The Millipore/Tylan FC2901M0 4V is a mass flow controller engineered for precise gas flow regulation in semiconductor and industrial processes. It employs a thermal mass flow sensor to measure and control flow rates with ±1.0% accuracy across its operating range. The 4V designation indicates 1/4″ VCR fittings (124.0 mm [4.88″] VCR fitting dimensions). This FC-2900/FM-3900 series instrument features autozero digital circuitry that automatically resets outputs to zero under no-flow conditions and compensates for temperature coefficients and calibration drift. User-selectable response times accommodate both fast (0.5 second) short-cycle processes and controlled longer-duration operations, with standard step response of 1 second. The controller operates reliably across ±12 volts to ±18 volts power supply variation with low lead current balanced power load characteristics.
Technical Specifications
• Accuracy: ±1.0% of full scale
• Full Scale Range: 0 to 10 slm (nitrogen equivalent)
• Step Response Time: 1 second nominal; 0.5 second optional for short-cycle applications
• Operating Pressure Differential: 0.7 – 2.8 bar (10–40 psid)
• Reference Conditions: 0°C, 760 mm Hg (14.7 psia)
• Power Supply Range: ±12 VDC to ±18 VDC
• Control Signal: 4–20 mA input
• Output Indication: 0 to 5.0 VDC, linearly proportional to flow rate
• Fitting Type: 1/4″ VCR
• Dimensions: 121.79 mm width [4.795″], 76.20 mm depth [3.00″]
• Weight: 0.9 kg (2 lbs)
– Key Features
• Autozero digital circuitry for automatic zero-flow reset and calibration curve adjustment
• Quality elastomer seals for reliable long-term operation
• User-selectable response time modes for process flexibility
• Insensitive to power supply voltage variations
• Balanced power load minimizes signal loading on control devices
– Typical Applications
Semiconductor manufacturing, precision gas delivery systems, and industrial process control requiring stable flow regulation and thermal mass sensing accuracy.
– Compatibility & Integration
1/4″ VCR fittings enable direct integration with standard pneumatic and gas distribution systems. 4–20 mA control signal and 0–5.0 VDC output interface with PLC, DAQ, and analog control systems. Power supply tolerance (±12–±18 VDC) accommodates varied laboratory and industrial power architectures.
