Landis+Gyr ULTRACOLD T550 Technical Description page 4

Contents
Threshold value tariff (tariffs T2, T3, T4, T5, T6) ________________________________ 34
Supplied quantity of energy (tariff T7) ________________________________________ 34
Returned quantity of energy (tariff T8) ________________________________________ 34
Heating/Cooling meter (tariff T9) ____________________________________________ 35
Tariff control via timer switch (tariff T10) ______________________________________ 35
Tariff control via M-Bus (tariff T11) __________________________________________ 35
Surcharge quantity tariff by means of return temperature (tariff T12) ________________ 35
Display of the tariff situation on the LCD ______________________________________ 35
11 Error messages __________________________________________________________ 37
12 Log functions ___________________________________________________________ 38
13 Data logger (optional) _____________________________________________________ 40
14 Additional options _______________________________________________________ 41
15 Order codes (type number key) _____________________________________________ 42
16 Additional ordering information on radio module 868 MHz (wireless M-Bus EN13757-4,
OMS v2.0)_______________________________________________________________ 45
17 Additional ordering information on radio module 868 MHz (wireless M-Bus EN13757-4,
OMS v4.1.2) _____________________________________________________________ 46
18 Pressure loss ___________________________________________________________ 47
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