Installing a Second Meter


Old 05-12-07, 10:35 AM
Thread Starter
Join Date: Apr 2007
Posts: 31
Received 0 Votes on 0 Posts
Arrow Installing a Second Meter

I am installing a second meter to keep track of my tenants electrical use. I am wondering how to calibrate it and what the different adjustment screws control; ie: S and F screws, and if these have something to do with the calibration and what exactly S and F means.
Thanks you.
Sponsored Links
Old 05-12-07, 10:51 AM
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
Received 0 Votes on 0 Posts
Bee very careful what you do. In most places in the US it would be illegal for YOU to meter and sell electricity.
Old 05-12-07, 11:13 AM
Thread Starter
Join Date: Apr 2007
Posts: 31
Received 0 Votes on 0 Posts
I did not know that, why do they sell meters at the hardware store then?

I did not want to sell electricity, only keep track to avoid battles of electric bills. He thinks I use more then him and I know he uses more then me etc. etc.
I guess if it might be illegal I will return my ilegal meter to the Corperate hardware store where I bought it. They shouldn't sell things that are ilegal. Or they should at least put a warning on the box....
Old 05-12-07, 12:16 PM
nap's Avatar
nap is offline
New Member
Join Date: May 2006
Location: north
Posts: 4,163
Received 1 Vote on 1 Post
I doubt it would be illegal to install and read the meter but in some states there are laws as to what must be done if you are charging the tenant for what any particular meter is reading.

I ,as well did not know you could simply buy a meter from the hdwe store (although I have seen, and even installed, some elect meters for customers). I would suggest that since you bought the meter, there would be instructions as to what any adjustment on the meter would do and when and why to do it included with the meter.

If not, the manufacturer may have a website where you could look for answers.
Old 05-12-07, 12:35 PM
Join Date: Sep 2002
Location: welland ontario
Posts: 7,520
Received 236 Votes on 207 Posts
IF those are calibration screws then you can't adjust them properly. It would need to bench calibrated at certified facility.
Old 05-12-07, 01:10 PM
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
Received 0 Votes on 0 Posts
Stores and catalogs sell things all the time that are illegal in some states, even in the state they are illegal in. Some things that are illegal to use may not be illegal to sell.

I do not know what you can and can't do where you live as far as metering and/or charging for electricity for a tenant. I am only suggesting that you very carefully research what you can and can't do so that you don't get yourself into legal trouble.
Old 05-17-07, 06:10 PM
WFO is offline
Join Date: Feb 2004
Location: usa
Posts: 247
Received 0 Votes on 0 Posts
S and F stand for slow and fast. You turn the screw in the direction of whichever you need to do. The one you are probably looking at on the front is the full load calibration screw...there is another light load calibration screw on the side.
The meter will have a "test amps" printed on the front nameplate (most likely 30 amps). This is the current you would test the full load adjustment with rated volts (240) at unity power factor. The light load adjusment is made at 10% of the full load (i.e., 10% of 30 or 3 amps).

None of this will do you any good because you need something to test it against (normally a "standard" meter) which you will not have access to. However, unless the meter has already been tampered with, it will most likely be more than accurate enough for your needs.
Old 05-17-07, 06:34 PM
Join Date: Aug 2005
Location: USA
Posts: 995
Received 1 Vote on 1 Post
Did it come with instructions? If you just can't understand them (or didn't read them) at least tell us the make and model and maybe we can research what you bought.
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: