Title: +038=370.101-OE002T_02-Multical 801 Energimåler Kamstrup - Teknisk beskrivelse.pdf
Example: The below graph illustrates the difference between Mass V1 and Mass V2 during 60 days before the leakage of an under-floor heating pipe caused a leak alarm. During the first 43 days, there is fluctuation of approx. ± 1 kg/h, which is the normal fluctuation of systems without leaks.16 1614 1412 12r r u u o o h h / / s s g g k k n n10 108 8i i e e g g a a k k a a e e L L6 64 42 20 0400 400410 410420 420430 430440 440450 450460 4602 -2Number of days Number of days6.13.2 District heating burstEvery 30 seconds the current flow of the inlet pipe is compared to that of the outlet pipe. If the difference exceeds 20 % of the nominal flow at four successive measurements (120 s), info = 00512 is set and a ”burst alarm” is sent via remote communication.6.13.3 Cold water systems