Calorimeters & Sensors
Measure accurately with RESOL and optional Grundfos Direct Sensors™.
Solar Hot Water sensors at operating temperatures (68 ... 176 °F) must measure as accurately as possible in order to ensure that any measurement error of sensors and controller does not exceed 3.6 or 5.4 °Ra.
How RESOL Sensors Work: The sensors contain a material that changes its electrical resistance in proportion to the temperature change. The controller measures the resistance and calculates the temperature of the sensor element.
For Example: Pt1000 is a platinum (Pt) sensor with a resistance of 1000 Ω at 32 °F.
How to Choose the right Sensor: Three different sensor types are available: immersion (well) sensors, clip-on and bolt-on sensors. For each sensor product, options are available for diameter (Dim, L1, L2), Cable Material (Silicone, PVC, Pur) and Temperature Range.
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RESOL WMZ Universal Calorimeter
Out of stock
A universal calorimeter module for solar and heating systems. Includes graphic display of flow and return temperatures, heat quantity, output, flow rate and sensor faults. Compatible with RESOL DeltaSol ES, E, M, MX, and BX Heating Controllers.
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WMZ-G1 Calorimeter (with Grundfos Direct Sensors)
The WMZ-G1 is a measurement and display unit for solar thermal systems and conventional heating systems.
It is possible to connect up to two Grundfos Direct Sensors™, which measure the temperature as well as one additional value – depending on the type: flow rate, relative or differential pressure.
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Outdoor Temperature Sensor
The FAP13 Outdoor Temperature Sensor is used for measuring the outdoor temperature with a platinum measuring element.
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Indoor Temperature Sensor
RESOL FRP11 Indoor Temperature Sensor. Made for installation on planar surfaces. Version Pt1000
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RESOL SP10 Overvoltage Protection
Overvoltage protection device placed in housing with outstanding design, suitable for mounting outdoors. We generally recommend installing the overvoltage protection in order to avoid overvoltage damage at collector sensors, e.g. caused by local lightning storms.
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RESOL Temperature Sensors
Learn MoreSolar Hot Water Controller Sensors made for installation into Sensor Wells. Available in the dimension, cable material and temperature range of your choice.
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RESOL Cylindrical Clip-On Sensors
Solar Hot Water Controller Sensors for surface mounting on tubes, including pipe clamp. Pt1000 version. Available in the dimension, cable material and temperature range of your choice.
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RESOL Bolt-On Sensors
Solar Hot Water Controller Sensors for installation on planar surfaces. Pt1000 version. Available in the dimension, cable material and temperature range of your choice.
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Sensor Wells (NPT Thread)
For diameters and sizing, please refer to the diagram image(s) for measurements.
Note: In case of domestic water installations only use stainless steel immersion sleeves.
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RESOL CS10 Solar Cell
Out of stock
The RESOL CS10 Solar Cell is used for measuring momentary irradiation intensity and allows additional plausibility control for the system status. The connection line can be extended up to 100 m.
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