# zercros 1812

#### daav

##### Member
We have a Zercros 1812 lighting desk and we would like to access a manual for it, or have some one explain the 'fader' and 'chase' functions. I'm not really a techie but i do know how to read a manual and follow logically.

#### bdesmond

##### Active Member
Well, www.zercros.com, which is what google returns doesn't come up.

I can explain to you a chase and a fade though.

Fade-

Let's say you have a fixture whose intensity is at 75%. You need it to come down to 25%. You have a couple options - with no fade, just drop it straight there - very abrupt.

When something is faded, that change from 75% to 25% will happen gradually over a period of time you specify. If you say 5 seconds, 10% light output drop per second in this scenario.

Chase-

You ahve a pipe below with 5 fixtures on it:

===A===B===C===D===E===

In a simple chase, this would be hte sequence of events:

Light A on
Light A off
Light B on
Light B off
Light C on
Light C off
Light D on
Light D off
Light E on
Light E off
Light A on
Light A off
Light B on
Light B off
Light C on
Light C off
Light D on
Light D off
Light E on
Light E off
etc

Visually, the light chases from left to right.