meter

The metre (Commonwealth spelling) or meter (American spelling; see spelling differences) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in the International System of Units (SI). The SI unit symbol is m.
The metre is currently defined as the length of the path travelled by light in a vacuum in 1/299 792 458 of a second.
The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. The current definition was adopted in 1983 and modified slightly in 2002 to clarify that the metre is a measure of proper length.

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  1. I

    Gas Meter attached to two pliable connectors - is it legal?

    A domestic Gas Standard pre-payment Meter was exchanged for a Gas Smart Meter (SM) and then connected back to the pre-existing pliable/semi-rigid/anaconda connectors. I believe this is illegal and breaks laws and regulations when this was done on 30 March 2017. But my Utility company who had the...
  2. J

    Meter in house, Value out of house ?

    Hi I have my gas meter in the house and shut off vale ECV out side were the meter was before, not very convenient but is this correct reg's wise ? (This work was done yesterday by gas provider) I also have a small leak by the boiler and gas supply has been caped off in ECV value. If anyone...
    • Jack P
    • Thread
    • america correct house jobs leaking meter urgent usa value
    • Replies: 10
    • Forum: USA
  3. G

    Smart meter installed correctly?

    An OVO fitter installed a gas meter and said we would smell gas for 24-48 hours. I took a look in the meter box and saw a load of putty and sealant around pipe that goes into the property. Just wondered if this looks like it's been done correctly? Or if we should get it looked at.
  4. T

    Does a gas meter need a mounting bracket?

    I am currently studying to pas as a gas engineer and I have come stuck on some of The modules and can’t seem to find the answers anywhere. Q1. A gas meter can be installed without a mounting bracket or support shelf, only when A1. The supporting pipework either side Is constructed of rigid...
    • Tpritch
    • Thread
    • bracket gas gas meter meter mounting
    • Replies: 11
    • Forum: Canada
  5. C

    Do I need a 2nd gas meter or will upgrade suffice?

    Hello - I would appreciate your help on the question of whether I need a 2nd gas meter. At present I have a U6 meter serving a WB combi 28kw, a gas hob 8kw (downstairs) and a 49 yr old Glow-worm boiler (14kw) (upstairs). The Glow-worm boiler has finally packed up and has been disconnected as it...
    • Cerendib
    • Thread
    • gas gas meter gas meter flow rate volume kw gas meter specs gas meter volume calcs is 2nd gas meter needed max gas meter capacity meter u6 and u16 meters upgrade
    • Replies: 25
    • Forum: Plumbing Jobs | The Job-board
  6. A

    built in meter box clearances

    does anybody know the required clearances for built in gas meter box and service pipe from an air vent/ openable window. i have seen 150 mm in a photo, but haven't got access to British standards to check
  7. moonlight

    Pre payment meter not accepting card

    I have a customer that has just called me as she has no gas. Went round to find out what the issue was. Pre payment meter not accepting the card. Credit on the card but meter not accepting. Her supplier is not open today. Anyone know where she can get help. They have 5 children and one is...
  8. S

    Boiler pilot light won't stay lit after meter change

    We just had our meters changed from prepayment to smart meters. The boiler was lit after with no leaks, but has subsequently gone out and won't stay lit anymore. There is still a good gas supply to the cooker so I don't think it's a supply issue. Any ideas???
  9. M

    External water meter connection

    Hi all, I am upgrading my external water supply pipe to 25mm MDPE. I have an external water meter just on the boundary of my property and was wondering what the connection will be off the meter?
  10. C

    Todays Strange Meter Connections

    I may be being really dumb here, come across this today. ECV basically flush with the floor allthough perfectly accessible. then 2meters of lead pipe going out to the regulator through the meter sat on a shelf, then another GSR has piped 22mm away from it obviously in a strange route. Although...
  11. J

    Gas meter relocation

    Hi guys, posting about this again because I want to be absolutely sure before I do it. I’ve been supplied with a 22mm lever valve as my additional ECV. Is this ok ? If so I’d have copper going into it from the main ECV then coming out of it to the Annaconda, so what are the correct fittings to...
  12. J

    Moving gas meter advice

    next week I will be doing a kitchen where the gas meter has to be moved a couple of feet. I have MET 1 but I’ve never had to move a meter before so I’m looking for advice. Please correct me if I’m wrong but what I’m thinking is.. Disconnect Anaconda from ECV. Attach new fitting to ECV ( is a...
  13. R

    Ideal Logic + Combi "Flame loss post Stabilisation" error after Smart Meter installation

    Hi all, First off, I'm just a homeowner looking for advice, I'm not a gas engineer. On Friday I had smart meters installed and 5 times since then (never previously), the 3-year-old Ideal Logic + Combi boiler has made a fairly loud humming/vibrating noise while running hot water for a few...
  14. M

    Bonding present and before and tees, but not within 600mm from meter.

    As the title how would people report this on a Cp12? The bondings present, visible and before any tees. However its is not within 600mm of the meter. Thanks.
  15. B

    G4 meter max kwts that can be run off it?

    Got to do a gas safety certificate on a big house! Property has 3 boilers, range cooker and inset gas fire. Total of 70kwts. Aprox 45 mtrs of 28 mm copper pipe. Gas volume is 0.0347 so I'm just below the limit for domestic, but does any one know what the max kwts I can run off the G4 meter? And...
  16. hammers4spanner

    Meter box and pipework

    Had a look at a job today where new gas pipe is to be run through the property . Outside on the wall it has a semi recessed meter box and customer wants gas pipe to go through rear off thd box so no pipe showing outside. Didnt the rules change on this couple years ago?
  17. CorgiDirect

    NEW Anton Pressure Meter and Gas Leak Detector Range now available

    VIEW MORE INFO HERE
  18. J

    meter to boiler pipe size

    Hi, In the near future would like to change standard boiler for either same or combi , meter is at one corner of house and boiler diagonally opposite, pipe starts at 22mm from meter but ends up 15mm at boiler, concrete floors so assuming pipe goes up to and into 1st floor cavity and accross...
  19. Darren Jackson

    Gas meter display blank

    Come to service a boiler, fire & gas hob, but the battery in the E6 meter display appears to be dead or the thing is broken. So there is no way I can gas rate the appliances! What would you guy's do? The home owner has just moved in and says she has been in touch with BG as she can not take a...
  20. M

    Digital gas meter not a E6 or smart meter.

    I work on new builds so mainly come across smart meters. Though we do some boiler replacements too. I have the meter shown below a digital one but not a smart meter or E6?

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