velleman K8082 Safe Style Code Lock Instruction Manual

: October 30, 2023
: Velleman

Table of Contents

velleman K8082 Safe Style Code Lock
Product Information
Product Usage Instructions
Features & Specifications
Assembly hints
Construction main PCB
- DISPLAY
ASSEMBLY
Connection diagram & example
ENTER YOUR CODE
MENU OPTIONS
Schematic diagram
PCB
More Information
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

velleman K8082 Safe Style Code Lock

Product Information

The K8082 is a novelty code lock with a safe-style code lock. It features a code lock with rotary encoder and 7-segment display, a 4-digit code, several operating modes, adjustable pulse duration, and relay output NO/NC: 3A / 24VDC max. It has several application examples such as opening a door, gate, fence, arm/disarming your alarm system, and prevent unauthorized use (mode 3) of car, entertainment systems, computers, machinery. The product dimensions are front: 85 x 85mm / 3,35 x 3,35 mounting depth: 45mm / 1,77.

Product Usage Instructions

Difficulty Level: Beginner
Total Solder Points: 117
Tools Required: Basic multi-meter

Ensure you have the necessary tools before starting assembly.
Mount the components against the PCB surface and carefully solder the leads.
Ensure the solder joints are cone-shaped and shiny.
Trim excess leads as close as possible to the solder joint.
Pay attention to the position of the decimal point when mounting resistors on the display PCB.

Note: Always look for possible last-minute manual updates, indicated as ‘NOTE’ on a separate leaflet.

Features & Specifications

Features

codelock with rotary encoder and 7-segment display
4-digit code
several operating modes
adjustable pulse duration
application examples: open a door, gate, fence…
arm / disarm your alarm system
prevent unauthorized use (mode 3) of car, entertainment systems, computers, machinery…

Specifications

relay output NO/NC: 3A / 24VDC max.
power supply: 12VDC / 100mA max.
Dimensions:
- front: 85 x 85mm / 3,35 x 3,35″
- mounting depht: 45mm / 1,77″

Assembly hints

Assembly (Skipping this can lead to troubles ! )

Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully.

Make sure you have the right tools

A good quality soldering iron (25-40W) with a small tip.
Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and will protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning.
Thin raisin-core solder. Do not use any flux or grease.
A diagonal cutter to trim excess wires. To avoid injury when cutting excess leads, hold the lead so they cannot fly towards the eyes.
Needle nose pliers, for bending leads, or to hold components in place.
Small blade and Phillips screwdrivers. A basic range is fine.

For some projects, a basic multi-meter is required, or might be handy.

Assembly Hints

Make sure the skill level matches your experience, to avoid disappointments.
Follow the instructions carefully. Read and understand the entire step before you perform each operation.
Perform the assembly in the correct order as stated in this manual
Position all parts on the PCB (Printed Circuit Board) as shown on the drawings.
Values on the circuit diagram are subject to changes.
Values in this assembly guide are correct*
Use the check-boxes to mark your progress.
Please read the included information on safety and customer service

Typographical inaccuracies excluded. Always look for possible last minute manual updates, indicated as ‘NOTE’ on a separate leaflet.

Soldering Hints

Mount the component against the PCB surface and carefully solder the leads
Make sure the solder joints are cone-shaped and shiny
Trim excess leads as close as possible to the solder joint

REMOVE THEM FROM THE TAPE ONE AT A TIME!

AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE!

Construction main PCB

Break the PCB into two pieces.

Main PCB

Mount at first the components on the main PCB

Diodes. Watch the polarity!

D1: 1N4007
D2: 1N4007

Resistors

R1: 10K (1 – 0 – 3 – B)
R2: 10K (1 – 0 – 3 – B)
R3: 1K (1 – 0 – 2 – B)
R4: 10K (1 – 0 – 3 – B)
R5: 4K7 (4 – 7 – 2 – B)

IC socket, Watch the position of the notch

IC1: 14P

Push button

SW1: SET

Capacitors

C1: 100nF (104)
C2: 100nF (104)
C3: 100nF (104)
C4: 100nF (104)
C5: 100nF (104)

Transistor

T1: BC547

Voltage regulator

VR1: UA78L05

Terminal blocks

SK1: 2p
SK2: 3p

Electrolytic Capacitors. Watch the polarity!

C6: 10μF/50V
C7: 470μF/25V

Relay

RY1: VR15M121C

IC, watch the position of the notch

IC1: VK8082
- (programmed PIC16F630-I/P)

DISPLAY

Mount the components on the display PCB

Resistors

R6: 560 (5 – 6 – 1 – B)
R7: 560 (5 – 6 – 1 – B)
R8: 560 (5 – 6 – 1 – B)
R9: 560 (5 – 6 – 1 – B)
R10: 560 (5 – 6 – 1 – B)
R11: 560 (5 – 6 – 1 – B)
R12: 560 (5 – 6 – 1 – B)
R13: 560 (5 – 6 – 1 – B)

Display

Pay attention to the position of the decimal point.
DY1

Digital potentiometer

SW2: Rotary encoder

ASSEMBLY

Mount the jump wires onto the main PCB according to figure 1.0.
Mount 4 print tabs onto the display print (see figure 2.0).
Assemble the unit together (fig. 3.0)
Make sure to connect all jumper wires with the display print and solder them (see figure 4.0).
Mount the red display filter onto the front panel (backside)
Fix the red display filter using a piece of transparent adhesive tape (four sides) (fig. 5.0)
Place the unit onto the front panel (fig. 6.0)
Fasten the potentiometer
Slide the black plastic knob on the axe and fasten the unit (fig 7.0)
Carefully solder the 4 PCB pins to the front panel.

Watch the position of the display

Connection diagram & example

To e.g. alarm system

To e.g. buzzer 24VDC

To e.g. 12VDC door lock

ENTER YOUR CODE

At first turn-on, the unit responds to factory code (1 – 0 – 1 – 0) only.

To compose the code

turn clockwise to 1
turn counter clockwise to 0
turn clockwise to 1
turn counter clockwise to 0
turn clockwise

if you make a mistake, restart from 1

The relay turns on and the ‘lock open’-symbol is displayed.
To turn off the relay, turn knob in any direction

Remark: When the unit remains idle for a while and the relay is off, then the display will show an animation.
The status of the relay is always shown by the decimal point (dp ON = relay ON)

Remark: you can only access the menu when the output relay is off

? Hold the button to enter the setup menu
? The display shows ‘-‘. If button is released at this time, no settings will be altered.
? The decimal dot will flash 3 times, to confirm you left the menu.
If the unit was set to ‘timer mode’, the display will flash the current set time.

Turn knob in any direction to select a menu item, while still holding the button.

‘t’ timer mode: The output relay generates a timed pulse between 0.5 and 9s

To set timer mode:

Release button.
Set required time (0..9s, 0 = 0.5s)
Hold button
Select ‘t’
Release button
Display will flash selected time to confirm selection.

‘c’ continuous mode: The output relay remains activated until the knob is turned.

To set continuous mode:

Release button
Decimal point will flash 3 times to confirm selection

‘s’ Set mode: Allows you to compose a 4-digit code of your choice.

To select ‘set’ mode:

Release the menu button
Compose your custom 4-digit code (change direction after each digit and last digit).
The decimal point will flash 3 times to indicate that your code has been stored.
Remark: If the unit remains idle for a while, the unit will return to normal operation and the code will not be changed

‘d’ default. Return to the factory code (1010)

To set ‘default’ mode:

Release the menu button
Decimal point will flash 3 times to confirm selection

‘I’

Relay turns on at power up
- You have 1 min to enter your code (Display shows an animation)
Compose your code
- If the correct code is not entered within one minute, the relay will turn off and ‘A’ (alarm) will flash.
Release the menu button to select this mode
Decimal point will flash 3 times to confirm selection

‘o’

Relay is off at power up.
- You have 1 min to enter your code. (Display shows an animation)
Compose your code
- If the correct code is not entered within one minute, the relay will turn on and ‘A’ (alarm) will flash.
Release the menu button to select this mode.
Decimal point will flash 3 times to confirm selection

Remark: The modes ‘|’ and ‘o’ can only be changed during the first minute after power up. Otherwise, the unit will go into alarm-mode and access to the menu will be prohibited. In that case, briefly interrupt the power supply to restart the unit.