WMZ Plus Calorimeter

Universal calorimeter module for solar, heating and cooling systems. Graphic display for indication of flow and return temperature, heat quantity, flow rate and sensor faults (balance values are also stored in case of a power failure). Suited for systems with water or water-glycol mixtures (water, propylene glycol, ethylene glycol and Tyfocor® LS adjustable).
Universal calorimeter module


Single or combined measurement of heat and cooling energy
Two independent calorimeters
Commissioning menu for easy configuration
Conversion into selectable alternative units (€, kg CO2, m³ gas, etc.)

Inputs: : 4 Pt1000 temperature sensors, 2 impulse inputs (adjustable), 2 4-20 mA inputs (convertible to 0-10 V), 2 analogue Grundfos Direct Sensors™ (VFS)
Outputs: 2 S0 outputs
Power supply: 100 – 240 V~ (50 – 60 Hz)
Standby: < 1 W
Data interface: RESOL VBus®, MicroSD card slot
Indication/Display: graphic display, operating control LED (Lightwheel®)
Operation: 2 push buttons and 1 adjustment dial (Lightwheel®)
Ingress protection: IP 20 / DIN EN 60529
Ambient temperature: 0 … 40 °C
Dimensions: 110 x 166 x 47 mm
Adjustment values:
– Volumetric content of glycol: 0 … 70 % (1-%-steps)
– Impulse rate of flow rate: 0 … 99 l/Imp (1-l//Imp steps) for RESOL V40 flowmeter
Temperature measurement: with RESOL Pt1000 sensors and Grundfos Direct Sensors™ (VFS)
Measuring precision: ± 0,3 K
Measuring range: -40 … +120 °C

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