EZ DM-311 Bedienungsanleitung
WARNING
Before using the meter, you must read the following safety information of
Maximum input specification carefully.
V measurements: Below 1000VDC, 750VAC RMS
measurements: Below 200 (Fuse rating 250V)
10A measurements: Below 10A(Fuse rating 250V)
measurements: Below 600VAC/DC(1 minute)
measurements: Below 600VAC/DC(1 minute)
Hz measurements: Below 250VAC/DC
BAT : Don't input the any voltage, current but battery voltage.
If you don't follow the safety information, DMM SET may be damaged.
And, it can cause a roaring noise or a fire.
DECLARATION OF CONFORMITY
according to ISO/IEC Guide 22 and EN 45014
Manufacturer's Name : EZ Digital Co., Ltd.
Manufacturer's Address : #222-28, Nae-dong, Ojeong-gu,
Bucheon-si, Gyeonggi-do,
KOREA, 421-160
Declares that the product :
Product Name : DIGITAL MULTIMETER
Model Numbers : DM-311, DM-312
Date : Sep. 27. 1995.
Conforms to the following product specification :
Certified by TUV Rheinland
Safety : EN61010-1:1993
(IEC 1010-1:1990+A1:1992, modified)
EMC : EN50081-1:1992
EN50082-1:1992
Supplementary Information :
The product herewith complies with the requirements of the Low Voltage
Directive 73/23/EEC and the EMC Directive 89/336/EEC.
Bucheon, Gyeonggi
Location Cheol Young Kim
Quality Assurance Manager
..
WARRANTY
This instruments is warranted against defects in material and
workmanship for a period of one year from the data of sale.
During the warranty period, EZD will repair or replace it which
Prove to be defective. But warranty shall not apply to defects
resulting from improper or inadequate maintenance by buyer,
In this case, the repair will be billed at a nominal cost.
For warranty service or repair, this instrument must be returned
to a service facility designated by EZD.
Buyer shall prepay shipping charges to EZD and EZD shall pay
Shipping charges to return it to buyer.
INTRODUCTION -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
MULTIMETER SAFETY- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
FEATURES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
HOW TO USE THE METER - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
Input Terminals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
Function Selector Rotary Switch- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
Pushbuttons - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
Digital display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
APPLICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -10
Measuring Voltage (AC/DC) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -10
Measuring Current (AC/DC) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -11
(continued on page ii)
CONTENTS
TITLE PAGE
Measuring Resistance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12
Tra ns is to r hF E Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 3
Di od e Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 14
Co nt in ui ty Tes t - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1 5
Battery Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -16
Measuring Frequency - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -17
Me as ur in g Ca pa ci ta nc e- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18
MAINTENANCE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 19
Ba tt er y Re pl ce me nt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20
Fuse Replcement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21
SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22
Specifications (DM-311, 312) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22
Spec if ic at io ns ( DM -3 13 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 25
Spec if ic at io ns ( DM -3 41 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26
CONTENTS, continued
TITLE PAGE
INTRODUCTION
NOTE
All material in this manual applies to the
DM-310SRS AND DM-341 unless otherwise indicated.
This meter has been designed and tested according
to EN 61010-1, Safety Requirements for Electronic
Measuring Apparaturs.
This manual contains information and warnings which
must be followed to ensure safe operation and retain
the meter in safe operation and retain the meter in
safe condition.
HOLSTER (Option)
The meter comes with a snap-on holster that absorbs
shocks and protects the meter from rough handling.
you can also hang the meter on your belt for easy
viewing while probing.
The test leads may be snapped into the holster that
allows you to hold both the meter and probe tip with
one hand.
WARNING
READ"MELTIMETER SAFETY" BEFORE USING THE METER.
Your EZD Digital Multimeter (also referred to as the meter )
is a handheld instrument that is designed for use in the field,
laboratory and at home.
The meter combines the precision of a digital meter with the
speed and versatility of a high resolution.
The meter is powered by a 9V battery and has a rugged
case sealed against dirt, dust and moisture.
A snap-on holster protects the meter from rough handling.
After unpacking the meter, if you notice that the meter is
damaged or something is missing, contact the place of
purchase immediately. Save the shipping container and
packing material in case you have to reship the meter.
The higher input voltage than the maximum one can cause
the roaring noise by the spark gap included for protection.
INTRODUCTION
1
MULTIMETER SAFETY
Before using the meter, read the following safety
information carefully. In the manual the word
"WARNING" is used for conditions and actions that
pose hazards to the user, the word "CAUTION" is
used for conditions and actions that may damage
your meter.
The symbols shown in Figure 1 are used
internationally to denote the electrical functions
and conditions indicated.
Figure 1. international Electrical Symbols
SAFETY DESIGNED
This meter has the feature that warns the dangerous
mismatching between rotary switch's mode selection
position and jack terminal used, Buzzer sound if rotary
switch is not set to Amp mode (10A DC/AC) during
10A terminal which a detector is built in, pluged in by
test lead(only DM-313). To avoid accidentally
applying voltage to 10A terminal, verify that red test
lead is connected to V input terminal before making
voltage measurement. This restriction ensures
protection against burns in the event that voltage is
accidentally applied between 10A and COM terminals.
v/ terminal is colored in red, COM terminal in black
and 10A terminal in Red to be recognized with easy
(refer to Fig.2).
Avoid working alone.
Inspect the test leads for damaged insulation
or exposed.
Select the proper function and range for your
measurement.
MULTIMETER SAFETY
2
1.0001.000 1.0001.000 1.0001.000
Figure 2
* Using Effect (A):No plug in 10A JACK terminal.(Range selector : except 10A position)
(B):Performance good Measurement.
(C): Buzzer sound.
(mismatching) (mismatching)(Good)
MULTIMETER SAFETY
3
Dieses Handbuch passt für folgende Modelle
3
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