Rosemount 566 Multiple Spot Temperature Sensor
Rosemount 566 Multiple Spot Temperature Sensor is easily installed on the tank nozzle, and is then connected either directly to the 2240S multi-input temperature transmitter or via cable. The 566 sensor is mounted with a flange or a thread at the top of the tank. The spot elements are placed in a flexible gas tight protection tube, made from convoluted stainless steel, for easier handling during installation. All spot elements are attached to a wire, which runs from the top to the bottom of the sensor. An anchor weight can be hung at the bottom, or the tube can be fixed to the bottom, to keep the sensor vertical, and avoid floating when the tank is filled. Rosemount 566 is designed for atmospheric tanks up to 0.5 Bar (7.3 psi). For pressurized tanks it must be installed in a closed thermowell, enabling service or inspection while the tank is in operation.
The spot elements are encapsulated in a stainless steel tube, filled with Argon gas to prevent condensation of water inside the sensor at low temperatures. If the sensor is used in pressurized tanks, it must be protected by a thermowell with ambient pressure inside. The recommended minimum inner diameter of the thermowell is 49.8 mm (1.96 in.).