Joy-it COM-VM330 User guide

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

VOLTMETER WITH 3-DIGIT LED DISPLAY

COM-VM330

1. GENERAL INFORMATION

Dear customer,

Thank you for purchasing our product. In the following, we will show you
which things should be noted during the use.

Should you encounter any unexpected problems, do not hesitate to
contact us.

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

2. USAGE

This voltmeter can measure DC voltages from 3 V to 30 V without

requiring an additional power supply for the meter.

To measure a voltage, connect the positive end of the voltage you want
to measure to the positive terminal of the voltmeter (red wire) and the
negative end of the voltage source to the negative terminal of the
voltmeter (black wire).

You can also measure voltages below 3 V with this voltmeter, but for this

you have to supply power to the display regardless of the measuring
voltage. This requires soldering, because you have to remove a solder
bridge on the back of the unit and solder more wires to the board.

Now you have a new pin assignment on the measuring device. Please

note that two ground connections must be connected to the negative

terminal of the measuring device (black cable) (one for the measuring
voltage and one for the supply voltage).

New pin assignment

V + -

Measuring voltage +

(0 - 30 V)

Supply voltage +

(3V)

Measuring voltage -

Supply voltage -

V + -

Not connected

Measuring voltage +

( 3 V - 30 V)

Measuring voltage -

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

PR

3. OTHER INFORMATION

Our Information and Take-back Obligations 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 place. Before you can hand over the old appliance, you
must remove used batteries and replacement batteries which are not
enclosed by the device.

Return Options:

As the end user, you can hand over your old appliance (which has
essentially the same functions as the new one bought with us) free of
charge for disposal with the purchase of a new device.

Small devices, which do not have outer dimensions bigger than 25 cm

can be handed in for disposal independently of the
purchase of a new product in normal household quantities.

1. Possibility of return at our company location during our opening
hours

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

2. Possibility of return nearby

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

Information about Package:

Please package your old appliance safe for transport. Should you not
have suitable packaging material or you do not want to use your own
material, you can contact us and we will send you an appropriate
package.

4. SUPPORT

If any questions remained open or problems may arise aer your
purchase,we are available by e-mail, 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 further information visit our website:

www.joy-it.net

Published: 02.08.2021

www.joy-it.net

SIMAC Electronics GmbH

Pascalstr. 8, 47506 Neukirchen-Vluyn