Ultraheat / Ultracold T550 (UC50…)
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Calculator T550 Ultraheat
®
(UC50
…)
Calculator T550 Ultracold
®
(UC50
…)
Operating Instructions
UC 309-101d
Issue: 29.10.2012
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
®
(UC50…) calculator is de-
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
A (EN 1434)
Mechanical class
M1 *)
Electromagnetical class
E1 *)
*) according 2004/22/EG directive
Ambient humidity
< 93 % r. h. at 25°C
without condensation
Storage temperature
- 20 to 60°C
Max. Height
2000 m above MSL
Ambient temperature
5 to 55°C
Housing degree of prot. IP 54 per EN 60529
Safety class
line 110 / 230 V AC
II per EN 61558
line 24 V AC/DC
III per EN 61558
Response threshold f.
T 0.2 K
Temperat. diff.
T
3 K to 120 K
Temperat.meas. range
0...180°C
Sensors Type
Pt500 or Pt100
per EN 60751
Temp. sensors length
max. 10m
Battery
3,6V DC Lithium
Power supply
230/110V AC 50/60Hz
24V AC/DC 50/60Hz
Power input
< 0,8W
Pulse input
IB/IC per EN1434
Pulse length
min. 10ms
Pulse frequency
max 50Hz
Pulse wire length max. 20m (recommended)
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)
Service loop 1
Service loop 2
…
…
User loop 0
User loop
(„LOOP 0“)
Head of the loop
Error message with error code numer
1
)
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
3280
009
10
1
d
