Download Professional Analogue Multi-meter

Professional Analogue Multi-meter
With Superior Impedance 10MΩ
at All AC/DCV Ranges
TAUT-BAND MOVEMENT BUILT-IN
Auto Power-Off (Sleep Mode)
1,000V Fuses 0.5A & 10A Equipped
True RMS Measurment at ACV/ACA
Operator’s Instruction Manual
READ AND UNDERSTAND THIS
MANUAL BEFORE USING THE
INSTRUMENT
Failure to understand and comply with
the WARING and operating Instructions
can result in serious or fatal injuries and
/or property damage.
Thank you for purchasing this Professional
Analogue Multi-meter !
I. INTRODUCTION
Intended Use
- Measuring and displaying electric quantities in the range of
overvoltage category CAT II up to max. 1,000V, CAT III up to
max. 500V to ground potential, in accordance with EN
- Measuring alternating and direct currents of up to Max. 1,000 V
- Measuring alternating and direct currents of up to 10 A Max.
- Measuring frequencies of up to 25 kHz
- Measuring resistances of up to 2,000 MΩ
- Acoustic continuity checks
- Diode tests
- Transistor tests
The product may only be operated with batteries.
The measuring instrument must not be operated when it is open,
i.e. with an open battery compartment or when the battery
compartment lid is missing. Measuring in damp rooms or under
unfavourable ambient conditions is not admissible.
Adverse ambient conditions include:
-Excessive dampness or humidity
-Dust or combustible gases, vapours or solvents
-Storms or stormy conditions, strong electrostatic fields, etc.
Any use other than that described above will damage the product
and involves other risks, such as short-circuit, fire, or electric
shock. Do not change or modify any part of the product!
The safety instructions must be observed!
Safety instructions:
failure to comply with these operating instructions! We assume no
liability for any consequential damage! We do not assume liability
for personal injury or material damage resulting from improper
use or disregarding the safety instructions! In such cases the
warranty/guarantee is voided.
The user must comply with the safety instructions and warnings
contained in these instructions. The following symbols must be
observed:
An exclamation mark in a triangle indicates important
information in these operating instructions that has to be
observed.
The triangle containing a lightning symbol warns of danger
of an electric shock or of the impairment of the electrical
safety of the device.
※
It indicates special information and advice on operating
This device is CE certified and meets the necessary European
regulations.
Protection class II (double or reinforced insulation)
CAT II Overvoltage category II for measurements on electric and
electronic devices connected to mains power supply. This
category also covers all smaller categories (e.g. CAT I for
mea-suring signal and control voltages).
CAT III Overvoltage category III for measuring building wiring
installation (e.g. outlets or sub-distributions). This
category also covers all smaller categories (e.g. CAT II
for measuring electronic devices).
Earth potential
For safety and licensing reasons (CE), unauthorized conversion
and/or modification of the device is not permitted.
Consult an expert when in doubt as to the operation, the safety or
the connection of the device.
Measuring instruments and accessories are no toys and do not
belong in the hands of children!
The accident prevention regulations of the relevant trade
associations for electrical systems and operating materials are to
be observed in commercial institutions.
In schools, training centers, hobby and self-help workshops, the
operation of measuring instruments must be supervised by trained
personnel.
Before measuring voltages, always make sure that the measuring
instrument is not set to current range.
The voltage between any socket of the measuring instrument and
the ground may not be higher than 1,000V in excess voltage
category II, and than 500 V DC/AC in excess voltage category III.
Take particular care when dealing with voltages exceeding 25 V
AC or 35 V DC! If electrical conductors are touched, even these
voltages involve the risk of a fatal electric shock.
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. When measuring, only touch within the tangible
grip markings on the test prods.
Do not use the multimeter shortly before, during or just after a
thunderstorm (lightning high-energy over voltages!). Ensure that
your hands, shoes, clothing, the floor, the measuring instrument,
the measuring lines, switches and switching parts, etc. are dry.
Do not operate the measuring instrument in surroundings 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.
This might lead to distorted measuring results.
For safety reasons, only use measuring lines or accessories in
correspondence with the specifications of the multimeter. Only
measuring equipment with double or reinforced insulation may be
used (e.g. fully insulated BNC adapters, etc.)
If you have reason to believe that the device can no longer be
operated safely, disconnect it immediately and make sure it is not
unintentionally operated. It can be assumed that safe operation is
no longer possible if:
- the device shows visible damage,
- the device does not function any longer or
- after it has been stored under unfavourable conditions over a
period of time or
- after it has been exposed to heavy stress during transport.
Do not switch on the measuring instrument immediately after it
has been taken from a cold to a warm environment. The
condensation generated could cause serious damage to the device.
Allow the device to reach room temperature before switching it
on.
Do not leave packaging material lying around carelessly. It may
become a dangerous toy for children.
You should also observe the safety instructions in the individual
chapters.
PRODUCT DESCRIPTION
The analogue multimeter (referred to as “multimeter” hereafter) is
equipped with a shock-absorbing pointer instrument. The scale is
equipped with a mirror which allows accurate readings. The meter
movement is supported by taut bands to ensure lossless measuring.
The multimeter can be used in any operating position. The back
support bracket not only causes a
slightly slanted position, but also
hook-up the tester which make it
easier to place the tester read the
display when measuring.
The compact holster alongside
protects the measuring device
from blows.
Hook-up
Slant
The mA current range is protected against overload with a ceramic
quick-break fuse. And though the 10 A range is protected by a
ceramic quick-break fuse too, it still must not be tested for a
period beyond 30 seconds one time; and pauses at least 15 minutes
before starting next measurement at big current load.
The individual measuring functions and ranges are selected via a
rotary switch.
The multimeter can be used for hobby or professional applications.
The following batteries are used as voltage supply:
1 x 9V block + 2 x mignon (type AA)
On delivery, the measuring lines might be covered with protective
sleeves. Prior to use, pull the sleeves off the safety plugs and the
test prods. After use, put them back on for transport protection.
The scale display can be calibrated via the calibration screw.
Perform this prior to each testing operation to prevent faulty test.
Scope of delivery
Multimeter with removable compact rubber holster alongside
Safety measuring test leads, red and black
1x 9V (PP3) battery
2x AA batteries
Operating instructions
Signs and symbol
Overload, measuring range exceeded
Symbol for the acoustic continuity checker
OFF
Switch position OFF
COM/N/
Reference potential, - for DC / N for AC
+/P
Measured potential, + for DC / P (phase) for AC
AC
Alternating quantity for voltage
DC
mV
Constant quantity for voltage and current
Real root mean square of AC measurement
available both for the sine wave and non-sine
distorted waveform
Millivolt (exp.-3)
V
Volt (unit of electric potential)
A
Ampere (unit of electric current)
mA
Milliampere (exp.-3)
µA
Microampere (exp.-6)
TrueRMS
kHz
Kilohertz (unit of electric frequency, exp.3)
Ω
Ohm (unit of electric resistance)
kΩ
Kiloohm (exp.3)
MΩ
Megaohm (exp.6)
LI
Operating current of diodes
LV
Conducting state voltage of diodes
hFE
Amplification factor of transistors
Iceo
IC
IB
Collector emitter leakage current of transistors
Collector current
Base current
SPECIFICATIONS
Guaranteed for one-year warranty.
Over-voltage category: CAT II 1,000V, CAT III 500V to ground potential.
Standard Environment: 23C3C, less than 75% RH.
Temperature Ranges: 0C to 40C, 32 F to 104 F for Operating
condition. -10 C to 50C, 14 F to 122F for Storage condition.
Humidity Scope: Operating condition less than 90% RH.
Storage condition: less than 80% RH.
Operating altitude: Max. 2,000 m
Size: 158(W)x 103(D)x 38(H) MM including Holster
Weight: 490g approx. (including batteries & Holster)
Accessories: One set of 1000V/10A class Test Leads;
Safety ceramic-tube Fuse 0.5A/1000V 1pc on PCBA;
Safety ceramic-tube Fuse 10A/1,000V 1pc on PCBA
RANGE SPECIFICATIONS & TOLERANCE LIST:
Test
Function
s
Range
Accuracy
Remarks
DC V
0-0.05-0.5-2.5-10-50-250V
-1000V
AC V
(True RMS
value)
0-0.05-0.5-2.5-10-50-250V,
-1000V
DC A
0-0.01-0.05-0.25-2.5-25mA
-250mA-10A
AC A
(True RMS
value)
0-0.01-0.05-0.25-2.5-25mA
-250mA -10A
Ω
X 1: 0.2 ~ 2KΩ Midscale
at 20Ω
X 10: 2 ~ 20KΩ Midscale
at 200Ω
X 100: 20 ~ 200KΩ
Midscale at 2000Ω
X1K: 200~ 2MΩ Midscale
at 20KΩ
X10K: 2K ~ 20MΩ
Midscale at 200KΩ
X100K: 20K~200M ohm,
Midscale at 2000K ohm
X1M: 200K~2000M ohm,
Midscale at 20M ohm
0.25-2.5K-25K Hz
 4% FSD. at
0.05V range
 3% FSD. at
other ranges
 4% of FSD.
Band width: 40
~ 400 Hz
NOTE #1
 3% of FSD.
 4% of FSD.
For 10A range
NOTE #2
 4% of FSD.
Band width: 40
~ 1,000 Hz
NOTE #1 & #2
 3% of ARC
(Scale Length)
Input Impendence: 10MΩ
Overload Protection: Max.
1000V AC/DC BUT Range
0.05V/0.5V: Max. 250V
Input Impendence: 10MΩ
Overload Protection: Max.
1000Vrms AC/DC. BUT
Range 0.05V: Max. 250V
Drop Voltage: 50 mV
Overload protected by two
Fuses 0.5A/1000V(for mA
ranges) and 10A/1000V.
Drop Voltage: 50 mV
Overload protected by two
Fuses 0.5A/1000V(for mA
ranges) and 10A/1000V.
Overload protected by the
Oxide Varactor & Fuse.
The Input Voltage limit:
Min.50V, Max. 250Vrms
AC/DC.
 3 % of FSD.
Input Voltage Scope:
2.5V ~ 250V. But Max.
10V at 2.5/25k Hz ranges.
At Ω X 10 Range
Frequency
Transistor
Check
hFE: 0-1000
Not Specified
Diode
Check
IF, IR, LI, LV
Continuity
Check
Beeper sounding
Not Specified
Note#3
< 200 Ohm
At Ω X 10 Range
Overload protected by
Oxide Varactor.
Input Voltage Limit: Min.
50V, Max.250V
AC/DC(5s).
POWER
Supply
Internal Battery:
R6P, AA, 1.5V 2pcs,
6F22, NEDA1604, 9V 1pc
Note#1: RMS Conversion with Signal Crest Factor of 1 to 3 for ACV/ACA
testing in case of non-sine waveform. Additional error 2% shall be counted
when the crest factor 3 to 5 max. The Crest Factor is defined as Vp/Vrms.
Note#2: For 10A range, the big current loaded max. 1min. with 15 min
pause.
Note#3: For Diode test, the Max. current is 0.15 µA in the x1M range; the
Max. current is 1.5 µA in the x100k range; and Max. 15 µA in the x10k
range; and Max. 0.15 mA in the x1k range; and Max. 15 mA in the x10
range; and Max. 150 mA in the x1 range.
II. OPERATIONS
Prior to working with the measuring device, you have to insert the
enclosed batteries. Insert the batteries as described in chapter
“Cleaning and Maintenance”.
Rotary switch
The individual measuring functions can be set via the rotary
switch. If the rotary switch is set to “OFF”, the measuring device
is switched off. Always turn off the device when it is not in use.
Auto power-off function
If the rotary switch is not moved for about 5 minutes, the
multimeter shuts down automatically. This prevents the batteries
from discharging prematurely. During operation the power
indicator is lit. If the power indicator goes out although the rotary
switch is not in the “OFF” position, auto power-off is active. To
restart, switch the measuring selection knob to OFF. Select the
desired measuring range and continue measuring. The power
indicator lights up and the measuring operation is ready.
Measuring
Do not exceed the permitted max. input values. Never touch
circuits or parts of circuits with a possible voltage of more
than 25V/AC rms. or 35 V/DC! Danger to life! Before
measuring, check the connected measuring lines for damage
such as, for example, cuts, cracks or pinches. Replace
defective measuring lines immediately by new ones,
defective measuring lines may not be used any longer!
Danger to life! Before changing the measuring range, the
test prods have to be removed from the test object.
※
Always start measuring with the largest measuring range.
Then gradually switch down to achieve an exact measuring
result. Results are most accurate in medium scale range (scale
range approx. 70 - 110°).
The measuring ranges on the rotary switch correspond to the scale
end value. For reading, always select the corresponding value (e.g.
scale 50 for the measuring ranges 50 and 500).
Make sure that the AC/DC mode switch button is UP at the
“DC” position while testing (except for ACA/ACV) to avoid
faulty measurements.
a) Null balance
Before measuring, always perform null balancing using the
calibration screw (scale value 0V). There must be no measuring
signal on the measuring lines.
b) Measuring AC and DC voltage
Do not exceed the permitted max.
input values; this also applies when
measuring superimposed DC/AC voltages
(e.g. ripple voltages).
- Select the measuring range V using the
rotary switch.
- Make sure to set the AC/DC mode switch button in the
proper position.
- Connect the black measuring line with the COM socket and the
red measuring line with VΩ socket.
- Now perform null balancing.
- For DCV testing, it’s necessary to observe the correct polarity
(red = + / black = -) and connect the two test prods with the test
object (battery, circuit, etc.). If the polarity is not correct, no
value is displayed. The built-in protective diode prevents the
measurement. Stop measuring and measure again observing the
right polarity.
- Read off the measured value on the “V” scale.
- After measuring, put the rotary switch in the “OFF” position to
turn off this device.
※ At the ranges 0.05V/0.5V/2.5V, before measuring the needle
may be off the Zero position and deflected somehow due to its
higher impedance. It’s the normal case and doesn’t affect any
measurement and accuracy while testing
b) Measuring AC and DC current
Do not exceed the permitted max. input values in the
individual measuring ranges. Current measurement is only
admissible in circuits of up 1000V.
Proceed as follows to measure direct currents of up to 10A:
- Select the measuring range 10A using the rotary switch.
- Make sure to set the AC/DC mode switch button in the
proper position.
- Connect the black measuring line with
the COM socket and the red
measuring line with special 10A socket.
- Now perform null balancing.
- For DC testing, it’s necessary to observe
the correct polarity (red = + / black = -)
and connect the two test probes in series
with the test object (battery, circuit, etc.).
If the polarity is not correct, no value is displayed. The built-in
protective diode prevents the measurement. Stop measuring and
measure again observing the right polarity.
- Read off the measured value on the “A” scale.
- After measuring, put the rotary switch in the “OFF” position to
turn off this device.
Proceed as follows to measure direct currents of up to 250mA:
- For measuring in the mA/µA range, select the corresponding
measuring range by using the rotary switch.
- Make sure to set the AC/DC mode switch button in the
proper position.
- Connect the black measuring line with
the COM socket and the red
measuring line with mA socket.
- Now perform null balancing.
- For DC testing, it’s necessary to observe
the correct polarity (red = + / black = -)
and connect the two test probes in series
with the test object (battery, circuit, etc.).
If the polarity is not correct, no value is
displayed. The built-in protective diode
prevents the measurement. Stop
measuring and measure again observing the right polarity.
- Read off the measured value on the “A” scale.
- After measuring, put the rotary switch in the “OFF” position to
turn off this device.
c) Resistance measurement
Make sure that all circuit parts, switches, components and any
other test objects are currentless and discharged.
Proceed as follows to measure the resistance:
- Select the measuring range on the rotary switch Ω.
- Connect the black measuring line with the COM socket and the
red measuring line with the VΩ socket.
- Connect the two test probes with
each other and wait until the pointer
has stabilized. A value of approx.0 Ohm
must be displayed. In case of a deviation,
adjust the pointer to 0Ohm using the
Zero Ohm calibration adjustor.
Always carry out this check when
changing the measuring range.
- Read off the measured value on the “Ω” scale. Multiply the
dis-played value by the measuring range to obtain the measuring
result (e.g. 100Ω (display) x10kΩ (measuring range) = 100 x
10,000 = 1MΩ (measuring result)).
- After measuring, put the rotary switch in the “OFF” position to
turn off the multimeter.
e) Acoustic Continuity Check
Make sure that all circuit parts, switches, components and any
other test objects are currentless and discharged.
The continuity check allows a quick check e.g. of a line. If
forward resistance is <200 Ohm, a beep sounds with the displayed
measuring result.
To measure, proceed as follows:
- Select the measuring
range on the rotary switch.
- Connect the black measuring line with the COM socket (6) and
the red measuring line with the VΩ socket.
- Now perform null balancing.
- Now connect the two test probes to the test object (component,
switch etc.).
- Read off the measured value on the “Ω” scale. A beep sounds
when the resistance value is <200 Ohm.
- After measuring, put the rotary switch in the “OFF” position to
turn off the multimeter.
f) Diode Test
Make sure that all circuit parts, switches, components and any
other test objects are currentless and discharged.
A diode test determines forward voltage and operating current of a
diode (reverse direction IR, forward direction IF).
For this measurement, proceed as follows:
- Use the rotary switch to select the measuring function “Ω” and
the measuring range according to your diode. Start with the
smallest range “x100k/1.5 µA”. Switch to a higher value
accordingly (up to max. x1/150 mA).
- Connect the black measuring line with
the COM socket and the red
measuring line with the V/Ω socket.
- Now perform null balancing.
- Connect the two test prods with each
other and wait until the pointer has
stabilized. A value of approx. 0 Ohm
must be displayed. In case of a deviation,
adjust the pointer to 0 Ohm using the
0 Ohm calibration adjustor.
- Now connect the two test prods with the
test object (diode). Always perform a
measurement with reversed polarity well.
- Read off the measured voltage (UF/UR)
on the “LV” scale, the unit being volt (V).
-The operating current (IF/IR) is displayed on
the “LI” scale. The unit corresponds to the chosen measuring
range (µA/mA).
※ The operating current can be set from 1.5 µA to 150 mA.
Caution! Excess current may damage the component!
- If there is no display, the diode is measured in reverse direction
or the diode is defective (break).
- After measuring, put the rotary switch in the “OFF” position to
turn off the multimeter.
g) Transistor test
The transistor test measures the amplification factor of transistors.
The amplification factor is the collector current (IC)/base current
(IB) ratio. This function requires an auxiliary circuit with a
resistor of 24 kilo-ohm (not included in delivery). Connect this
resistor between the base and the collector connection of the
transistor.
Proceed as follows to measure the amplification factor:
- Use the rotary switch to select the measuring function Ω and the
measuring range “x10 &hFE”.
- Connect the black measuring line with the COM socket (10) and
the red measuring line with the V/Ω socket.
- Now perform null balancing.
- Connect the two test probes with each
other and wait until the pointer has
stabilized. A value of approx. 0 Ohm
must be displayed. In case of a deviation,
adjust the pointer to 0 Ohm using the 0
Ohm calibration adjustor.
- Now connect the two test probes with
the test object (transistor), depending on
the transistor type.
NPN: Black measuring line at collector (C),
red measuring line at emitter (E).
PNP: Red measuring line at collector (C),
black measuring line at emitter (E).
- Read off the measuring value for the
amplification factor on the “hFE” scale.
- If there is no display, the transistor is measured in reverse
direction or the transistor is defective (break).
- After measuring, put the rotary switch in the “OFF” position to
turn off the multimeter.
※ If the base connection of the transistor is open (no resistor
used), the leakage current “Iceo” between collector and
emitter is displayed. The value can be read off on the “Iceo”
scale, the unit being mA.
h) Frequency measurement
Make sure you do not exceed the permitted max. input value
of 10V/AC.
The multimeter can measure frequencies from 0 Hz to 25 kHz in
the voltage from 2.5 to 10 V/AC.
To measure, proceed as follows:
- Select the measuring range “Hz” or “kHz” on the rotary switch.
- Connect the black measuring line with the COM socket (10) and
the red measuring line with the Hz socket.
- Now perform null balancing.
- Connect the two measuring probes to
the test object (generator, switch etc.).
- Read off the measured value on the “kHz”
scale. The unit corresponds to the set
measuring range (Hz or kHz).
- After measuring, put the rotary switch in
the “OFF” position to turn off the multimeter.
III Cleaning and Maintenance
General
To ensure the accuracy of the multimeter over an extended period
of time, it should be calibrated once a year.
See the next chapter for information on battery and fuse
replacement.
Regularly check the technical safety of the instrument
and measuring lines, e.g. for damage to the housing or
squeezed parts etc.
Never operate the measuring device when it is open !
Cleaning
Always observe the following safety instructions before cleaning
the device:
Live components may be exposed if covers are opened or
parts are removed (unless these parts are intended to be
removed without tools).
Before cleaning or repairing the multimeter, any lines
have to be disconnected and the device has to be turned
off.
Do not use agents containing carbon, benzine, alcohol or similar
substances to clean the device. The surface of the multimeter will
be corroded. In addition, the vapours are detrimental to health and
explosive. Sharp-edged tools, screwdrivers or metal brushes
should not be used for cleaning purposes.
To clean the device, the display or the measuring lines, use a clean,
lint-free, antistatic and dry cleaning cloth.
Inserting/replacing the batteries
Operation of the measuring instrument requires batteries, which
are included in delivery.
Insert new batteries:
- Start initial operation,
- When the power indicator does not light up any more; then
the 9V(6F22) battery should be replaced.
- When null balancing in the resistance measuring range can no
longer be performed. Then the AA batteries should be replaced.
- When null balancing in DC1,000V measuring range can no
longer be performed. Then the 9V(6F22) battery should be
replaced.
Proceed as follows to insert or change the batteries:
- Remove all measuring lines and turn off the multimeter.
- Loosen the housing screw on the back and carefully slide upside
off the battery compartment lid.
- Take off the old battery (better to use
a tool like screwdriver for 9V battery),
and insert new batteries as displayed.
Watch out for the polarity in the
battery compartment. 9V (6F22)
battery + AA batteries 2pcs.
- Now, carefully close the housing again.
Never operate the measuring device when it is open.
DANGER TO LIFE!
Do not leave flat batteries in the device. Even batteries
protected against leaking can corrode and thus release
chemicals which may be detrimental to your health or
destroy the device.
Do not leave batteries lying around carelessly. They
could be swallowed by children or pets. If swallowed,
consult a doctor immediately.
If the device is not used over a period of time, remove
the batteries in order to prevent leaking.
Leaked or damaged batteries can burn your skin if
touched. Therefore, use suitable protective gloves.
Make sure that batteries are not short-circuited. Do not
throw batteries into fire.
Batteries must not be recharged. There is danger of
explosion.
※
It’s better to use alkaline batteries. They are powerful and
long-lasting.
Replacing the fuse
Always adhere to the safety instructions when replacing
fuses!
Make sure that only fuses of the type stated and of the
rated current specified are used as a replacement. Using
unsuitable or repaired fuses or bypassing the fuse holder
is inadmissible and can cause fire.
Both the measurement input “V/mA” and the measurement input
“10A” are protected against overcharge. If measurements can no
longer be made via the “V/mA” socket or the input “10A”, the
internal fuses must be replaced.
Proceed as follows to change the fuse:
- Remove all measuring
lines and turn off the
multi-meter.
- Pull off the rubber
holster alongside from
the ABS housing.
- Loosen the housing
screw on the back and
carefully slide off the
battery compartment lid.
- Push the plastic peg between the two battery compartments
forward until the case is unlocked. Carefully remove the case.
- Replace the ceramic microfuse with the new fuses of the
same type: F 0.5A/1000V quick-acting 6.3 x 32 mm; and
F 10A/1000V quick-acting 6.3 x 32 mm.
- Close the device in reverse order and carefully screw the battery
compartment lid back on, and then recover the holster well.
Disposal of used batteries/rechargeable batteries!
The end user is legally obliged (battery regulation) to return all
used batteries and rechargeable batteries. Disposal in the
household waste is prohibited!
Batteries containing toxic substances are marked with the
symbols shown that indicate they must not be disposed of
in household waste. The heavy metals concerned are: Cd =
cadmium, Hg = mercury, Pb = lead. You can return used
batteries/rechargeable batteries free of charge at the official
collection points of your community, in our stores, or
wherever batteries/rechargeable batteries are sold!
You will thus carry out your legal obligations and
contribute to the protection of our environment!
Disposal
Old electronic devices are resources and do not belong in
the household waste. At the end of its service life, dispose
of the product at the collection point of your community
according to the relevant statutory regulations. It is
prohibited to dispose of the device in the household waste.
Troubleshooting
By purchasing the multimeter you have acquired a
state-of-the-art product which operates reliably.
Nevertheless, problems or malfunctions may occur.
For this reason, the following is a description of how you
can eliminate possible mal
functions yourself:
Please observe the safety instructions!
Error
The multimeter does
not work.
No measurements
possible via V/mA
socket.
No measurements
possible via 10A socket
No change in measured
values.
Faulty measuring
results are displayed.
Possible cause
Are the batteries exhausted? Is the
power indicator LED lit? Check the
state of the batteries and the fuse
0.5A, as well as the LED lighting.
Is the fuse defective? Check the
fuse 0.5A (fuse replacement)
Is the fuse defective? Check the
fuse 10A (fuse replacement)
Have you selected the right
measuring sockets? Is the
measuring mode correct (AC/DC)?
Has null balancing of the display or
a 0 Ohm calibration for the
resistance measurement been
carried out? Is the “AC/DC” button
not properly located ?
Any repair work other than that described above must be carried
out by an approved specialist.
If you have questions concerning the use of the measuring device,
our technical support service is available for you by the local
retailer.