ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Explored: Basics of PLC
by niamishra. 10/19/18 04:44 AM
Linear Power Supply Quits Under Load
by JoeTestingEngr. 10/18/18 08:47 PM
220/230/240V 60Hz Systems
by dsk. 10/17/18 01:25 PM
PLC/HMI Enclosure C2, D1
by ghost307. 10/16/18 03:31 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
1 registered members (HotLine1), 61 guests, and 23 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Sperry multimeter non true rms #161732
04/07/07 06:55 AM
04/07/07 06:55 AM
F
Frank Cinker  Offline OP
Member
Joined: Jul 2001
Posts: 311
Pennsylvania
I just purchased a nice little Sperry DSA-500 multimeter at Home Depot for $49.00. It seems to work just fine. However, it is not a true rms multimeter. Will it still measure voltage accurately?

Work Gear for Electricians and the Trades
Re: Sperry multimeter non true rms [Re: Frank Cinker] #161790
04/07/07 08:16 PM
04/07/07 08:16 PM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,250
SI,New Zealand
Depends on what sort of accuracy you require.
Any non-TrueRMS meter will test the Average voltage (as in 63.7% of the peak voltage) as opposed to 70.7% (RMS).

Re: Sperry multimeter non true rms [Re: Trumpy] #161838
04/08/07 06:31 AM
04/08/07 06:31 AM
F
Frank Cinker  Offline OP
Member
Joined: Jul 2001
Posts: 311
Pennsylvania
I just need it to test voltage drop at the outlet, neutral-ground voltage etc.

Re: Sperry multimeter non true rms [Re: Frank Cinker] #161840
04/08/07 06:40 AM
04/08/07 06:40 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,250
SI,New Zealand
By rights, there should be no voltage between these conductors.
I could be wrong too.
Frank,
A T-RMS meter is only of value to those that measure voltages with lots of harmonics on the supply.
The average electrician doesn't need to worry , I have one, but I wouldn't recommend every guy runs out and gets one.
My Fluke 80 does just as gooder job and why spend good cash when you don't have to?.

Last edited by Trumpy; 04/08/07 06:49 AM.

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
lil suzi
lil suzi
Midwest
Posts: 57
Joined: August 2003
Show All Member Profiles 
Top Posters(30 Days)
sparky 11
Popular Topics(Views)
250,443 Are you busy
188,038 Re: Forum
177,632 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.022s Queries: 15 (0.004s) Memory: 0.9605 MB (Peak: 1.0933 MB) Zlib enabled. Server Time: 2018-10-19 18:12:42 UTC