Gas thermal flowmeter

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1. Can the installation head of a thermal gas mass flowmeter rotate?

The head of a thermal gas mass flowmeter can usually rotate, which is a standard design function. 1. The design of the meter head rotation function is mostly limited, such as the meter head of a digital gas mass flowmeter that supports rotation from 300 ° to 360 °, in order to adapt to different pipeline installation directions and on-site reading requirements. Rotating structures usually use universal joints or flange connections with locking functions, which can fix the meter head at any angle. 2. Specific rotation ability • Rotation range: Mainstream brands (such as Endress+Hauser, Siemens, Emerson) can rotate the meter head by more than 300 ° • Locking method: using anti slip gear disc structure or locking nut design to avoid vibration induced displacement • Cable protection: internal wiring adopts redundant design to prevent cable twisting during rotation. 3 Installation precautions: When rotating the meter head, it is necessary to: • Loosen the fixed bolts/nuts first, adjust them to the target angle, and then re lock them • Ensure that the sealing ring is intact to prevent water vapor from entering (the protection level usually needs to maintain IP67) • Avoid exceeding the calibrated rotation limit (usually with physical limit devices). 4 Some explosion-proof (Ex d/IIC T6) or high-voltage products with special model differences may limit the rotation angle, please refer to the product manual for details. For example, some models restrict 180 ° rotation to avoid explosion-proof joint surface failure. It is recommended to refer to the installation manual of the corresponding model before operation, as the specific rotation mechanism may v

2. Unit of thermal gas flowmeter

The unit of thermal gas flowmeter mainly depends on the measurement principle and display settings, usually in volume flow units or mass flow units.

2. Mass flow unit • Kilogram per hour (kg/h): A unit for directly measuring gas mass flow rate, with high accuracy and not affected by temperature and pressure. • Ton/hour (t/h): Used for high flow gas measurement, such as power plant flue gas monitoring

3. Other commonly used units • Foot ³/minute (CFM): British unit, commonly used in ventilation systems in North America. • Gallons per minute (GPM): mainly used for liquid measurement, but some gas flow meters can also switch display

4. Unit conversion and setting - Contemporary thermal flow meters usually support multi unit switching and need to be set in the instrument menu. -If the display unit is SCFM (standard cubic feet per minute) or SLPM (standard liters per minute), it means that it has been automatically compensated to the standard state. -Attention: The volumetric flow rate in non-standard conditions can only be converted to accurate values by compensating with temperature/pressure sensors

5. Selection and usage precautions - For industrial sites, Nm ³/h or kg/h should be preferred to

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