fluorescent dimmer...... help...

[telectrix]

not come across one of these before. it's dimming 2 x 1200 recessed florries.( 4 tubes each ). the actual dimmer switch has Lin and Lout, but also has 2 terminals + and - wired in telecom cable. ( so elv ). . don't know what's gone as lights don't work. tried a 1K dimmer, but then lights flicker when dimmed so dimmer is incompatible. had to leave it temp. on a standard rocker switch.

anyone any ideas where these dimmers can be obtained, or recommend an alternative? cheers lads.

 

[Zebra Stripe]

Sounds like 1-10v dimmer needed. The +~- connects to the ballast.

 

[gazj82]

The dimamble fluorescent I have encountered have terminals on the electronic ballast that accept a 0-10v input, depending on the voltage given determines the brightness.

I have installed these in quarantine grow rooms, not sure if the system you speak of is the same.

 

[topquark]

Try mr resistor Tel: 1-10V High Frequency Dimmer Module Black - Mr RESISTOR

assuming the ballast is compatible.

 

[GLENNSPARK]

Try mr resistor Tel: 1-10V High Frequency Dimmer Module Black - Mr RESISTOR

assuming the ballast is compatible.

Hows it goin Martin?

Havn`t seen you in here for ages...

 

[topquark]

Hows it goin Martin?

Havn`t seen you in here for ages...

I banned myself :lipsrsealed2:

 

[Buzz-light-bulb]

Look on the back of the dimmer it should give make and model number just order exact same that's what I did

 

[Badged01]

Look on the back of the dimmer it should give make and model number just order exact same that's what I did

Sometimes the best solutions can be glaringly obvious .......

 

[Marvo]

The ballasts might even be addressable Tel, or they could be standard dimmable ballasts, difficult to say without a ballast make and model number. I would remove the 1kw dimmer immediately it could cause more damage.

 

[Flanders]

Is the fault with the dimmer or the ballast ?

 

[Darkwood]

Shame you don't have a selv Ov ground reference you could then bring in an external signal voltage of a 12v battery to proof the ballast through a Pot'.

 

[telectrix]

thanks for all replies. mr. resistor looks good. it says 1-10V on the switch. rest is in german. marvo, i tried the 1KW dimmer to see. when it was apparent that it was no good, i replaced with a bog standard rocker 10A plate switch,

 

[Darkwood]

I can only assume its a PnP set-up hence my comment if you had a 0V terminal on transistor side (selv) you could in thoery strapit to the Negative of a battery and run your positive from the battery through a resistor and mimic the same effect the ballast does with its own control supply.

Are the lamps still ok you may have dimming issues if lamps on way out ...?

 

[Marvo]

Did you get to the bottom of it Tel?

 

[telectrix]

marvo, i think so. topquark's post led me to mr. resistor and a phone call this morning ordered the part. apparently the dimmer acts in 2 ways. a basic on/off and also a variable voltage ( 0 - 10V ) sent to the ballast to dim. also used with LED drivers. thanks a gain to all who posted, (esp. topquark)

 

[telectrix]

quick update. ordered dimmer from mr. resistor, as advised by topquark. came yesterday and went and fitted this morning. result. florries dimming nice and even. part was about £25 with handling and postage.