OHD3-120M

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The OHD3-120M is a temperature-sensing device used in a variety of applications where proper temperature control is necessary. It is a mechanical thermostat, which means it works by physically opening or closing a circuit depending on the temperature value. This type of thermostat is known to be reliable, easy to install, and inexpensive compared to other temperature sensing solutions.

The OHD3-120M is suitable for use in a variety of applications, including industrial processes, home and commercial heating and cooling systems, refrigeration systems, and environmental monitoring. The device can be used to maintain the temperature within a given range by switching on and off a variety of control loads, such as fans, motors, and relays. It can also be used to monitor temperatures and provide alarms when the temperature exceeds a certain threshold.

The OHD3-120M works by sensing the temperature using a temperature sensing element such as a thermocouple, thermistor or bimetal thermometer. This element is connected to a mechanical arm, which is used to open or close the circuit depending on the temperature value. When the temperature reaches the setpoint, the mechanical arm moves and the circuit is closed, carrying current through the control load. When the temperature drops below the setpoint, the mechanical arm moves back, opening the circuit and stopping the current.

In terms of installation, the OHD3-120M is relatively simple. It usually requires two wires to be connected – power in and power out – allowing the thermostat to be powered from an external source. The device can also be mounted to a wall or other flat surface for easy access. Additionally, the thermostat is typically equipped with a calibration screw that can be used to adjust the setpoint.

The OHD3-120M is a reliable and cost-effective solution for applications that require precise temperature control. Its mechanical operation ensures it is not dependent on any external power source, and its robust construction makes it suitable for long-term use in challenging environments. Additionally, its simple installation and calibration make it easy to install and use, making it a popular choice for many different applications.

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