Author Topic: Why nowday handheld dmms miss power button?  (Read 633 times)

0 Members and 1 Guest are viewing this topic.

Offline 001

  • Frequent Contributor
  • **
  • Posts: 971
  • Country: aq
Why nowday handheld dmms miss power button?
« on: August 11, 2019, 10:03:47 am »
Why nowday handheld dmms miss power button?  :-//
I need in only voltage readings in a 50V range for weeks.
I want to turn selector in ONE position and on/off meter with button quickly
 

Offline The Soulman

  • Frequent Contributor
  • **
  • Posts: 665
  • Country: nl
  • The sky is the limit!
 

Offline 001

  • Frequent Contributor
  • **
  • Posts: 971
  • Country: aq
Re: Why nowday handheld dmms miss power button?
« Reply #2 on: August 11, 2019, 10:26:58 am »
 

Offline Electro Detective

  • Super Contributor
  • ***
  • Posts: 2054
  • Country: au
Re: Why nowday handheld dmms miss power button?
« Reply #3 on: August 11, 2019, 10:35:52 am »

Having a selector switch turn ON to AC Voltage first, keeps newbs and absent minded techs and EEs out of hospitals, funeral ceremonies, flower shops, and court rooms  :scared:

If you don't mind all that, fit a battery switch on the meter  :-DMM

 
The following users thanked this post: Mr. Scram

Offline Specmaster

  • Super Contributor
  • ***
  • Posts: 7337
  • Country: gb
Re: Why nowday handheld dmms miss power button?
« Reply #4 on: August 11, 2019, 10:41:14 am »
Simple, grab yourself one of these bad boys on Ebay, its a Metrix MX52. They don't appear very often in the UK, but they might well be more common in what ever part of the world you are. I say that because it your user details do not list or show a valid location for you other than Antarctica which I don't believe is correct  :-//
Who let Murphy in?
 
The following users thanked this post: 001

Offline CDaniel

  • Regular Contributor
  • *
  • Posts: 213
  • Country: ro
Re: Why nowday handheld dmms miss power button?
« Reply #5 on: August 11, 2019, 10:58:24 am »
Many cheap and expensive multimeters have power button , so I don't see the missing problem . However it is cheaper to have it on the switch , than a soft power button or a mechanical on/off button  ;D
For cheap look at Mastech models for example .
 

Offline Electro Detective

  • Super Contributor
  • ***
  • Posts: 2054
  • Country: au
Re: Why nowday handheld dmms miss power button?
« Reply #6 on: August 11, 2019, 11:11:25 am »
Yes, most cheap meter Power switches may supply a free awesome BANG!  :o
with the leads plugged into the 10A non-fused current sockets,
and the selector sticky taped down to read Voltage,
to save a second or two on turn on  :palm:
 

Offline 001

  • Frequent Contributor
  • **
  • Posts: 971
  • Country: aq
Re: Why nowday handheld dmms miss power button?
« Reply #7 on: August 11, 2019, 11:37:00 am »
Yes, most cheap meter Power switches may supply a free awesome BANG!  :o
with the leads plugged into the 10A non-fused current sockets,
and the selector sticky taped down to read Voltage,
to save a second or two on turn on  :palm:

WHY? My 20 years old mastrech M890 still works fine
and it prowides with big pink power button
But newest models are lack this option
 

Offline CDaniel

  • Regular Contributor
  • *
  • Posts: 213
  • Country: ro
Re: Why nowday handheld dmms miss power button?
« Reply #8 on: August 11, 2019, 12:36:32 pm »
Yes, most cheap meter Power switches may supply a free awesome BANG!  :o
with the leads plugged into the 10A non-fused current sockets,
and the selector sticky taped down to read Voltage,
to save a second or two on turn on  :palm:

If you forgot the probe in Amp plug , when trying to measure volts there will be a bang with or without a power button  ;D , even with the meter turned off , so you are missing something very obvious ... ( hint - the high current is not passing through the switch , the shunt + fuse is directly between Amp and COM)
As I said some cheap  meters  have power button , but also many expensive meters , so this is not a lack of safety in any way .
« Last Edit: August 11, 2019, 12:44:27 pm by CDaniel »
 

Offline Kean

  • Supporter
  • ****
  • Posts: 876
  • Country: au
  • Embedded systems & IT consultant
    • Kean Electronics
Re: Why nowday handheld dmms miss power button?
« Reply #9 on: August 11, 2019, 01:47:43 pm »
Many of the Tenma brand multi-meters have a separate power button.  They're not great meters, but not terrible either.
 

Offline CDaniel

  • Regular Contributor
  • *
  • Posts: 213
  • Country: ro
Re: Why nowday handheld dmms miss power button?
« Reply #10 on: August 11, 2019, 02:40:27 pm »
Fluke 289 has a soft power button ... the predecessor Fluke 189 has the OFF on the switch . Some people prefer to just press the power button and to be in the last used mode - volt , resistance , current ...
« Last Edit: August 11, 2019, 02:43:09 pm by CDaniel »
 

Offline joeqsmith

  • Super Contributor
  • ***
  • Posts: 5658
  • Country: us
Re: Why nowday handheld dmms miss power button?
« Reply #11 on: August 11, 2019, 02:52:32 pm »
The free HF meter has a separate switch.   I guess you could modify it to use a button.  I had a Mastech that used a button as well as a Gossen and UNI-T.   They are still available so I am not seeing the problem.   
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Online ArthurDent

  • Frequent Contributor
  • **
  • Posts: 827
  • Country: us
Re: Why nowday handheld dmms miss power button?
« Reply #12 on: August 11, 2019, 02:56:27 pm »
Here's a really cheap multimeter I ended up with that has a separate on/off switch. Note that the markings are actually printed on a piece of colored paper and stuck on the front of the case and could just as easily be peeled off. Inside it has almost no protection and I only use it for low voltage D.C. where I want a large display and would never, never use it on A.C. line voltage. 
 
The following users thanked this post: 001

Online DaJMasta

  • Super Contributor
  • ***
  • Posts: 1538
  • Country: us
    • medpants.com
Re: Why nowday handheld dmms miss power button?
« Reply #13 on: August 11, 2019, 04:58:26 pm »
I prefer ones without it.  When you get to auto ranging, it's not that many positions to select through, and if you toss it in your bag or otherwise store it in the way a handheld meter would be stored, a dial has a very, very small chance of turning on and using your battery, whereas a button has a much bigger one.  Sure, it's not going to be much battery because it's going to turn off without activity in a few minutes, but why complicate it when the dial does fine on its own?
 

Offline 001

  • Frequent Contributor
  • **
  • Posts: 971
  • Country: aq
Re: Why nowday handheld dmms miss power button?
« Reply #14 on: August 11, 2019, 05:27:02 pm »
Here's a really cheap multimeter I ended up with that has a separate on/off switch. Note that the markings are actually printed on a piece of colored paper and stuck on the front of the case and could just as easily be peeled off. Inside it has almost no protection and I only use it for low voltage D.C. where I want a large display and would never, never use it on A.C. line voltage.

Holy design! The best multimeters I ever use based on 7106 chip  :-+ But still no adequate replacement to M890  :-//
 

Offline CDaniel

  • Regular Contributor
  • *
  • Posts: 213
  • Country: ro
Re: Why nowday handheld dmms miss power button?
« Reply #15 on: August 11, 2019, 07:39:39 pm »
I told you to look at Mastech multimeters ... I don't want to advertise them , but if you want cheap crap you have some choices like this http://www.mastech-group.com/products.php?PNo=155 and many more . The manual range ones in general have the power button .
 

Online james_s

  • Super Contributor
  • ***
  • Posts: 8898
  • Country: us
Re: Why nowday handheld dmms miss power button?
« Reply #16 on: August 11, 2019, 10:03:15 pm »
If you only want to measure voltage, why don't you just get a panel mount volt meter? They are cheap and will do exactly what you want.
 

Offline Electro Detective

  • Super Contributor
  • ***
  • Posts: 2054
  • Country: au
Re: Why nowday handheld dmms miss power button?
« Reply #17 on: August 12, 2019, 10:32:08 am »
Here's a really cheap multimeter I ended up with that has a separate on/off switch. Note that the markings are actually printed on a piece of colored paper and stuck on the front of the case and could just as easily be peeled off. Inside it has almost no protection and I only use it for low voltage D.C. where I want a large display

and would never, never use it on A.C. line voltage.


I have two of those exact meters, re-badged for Jaycar in Australia, and have used them for everything sacrificial  including 240 volt AC voltage checks,
and they still go strong 15+ years later, and easy on the 9v batteries.

The leads are cheap crap, but usable after a bit of TLC 

They are also theft proof, unlike the Flukes  :-DMM :-DMM  that attract beer impregnated tradies and suss ice/crack heads, like models on a catwalk   


Still, I look where the leads are plugged in and where the rotating selector is parked, before I hit the BANG! potential switch  :scared:

« Last Edit: August 12, 2019, 10:38:12 am by Electro Detective »
 

Offline CDaniel

  • Regular Contributor
  • *
  • Posts: 213
  • Country: ro
Re: Why nowday handheld dmms miss power button?
« Reply #18 on: August 12, 2019, 07:04:56 pm »
Years ago the quality wasn't bad for cheap multimeters ... but I strongly believe that  new ones won't last that long  ;D
 

Offline sambonator

  • Regular Contributor
  • *
  • Posts: 69
  • Country: us
Re: Why nowday handheld dmms miss power button?
« Reply #19 on: August 12, 2019, 09:10:41 pm »
Just turn it on and measure, AC, DC, or Ohms.

 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf