Hi
I build the kit. And it works - but I have 2 problems:
1.) I only get about the half of the power out of it. With a bulb of 100W, not dimmed at all, it burns only with arround 60W.
2.) If I switch off the bulb (in sequence after the K8064 of course) and on again, it does not start to lit again.
Is this per design or is there something wrong?
Regards
Hi,
Have you gone throught the Test and Adjustment procedure in the manual?
Did you mount the correct capacitor in C13?
If you are using 110V value should be 1uf
If you are using 220V value should be 0.47uf
Hi
Yes I did the procedures and the correct capacitator is also mounted…
I messure the power with a regular powermeter before the dimmer-unit. If I connect the bulb directly to the powermeter, I get my 100W and also a clearly visable increase in lightintensity compared to the dimmer-unit on max-power. (direct 96W/ by the dimmer max 56W)
regards
(with the wrong capacitator, the dimmer wouldn’t have survived the test I believe… 
The problem could be the triac, i will send you an email to get your address and send you a new one.
Thanks for the new triac. It solved the problem. All perfect now!
Excellent customercare!
Hi support,
according to this post i had the same problem.
I want to control a water heater with 230V / 750W by a controller. The K8064 is setuped with a DC-Supply 0-10V and works fine with a 300W Bulb. The heater consumed at 10V control voltage only 500W (DMM says 190V). The triac is one with a “ß” in the right lower corner.
After some time the red-led flashes 4-times. But the possible causes in the manual could not match at all, because heater has a resistance about 67 ohm.
Do you have a n advice for me?
Best Regards
Schrotti
I get my 100W and also a clearly visable increase in lightintensity compared to the dimmer-unit on max-power.
I think the load has a strange reaction and/or the phase shift sensing parts detects some phase shift ???
Test again with a load (only lamp’s), because the circuit was not made for heater elements.
Load regulation is normally till 95%, so it’s normal the output voltage doesn’t reach 240V.
Hi Vel456,
with a lamp load (700W) it seems to be functional (660w) . The mains voltage (235V) at the load is 225V.
But with a controlling voltage lower than ~2.5V the light flickers.
Anyway the heater is a resistor with no inductiv load. In the assembley manual is written: “The dimmer can use both resistive loads (e.g. light bulb) and inductive loads (halogen lighting)” and the Load at 235V ist 750W. All conditions are given. So what can we do that the heater reaches 225V an consumption of about 700W.
Best Regards
schrotti
Hi,
As I told you before, the kit was not made for, or tested with a heater. What we can offer is that you send us your kit and we test
if it’s comply to our specs. It’s not possible for us for making custom (tweaking) our firmware and switching off the phase control.
Maybe there is just a simple other problem that we can’t see to mail or via forum communication.
Hi Vel456,
Could you pls. tell me what kind of load the heater is?
I knew only three types resistors, inductivities and capacitives loads. Due the reason i could measure a resistance of about 70 ohm, there is no cap. load. Resistors and ind. loads are given in the tec. specs.
The board works with a bulb, and so i think there should be no wrong soldering part. As a radio and tv-technician and i have had checked the parts five times, i think there is a general fault like the correct manufactorer of the MOS.
So i’m waiting for an answer (may be an other six weeks an thr three deleted post of asking for an answer).
I could not find any advice that this set is not abele to be used with a standard heater…
Schrotti
Please, there is no need for sarcasm.
If you do not get an answer immediately, this means that we do not have an answer at that time.
It looks that this problem is going to be very difficult to solve and we won’t be able to solve it from a distance.
We are willing to examine your circuit AND the load, to see if there is something we can do.
If you return the circuit without the load, then we can only check if it has been assemled properly, which is must likely the case.
Thank you VEL417 for the fast answer.
6 weeks isnt a reliable time for a support answer. But never the less this answer is very fast.
So i could send the board to you, but a hot water heater with 300l of water?
This is the used electrical heater:
2KW at 400V --> ~750W at 230V
It is for me impossible to return both to you. Can you write me yor service address and what are the cost for me?
Greetings
Schrotti
Now we are puzzled.
Why would you like to dim the heater of a water boiler? This is not done, as this is a very slow responding system. To reduce the power of a water heater, you don’t dim to 50%, but you turn it on half of the time.
An on/off controll (pwm or period control) will yield far better results.
Anyway, we can check the correct operation of the dimmer kit, if you return it to:
Velleman Projects Tech. Dept.
Legen Heirweg 33
9890 Gavere
Belgium.
Please include a fault description, as the people that perform repair are not the people that moderate ths forum.
Those heating ‘resistors’ internally mostly consist of a resistance wire wound along a kind of porcelain elements. The winding of that wire causes an inductive component so it is not purely resistive.
Hi at all.
Thank you for the fast answer…
@VEL417:
I have a photovoltaiksystem with the max. power of 5kwp. In germany we have to use our PV-Power by ourself. Its called “Eigenverbrauch” own consumption?. With this system (sorry only in german) http://www.eco-data.de/images/pdf/powerdog%20features%20mit%20eigenverbrauchsanwendungen.pdf we can optimize our selfconsumption of PV-Power. This “Powerdog” used a 0…10V regulation for reducing the power of a heater and so i want to maximize my own consumption.
Anyway… Could you tell me the cost for the check?
By the way: there are no affordable kits on the market to control max. 2kW for this own consumption.
@laserguy:
I know, but in the assembley manual is written: “The dimmer can use both resistive loads (e.g. light bulb) and inductive loads (halogen lighting)”
Greetings
Schrotti
Cost of the check is not an issue, however, shipping is not included. At this time, we do not know what shipping it back to Germany will cost.
Thanks Vel417…