Joy-it T7 User guide [ml]

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

MULTI-FUNCTIONAL TESTER

Multi-functional measurement device

1. GENERAL INFORMATION

Dear customer,
thank you for choosing our product. In the following, we will show you how

to use this device.

Should you encounter any unexpected problems during use, please do not

hesitate to contact us.

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

2. STRUCTURE

Display

Infrared decoder

Button

Charging status LED microUSB port

Slots for measuring the
breakdown voltage

Slots for
measuring

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

3. INITIAL OPERATION

When you start the measuring device for the first time, you should first

perform a self-test of the device. For this purpose, you must short-circuit

the slots 1, 2 and 3. You do this as follows:

Now press Start to perform the self-test. You will be asked by the device

at approx. 22% to remove the component to close the course so that the

self-test can be completed successfully. Now you can start measuring
your components. You start the measuring process with the Start button.

A 3.7 V battery with 350 mAh is built into the multifunction tester. You can
charge it with microUSB and a 5 V power supply. The LED shows the
status of the battery. That means it shines red when the battery is
charging and green when the battery is fully charged.

The battery of this measuring device is also measured during each
component measurement. Therefore, the residual voltage of the battery
is also displayed during each measurement. This residual voltage is

displayed with Vbat = …V.

The device will also tell you when the battery needs to be charged again.

This device switches o automatically aer 20 seconds of inactivity. You
can also turn it o manually by pressing and holding the Start button.

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

4. MEASURING COMPONENTS

This measuring instrument can detect and measure diodes, Z-diodes,

double diodes, resistors, capacitors, inductors, thyristors, triacs, field

eect transistors, bipolar transistors, and batteries. In the following, you
will find information on how to measure a component and which values
can be measured for the specific components.

To measure a component you can use slots 1-3. Just make sure that you
do not connect two cables to the same channel, i.e. the same digit. So
you have to select any slot at 1, 2, and 3 for three connections.
To measure the breakdown voltage, use channels K and A. Connect the
positive pin to K and the negative pin to A. You will find further informati­on under Z-Diode.
You can always start the measurement with the start button. If nothing, a
defective part, or wrongly connected, this will be indicated on the screen.

Diode

Uf - forward voltage

C - capacity
Ir - leakage current

Z-Diode

Uz - breakdown voltage / Z-voltage
Here the breakdown voltage of a component is measured,
so here the positive line must be connected to K and the negative line to
A. Up to 30 V can be measured in the reverse voltage.

Double diode

Uf - forward voltage

Resistor

Here the resistance in Ω is displayed.

Capacitor

The capacity is displayed here.

Vloss - Loss factor
ESR - equivalent series resistance

Inductor

The inductance is displayed here.
R - resistance

Thyristor

Uf - forward voltage

Triac

Uf - forward voltage

Attention! The capacitors must always be
discharged before you can test them,
otherwise the multifunction tester may be
damaged!

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

Field eect transistor

Vt - breakdown voltage
Cg - gate capacity
Rds - drain source resistance
Uf - forward voltage
@Vg - gate voltage

Here the multifunction tester can distinguish between N-E-MOS, P-E­MOS, N-MOS, P-MOS, N-JFET, P-JFET, N-IGBT and P-IGBT.

Bipolar transistor

hFE - current amplifictaion factor
Ube - base voltage
Ic - collector current
Uf - forward voltage

Here the multifunction tester can distinguish between BJT-NPN, BJT­NPN with diode, BJT-PNP and BJT-PNP with diode.

Batteries

The battery voltage is displayed here.

Attention! The battery must have less than 4.5 V, otherwise the mul­tifunction tester may be damaged!

Infrared-Decoder

The infrared decoder is located next to the start button and does not
need to be activated separately. You can simply e.g. activate your infra­red remote control in front of the device, which decodes it immediately.
You can then see the UserCode and the DataCode on the screen. The
UserCode is the specific code of the remote control you are using and the
DataCode is the code of the button you pressed.

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

PR

5. FURTHER INFORMATION

Our information and redemption obligation according to

the Electrical and Electronic Equipment Act
(ElektroG)

Symbol on electrial and electronic products :

This crossed-out bin means that electrical and electronic products do not
belong into the household waste. You must hand over your old appliance
to a registration oice. Before you can hand over the old appliance, you
must remove used batteries and accumulators which are not enclosed by
the device.

Return options :

As the end user, you can hand over with the purchase of a new device y­our old appliance (which has essentially the same functions as the new

one) free of charge for disposal. Small devices which do not have outer

dimensions greater than 25 cm can be submitted independently of the
purchase of a new product in normal household quantities.

Possibility of restitution at our company location during our opening
hours:

Simac GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn

Possibility of restitution nearby :

We send you a parcel stamp with which you can send us your old appli­ance free of charge. For this possibility, you must contact us via e-mail at
[e-mail] or via telephone.

Information about packaging:

Please package your old appliance safe during transport. Should you not
have a suitable packaging material or you do not want to use your own

material, you can contact us and we will send you an appropriate packa-

ge.

6. SUPPORT

If any questions remain open or problems arise aer your purchase, we
are available by email, telephone and ticket support system to answer
these.

E-Mail: [e-mail]
Ticket-System: http://support.joy-it.net
Telephone: [phone] – 66 (10 - 17 o‘clock)

For more information visit our website:

www.joy-it.net

Published: 11.02.2021

www.joy-it.net

SIMAC Electronics GmbH

Pascalstr. 8, 47506 Neukirchen-Vluyn