The ultrasonic heating and cooling energy meter SKU-03 is designed to measure and record heating and cooling energy consumption separately. It can be used for commercial metering of energy usage in residential and commercial buildings. The meter uses ultrasonic flow measurement and has features such as separate registers for heating and cooling, user-defined display parameters, pulse inputs/outputs, M-Bus and wireless communication, tariff functions, and data logging of hourly, daily and monthly consumption values. It has an accuracy of class 2 and measures energy in units such as kWh, MWh and GJ.

1. Ultrasonic heating and cooling
energy meter SKU-03

2. 2 3
Application
Ultrasonic heating and cooling energy meter SKU-03 is designed to
measure heating and cooling energy and to record data in two separate
registers.
It can be used for commercial metering of energy consumption for local
or district heating systems: in dwelling houses, office buildings, energy
plants and similar objects.
Main features and advantages
• Ultrasonic principle used for flow measurement.
• Heating and cooling energy accumulated in separate registers.
• List of displayed parameters can be set by the user.
• Two universal pulse inputs / outputs available – can be used to connect
additional pulse sources (for example – water meters), or as pulse
outputs (for energy, volume values etc.).
• M-Bus, CL interface modules or wireless radio readout modules
available.
• Tariff function available.
• Programmable monthly and yearly set days.
• Hourly, daily and monthly consumption values are stored in the internal
data logger.
• Daily and monthly extreme (min/max) values with time stamps are
recorded.
• Flow direction indication.
• The calculator can be mounted on the flow sensor or in other convenient
location (on the rail, inside the hermetic enclosure or on the wall).
Technical specification
Accuracy class 2 (according to EN1434)
Energy measurement units kWh, MWh, GJ, Gcal
Power supply internal battery (lifetime not less than 11 years)
Flow measurement
Flow measurement limits, mounting length and connection type:
qp
, m3
/h qs
, m3
/h qi
, m3
/h Mounting length, mm Connection type
0,6 1,2 0,006 110 G3/4“
1,0 2,0 0,01 110 G3/4“
1,5 3,0 0,006 110 G3/4“
1,5 3,0 0,015 110 G3/4“
2,5 5,0 0,01 130 G1“
2,5 5,0 0,025 130 G1“
3,5 7,0 0,035 260 G1 1/4“
6,0 12,0 0,024 260 G1 1/4“
6,0 12,0 0,06 260 G1 1/4“
10,0 20,0 0,04 300 G2“
10,0 20,0 0,100 300 G2“
15,0 30,0 0,06 270 DN50
15,0 30,0 0,15 270 DN50
Fluid temperature range
5 °C....130 °C, for qp
≤ 2,5 m3
/h
10 °C....130 °C, for qp
≥ 3,5 m3
/h
Maximum permissible pressure 16 bar.
Temperature measurement
Temperature measurement limits 0 °C....180 °C.
Temperature difference measurement limits 2…150 K or 3…150 K.
Type of temperature sensors Pt500 DS (qp
≤ 6 m3
/h) or PL
Connection scheme – two-wire, cable length up to 5 m
Internal data logger capacity
up to 960 hours for hourly records
up to 1116 days for daily records
up to 36 months for monthly records
Outline dimensions of the calculator 117 x 44 x 90 mm
Protection class IP65 (IP67 on request)
HEATING AND COOLING ENERGY
METER SKU-03

3. AB „AXIS INDUSTRIES“
Kulautuvos str. 45a
LT-47190 Kaunas, LITHUANIA
Tel. (+370 37) 36 02 34
Fax (+370 37) 36 03 58
info@axis.lt
www.axis.lt