I don't think it's really 120 degrees in my tank...

[lanman]

What is the life span for temperature sensors??

 

I got mine with my AC-III about 6 months ago or so.

 

Came home this evening to 'lights out' in my 240. Upon investigation, the temperature indicator said it was 120-degrees. Considering my fish are still swimming, and my corals are still alive - I don't think it's really 120 degrees in there. I have the program set to shut off the lights over 83 degrees. I had to disconnect the temperature sensor to get the lights on.

 

Anything to suggest other than get a new sensor??

 

bob

[Hilary]

Same thing happened to me. Neptune said it wasn't at all uncommon.

[dandy7200]

I had one go out in a few months time. I replaced it with a probe expansion and two temp probes

[GaryL]

i got a custom sea life temp controller..... the probe died...and now i found out custom sea life is out of business. so i guess i need to buy another controller. :(

[fishcam]

I had one go out in a few months time. I replaced it with a probe expansion and two temp probes

 

So then do you check that both temps are within a certain range? I'd love to see your program code, if possible.

 

I've been trying to figure out how to say if temp < 80 and time = light time then turn on!

 

Thanks!

[YBeNormal]

I had the same problem with m temp probe a month or so ago.

[dandy7200]

So then do you check that both temps are within a certain range? I'd love to see your program code, if possible.

 

I've been trying to figure out how to say if temp < 80 and time = light time then turn on!

 

Thanks!

 

 

There is no "and" command. You would have to have three lines like:

 

If time > 9:00 then light1 on

If temp > 81 then light 1 off

If temp < 80.9 then light 1 on

 

So the light wouldn't turn on if temp was greater then 80.9 or if it reached that temp at any point in the day the light would turn off. I think that was what you were asking? Personally I just look at both temp readings every few days to make sure they are correct and use email alarms set for extremes (<74 and >84) so I know when there is a malfunction or something drastically wrong with the system.

[YBeNormal]

I had similar commands to turn the lights off if the water temp got too high. It worked great but I noticed the lights would flicker sometimes so I added the Max Change command:

 

If Temp > 83.0 Then LT1 OFF

Max Change 030 M Then LT1 OFF

If Temp > 83.0 Then LT2 OFF

Max Change 030 M Then LT2 OFF

[flowerseller]

I had similar commands to turn the lights off if the water temp got too high. It worked great but I noticed the lights would flicker sometimes so I added the Max Change command:

 

If Temp > 83.0 Then LT1 OFF

Max Change 030 M Then LT1 OFF

If Temp > 83.0 Then LT2 OFF

Max Change 030 M Then LT2 OFF

 

My thoughts as well however a larger spread between the on/off might accomplish the same thing and save a line of code.

I think ACIII's have a maximum 120 lines of code and if you run the full 24 devices and/or double up with socket expansions, that can be reached pretty easily.

[fishcam]

I had similar commands to turn the lights off if the water temp got too high. It worked great but I noticed the lights would flicker sometimes so I added the Max Change command:

 

If Temp > 83.0 Then LT1 OFF

Max Change 030 M Then LT1 OFF

If Temp > 83.0 Then LT2 OFF

Max Change 030 M Then LT2 OFF

 

I was afraid there was no AND operator. a shame! Thanks for the help both of you!