MicroClima S3C is the separate electronic unit for the heat meter.
In addition to its great adaptability, it offers excellent performance in the measurement of both heating and cooling units. The calculation unit must be connected to a pair of temperature probes and a MI-004 certified flow meter.
• Compact design
• Replaceable battery, may be connected to a 3 V power pack
• Point of installation (inlet/outlet) may be set on site
• LCD display
• Selectable installation point (flow/return)
• Battery life 10 years
• Can also use an external power supply
• Heating/cooling versions also available
• Retrofit 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*
* can also be installed later
| Parameter | Specification |
|---|---|
| Temperature range of medium – heating | 0 °C to +150 °C |
| Temperature range of medium – cooling | 0 °C to +50 °C |
| Operating ambient temperature | +5 °C to +55 °C at 95% relative humidity |
| Transport temperature | -25 °C to +70 °C (max. 168 hours) |
| Storage temperature | -25 °C to +55 °C |
| Temperature difference range ΔΘ (heating) | 3 K to 100 K |
| Temperature difference range ΔΘ (cooling) | -3 K to -50 K |
| Minimum temperature difference ΔΘ (heating) | > 0.05 K |
| Minimum temperature difference ΔΘ (cooling) | < -0.05 K |
| Minimum temperature difference ΔΘ HC (heating/cooling) | > 0.5 K / < -0.5 K |
| Temperature resolution | 0.01 °C |
| Energy measuring cycle | Standard operation: 60 s (10-year battery life) Optional: 30 s (6 + 1-year battery life) With power pack: 2 s |
| Pulse options (optional) | 1 / 2.5 / 10 / 25 / 100 / 250 / 1000 / 2500 litres per pulse |
| Display | LCD – 8 digits + special characters |
| Decimals | Up to 3 decimal places |
| Units of measurement | MWh, kW, m³, m³/h (kWh, GJ, l, MMBTU, Gcal). The energy unit can be changed while the energy value is ≤ 10 kWh. |
| Interfaces | Standard: Optical interface (M-Bus protocol)
Optional: Wireless M-Bus; Wireless M-Bus + 3 pulse inputs; M-Bus; M-Bus + 3 pulse inputs; 2 pulse outputs; LoRaWAN + 3 pulse inputs; Modbus. |
| Power supply | Replaceable 3 V lithium battery; all models are prepared for a 3 V power pack (input voltage 230 V / 24 V) |
| Estimated lifetime | 10 years (standard); 6 + 1 years (optional). See “Factors Influencing Battery Lifetime” in Maddalena technical documentation. |
| Data storage | Nonvolatile memory |
| Reading dates | Selectable yearly reading date; 15 monthly and semi-monthly values via display or Wireless M-Bus (compact mode); 24 monthly and semi-monthly values via optical interface or M-Bus. |
| Tariff registers | 2 individually configurable registers for energy or time accumulation |
| Storage of maximum values | Power, temperatures (inlet, outlet, ΔΘ), and related maximum values for the last 15 months |
| Protection class | IP54 |
| CE marking | Yes |
| Mechanical class | M2 |
| Electromagnetic class | E2 |
| Pulse input interface | CMOS microcontroller, Class IB, compliant with EN 1434-2:2015 (D) |
| Medium | Standard: Water Optional (not certified*): Water with 20%, 30%, 40%, or 50% propylene glycol or ethylene glycol. Glycol type and concentration can be configured while the energy value is ≤ 10 kWh. |
| Weight | 0.350 kg |
| Dimensions (H × L × D) | 150 × 130 × 35 mm |
| Water Meter | |
|---|---|
| Parameter | Specification |
| Pulse output device class | EN 1434-2:2015 compliant: OA (reed switch contact); OC (open collector) |
| Maximum input frequency | 10 Hz |
| Pulse length | Minimum 25 ms |
| Pulse pause | Minimum 50 ms |
| Temperature Sensors | |
|---|---|
| Parameter | Specification |
| Sensor type | Platinum precision resistor Pt 500 |
| Cable length (unshielded) | Up to 10 m for two-wire cables (standard: 3 m; 10 m on request) |
| Mounting | Direct or in pocket |
