Xi'an Huance Automation Technology Co., Ltd.
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120Nm/S 4Mpa Thermal Gas Mass Flow Meter
Product Description
Thermal gas mass flow meter is an instrument that uses the principle of thermal diffusion to measure gas flow. The sensor consists of two reference thermal resistance (RTD) components. One is the speed sensor RH, and the other is the temperature sensor RMG that measures the temperature change of the gas. When the two RTDs are placed in the measured gas, the sensor RH is heated, and the other sensor RMG is used to sense the temperature of the measured gas. As the gas flow rate increases, the gas flow takes away more heat, and the temperature of the sensor RH decreases.
Features
Convenient installation, simple maintenance, two-way detection, anti-vibration
Up to 24 points of flow measurement
Correction of output analog multi-point non-linear curve correction
Wide range ratio 100:1
Simultaneous detection of flow and temperature, switch display
Large diameter and small flow measurement, can be used for leak detection
Adopt proprietary technology "double balance structure" package sensor
Proprietary high humidity and high temperature algorithm, medium temperature can reach 500℃
Direct mass flow detection without temperature and pressure compensation.
Technical Parameters
| Product name | Thermal gas mass flow meter |
| Measuring range | 0.08~ 120Nm/s |
| Operating temperature | Medium temperature-10~350° Working environment temperature 20~45C |
| Work pressure | <4Mpa |
| Nominal diameter | DN15-DN2000 |
| Accuracy class | ±1 |
| Display unit | Nm3/h, Nm3/min, L/h, L/min, t/h, t/min, kg/h and kg/min |
| Supply voltage | 24V, 220V optional (integrated type) 220V (split type) |
| output signal | 4"~20mA, 485 protocol, HART protocol |
| Applicable medium | Various gases (except acetylene gas) |
Working Principle
The thermal flow meter is a flow meter designed based on the principle of thermal diffusion. That is, when the fluid flows through the heating object, the heat loss of the heating object is proportional to the flow rate of the fluid. The sensor of this series of flow meters has two standards Grade RTD, one is used as a heat source, and the other is used to measure the temperature of the fluid. When the fluid flows, the temperature difference between the two has a linear relationship with the flow rate. Converted to a linear output measuring flow signal.
Thermal gas flow meters are widely used
Thermal gas flow meters are widely used in steel plants, coking plants, petroleum, chemical, thermal, medical, thermal power plants, environmental protection and other industries.
