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Liquid Mass Flow Controller Challenges Self in Difficulties

Liquid Mass Flow Controller Challenges Self in Difficulties
The liquid mass flow controller is composed of intelligent quantitative totalizer and flow sensor. The flow meter feeds back the pulse or current flow signal of the quantitative controller. When the flow cumulative flow reaches the set value (quantitative value), the quantitative controller will give A switch signal of the valve or pump has reached the start and stop control of the valve and pump. The liquid mass flow controller achieves automatic and manual control of feeding. The liquid mass flow controller is highly accurate, simple to operate and calibrated on site. The use and maintenance of the liquid mass flow controller is simple, and the liquid mass flow controller is widely used in the quantitative addition of raw materials in the chemical, food and feed industries.
Liquid mass flow controllers are designed for areas that require fast, precise control of small flow liquids. The simplified system integration of the liquid mass flow controller makes it a compact package size. The unique thermal measurement system of the liquid mass flow controller provides accurate measurement while the liquid temperature rises less than 5 degrees. Advanced control loops and a piezo actuated diaphragm control valve provide fast, stable control of small flow rates. The liquid mass flow controller also includes a liquid mass flow meter. The liquid mass flow controller is used in applications where flow control is not required.
Liquid mass flow controllers are designed for semiconductor manufacturing processes that require fast, accurate control of liquids. A digital control loop and a piezo-actuated diaphragm control valve allow response times of less than 1 second. The assembly process and the all-metal seal structure in the clean room ensures (high purity and leak integrity). Liquid Mass Flow Controller's unique laminar bypass and sensor components provide accurate measurements while the liquid temperature rises by only 5 degrees. In addition, the simplistic system integration of the liquid mass flow controller makes it a compact package size
Liquid Mass Flow Controller Specifications
Flow range: P2000i series and D2000i series liquid flow controllers are calibrated with isopropyl alcohol (IPA). When measuring other liquid media, it needs to multiply by a correction factor. Please refer to Table 1 for details.
Response time: P2000i series: 2s (within 2% of set point)
D2000i series: <1s (within 5% of the traffic)
Accuracy and linearity: ± 1% of full scale (P2000i series); ± 1% of reading (D2000i series)
Repeatability : P2000i Series: <±0.2% of full scale (at any continuous temperature)
D2000i Series: <±0.2% Reading
Turndown ratio: P2000i series: 50:1 (2%-100% full scale)
D2000i Series: 20:1 (5%-100% full scale)
Zui operating temperature: 40°C (104°F)
Zui large operating pressure: 125PSIG
Temperature coefficient: <0.1%/°C
> Setpoint input/flow output signal: 0-5VDC/0-5VDC (When output flow signal: Small 2kΩ resistance is required)
Power supply: +15VDC±10% (when current consumption is less than 200mADC)
Leakage rate : 1х10 -9 atm.cc/s He
Warm-up time: 10 minutes (P2000i series); 20 minutes (D2000i series)
Electrical connection: 9-pin D type
Inlet/outlet process connections : 1/8′′Male VCR or 1/8′′Swagelok
Control valve : Piezoelectric normally open
Built-in volume: <0.71ml (P2000i series); <1ml (D2000i series)
Weight : ≤ 0.68Kg
Liquid Mass Flow Controller When the fluid being measured flows through the sensor, the impeller in the sensor rotates with the kinetic energy of the liquid. At this time, the impeller blades periodically change the magnetic resistance of the magnetic circuit in the detection device, so that an electric pulse signal proportional to the frequency and the flow rate is induced at both ends of the detection coil, and is transmitted far after being amplified by the amplifier.

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