Maddalena MICROCLIMA EVO

MicroClima EVO is a compact instrument for measuring thermal energy provided to users using water as the thermal energy conveyance medium. Based on the water flow rate (the volume), and the difference between the inlet and the outlet temperatures, the MicroClima EVO heat meter is able to calculate, display and transmit the heat energy actually used. It is available in gauges from DN 15 to DN 20.

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Description Technical Data Features

Maddalena MICROCLIMA EVO

COMPACT THERMAL ENERGY METER – SINGLE JET – MECHANICAL DESIGN

Comprised of: detachable calculator, single jet water meter, Pt 1000 temperature sensors
For in-line installation
Nominal flow rate qp: 0.6 m³/h, 1.5 m³/h, 2.5 m³/h
Inlet or outlet and unit of measurement can be set on site
Communication interfaces: wireless M-Bus, wireless M-Bus + 3 pulse inputs, M-Bus, M-Bus + 3 pulse inputs, 2 pulse outputs, LoRaWAN + 3 pulse inputs, Modbus
Replaceable battery, service life 10 years
Allows external power supply
MID approved
Detection of backflow
Dynamic temperature measuring cycle: 2/60 s
Detachable calculator, 50 cm cable (optional)

Parameter	Specification
Measuring method	Bidirectional inductive scanning system
Nominal flow rate qp (m³/h)	0.6 / 1.5 / 2.5
Horizontal starting flow rate (l/h)	3.5 / 7.0 / 10.0
Vertical starting flow rate (l/h)	4.0 / 7.0 / 10.0
Minimum flow rate qi (l/h)	24 / 60 / 100
Maximum flow rate qs (m³/h)	1.2 / 3.0 / 5.0
Pressure drop Δp at qp (bar)	0.155 / 0.210 / 0.165
Pressure drop Δp at qs (bar)	0.660 / 0.840 / 0.675
Nominal diameter	DN15 / DN15 / DN20
Thread	G3/4B / G3/4B / G1B
Length (mm)	110 / 110 / 130
Dynamic range qi/qp	1:25
Accuracy class (MID)	Class 3
Nominal pressure PN (bar)	16
Temperature range of liquid – heat	15–90°C
Temperature range of liquid – cooling (qp 1.5 and qp 2.5)	5–50°C
Installation point	Inlet or outlet Can be set if the energy value is ≤ 10 kWh
Mounting position	Cooling energy meters: any position Heat meters: horizontal/vertical
Protection class	IP65
Liquid	Water Optional, not certified: water with a propylene glycol or ethylene glycol concentration of 20%, 30%, 40% or 50%. The type and concentration of glycol can be set if the energy value is ≤ 10 kWh.

Temperature Sensors (2-wire Technique)

Parameter	Specification
Sensor Type	Platinum precision resistor Pt 1000
Diameter (mm)	5; 5.2; 6; AGFW 27.5; 38; needle sensor 3.5 × 75
Cable Length (m)	1.5; 3; 6
Installation Point	Asymmetrical, symmetrical