OHD3-80M

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Mechanical thermostats are temperature sensors that are used to detect changes in temperature of liquids or gasses. One such type of mechanical thermostat is the OHD3-80M. This device is commonly used for home and commercial applications in refrigeration, air conditioning, and other heating and cooling systems. The OHD3-80M is an adjustable switching device that is designed to detect changes in temperature and trigger an electronic switch to open and close.

The OHD3-80M consists of a thermally sensitive metal bulb which is filled with a gas, usually a combination of a nitrogen/argon mixture. This mixture has a low boiling point and is pressure sensitive. As the temperature surrounding the bulb increased, the pressure inside the bulb increases, which in turn causes the tilt of a bi-metallic armature. This movement of the armature acts as a relay and opens or closes electronic switches connected to it. These electronic switches are used to control the temperature of the system.

The OHD3-80M is used mainly in refrigeration systems, where it can be used to detect temperature drops or rises in the cold rooms. The device can also be used in heating systems for temperature control and as a safety valve. In systems where there is a risk of over-heating, the OHD3-80M can act as a safety valve, cutting the power to the heating system.

The OHD3-80M also has adjustable sensitivities. This means that the device can be set to detect different levels of temperature. This is done by adjusting a spring inside the device, which changes the amount of pressure applied to the tilt of the armature. This allows the user to better control the temperature of the system by fine-tuning the device.

The OHD3-80M is available in different sizes and can withstand high temperatures and pressure variations. It is also an inexpensive device and is easy to install. The OHD3-80M is used in a variety of applications, from controlling temperatures of refrigerated containers to operating water heaters.

In conclusion, the OHD3-80M is a mechanical thermostat that is used to detect changes in temperature and trigger an electronic switch to open and close. It is used mainly in refrigeration systems and as a safety valve in heating systems, where it can be used to cut power to the system in cases of overheating. It is an adjustable device with adjustable sensitivities and is available in different sizes. It is an inexpensive device and is easy to install.

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