World-Designs-Forum  

Go Back   World-Designs-Forum > World Designs > General
Register FAQ Members List Calendar Gallery Today's Posts Mark Forums Read

General For anything else WD or hifi

Reply
 
Thread Tools Display Modes
  #11  
Old 29th October 2012, 11:13 PM
A Stuart A Stuart is offline
Senior Member
 
Join Date: Jan 2006
Location: Selkirk, Scotland
Posts: 403
Default Re: Which multi meter to buy?

PS
.. take care if reading the colour bands under "low energy" light bulbs, though the newer ones seem to have a rather more continuous spectrum than years ago. I presume I am not the only one who has difficulty.

Alastair
Reply With Quote
  #12  
Old 30th October 2012, 10:55 AM
pre65's Avatar
pre65 pre65 is offline
Senior Member
 
Join Date: Jan 2006
Location: Ashen- Essex/Suffolk bord
Posts: 4,538
Default Re: Which multi meter to buy?

Quote:
Originally Posted by pre65 View Post
I use one of these, I think mine came from Maplins.

http://www.ebay.co.uk/itm/Magnifier-...item2a246b19cf

Search e-bay for "helping hands" to find loads.
An additional benefit is using the magnifier to read resistor colours.
__________________
Philip.

Everything in this post is my honest opinion based on what i thought I knew at that very moment in time.
Reply With Quote
  #13  
Old 30th October 2012, 12:05 PM
justin brown justin brown is offline
Senior Member
 
Join Date: Sep 2010
Location: cambridge, uk
Posts: 120
Default Re: Which multi meter to buy?

A change of plan to my holidays.
I went to Maplins this morning and bought some crocodile clips and the helping hand with magnifier. Thanks Philip.

I have checked the resistor values using the electronics 2000 program. 6 out of 8 were identified correctly. However, I have one which I am not sure about, so I thought I'd check here first. The last remaining resistor is a 1K 3w metal oxide film type. It should be in R4. Using the colour code calculator, it should be BROWN, BLACK, BLACK, BROWN, GOLD.
What I have is BROWN, BLACK, BLACK, ORANGE, BROWN.
I am not sure how to identify this value, I assume the value must be near what it should be, and not 'off the scale'?

Also, when using my DMM, setting it to ohms (200 on my mm) - please confirm if this correct?; my 130R shows up as 1.3; whereas the 100R shows up as 0.1. Surely, it should be 1; and not 0.1???

Justin.
Reply With Quote
  #14  
Old 30th October 2012, 12:21 PM
bob orbell bob orbell is offline
Senior Member
 
Join Date: Nov 2009
Location: kettering northants.
Posts: 2,734
Default Re: Which multi meter to buy?

Brown Black Black Orange Brown is 100,000 1%
Reply With Quote
  #15  
Old 30th October 2012, 01:05 PM
justin brown justin brown is offline
Senior Member
 
Join Date: Sep 2010
Location: cambridge, uk
Posts: 120
Default Re: Which multi meter to buy?

Thanks Bob. Then it fits. Strangely, the program couldn't identify that one.
Reply With Quote
  #16  
Old 30th October 2012, 01:10 PM
justin brown justin brown is offline
Senior Member
 
Join Date: Sep 2010
Location: cambridge, uk
Posts: 120
Default Re: Which multi meter to buy?

Oh dear, I've just noticed that Bob's post is 100K, not the 1K as listed on the spec sheet. Does this matter?
Reply With Quote
  #17  
Old 30th October 2012, 01:17 PM
bob orbell bob orbell is offline
Senior Member
 
Join Date: Nov 2009
Location: kettering northants.
Posts: 2,734
Default Re: Which multi meter to buy?

Justin if you want 1000 ( 1k ) five band is Brown Black Black Brown four is Brown Black Red
Reply With Quote
  #18  
Old 30th October 2012, 01:23 PM
justin brown justin brown is offline
Senior Member
 
Join Date: Sep 2010
Location: cambridge, uk
Posts: 120
Default Re: Which multi meter to buy?

Ok, so I have a much higher value resistor than is required. I entered in the correct details to the program and, right enough, the colours are correct. So, I have a resistor X 100 higher in value than is listed. I assume I should buy a correct (1K) replacement?
Reply With Quote
  #19  
Old 30th October 2012, 01:25 PM
pre65's Avatar
pre65 pre65 is offline
Senior Member
 
Join Date: Jan 2006
Location: Ashen- Essex/Suffolk bord
Posts: 4,538
Default Re: Which multi meter to buy?

Quote:
Originally Posted by justin brown View Post

Also, when using my DMM, setting it to ohms (200 on my mm) - please confirm if this correct?; my 130R shows up as 1.3; whereas the 100R shows up as 0.1. Surely, it should be 1; and not 0.1???

Justin.
That sounds sensible to me.

If you measure both resistors in series do you get 1.4 ?
__________________
Philip.

Everything in this post is my honest opinion based on what i thought I knew at that very moment in time.
Reply With Quote
  #20  
Old 30th October 2012, 01:31 PM
justin brown justin brown is offline
Senior Member
 
Join Date: Sep 2010
Location: cambridge, uk
Posts: 120
Default Re: Which multi meter to buy?

1.5!
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 10:10 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright World Designs