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Outdoor timer running to fast
I just wired up an Intermatic T103 timer. I noticed after 12 hours
the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. |
Outdoor timer running to fast
wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Probably a faulty timer, but check to see if it has an automatic DST switch that happened to trip if it is one hour even. |
Outdoor timer running to fast
wrote in message
oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. There is no "DST switch". I suspect an operator error. |
Outdoor timer running to fast
In article ,
"Travis Jordan" wrote: wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. There is no "DST switch". I suspect an operator error. That makes sense, but for some reason the cheapos suck at keeping time. I bought three of them on sale one day, and two of them were typically off by an hour or so after a day or two. |
Outdoor timer running to fast
Travis Jordan wrote:
wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. ... The accuracy of the input doesn't guarantee the accuracy of the output if it isn't manufactured under precise (enough) tolerances... -- |
Outdoor timer running to fast
"dpb" wrote in message ...
Travis Jordan wrote: wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. ... The accuracy of the input doesn't guarantee the accuracy of the output if it isn't manufactured under precise (enough) tolerances... The synchronous motor drives a set of fixed tooth gears which in turn drive the time display. "Manufacturing tolerances" won't cause the timing accuracy to change. The only probable cause for one of these timers to gain or lose time is either a) operating a 50 Hz timer on a 60 Hz supply, or vice-versa, or b) a power outage. http://www.allaboutcircuits.com/vol_2/chpt_13/2.html |
Outdoor timer running to fast
Travis Jordan wrote:
"dpb" wrote in message ... Travis Jordan wrote: wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. ... The accuracy of the input doesn't guarantee the accuracy of the output if it isn't manufactured under precise (enough) tolerances... The synchronous motor drives a set of fixed tooth gears which in turn drive the time display. "Manufacturing tolerances" won't cause the timing accuracy to change. ... That assumes the gears have accurate tooth spacing -- if they're off, then the timing is off... -- |
Outdoor timer running to fast
On Jul 1, 11:09 am, wrote:
I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Sometimes the manufacturers screw up and put the wrong timer motor into a piece of equipment. I have seen a 50hz motor in a timer that was supposed to for 60hz. If you take the timer out of it's case and look at the back you should be able to see the motor which will have the voltage and frequency printed on it. [8~{} Uncle Monster |
Outdoor timer running to fast
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Outdoor timer running to fast
dpb wrote:
Travis Jordan wrote: "dpb" wrote in message ... Travis Jordan wrote: wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. ... The accuracy of the input doesn't guarantee the accuracy of the output if it isn't manufactured under precise (enough) tolerances... The synchronous motor drives a set of fixed tooth gears which in turn drive the time display. "Manufacturing tolerances" won't cause the timing accuracy to change. ... That assumes the gears have accurate tooth spacing -- if they're off, then the timing is off... Actually, I'll agree on principle overall...was thinking of a short term variability possibly, but on the long term, it has to run a revolution per N cycles so not the OP's problem over 12 hours... As noted elsewhere, the ratio of 60/50 to 13/12 is close enough to make one wonder if OP order the wrong series number and got a 50Hz model or perhaps it was just mislabeled... -- |
Outdoor timer running to fast
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Outdoor timer running to fast
On Jul 1, 1:21 pm, dpb wrote:
wrote: On Jul 1, 11:09 am, wrote: I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Sometimes the manufacturers screw up and put the wrong timer motor into a piece of equipment. I have seen a 50hz motor in a timer that was supposed to for 60hz. If you take the timer out of it's case and look at the back you should be able to see the motor which will have the voltage and frequency printed on it. I didn't stop initially to consider values, but (60/50)/(13/12) ~ 1.1 which is within 10% of the difference OP observed. Not an unlikely hypothesis. Maybe he ordered the wrong subseries??? -- I was in a W.W. Grainger supply house a few years ago where they had a new wall clock that had been returned by a customer. The clock kept perfect time, except for the fact that it was running backwards. The turkeys wouldn't sell it to me. [8~{} Uncle Monster |
Outdoor timer running to fast
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Outdoor timer running to fast
On Jul 1, 7:20 pm, dpb wrote:
wrote: On Jul 1, 1:21 pm, dpb wrote: wrote: On Jul 1, 11:09 am, wrote: I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Sometimes the manufacturers screw up and put the wrong timer motor into a piece of equipment. I have seen a 50hz motor in a timer that was supposed to for 60hz. If you take the timer out of it's case and look at the back you should be able to see the motor which will have the voltage and frequency printed on it. I didn't stop initially to consider values, but (60/50)/(13/12) ~ 1.1 which is within 10% of the difference OP observed. Not an unlikely hypothesis. Maybe he ordered the wrong subseries??? -- I was in a W.W. Grainger supply house a few years ago where they had a new wall clock that had been returned by a customer. The clock kept perfect time, except for the fact that it was running backwards. The turkeys wouldn't sell it to me. Those are pretty widely available novelties -- the barbershop I frequent has had one for quite a long time... -- I know that, but this one wasn't supposed to be running backwards. I've seen the novelty clocks that are numbered anticlockwise/counterclockwise. The odd clocks catch your eye on a subconscious level then you look more closely and remark WTF. [8~{} Uncle Monster |
Outdoor timer running to fast
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Outdoor timer running to fast
wrote in message oups.com... On Jul 1, 1:21 pm, dpb wrote: wrote: On Jul 1, 11:09 am, wrote: I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Sometimes the manufacturers screw up and put the wrong timer motor into a piece of equipment. I have seen a 50hz motor in a timer that was supposed to for 60hz. If you take the timer out of it's case and look at the back you should be able to see the motor which will have the voltage and frequency printed on it. I didn't stop initially to consider values, but (60/50)/(13/12) ~ 1.1 which is within 10% of the difference OP observed. Not an unlikely hypothesis. Maybe he ordered the wrong subseries??? -- I was in a W.W. Grainger supply house a few years ago where they had a new wall clock that had been returned by a customer. The clock kept perfect time, except for the fact that it was running backwards. The turkeys wouldn't sell it to me. Chuckle. A house my family had for a couple years back in the late 60s had a built-into-the-paneled-wall kitchen clock like that. (Shaft stuck through paneling, little brass squares that served as the numbers stuck to paneling around it. Very Trendy for about a month in '66) Every time the power blipped during a thunderstorm, it would start running backwards. Nobody ever cared enough to pull it out from the access hatch in the pantry behind and diagnose it. We just ignored it, or if company was coming, flipped the breaker off and on. aem sends... |
Outdoor timer running to fast
On Jul 1, 8:37 pm, dpb wrote:
wrote: On Jul 1, 7:20 pm, dpb wrote: wrote: On Jul 1, 1:21 pm, dpb wrote: wrote: On Jul 1, 11:09 am, wrote: I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Sometimes the manufacturers screw up and put the wrong timer motor into a piece of equipment. I have seen a 50hz motor in a timer that was supposed to for 60hz. If you take the timer out of it's case and look at the back you should be able to see the motor which will have the voltage and frequency printed on it. I didn't stop initially to consider values, but (60/50)/(13/12) ~ 1.1 which is within 10% of the difference OP observed. Not an unlikely hypothesis. Maybe he ordered the wrong subseries??? -- I was in a W.W. Grainger supply house a few years ago where they had a new wall clock that had been returned by a customer. The clock kept perfect time, except for the fact that it was running backwards. The turkeys wouldn't sell it to me. Those are pretty widely available novelties -- the barbershop I frequent has had one for quite a long time... -- I know that, but this one wasn't supposed to be running backwards. I've seen the novelty clocks that are numbered anticlockwise/counterclockwise. The odd clocks catch your eye on a subconscious level then you look more closely and remark WTF. Bet me! :) The one in the barbershop is also just like that... -- Oh, I believe you, I've seen stranger things. The little old barbershop I frequent on a semiannual basis (whenever I start looking like Hagar The Horrible) has no unusual artifacts. Perhaps I shall get them one. [8~{} Uncle Monster |
Outdoor timer running to fast
On Jul 1, 8:46 pm, "aemeijers" wrote:
wrote in message oups.com... On Jul 1, 1:21 pm, dpb wrote: wrote: On Jul 1, 11:09 am, wrote: I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. Sometimes the manufacturers screw up and put the wrong timer motor into a piece of equipment. I have seen a 50hz motor in a timer that was supposed to for 60hz. If you take the timer out of it's case and look at the back you should be able to see the motor which will have the voltage and frequency printed on it. I didn't stop initially to consider values, but (60/50)/(13/12) ~ 1.1 which is within 10% of the difference OP observed. Not an unlikely hypothesis. Maybe he ordered the wrong subseries??? -- I was in a W.W. Grainger supply house a few years ago where they had a new wall clock that had been returned by a customer. The clock kept perfect time, except for the fact that it was running backwards. The turkeys wouldn't sell it to me. Chuckle. A house my family had for a couple years back in the late 60s had a built-into-the-paneled-wall kitchen clock like that. (Shaft stuck through paneling, little brass squares that served as the numbers stuck to paneling around it. Very Trendy for about a month in '66) Every time the power blipped during a thunderstorm, it would start running backwards. Nobody ever cared enough to pull it out from the access hatch in the pantry behind and diagnose it. We just ignored it, or if company was coming, flipped the breaker off and on. aem sends... Don't you just love it when devices act in an anomalous fashion? [8~{} Uncle Monster |
Outdoor timer running to fast
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Outdoor timer running to fast
Travis Jordan wrote:
"dpb" wrote in message ... Travis Jordan wrote: wrote in message oups.com... I just wired up an Intermatic T103 timer. I noticed after 12 hours the timer seems to be moving to fast (12 hours registered about 13 hours on the timer). Could I have a wiring issue or is this just a faulty clock timer? TIA. That timer uses a simple synchronous clock motor timer that depends on the 60Hz AC power for accuracy. If the clock motor runs at all it is probably keeping time. ... The accuracy of the input doesn't guarantee the accuracy of the output if it isn't manufactured under precise (enough) tolerances... The synchronous motor drives a set of fixed tooth gears which in turn drive the time display. "Manufacturing tolerances" won't cause the timing accuracy to change. The only probable cause for one of these timers to gain or lose time is either a) operating a 50 Hz timer on a 60 Hz supply, or vice-versa, or b) a power outage. http://www.allaboutcircuits.com/vol_2/chpt_13/2.html Neither (a) or (b) would cause a synchronous motor timer to gain an hour; (a) would cause it to gain 2.4 hours and (b) would cause it to lose however many hours the power was off. If the gear tolerances were off, however (tooth count or diameter off a smidge, it could well gain an hour in twelve. -- "Take sides! Always take sides! You may sometimes be wrong - but the man who refuses to take sides must *always* be wrong! Heaven save us from poltroons who fear to make a choice!" R.A. Heinlein, "Double Star" |
Outdoor timer running to fast
replying to timnels, Kenny wrote:
I don't know what sort of timer is a T103. But I have a very old (but excellently designed) Oasis Dundee 9 Station irrigation pump controller, which very recently developed an issue where its digital clock was running too fast. About an hour later, the clock would be something like 7 minutes or so ahead of 'actual' time of day. My controller doesn't appear to have a 'crystal' component on the circuit board. But it normally keeps the correct time even when AC power is switched off, and powered by a back-up battery. So there must be an oscillator circuit in my board's circuit - somewhere. The beauty of my particular irrigation controller is that it only has two electrolytic capacitors in it. I changed the smaller electrolytic capacitor (a 100 microFarad one). No improvement. I then changed the larger 470 microFarad one, which fixed the issue. As we know, due to the limits of our technology - electrolytic capacitors are probably the number 1 cause of electronic circuit failures in circuits. Since my particular board had only two capacitors, it allowed me to sort things out fairly quickly. The interesting thing is - the electrolytic capacitors do not necessarily need to be bulging (or physically broken) when they go bad or fail. But, they often will have a bulging top if they've failed. So, if your timer has electrolytic capacitors in it.... check them out. -- for full context, visit https://www.homeownershub.com/mainte...st-230136-.htm |
Outdoor timer running to fast
On 2/22/2017 6:44 PM, Kenny wrote:
replying to timnels, Kenny wrote: I don't know what sort of timer is a T103. But I have a very old (but excellently designed) Oasis Dundee 9 Station irrigation pump controller, which very recently developed an issue where its digital clock was running too fast. About an hour later, the clock would be something like 7 minutes or so ahead of 'actual' time of day. My controller doesn't appear to have a 'crystal' component on the circuit board. But it normally keeps the correct time even when AC power is switched off, and powered by a back-up battery. So there must be an oscillator circuit in my board's circuit - somewhere. The beauty of my particular irrigation controller is that it only has two electrolytic capacitors in it. I changed the smaller electrolytic capacitor (a 100 microFarad one). No improvement. I then changed the larger 470 microFarad one, which fixed the issue. As we know, due to the limits of our technology - electrolytic capacitors are probably the number 1 cause of electronic circuit failures in circuits. Since my particular board had only two capacitors, it allowed me to sort things out fairly quickly. The interesting thing is - the electrolytic capacitors do not necessarily need to be bulging (or physically broken) when they go bad or fail. But, they often will have a bulging top if they've failed. So, if your timer has electrolytic capacitors in it.... check them out. You morons have to stop responding to 10 year old posts. |
Outdoor timer running to fast
On 2/22/2017 7:44 PM, Frank wrote:
On 2/22/2017 6:44 PM, Kenny wrote: replying to timnels, Kenny wrote: I don't know what sort of timer is a T103. But I have a very old (but excellently designed) Oasis Dundee 9 Station irrigation pump controller, which very recently developed an issue where its digital clock was running too fast. About an hour later, the clock would be something like 7 minutes or so ahead of 'actual' time of day. My controller doesn't appear to have a 'crystal' component on the circuit board. But it normally keeps the correct time even when AC power is switched off, and powered by a back-up battery. So there must be an oscillator circuit in my board's circuit - somewhere. The beauty of my particular irrigation controller is that it only has two electrolytic capacitors in it. I changed the smaller electrolytic capacitor (a 100 microFarad one). No improvement. I then changed the larger 470 microFarad one, which fixed the issue. As we know, due to the limits of our technology - electrolytic capacitors are probably the number 1 cause of electronic circuit failures in circuits. Since my particular board had only two capacitors, it allowed me to sort things out fairly quickly. The interesting thing is - the electrolytic capacitors do not necessarily need to be bulging (or physically broken) when they go bad or fail. But, they often will have a bulging top if they've failed. So, if your timer has electrolytic capacitors in it.... check them out. You morons have to stop responding to 10 year old posts. Yea but, how do you know they are 10 years old. I've just looked and can't find a real date. Yes I know that I could go to the site shown in the original post, but why should we have to play detective on each post? And, using FF, how do I block all of the posts starting with "". It didn't seem to work and blocked a whole bunch of posts that didn't start with . |
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