Table Of Contents - Landis+Gyr ULTRACOLD T550 Technical Description

Contents
Contents
1 General notes ____________________________________________________________ 5
Other available documentations ______________________________________________ 5
2 Safety information ________________________________________________________ 6
3 Technical data ___________________________________________________________ 8
Small meters (qp 0.6 - 2.5 m³/h) _____________________________________________ 10
Large meters with thread ___________________________________________________ 11
Large meters with flange ___________________________________________________ 12
Large meter qp 150 _______________________________________________________ 12
4 Installation _____________________________________________________________ 13
Installation Notes _________________________________________________________ 13
Examples of installation ____________________________________________________ 13
Installation notes for sensor adapter set (temperature sensor directly immersed) _______ 14
4.1 Installation for cooling metering ___________________________________________ 15
4.2 Installation of qp 150 ___________________________________________________ 15
5 Dimension of electronic unit _______________________________________________ 16
6 Operating elements ______________________________________________________ 17
6.1 Displaying current meter status ___________________________________________ 18
Display values (LOOPs) ___________________________________________________ 18
User loop „LOOP 0" _______________________________________________________ 18
Service loop 1 „LOOP 1" ___________________________________________________ 19
Service loop 2 „LOOP 2" ___________________________________________________ 19
Service loop 3 („LOOP 3") __________________________________________________ 20
Service loop 4 („LOOP 4") __________________________________________________ 21
Previous year's values __________________________________________________ 22
6.2
6.3 Monthly values ________________________________________________________ 22
7 Resolution of the display __________________________________________________ 23
8 Power supply ___________________________________________________________ 24
Automatic power supply detection ____________________________________________ 24
Power supply requirements _________________________________________________ 24
Power supply modules ____________________________________________________ 25
9 Communication _________________________________________________________ 26
Electronic unit interfaces ___________________________________________________ 26
Permissible combinations of modules _________________________________________ 27
Terminals _______________________________________________________________ 28
9.1 Pulse module _________________________________________________________ 28
9.2 CL module ___________________________________________________________ 29
9.3 M-Bus module G4 _____________________________________________________ 29
9.4 M-Bus module MI with 2 pulse inputs _______________________________________ 30
9.5 Analog module ________________________________________________________ 31
9.6 Radio module 868 MHz (Wireless M-Bus) ___________________________________ 31
9.7 Radio module 868 MHz LoRaWAN (CMi4110) _______________________________ 32
9.8 GPRS module ________________________________________________________ 32
10 Tariff control (optional) ___________________________________________________ 34
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