The "Official DNA 40" thread has died a slow agonizing death largely centered around debate on the quality of one vendor's product.
This thread is not for the discussion of any particular chip, but for those wanting to build temperature controlled setups using nickel and/or titanium and a chip that can control temperature of the coil.
Based on research and collective experimentation to date, the process of temperature control can be impacted by several factors that a mod builder or a person using a RDA or RTA will encounter. The first is that changes in resistance, even very small changes, can influence the performance of the TC chip. For example, if your build has a weak connection or cold solder join that can present potentially variable resistance, the TC chip will perform poorly. Additionally if your RDA or RTA has high static resistance or the potential for variable resistance, you will encounter issues.
Coil builds themselves can cause issues, micro coils that touch can change resistance over time and throw off the quality of the TC chip output. coils that are close enough to the build deck so that juice will create a variable resistance connectivity path will also throw off the TC chip, as will coils that are not attached well to the posts.
Finally, the TC chip has to make some assumptions about the environment, i.e. is the atty at the same starting temperature as the mod? Consider the following: A mod that has been in your pocket and is at 85F and an atty that has been on the shelf in your 65F room will work poorly as the TC chip will assume that the atty is at 85F and base its wattage output to get your desired temperature off the assumption that the starting temp of the atty was substantially warmer than it was. To fight this, most chips attempt some sort of "refinement" over time, when if left alone, they recalculate the base resistance of the coil based on the assumption that if it has not been used for some time, the coil is likely to be the same temperature of the mod.
I hope this thread can be a source of discussion in controlling these variables, in understanding how they interact and in helping make these chips work really well in our mods.
This thread is not for the discussion of any particular chip, but for those wanting to build temperature controlled setups using nickel and/or titanium and a chip that can control temperature of the coil.
Based on research and collective experimentation to date, the process of temperature control can be impacted by several factors that a mod builder or a person using a RDA or RTA will encounter. The first is that changes in resistance, even very small changes, can influence the performance of the TC chip. For example, if your build has a weak connection or cold solder join that can present potentially variable resistance, the TC chip will perform poorly. Additionally if your RDA or RTA has high static resistance or the potential for variable resistance, you will encounter issues.
Coil builds themselves can cause issues, micro coils that touch can change resistance over time and throw off the quality of the TC chip output. coils that are close enough to the build deck so that juice will create a variable resistance connectivity path will also throw off the TC chip, as will coils that are not attached well to the posts.
Finally, the TC chip has to make some assumptions about the environment, i.e. is the atty at the same starting temperature as the mod? Consider the following: A mod that has been in your pocket and is at 85F and an atty that has been on the shelf in your 65F room will work poorly as the TC chip will assume that the atty is at 85F and base its wattage output to get your desired temperature off the assumption that the starting temp of the atty was substantially warmer than it was. To fight this, most chips attempt some sort of "refinement" over time, when if left alone, they recalculate the base resistance of the coil based on the assumption that if it has not been used for some time, the coil is likely to be the same temperature of the mod.
I hope this thread can be a source of discussion in controlling these variables, in understanding how they interact and in helping make these chips work really well in our mods.
