The Contrec 212 BTU Meter is a reliable and versatile device that can measure the energy consumed by both heating and cooling systems with high accuracy. The device can interface with a wide range of flowmeters, including positive displacement and inferential water meters, magnetic flowmeters with pulse outputs, turbine flowmeters, and paddlewheel flowmeters. The optional temperature probes and power supply make the Contrec 212 BTU Meter even more flexible and adaptable to various applications.
The Contrec 212 BTU Meter is designed to measure the temperature in the supply and return flow lines and uses this information to calculate the enthalpy and density of water. By measuring the volume of water flowing in the system, the Contrec 212 BTU Meter can determine the energy used and calculate the power. The device is ideal for typical water heating or cooling systems that operate at pressures not exceeding 16 bars.
The Contrec 212 BTU Meter comes with two PT100 resistance temperature devices (RTDs) that measure the temperature in both the supply and return lines. For maximum accuracy, the four-wire RTDs should be a matched pair, Class A to IEC 751 standard. The Contrec 212 BTU Meter complies with OIML R75 and EN1434 standards and includes Meter-bus and RS485 (Modbus RTU) communication links.
The Contrec 212 BTU Meter includes separate peak and off-peak registers, making it possible to compute charge and discharge energy in systems where heat may be stored in underground tanks. The device also provides pulse output with programmable pulse width from 10 to 500ms. With its highly accurate built-in real-time clock (2ppm type), the Contrec 212 BTU Meter can keep track of logging, peak-on/peak-off points, and more. Even after a power failure, the real-time clock can keep running for two days with ±1 minute accuracy.
In summary, the Contrec 212 BTU Meter is a versatile and reliable device that can measure the energy consumed in heating and cooling systems with high accuracy. With its flexible interface and various optional features, the Contrec 212 BTU Meter is an excellent choice for various applications.
