Vorel 81783 User manual

OPERATING MANUAL 1
81783
81784
GB
DIGITAL MULTIMETER
81783 81784

OPERATING MANUAL
2
ENVIRONMENTAL PROTECTION
Correct disposal of this product: This marking shown on the product and its literature indicates this kind of product mustn’t be disposed with household wastes
at the end of its working life in order to prevent possible harm to the environment or human health. Therefore the customers is invited to supply to the correct
disposal, differentiating this product from other types of refusals and recycle it in responsible way, in order to re - use this components. The customer therefore
is invited to contact the local supplier office for the relative information to the differentiated collection and the recycling of this type of product.
Direct voltage
Alternative voltage
Direct current
Alternative current
Resistance
Capacitance
GB
TOYA S.A. ul. Sołtysowicka 13-15, 51-168 Wrocław, Polska
Production year:
2012
U
D.C.
0-600V
I
D.C.
0-10A
U
A.C.
0-600V
I
A.C.
0-10A
R
0-200
M Ω
C
0-20μF
Diode test
Frequency
Temperature
Buzzer
Ttansistor test
f
20kHz
max
T
-40
O
÷
+400
O
C
hFE
PNP
NPN

OPERATING MANUAL 3
GB
PROPERTIES OF THE DEVICE
The all-purpose meter is a digital measurement device designed to measure various electrical quantities. The meter
has been designed for amateur, non-professional purposes and must not be used for paid jobs or craft.
Before using the meter, read the whole manual and keep it.
The meter has a plastic housing, a liquid crystal display and a measurement range selector. The housing is equipped
with three measurement sockets and a transistor test socket.
The meter is equipped with measurement cables with plugs.
The meter is sold without a battery.
ATTENTION! The meter is not a measurement device as it is construed within the „Measurement Law”
TECHNICAL PROPERTIES
ATTENTION! It is prohibited to measure electrical quantities exceeding the maximum measurement range of
the meter.
Parameter Direct voltage Alternating voltage Direct current Alternating current Resistance
(RIN = 10MΩ)(U
AB = 0,2V, fIN = 40 ÷ 400Hz)
Catalogue
number Range Precision Range Precision Range Precision Range Precision Range Precision
81783
200 mV
±0,5%
200 mV ±1,2% 20 μA-20 μA-200 Ω
±0,8%
2 V 2000 mV
±0,8%
200 μA 200 μA2kΩ
20 V 20 V 2 mA ±0,8% 2 mA ±1% 20 kΩ
200 V 200 V 20 mA 20 mA 200 kΩ
1000 V ±0,8% 750 V ±1,2%
200 mA ±1,2% 200 mA ±1,8% 2 MΩ
2 A - 2 A - 20 MΩ±1%
20 A ±2% 20 A ±2% 200 MΩ±5%
81784
200 mV
±0,5%
200 mV -20 μA ±2% 200 μA
-
200 Ω
±0,8%
2 V 2000 mV 200 μA-200 μA2kΩ
20 V 20 V ±0,8% 2 mA 2 mA 20 kΩ
200 V 200 V 20 mA ±0,8% 20 mA ±1% 200 kΩ
1000 V ±0,8% 750 V ±1,2%
200 mA ±1,2% 200 mA ±1,8% 2 MΩ
2 A - 2 A - 20 MΩ±1%
20 A ±2% 20 A ±2% 200 MΩ±5%
Parameter Capacitance Frequency Temperature Transistor test Diode test
Catalogue
number Range Precision Range Precision Range Precision IBUCE IFUR
81783
2 nF
20 nF
200 nF
2 μF
20 μF
±2,5% - - - - 10 μA 2,8 V 1 mA 2,8 V
81784
2 nF
20 nF
200 nF
2 μF
20 μF
±2,5%
2 kHz
±1,5%
-40 ÷ 400OC ±0,75%
10 μA 2,8 V 1 mA 2,8 V
20 kHz 400 ÷ 1000OC ±1,5%

OPERATING MANUAL
4
GB
OPERATION OF THE MULTIMETER
ATTENTION! In order to protect from electric shock before the housing of the device is opened, disconnect the meas-
urement cables and turn the meter off.
Replacement of the battery
The multimeter is powered with a 9V 6F22 battery. It is recommended to use alkaline batteries. In order to install a
battery, open the housing of the device removing the two screws at the bottom of the meter. Connect the battery in
accordance with the marking of the terminals, close the housing and replace the screws.
Replacement of the fuse
The device is equipped with a 0,5A/250V quick-break equipment fuse. If the fuse is damaged, it must be replaced with
a new one of the same electrical parameters.
To do so, open the housing of the meter and proceed as in the case of replacement of the battery, observing the safety
principles, to replace the fuse.
MEASUREMENTS
Depending on the actual position of the range switch in the display three significant digits will be displayed as well as
the measurement range below the coma. In case of measurements in the highest voltage ranges a lightning symbol
will be displayed. If it is necessary to replace the battery the multimeter indicates this displaying the battery symbol. If
before the measured value the “-” symbol is displayed then the measured value has an opposite polarization in rela-
tion to the connection of the meter. If only “1” is displayed, then the measurement range is exceeded, and it is neces-
sary to increase the measurement range. In case of measurements of quantities of unknown values, set the highest
measurement range and only after the initial measurement change the measurement range to the adequate one.
ATTENTION! The measurement range of the meter must not be lower than the measured value. It might dam-
age the meter and cause an electric shock.
The correct connection of the leads:
The red lead must be connected to the socket marked as „VΩ”, „mA” or „A”
The black lead must be connected to the socket marked as „COM”
Measurements of voltage
Connect the measurement cables. Switch the range selector to the position of the measurement of the direct voltage
or alternating voltage. Select the maximum measurement range, connect the measurement cables in parallel to the
electric circuit and read the result of the measurements of the voltage. In order to ensure more precise results of the
measurement you may change the measurement range. Do not ever measure a voltage exceeding 1000V, since it
might damage the meter and cause an electric shock.
Measurement of intensity of the current
Depending on the expected value of the measured intensity of the current connect the measurement cables to the
socket marked as „mA” and „COM” or „A” and „COM”. Maximum intensity of the current measured through the „A”
socket may be 20A and it is not protected with any fuse. Maximum intensity of the current measured through the
socket is 10A. The duration of measurement of a current exceeding 10A must not be longer than 15 seconds. The
maximum power-carrying capacity of the „mA” socket is 200mA. The maximum current and voltage values of the
sockets must not be exceeded.
Connect the measurement cables in series to the tested electric circuit, select the range and kind of the current and
read the result of the measurement. The first stage of the measurements is to select the maximum measurement
range. In order to ensure more precise results of the measurement you may change the measurement range.
Measurements of resistance
Connect the measurement cables to the sockets marked as „VΩ” and „COM”; switch the range selector to the position
of the measurement of resistance. Place the measurements leads at the terminals of the measured element and read
the result. In order to ensure more precise results of the measurement the measurement range may be changed if
required. It is strictly prohibited to measure the resistance of live elements. The measurement range 200MΩhas
a constant amounting to 1MΩ, which must be deducted from the result of the measurement. The constant may be

OPERATING MANUAL 5
GB
seen if the measurement leads of the meter are short-circuited.
Measurement of capacitance
Switch the range selector to the position of the measurement of capacitance. Make sure the capacitor was discharged
before the measurement. Do not ever measure the capacitance of a charged capacitor, since it might damage
the meter and cause an electric shock.
Measurements of frequency
Connect the measurement cables to the sockets marked as „VΩ” and „COM”; switch the range selector to the posi-
tion of measurement of frequency. Put the measurements leads to the terminals of the tested element and read the
result of the measurement in the display. Do not ever measure the frequency of a signal whose frequency exceeds
250V RMS (average value). The measured signal should not exceed 100V RMS, since otherwise the result cannot
be read.
Measurement of temperature
Connect the special cable to the TEMP socket and observe the polarization of the terminals. Switch the range selector
to the position of measurements of temperature. Measure the temperature with the other end of the thermoelement.
The meter will indicate the temperature in degrees centigrade. The thermoelement supplied with the device permits to
realise measurements only up to 250OC. Measurements up to 300OC are permitted provided the duration of measure-
ments is short.
Diode and conductivity test
Connect the measurement cables to the sockets marked as „VΩ” and „COM”, and switch the selector to the diode
symbol. Place the measurement leads at the diode terminals in the conduction direction and the reverse direction. If
the diode is functioning correctly, then at the diode connected in the forward direction we will read the voltage drop for
this diode expressed in mV. In case the diode is connected in the reverse direction the display will read „1”. If the diode
terminal is damaged the display will read „0” independently of the direction in which the diode is connected. Correctly
functioning diodes show a low resistance in the forward direction and a high resistance in the reverse direction. It is
strictly prohibited to test live diodes.
In case the meter is used for conduction measurements, the internal buzzer will emit sound each time the measured
resistance drops below 30±10Ω.
Transistor test
Switch the measurement range selector to the position marked with the hFE symbol (measurement of the gain coef-
ficient of the transistor). Depending on the type of transistor it must be connected to the socket of the base marked
as PNP or NPN, making sure the terminals of the transistor are placed in accordance with the letter indications: E
- emitter, B - base, C - collector. If the transistor is functioning properly and the connection is correct, the result of the
measurement of the gain coefficient is read in the display. It is strictly prohibited to test live transistors.

OPERATING MANUAL
6
TOYA S.A.
ul. Sołtysowicka 13 - 15
51 - 168 Wrocław
tel.: [phone]
fax: [phone]
e-mail: [email protected]
ODDZIAŁWARSZAWSKI
Teren ProLogis Park Nadarzyn
al. Kasztanowa 160
05 - 831 Młochów k. Nadarzyna
tel.: [phone]
fax: [phone]
Digital universal multimeter; item no. 81783
Digital universal multimeter; item no. 81784
EN 61010-1:2001
EN 61010-031:2002 + A1:2008
EN 61326-1:2006
EN 61326-2:2006
0112/81783/EC/2012
Wrocław, 2012.01.02
DECLARATION OF CONFORMITY
2006/95/EC Low voltage equipment
2004/108/EC Electromagnetic compatibility (EMC) Directive
We declare and guarantee with full responsibility that the following products:
meet requirements of the following European Standards / Technical Specifications:
and fulfill requirements of the following European Directives:
The last two digits of the year in which the CE marking was affixed: 07
Year of production: 2012
(Name and signature of authorized person)(Place and date of issue)