Total solder points: 271 |
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Difficulty level: beginner 1 |
2 |
3 |
4 5 advanced |
Advanced UP/DOWN counter
K8035
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ILLUSTRATED ASSEMBLY MANUAL |
H8035IP-1 |
Features & Specifications
Features:
Count up or down.
Count input trough on-board push buttons or by external pulses. Display modes : Normal or time (hh:mm and mm:ss).
An internal oscillator allows time measurement. Programmable pre-set value with equal output. Self diagnostic at power up.
Comes whit easy board to wire connector (20cm wire).
Comes in handy for people counting, part counting, score keeping,
Specifications:
Counter Input |
: |
3...12 VDC (normal dry contact also possible) |
EQUAL Output |
: 5VDC / max 50mA |
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Max. Counting speed |
: |
200 / sec. (2 / sec. with long debounce delay) |
Max. Count |
: |
4 Digits (9999 / 23h59m / 59m59s) |
Power supply |
: 9…12 VDC or transformer 2 x 9 VAC type : 209005 |
|
Power consumption |
: 150mA max. |
|
Dimensions |
: |
125 x 75 x 18mm (4,9”x3”x0,7”) |
2
Assembly hints
1. 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.
1.1 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.
0. 000
For some projects, a basic multi-meter is required, or might be handy
1.2Assembly 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.
3
Assembly hints
1.3 Soldering Hints :
1- Mount the component against the PCB surface and carefully solder the leads
2- Make sure the solder joints are cone-shaped and shiny
3- 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 COR-
RECT MOUNTING SEQUENCE !
4
Construction
1.Jumpers
J : 10x
2.Diodes. Watch the polarity !
D...
CATHODE
3. Zener diode. Watch the polarity !
ZD...
CATHODE
ZD1 : 4V7
ZD2 : 4V7
4. Resistors
R...
D1: 1N4007 |
R9 |
: 10K |
(1-0-3-B) |
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D2: 1N4007 |
R10 |
: 10K |
(1-0-3-B) |
|
R11 |
: 10K |
(1-0-3-B) |
||
D3: 1N4148 |
||||
R12 |
: 10K |
(1-0-3-B) |
||
D4: 1N4148 |
||||
R13 |
: 10K |
(1-0-3-B) |
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D5: 1N4148 |
||||
R14 |
: 2K2 |
(2-2-2-B) |
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D6: 1N4148 |
||||
R15 |
: 2K2 |
(2-2-2-B) |
||
D7: 1N4148 |
||||
R16 |
: 2K2 |
(2-2-2-B) |
R17 : 2K2 (2-2-2-B)
R18 : 4K7 (4-7-2-B)
R19 : 4K7 (4-7-2-B)
R20 : 10K (1-0-3-B)
R21 : 10K (1-0-3-B)
R22 : 10K (1-0-3-B)
R23 : 10K (1-0-3-B)
R24 : 10K (1-0-3-B)
R25 : 10K (1-0-3-B)
R26 : 10K (1-0-3-B)
R27 : 10K (1-0-3-B)
R28 : 390 (3-9-1-B)
5.Pushbuttons.
SW1: KRS1243 SW2: KRS1243 SW3: KRS1243 SW4: KRS1243
5
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