Problem with multicontroller in night mode

[Herzberg]

Hi there,

I just bought a used multicontroller 7095 and there seems to be something wrong with the night mode. It does recognize the lights going out, but channel one is ramped up to a constant 100% were as channel 2 cuts back to the correct 30%. I can manually turn it down to 30% but that's no good for obvious reasons.

Has anyone seen this happen before?

 

[rvitko]

What you describe may be normal, night mode switches the pumps to whatever the lower speed knobs are set to, so if you have the bottom speed knob at 100% on a channel, that will be night mode.

 

[Herzberg]

Hmmm I seems that I might have had the min. set to max and vice versa. So that is good.

Also, using the night mode, the full flow will only be on during the 8 hours of lighting I have (HQI only, no supp.) - ambient room lighting isn't enough to tricker the day mode in my case. Does this sound right to you? Wouldn't it be more benificial to have maximum flow for a longer period than 1/3 of the day when the light is on?

 

[rvitko]

You may want to leave night mode at 100%, the pulsing has stopped so the "sea" is still calmer than day, but this way the flow is high enough to avoid the pH drop.

 

[Herzberg]

Okay I might consider doing that. But is that something that people do?

 

[rvitko]

That is how I do it as at night the pH tends to fall and if you raise the flow a bit you can reduce the pH fall.