| Products > Test Equipment |
| Why do we want fast continuity detection in a multimeter? |
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| floobydust:
It's called "negative contrast" and pretty sure it's transreflective, meaning it needs a backlight but can sorta work with ambient lighting. I have a Mestek like that and I like it because the display glows and has much better readability than the usual LCD. If you want superfast continuity checking, go analog, go audible. There are no speed standards for multimeters other than watching a youtube review and speculation. A proper test would involve switching on/off a resistance and measuring response time at the beeper. Most DMM's clunk along auto-ranging which is the biggest time hog. Then the filtering and beep threshold time is there too. |
| Fungus:
--- Quote from: Hogwild on June 12, 2023, 03:15:41 am ---So, if no one knows whether Zotek has a meter with similar display but better continuity testing... --- End quote --- I'm not sure what the problem is. The meter certainly doesn't look slow in this video: https://youtu.be/QYLISmyvlis?t=692 |
| HKJ:
--- Quote from: nctnico on June 05, 2023, 11:58:08 am --- --- Quote from: CatalinaWOW on June 05, 2023, 05:05:00 am ---I agree with the many prior posts that say that fast is good. I have seen no specific statements about how fast is good enough. --- End quote --- For swiping pins you basically need less than 1 millisecond response time. Even a 1 millisecond pulse to a buzzer will produce an audible 'click' and that is what is needed when swiping pins. --- End quote --- That depends on how fast you sweep, it can work with 10ms (That is 100 pins a second, but in praxis you will have to do it slower), but 100ms is too slow in my opinion. |
| nctnico:
--- Quote from: HKJ on June 12, 2023, 07:38:22 am --- --- Quote from: nctnico on June 05, 2023, 11:58:08 am --- --- Quote from: CatalinaWOW on June 05, 2023, 05:05:00 am ---I agree with the many prior posts that say that fast is good. I have seen no specific statements about how fast is good enough. --- End quote --- For swiping pins you basically need less than 1 millisecond response time. Even a 1 millisecond pulse to a buzzer will produce an audible 'click' and that is what is needed when swiping pins. --- End quote --- That depends on how fast you sweep, it can work with 10ms (That is 100 pins a second, but in praxis you will have to do it slower), but 100ms is too slow in my opinion. --- End quote --- No. Because the time the contact is actually made is much less than 10ms. Keep in mind pins typically have dirt on them that needs to be pierced through with the probe before making contact. 1ms really is a good number here. |
| Fungus:
--- Quote from: nctnico on June 12, 2023, 08:36:43 am ---No. Because the time the contact is actually made is much less than 10ms. --- End quote --- Depends on how fast you sweep. And really, on how often, too. If you only do it occasionally then you can do it a bit more carefully. |
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