weiterführende Ansprüche aus Garantiefäl­len, wie Folgeschäden, Gewinnausfälle usw. kommt nicht auf.

INHALT

Gewährleistung 9
Warnungen und Sicherheitshinweise 9
Beschreibung 10
Bedienungsanleitung 10
Wartung und Reparatur 11
Spezifikationen 13

ERKLÄRUNG DER SYMBOLE

Achtung! Bitte
Anleitung lesen

Eine gefährliche
Spannung kann den
Eingängen anliegen.

Dieses Gerät ist
doppelt isoliert.

Gleichstrom

Wechselstrom

Erdanschluß

Warnungen und Sicherheitshinweise

Anmerkung: Das Symbol auf der Frontplatte des Gerätes bedeutet:
“Bitte die Bedienungsanleitung folgen.” ■ Dieses Gerät ist UL, cUL,
und EN61010- 1 zertifiziert für Installationsklasse II. Anwendung ist
empfohlen für lokale Stromverteilung, Haushaltgeräte, tragbare
Geräte, usw, wo nur kleinere Spannungsspitzen auftre-ten können,
und nicht für primäre Stromverteilung und Hochspannungsleitungen.

■ Überschreiten Sie nie die kontinuierlichen Überlastgrenzen per
Funktion (siehe Spezifikationen) oder andere Grenzen welche auf
dem Gerät markiert sind. Legen Sie nie mehr als 600V Gleichspan­nung zwischen Meßkabel und Erde an. ■ Äußerste Vorsicht beim
Messen von: Spannung >20V // beim Messen an Bildröhrgeräten

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