PolluStat^® Thermal Energy Meter

High accuracy ultrasonic measurement
Flexible detachable calculator
Modular comms wMbus, Mbus, LoraWAN, Modbus
Trends, alarms, and remote monitoring
Convenient on-site unit replacement

Compact thermal energy meter for cooling/heating

Sensus PolluStat^® ultrasonic compact meter measures energy consumption in heating or cooling circuits. Thanks to its high-precision flow sensor, the application range stretches from district heating stations to consumption billing for individual apartments.

PolluStat thermal energy meter is equipped with a large comprehensive LCD with programmable screens.

Features

With a detachable calculator unit for installation sites with limited space with approx. 0.85 m connection cable
Storage of flow rate, power and temperature, as well as the respective maximum values of the last 15 months via radio, additional 15 half-monthly values via the display
Modular on-site equipable solution for different communication interfaces offers more flexibility and lower storage costs
Standard installation in the “lower temperature pipe” (aka outlet) can be changed to “higher temperature pipe” (aka inlet pipe) installation if necessary on-site, as long as the energy consumption measurement total is below <10kWh
Separate 230V or 24V mains power supply module available
MID approval in class 2 per EN 1434 for arbitrary installation (also overhead)
Temperature range of the flow sensor:
- Heating meter 15 – 90 °C (Also as variant 15 – 130 °C)
- Hybrid meter 15 – 90 °C (Also as variant 15 – 120 °C)
- Cooling meter 5 – 50 °C
Optical data interface (M-Bus protocol) as standard
Tariff registry: 2 individually customizable registers
Freely selectable annual cut-off date

Documentation and Tools

Specifications

Optional communications modules: Enable remote electronic meter reading and building automation connections; modules can be factory-fitted or retrofitted at any time.
Wireless M-Bus (radio): Walk-by or fixed-network readout (OMS compliant) on 868 MHz, with selectable modes S1/T1/C1 and optional OMS encryption (modes 5/7).
M-Bus: Wired 2-wire readout with reverse-polarity protection (EN13757), suitable for building automation or existing M-Bus networks; unlimited readouts (typical updates 120 s, or 2 s with external power).
Remote meter pulse: Volt-free pulse output for connecting to external readers or monitoring devices.
Wireless M-Bus + 3 external meter inputs: Adds up to three pulse inputs for other meters (e.g., electricity, cold/hot water) using reed contact or open collector; pulse values configurable via optical head/software.
M-Bus + 3 external meter inputs: Wired M-Bus module with up to three pulse inputs for external meters (reed contact or open collector); pulse values configurable via optical head/software.