Auto Darkening reaction times??

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Set me strait here, is it the LOWER the number the faster it changes/darkens or higher??like a 1/3,600 sec. changes/darkens faster then a 1/12,000 sec.i think  lower is faster or am i back wards?? also how many sensors do you like to see on a helmet??HOBART IronMan 230 MIGSmith Lifetime WH200 HD O/A Torch
Reply:higher is faster.would you like it to darken in 1/2 a second or 1/16 a second?UA Local 598
Reply:they all "darken" at the same time.. instantaneous... it's after the arc has been lifted is what that knob does.. you want more of a delay when, say, tigging aluminum because the tungsten is so bright even after you come off the arc.. so you set it higher (the delay knob).. when welding outside in the high-line or on the iron, you want your delay as minimal as possible so you don't fall off when welding.. lol... these are just some of the examples of what you would use the delay for.. well.. it's what i use the delay for.. especially when on the iron..if you're not livin on the edge, you're takin up too much room..
Reply:Originally Posted by ibanezed4yrsthey all "darken" at the same time.. instantaneous... it's after the arc has been lifted is what that knob does.. you want more of a delay when, say, tigging aluminum because the tungsten is so bright even after you come off the arc.. so you set it higher (the delay knob).. when welding outside in the high-line or on the iron, you want your delay as minimal as possible so you don't fall off when welding.. lol... these are just some of the examples of what you would use the delay for.. well.. it's what i use the delay for.. especially when on the iron..
Reply:Originally Posted by SupeThat is incorrect.  The "delay" as referred to here is the response time that the auto dark unit can actually darken itself after the light source hits the sensors.
Reply:DAFFY DUCK IS RIGHTANYBODY EVER READ THE MANUALS??????Ok;, like we gotta guy that can't do math, another guy that can't read..................... Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Originally Posted by SupeThat is incorrect.  The "delay" as referred to here is the response time that the auto dark unit can actually darken itself after the light source hits the sensors.  The cheap hoods typically have a longer delay than the top dollar hoods.  The delay as you're referring to it is what would typically be referred to as the sensitivity adjustment.As far as the number of sensors, I wouldn't personally use a hood with less than 4 sensors.  With only two, even a slight obstruction can cause the unit to flicker.
Reply:You guys are comparing apples to oranges. The original question was about reaction time of the lense, then Daffy Duck introduced the delay (which he is correct about) into the conversations. For reaction time you want the smallest number on top and the largest number on the bottom. This will equal the fastest reaction time, with the lesser chance of geting flashed. But remember, at some point it becomes so fast you will never notice the difference.If you cannot convince them, confuse them.         Harry S Truman
Reply:But it's entertaining. ROFLMAO"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Originally Posted by 500HpSilveradoYou guys are comparing apples to oranges. The original question was about reaction time of the lense, then Daffy Duck introduced the delay (which he is correct about) into the conversations. For reaction time you want the smallest number on top and the largest number on the bottom. This will equal the fastest reaction time, with the lesser chance of geting flashed. But remember, at some point it becomes so fast you will never notice the difference.
Reply:Ok..............................We got numerators, and denominatorsThe numerator is on top of the fraction, the denominator is on the bottom.The numerator is divided by the denominator.1/2 = 1 divided by 21/10 = 1 divided by 10Obviously 1/10 yeilds smaller increments of time..........ie. FASTERMiller's helmet vs. Lincoln's Viking (both in the same price range) is a slower darkening helmet because the fraction yields larger increments of time. 1/12,000 is slower than 1/25,000Last edited by farmersamm; 02-22-2010 at 10:36 AM.Reason: wrong model name"Any day above ground is a good day"http://www.farmersamm.com/
Reply:some spelling errors..........so sue me"Any day above ground is a good day"http://www.farmersamm.com/
Reply:..... Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:on what helmet would you adjust the reaction time?... and why?..if you're not livin on the edge, you're takin up too much room..
Reply:Originally Posted by farmersamm:Miller's helmet vs. Lincoln's Viking (both in the same price range) is a slower darkening helmet because the fraction yields larger increments of time. 1/12,000 is slower than 1/25,000
Reply:Ok.....what helmet is FASTER at going dark?, thats all i care about right now.A- 1/3,600 sec.ORB- 1/12,000 sec.HOBART IronMan 230 MIGSmith Lifetime WH200 HD O/A Torch
Reply:B) 1/12,000
Reply:It might be a good idea to just stick with the Homer hood..............it's Homer proof Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:lol.. you can't even blink your eyes that fast man..if you're not livin on the edge, you're takin up too much room..
Reply:Originally Posted by farmersammIt might be a good idea to just stick with the Homer hood..............it's Homer proof
Reply:to get a reasonable understanding, simply divide the fraction in question and convert into a decimal form.Esab Migmaster 250Lincoln SA 200Lincoln Ranger 8Smith Oxy Fuel setupEverlast PowerPlasma 80Everlast Power iMIG 160Everlast Power iMIG 205 Everlast Power iMIG 140EEverlast PowerARC 300Everlast PowerARC 140STEverlast PowerTIG 255EXT
Reply:this thread is destined to become an all time classic:d:d Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:from a practical aside I've never known anyone who can claim they can tell the difference in speed change between 1/12,000 and 1/20,000  or have it affect your eyes.  The shields have built in UV filters, which take out the most harmful portion of welding radiation. so even if your helmet has blocked sensors or a low battery it will still provide good protection.also the time in which is switches is based on the temperature too.
Reply:Originally Posted by damanYES thats what i am talking about asking,to better prevent flash.
Reply:Originally Posted by Broccoli1If someone is tack welding all day long then a Hood with the Fastest reaction time is the hood you want to purchase as the constant "Flashing" that occurs with the slower reaction time may cause Eye fatigue. As mentioned you can not blink fast enough.Samm must be really bored this am
Reply:Originally Posted by damanI don't h a v e the shield yet,, i wanted to know b e f o r e i bought one never owned one yet,figure i could get a quick answer from the guy's in the "know" ya know,I'm sure i will figure the rest out when i get one.thanks Supe for your answer
Reply:Originally Posted by WHughesHey, man. I answered your question right out of the gate, wheres my kudos?
Reply:Gee whizI attempted to give you the wherewithall to calculate any fraction, and interpret the result.  Merely saying 1/X is faster than 1/X doesn't really help ya.  I don't believe it's your fault, you probably had lousy teachers.  Most school teachers aren't too good these days.It's gonna be an eye opener the first time you have to read a manual micrometer  Or convert fractional metal thickness to decimal equivalentMy advice is to use a ruler with REALLY BIG NUMBERSYou've earned the award reserved for a select few Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:The criticism is not wanted move on from my thread please if you have nothing meaningful to say. Is that how you treat all new members on this site.HOBART IronMan 230 MIGSmith Lifetime WH200 HD O/A Torch