Benefits and Features
Redesignefdor optimal performance on bifacial PV module
Easy installation with maximum sensor-to-module bonding strength and smaller profile
NiST-traceable, serialized calibration certificate supplied with every sensor
Meets or exceeds IEC 61724 Class A performance specifications
Precision Pt-1000 Class A sensing element
Compliant with [EC 60751, DIN EN 60751 (according to IEC 751)
IP68 rating, making the sensor suitable for use on floating PV arrays
Slim design to minimize sensor impact on bifaciality (<2% of full-size cell area)
Thermal conductance greater than 600 W/(m²*K)
Maximum sensor-to-module bonding
High temperature rating to 150°C
Two-wire and four-wire configuration to satisfy data logger channel count and accuracy—at any cable length
Quick sensor head connectiofnor easier installation and replacement

Technical Description
The CS241 provides PV stakeholders with the most accurate back-of-module temperature, even at long cable lengths, for use in power assessment and soiling of solar PV modules. Back-of-module temperature is critical for the evaluation of effective irradiance, soiling, and power conversion, making the sensor that can collect this data a vital part of any PV performance monitoring system.
The C5241 consists of a Pt-1000 Class A platinum resistance thermometer (PRT) encased in a specially designed, slimprofile, low-mass aluminum disk. The slim design minimizes sensor impact on bifaciality with less than two percent area coverage on a full-sized cell. The disk shields the PRT from rapid temperature fluctuations while protecting the fragile PRT element during installation. It minimizes heat transfer, which eliminates surface cooling and results in the highest efficiency in measuring true temperature of the solar module. The disk adhesive has excellent thermal properties including a thermal conductance greater than 600 W/(m²*K), and it is extremely strong. This eliminates the need for hightemperature epoxy or tape for maximum sensor-to-module bonding, making the installation much easier.