Marie bartlett v6-cf Posted March 24, 2018 Report Share Posted March 24, 2018 Hi, I'm a newbie and have a problem with my bartlett v6-cf I use for glas (vary fire). The kiln heat up just fine in the programmed steps but when it reaches max temp it won't hold the temp. The hold time is 20min but already after a few minuts the temp falls. After 20min the temp had dropped 40 C. I'm fairly sure the programming is right. Could it be a problem with the control unit or the kiln itself? Link to comment Share on other sites More sharing options...
Min Posted March 25, 2018 Report Share Posted March 25, 2018 Since the kiln is heating up just fine it sounds like it could be a programming error. What's your firing schedule? (enter review program and write down the whole thing) Welcome to the forum Link to comment Share on other sites More sharing options...
neilestrick Posted March 25, 2018 Report Share Posted March 25, 2018 Yes, post the schedule. Link to comment Share on other sites More sharing options...
Marie bartlett v6-cf Posted March 26, 2018 Author Report Share Posted March 26, 2018 Hi thank you for helping out ☺️ The program is i Celcius and tack fusing Seg:4 ra1 rate/hour: 202 selected temp: 540 hold: 0 ra2 rate/hour: 9999( for some reason is shows as 5555) temp: 800 hold: 0.20(20min) Ra3 rate/hour: 9999 temp: 540 hold: 2.00(2hours) Ra4 rate/hour: 51 temp: 420 hold:0 Link to comment Share on other sites More sharing options...
neilestrick Posted March 27, 2018 Report Share Posted March 27, 2018 Get rid of that 5555 rate and set it at 9999. When you put in a weird number like that it can freak it out. Link to comment Share on other sites More sharing options...
Marie bartlett v6-cf Posted March 29, 2018 Author Report Share Posted March 29, 2018 I actually enter 9999 when I program it, but for some reason it shows as 5555 when I view the program. I have tried to redo the program several times but it always change the 9999 to 5555. I concluded (wrongly?) that it had something to do with units ( F vs C). Link to comment Share on other sites More sharing options...
Dick White Posted March 29, 2018 Report Share Posted March 29, 2018 The 9999 instruction is supposed to cause the controller to go flat out in whatever direction is next. 9999 in a heating ramp is full power on, raise the temperature as fast as the kiln's elements can generate heat. 9999 in a cooling ramp is everything off, crash cool as fast as the kiln can radiate it out. However, I have heard scattered reports that sometimes the controller might react incorrectly to a 9999 instruction. I don't know the explicit conditions or whether it is just some peculiar malfunction of a faulty device. Your report of the 9999->5555 issue suggests a controller fault of some sort, possibly only a minor one. Inasmuch as the 9999 command is "go as fast as you can," you might try a workaround by giving it a more specific ramp rate that in reality exceeds the probable physical capability of the kiln, and let the controller try to keep up. It won't keep up, but it will go as fast as it can. Try setting both of those 9999s at 300 or 400. It would take a very powerful kiln to heat that fast and a thin fiber kiln to cool that fast. I'm guessing that neither of those describe your kiln, so you will get the same effect as if you had programmed the all-purpose general command of go fastest. Another possible solution is try entering your program into a different User number. Maybe there is some corruption of a bit or two where that instruction is supposed to be loaded into memory? Link to comment Share on other sites More sharing options...
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