Landis+Gyr Ultraheat T550 Operating Instructions

Calculator T550 Ultraheat
Calculator T550 Ultracold
Operating Instructions
These Operating Instructions must be handed to the final user on start-up!
Note: In the following text, the term calculator covers
the heat meter calculator as well as the cold meter
calculator and the combined heat/cold meter calcula-
tor, if not mentioned otherwise.
General information
®
The T550 Ultraheat
signed for heating and cooling applications. The
calculator forms the volumes from the pulses of the
flow sensor. The flow and return temperatures are
sensed using platinum resistors.
The volume of water and the temperature difference
between the flow and return are then calculated and
the product is summated.
The result is that the quantity of thermal energy con-
sumed is displayed in the units kWh / MWh or MJ /
GJ.
The mounting place and the pulse value

of flow sensor with pulse output must corre-
spond with the in the calculator set values
(see LOOP 2).
Technical data
Environment class
Mechanical class
Electromagnetical class
*) according 2004/22/EG directive
Ambient humidity
Storage temperature
Max. Height
Ambient temperature
Housing degree of prot. IP 54 per EN 60529
Safety class
line 110 / 230 V AC
line 24 V AC/DC
Response threshold f. T 0.2 K
Temperat. diff. T
Temperat.meas. range
Sensors Type
Temp. sensors length
Battery
Power supply
Power input
Pulse input
Pulse length
Pulse frequency
Pulse wire length max. 20m (recommended)
Ultraheat / Ultracold T550 (UC50...)
®
®
UC 309-101d
(UC50...) calculator is de-
A (EN 1434)
M1 *)
E1 *)
< 93 % r. h. at 25°C
without condensation
- 20 to 60°C
2000 m above MSL
5 to 55°C
II per EN 61558
III per EN 61558
3 K to 120 K
0...180°C
Pt500 or Pt100
per EN 60751
max. 10m
3,6V DC Lithium
230/110V AC 50/60Hz
24V AC/DC 50/60Hz
< 0,8W
IB/IC per EN1434
min. 10ms
max 50Hz
Subject to change without prior notice
(UC50...)
(UC50...)
Operating elements
Displays
The displays of the meter are arranged on several
levels (LOOPs).
Button 1 advances the display to the next loop. After
the last loop, the user loop (LOOP 0) appears again.
Button 2 displays the data of the selected loop. With-
in a loop, the button 1 is used to advance to the next
line of the display. After the last line of the display,
the first display line appears again.
The digits after the decimal point of displayed values
are indicated by a surrounding border.
Calibrated values can be recognized by the star
symbol shown in addition to the value.
Depending on how the unit is parameterized,
the number of items displayed and the data

shown may differ from this description. Cer-
tain button functions may also be disabled.
Service loop (selection)
...
User loop („LOOP 0")
Issue: 29.10.2012
Service loop 1
Service loop 2
...
User loop 0
Head of the loop
Error message with error code numer
Accumulated quantity of energy with tariff status
)
Tariff register 1,2,3 2
Accumulated volume
)
Volume pulse input 1 3
at 2 s interval with current volume
)
Volume pulse input 2 3
at 2 s interval with current volume
Segment test
button 1
button 2
LCD display
)
1
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