Product introduction
The thermal mass flowmeter is composed of sensor and signal analysis, processing and control unit. One part of the sensor measures temperature, while the other part is used for heating. The former monitors the actual process temperature value; The latter maintains a constant temperature value so that it is always higher than the actual process temperature and maintains a constant temperature difference from the process temperature. The greater the mass flow of the gas, the greater the cooling effect, and the greater the energy required to maintain the differential temperature. Therefore, the mass flow rate of the measured gas can be obtained by measuring the energy of the heater.
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Product characteristics
※ Easy installation, easy maintenance two-way detection, anti-vibration
※ Up to 24 points flow measurement
※ Correction of output analog multi-point nonlinear curve correction
※ Wide range than 100:1
※ The flow rate and temperature are detected simultaneously, and the display is switched
※ Large diameter small flow measurement, leakage detection can be done
※ Using proprietary technology "double balance structure" package sensor
※ Proprietary high humidity, high temperature algorithm, medium temperature up to 500℃
※ Direct mass flow detection without temperature and pressure compensation
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Technical parameter
Measuring medium: Applicable material all gases except acetylene gas. Containing dust, sand, moisture, all kinds of corrosive gases.
Precision: ±1.5% Reading repeatability: ±0.2%
Applicable pipe diameter range: φ25 ~ φ2000
Measuring flow rate range: 0.1Nm/s ~ 120Nm/s.
Applicable pressure range: ≤6.0MPa
Applicable medium temperature range: 0 ~ 100℃, -10 ~ 150℃, -30 ~ 200℃
Sensor material: 1Cr18Ni9Ti, Hastelloy, titanium, 316L, aluminum, 304
Sensor diameter: φ2.5, φ3
Insert sensor probe rod diameter: φ19 (standard), φ12, φ10, φ8, φ6
Probe rod material (protection tube) : 1Cr18Ni9Ti, 304 stainless steel, 316L
Preheating time: ≤15S
Response time: ≤100mS
Transmitter housing material: die-cast aluminum
Working voltage: DC20~30V
Allow residual ripple: When the value ranges from 0 to 100Hz, the Upp is 30mv, and the Uss is less than 10mV
Maximum noise: When 500Hz~10KHz, Ueff = 2.0mV
AC85~265V
Standard: AC110V or AC220V
Signal output: 4-20mA, RS232, RS485 (Modbus protocol)
Alarm: 2 relay, 3A/250V AC, 3A/30V DC
On-site display: LCD LCD display
Construction type: Insert type and pipe type
Electrical interface: M20*1.5
Protection class: IP65
