Gossen MetraWatt METRALINE DM 61 User manual

METRALINE DM 61/62
Analog-Digital Multimeter 3-447-013-03
4/1.19
Operating Instructions

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1 Liquid crystal display
2 PMAX / PMIN pushbutton
3 Pushbutton for MIN/MAX functions
4 Pushbutton for manual range selection
5 Multi function pushbutton
6 Function selector switch
7 Terminal sockets with automatic blocking system
8 Pushbutton for HOLD function
9 Pushbutton for backlight function
10 Main display for digits, decimal point and polarity
11 Display for manual range selection, Hold, MIN/MAX, Relative, Peak functions
12 Overrange indication
13 Bar graph for analog indication
14 Sub-display for digits, decimal point and polarity
15 Display for the unit of measured quantity
16 Display for indication of Auto Off Function
17 Display for diode testing
18 Buzzer indication
19 hFE: no function here
20 Low battery indication
21 Display for the selected function i. e. AC or DC
Standard Equipment
1Multimeter
1 Protective rubber cover
1Cableset
2 Batteries, 1.5 V, type AA, installed
1 Operating instructions

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Contents Page
1 Introduction ................................................................................6
2 Safety Features and Safety Precautions ....................................6
3 Switching the Multimeter „ON“ .................................................9
4 Function and Range Selection .................................................10
4.1 Switching the Measuring Ranges .............................................................10
4.2 Auto / Manual Ranging ............................................................................10
5 Liquid Crystal Display (LCD) .....................................................11
5.1 Digital Display .........................................................................................11
5.2 Analog Indication ....................................................................................12
5.3 Backlight ................................................................................................12
6 HOLD and Delay Hold Feature ..................................................13
6.1 HOLD Feature .........................................................................................13
6.2 Delay Hold Feature ..................................................................................13
7 MIN/MAX Feature .....................................................................13
8 Peak Measurement ..................................................................14
9 Voltage Measurement ..............................................................15
10 Current Measurement ..............................................................16
10.1 AC Current Measurement with (Clip-on) Current Transformer ....................17
10.1.1Transformer Output mA/A .......................................................................17
10.1.2Transformer Output V ..............................................................................18
11 Resistance Measurement ........................................................19
12 Continuity Test and Diode Test ................................................20
12.1 Continuity Test ........................................................................................20
12.2 Diode Test ..............................................................................................20
13 Capacitance Measurement (METRALINE DM 62 only) .............23
14
Frequency and Duty Measurement (METRALINE DM 62 only) ............ 24

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14.1 Frequency Measurement .........................................................................24
14.2 Duty Cycle Measurement .........................................................................24
15 Temperature Measurement .....................................................25
16 Technical Characteristics ....................................................26
17 Maintenance ............................................................................32
17.1 Battery ...................................................................................................32
17.2 Fuses .....................................................................................................33
17.3 Case ......................................................................................................34
17.4 Device Return and Environmentally Compatible Disposal ...........................34
18 Product Support .......................................................................35
19 Repair and Replacement Parts Service
Calibration Center and Rental Instrument Service .................. 35
20 Manufacturer‘s Warranty .........................................................36
21 Registration .............................................................................36

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1 Introduction
Thank you very much for selecting our multimeter. These multi-
meters are manufactured as per IS 13875 and DIN 43751.
2 Safety Features and Safety Precautions
You have chosen a multimeter which provides you with a very
high degree of safety. The analog-digital multimeters are man-
ufactured and tested in compliance with the safety standard
IEC 61010-1:2010/ DIN EN 61010-1:2011. In case of incor-
rect use or careless handling, the safety of both user and mul-
timeter is not guaranteed.
For proper use and safe handling, it is absolutely necessary to read
and understand the operating instructions before using the multime-
ter.
For your safety and protection, the multimeters are fitted with
an Automatic terminal Blocking System (ABS). It is coupled
with the function selector switch which blocks the terminal
sockets not necessary for measurement.
Please note the following safety precautions
• The multimeter must be operated only by persons who
understand the danger of shock hazards and are aware of
the necessary safety precautions. Shock hazards exist
wherever voltage of more than 30 V (TRMS) is present.
• Do not work alone in shock hazardous environment while
carrying out measurements.
• The maximum permissible voltage between terminal socket
(7) and ground is 1000 V.
• Take into account that unexpected voltages may occur on
devices under test (e. g. defective instrument). For exam-
ple, capacitors may be charged to a dangerously high volt-
age.
• Verify that the test leads are in good condition e. g. no
cracked insulation, no open circuits in the leads or connec-
tors.

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• This multimeter must not be used for measurements on
circuits with corona discharge (high voltage).
• Be particularly careful when measuring on HF circuits. Dan-
gerous composite voltages may exist there. Measurements
under moist environmental conditions are not permitted.
• Do not overload the measuring ranges beyond their allow-
able capacities. Limit values are given in specifications, see
section 16.
• All current measuring ranges are protected with a fuse. The
maximum permissible voltage of the measuring circuit (nomi-
nal voltage of the fuse) is 1000 V AC/DC in the „mA“ and „A“
ranges.
• Protection provided by the digital multimeter may be
impaired if the multimeter is not used in a manner specified
in this user manual.
Meaning of the symbols on the device
Warning concerning a source of danger
(Attention, refer to the operating instructions)
Earth (ground) terminal.
Double or reinforced insulation
CAT II / III / IV Instrument for overvoltage
category II / III or IV
EU conformity mark
UL UL approval

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Opening of Equipment / Repair
The equipment may be opened only by authorized service per-
sonnel to ensure the safe and correct operation of the equip-
ment and to keep the warranty valid.
Even original spare parts may be installed only by authorized
service personnel.
In case the equipment was opened by unauthorized person-
nel, no warranty regarding personal safety, measurement
accuracy, conformity with applicable safety measures or any
consequential damage is granted by the manufacturer.
Repair and Parts Replacement by Authorized Service Personnel
When the instrument is opened, voltage conducting parts may
be exposed. The instrument must be disconnected from the
measuring circuit before the performance of repairs or the
replacement of parts. If repair of a live open instrument is
required, it may only be carried out by trained personnel who
are familiar with the dangers involved.
Faults and abnormal stress:
If it has been ascertained that safe operation is no longer pos-
sible, take the multimeter out of service and secure it against
accidental use. Safe operation may not be possible
• if the multimeter shows obvious signs of damage,
• if the multimeter no longer functions correctly,
• after prolonged storage under adverse conditions,
• on account of severe stress during transport,
• if the multimeter is not being used in compliance with the
manner described in this manual.

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3 Switching the Multimeter „ON“
Battery
Your multimeter works on 2 x AA size alkaline manganese bat-
teries per IEC LR6. They are provided with the multimeter.
Before you use the multimeter for the first time or after storage,
refer to section 17.1. Set the rotary knob (6) to other than the
„OFF“ position to switch the multimeter ON. Switch „ON“ is
acknowledged by an acoustic signal. All segments of the LCD
will be displayed as shown on page 2.
Note:
Electric discharges and high-frequency influence may cause
incorrect information to be displayed and block the measuring
process. Reset the multimeter by switching it OFF and ON
again. Otherwise, check the battery connections. Disconnect
the multimeter from the measuring circuit before you open it,
and refer to section 17.
Automatic Meter-OFF (MoFF)
The digital multimeter has a default auto meter-off function. If
the multimeter is idle for more than 15 minutes, the multimeter
automatically turns the power off. When MoFF happens, the
state of the multimeter is saved. The „MoFF“ (16) sign on the
LCD panel indicates whether the MoFF is enabled or not. In
some cases, the user might want to disable this feature. Power
ON the multimeter by pressing any of the push functions
except for the HOLD (8) and multifunction (5) pushbuttons.
After auto meter-off, pushing any of the push functions or
changing the rotary switch mode can turn on the multimeter
again. If the multimeter is re-powered by changing the rotary
mode, the saved state is cleared. If the multimeter is re-pow-
ered by push functions, the chip restores the saved state and
enters HOLD mode. The LCD displays the saved value.
Turning the multimeter OFF
To turn OFF the multimeter, set the rotary knob (6) to the „OFF“
position.

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4 Function and Range Selection
The function selector switch (6) is coupled with the Automatic
terminal Blocking System (ABS) which allows access only to
two correct sockets for each function. Prior to switching to the
„mA“ or „A“ functions or from the „mA“ or „A“ functions,
remove the test lead from the corresponding socket. When the
test leads are plugged in, the terminal blocking system pre-
vents accidental switching to non permissible functions.
4.1 Switching the Measuring Ranges
The 660 mVAC and 660 mVDC measuring ranges are not
automatically selected when the multimeter is switched ON.
The above ranges can only be selected manually with the
„AUTO/MAN“ key.
4.2 Auto / Manual Ranging
The multimeter features auto ranging for all measuring ranges
with the exception of the °C, °F, continuity, Diode, %, AAC,
ADC. Autoranging is automatically selected after switching the
multimeter ON. According to the measured quantity applied,
the multimeter automatically selects the measuring range
which gives the best resolution. You can switch OFF auto-
ranging and select the ranges manually according to the table
shown in this section. Manual mode is switched OFF when
pushbutton AUTO/MAN is pressed (4) for approximately 1 s, or
when the function selector switch (6) is operated, or when the
multimeter is turned OFF and ON again.