As of right now, nearly 2019, the average price for a therm is $0.50 USD. With the appliance running on full stage, measure how long it takes for the smallest scale on the gas meter to make one complete revolution 3,600 seconds / 1 hour 1,000 BTU / 1 Cu. “Turning Gas Off to the Unit” and call your the gas supplier. 2. 36. Divide by two and compare to time on the Gas Meter Clocking Chart table. They have radio controlled devices that talk to the gas meter and the gas meter reports how many times the dial has spun since the last reading. (Furnace) Gas meter clocked inaccurately. Ask your supply house for their gas meter clocking chart. Go to your home’s gas meter and time the number of seconds it takes for the gas meter smallest dial to complete one whole revolution. Whether your a gas professional or natural gas fueled homeowner Meter Buddy lets you easily track your meter readings. But as a homeowner, do you know about your gas meter? Wiring Diagram for G60UHV−1, −2 and −3 Units. Ft. Dial: Gas Flow CFH = 10X … [ gas meter chart ] For 1 Cu. Dial: Gas flow CFH = Chart Flow Reading divided by 4 For 5 Cu. Charting for some people can be difficult. Gas pressure = 5psi (equates to a correction factor of 1.34) Gas volume = 350 cubic feet (Assuming 1,000btu/cf for Natural Gas) Time = 103 seconds (equates to 0.0286 hours) This data tells me our gas flow is approximately 12,233cfh @ 5psi. Using the smallest dial in residential applications is recommended. If your dial seems to turn no matter what, don’t forget, all your appliances have a pilot light that constantly use a little gas. If your meter is an old imperial gas meter, which will measure gas in cubic feet, it will have the words "cubic feet" or the letters ft3 shown on the front of the meter. Order) Lead Time: 30 days; FOB Port: Shenzhen; Inquire Now Save Compare Chat. Ft. Natural Gas 3. 2. Ft. Keep in mind that when you clock a meter, you should shut off all gas appliances (and their pilot lights) for an accurate reading. I have a chart for clocking metric meters and as stated earlier on a .01 m3/rev test dial @ 19 sec/per rev you are looking at approx. Using the chart, this translates to 62 cubic feet per hour. Certification TABLE 16 All units are C.S.A. Cubic Feet per Hour (CFH) = (3600 x Dial Sze) / Time (seconds) CFH x 1000 Btu's = Input Btu/hr. Turn off all gas appliances, except the one you want to test (pilots can be left on since their usage is small). Dial, 1 Cu. #6 – Multiply the dial size by 3600 (3600 is the number of seconds in an hr, so if it's a 1/2 cu/ft dial, it would be 1,800. This will give the rate of the gas flowing through the meter in cubic feet per hour. 1. Multiple Meter Set..... 28 3. Meter Set ..... 27 2. insure correct input clocking the meter will verify the input. Plug the meter drive (cubic feet) and the time (seconds) into the following equation: Flow rate = (volume of the drive dial)/ (Time for one revolution of drive dial in seconds) x 3600. This is an example of how fast a gas meter will turn at 1 therm an hour on a 2 cubic foot dial. Gas Flow CFH = Chart Flow Reading divided by 2, Gas flow CFH = Chart Flow Reading divided by 4, Gas Flow CFH = 10X Chart Flow Reading divided by 4. If your meter is a newer metric meter, which measures gas in cubic meters, it will state "cubic meters" or display M3 on the front of the meter. © NCI, Inc. 2009 If propane/LP (and you have a meter in the line to clock) it's 2,500 BTU/cu ft of gas. If you plan on measuring gas meters frequently, download Meter Buddy the Gas Meter Clocking App for android or iOS. All diaphragm gas meter sizes and models in stock with free shipping on orders over $100! © 2018 Reasonable App Company | Powered by. The Procedure 1. gas rate - cubic feet per hour and kilowatts metric meters - test dial drive 1305a_2017_03 seconds for one 3 revolution kw ft3 / h kw ft / h kw ft 3 / h 10 37 127 186 637 372 1271 11 34 115 169 578 339 1156 12 31 106 155 530 310 1059 13 29 98 143 489 286 978 … If manifold pressure matches Table 2 and rate is incorrect, check gas orifices for proper size and restriction. Use the formula below to determine the BTU input to the appliance. Gas meter clocking chart. Determine the scale of the dial on the gas meter to calculate the cubic feet of gas being burned by the furnace per hour: For 1 Cu. It's complicated and that is why most meters used in … The gas company takes all that information and uses it to calculate your gas bill. Wiring and Sequence of Operation. One of the dials should move faster than the rest, grab a stopwatch and measure how long it takes that smallest dial to make a complete circle, then use a gas flow chart to determine the gas burned per hour. If you measure while your house is always at rest, your readings are going to be off unless you do a cumulative meter reading. 35. Pretty much every house has gas going into it. Ft.) x 3,600 ÷ Timed Seconds For example, if the heating value is 1,050 BTU/Cu. For ½ Cu. Order online or call us to speak with one of our experts about all of your metering needs. We’ll use a default of 1,050 BTU per cubic foot of natural gas but be aware this will mean some inaccuracy. Once at steady-state, use a stopwatch to time how long it takes the smallest unit of measure (typically the 1/2 Cubic Foot) GAS METER CLOCKING CHART Refer to the EL195UHE Operation and Installation Instruc- Seconds for One Revolution … Volume of Space ..... 57 6. Voilà! This seems reasonable, if our boiler is rated for 400HP. Verified Manufacturers Accepts Sample Orders Accepts Small Orders Product Videos Sort by. System Electrical Checks and Troubleshooting. Many HVAC professionals find that it’s useful to print out a copy of a meter-clocking chart to laminate and keep in their work trucks. At 0:09 right dial is vertical, again at 1:28, again about at 2:47. You can get a free online metric gas meter reading converter calculator for your website and you don't even have to download the metric gas meter reading converter calculator - you can just copy and paste! Clocking a Gas Meter Firing rate BTU/Hr. Flow Chart Surelight Boards 18M99 & 49M59. Here is a gas flow chart in cubic feet per hour, this is for a 2 cubic foot dial, if your dial size is different, then you’ll need to divide by the appropriate dial size at the bottom of the chart. Ft. No more cross-referencing charts… 761 Clocking Gas Meter results from 187 Manufacturers. If you are measuring on an uncorrected meter at 7" w.c. (414.9 inches absolute) then you have 414.9" divided by 407.9" = 1.017 or 1.7% more than 1 standard cubic foot. Clocking gas meter: Measuring BTU of Natural Gas Fired Heating EquipmentActivate the unit being tested, making certain no other gas fired appliance is operating. Which means if you burn 1 therm an hour, you’ll spend $0.50 an hour or $348 a month. We strongly suggest measuring the meter yourself a few times and keeping track of all the readings so you have a good insight to how much gas you are using. Quality Exporter. You can get an accurate idea of what your gas bill should cost by using the online calculator above or the Gas Meter Clocking App can tell you how many therms you are burning. If there are pilot lights they must be shut off also. Dial: Gas flow CFH = Chart Flow Reading divided by 4. NOTE: Shut unit off and remove manometer as soon as supply line pressure, manifold pressure and combustion sample have been obtained. (844) 263-7582 Dial: Gas Flow CFH = 10X Chart Flow Reading divided by 4 Sometimes if you feel your gas bill is too high or if you think your gas meter is faulty you can get a technician to come out and do a manual read. Checking Firing Rate Determine time in seconds for two revolutions of gas through the meter. Example: A maximum flow rate of 25,000 SCFH and an operating pressure range of 75-100 PSIG would require a 5.5M meter based on a 75 PSIG minimum inlet pressure. Determine if you have a ½ Cu. Clock the amount of time it takes for the smallest dial to make one complete revolution. 35. Ft., 2 Cu. We designed Meter Buddy for people in the natural gas industry who wanted an easy to use app instead of being reliant on flow charts for measuring the current usage of a gas meter. It can vary slightly, but 1,000 BTU/cu. Based upon the assumption that one cubic foot of natural gas has 1,000 BTU’s (Check with your local utility for actual BTU content), the calculated input is 62,000 BTU’s per hour. (Two revolutions assures a more accurate time.) 2 . The unit being tested takes 29 seconds for the ½ cubic foot dial to make one complete revolution. Cubic Feet per Hour (CFH) = (3600 x Dial Size) / Time (seconds). Flue and Chimney. If you are measuring gas on an uncorrected meter at 10 psig (really 24.73 psia) then you have 24.73 divided by 14.73 or 1.679 or 67.9% more than 1 standard cubic foot. 35. If you want, you can avoid all the charting and just use this online gas meter calculator below. See the gas flow chart or use our online calculator below.
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