Flow Controllers & Meters


BASIS™ BC–Series: OEM Gas Mass Flow Controllers

BASIS™ BC–Series OEM Mass Flow Controllers deliver fast and accurate gas flow control in a compact, economical package for high-quantity orders.
  • Fast, accurate control. Equipped with high-accuracy MEMS sensor and provides readings with NIST-traceable accuracy of ±(1.5% of reading + 0.5% of full scale) and repeatability of ±0.5% of reading.
  • Responsive. Industry-leading control speed and adjustable PID valve tuning ensure your product operation is not interrupted by pressure spikes.
  • Compatible. A small footprint, calibration for multiple gases, and dual analog-digital communications for greater design flexibility.

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Accessories included with purchase

Device specs and customization options

Quick Specs
BASIS BC-Series performance (most products)
  • Available full scale ranges: 100 SCCM to 50 SLPM
  • Steady state control range: 0.5% – 100% of full scale
  • Calibration accuracy, NIST-traceable: ±(1.5% of reading + 0.5% of full scale)
  • Repeatability: ±0.5% of reading
  • Typical control response time constant: 100 ms
  • Warm-up time: 70 ms
BASIS BC-Series operating conditions
  • Compatible gases: Air, Ar, CO2, N2, O2, N2O (selectable over serial connection); He or H2 calibration (for use with one gas only)
  • Operating temperature: 0°C to +50°C
  • Max operating pressure: 160 PSIA (75 PSIA for 0–20 SLPM ranges)
  • Proof pressure: 190 PSIA
  • STP reference conditions: 25°C & 1 atm
Device Ranges & Full Specs

Devices are custom ranged from 100 SCCM full scale to 50 SLPM full scale. Most devices have a controllable range of 0.5% to 100% of full scale (range dependent).

For a comprehensive device guide, read the BASIS™ controller operating manual.

Device Customization Options
Build and performance options
  • Communication protocols: Analog 0–5 Vdc, RS–232, RS–485, Modbus–RTU
  • Process connections: NPT, SAE
Optional Accessories
Accessories | Sold separately
  • Process port fittings and filters
  • Communications/power cables

Not exactly what you’re looking for?

  • Check out our other pressure or flow control and measurement solutions.
  • Our expert team of applications engineers is available to provide additional information, discuss your application, or answer any questions you may have.

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