MCD–Series: Bidirectional Gas Mass Flow Controllers

Product description:

• Versatile & accurate. Real-time control of flow or pressure in both directions with NIST-traceable accuracy to ±0.5% of reading or ±0.1% of full scale for 98+ gases and 20 custom-defined mixtures.
• Fast control, multivariate data. Millisecond-response times immediately upon powering up, to control either mass flow, volumetric flow, or pressure and display instantaneous flow, pressure, and temperature readings, in your choice of engineering units.
• Easy integration. Custom process ports and electrical connectors, and your choice of EtherNet/IP, EtherCAT, DeviceNet, Profibus, PROFINET, Modbus (RTU and TCP/IP), or serial communications for easy integration into your industrial process.

MCD-Series standard specs

• Full scale ranges: 0.5 SCCM to 3000 SLPM (Devices are custom-ranged)
• Control range: 0.01% to 100% of full scale
• Accuracy: ±0.6% of reading or ±0.1% of full scale, whichever is greater
• Optional high-accuracy: ±0.5% of reading or ±0.1% of full scale, whichever is greater
• Repeatability: ±(0.1% of reading + 0.02% of full scale)
• Response time: as fast as 30 ms
• Warm-up time: <1 s
• Operating temperature: –10°C to +60°C
• Full scale operating pressure: 160 PSIA

Included with each device

• Multi-variable process measurements: Simultaneously measure mass flow, volumetric flow, gas pressure, and gas temperature.
• User changeable units of measurement: Change the unit of measurement for pressure, flow, or temperature from our extensive list of engineering units.
• Gas Select: Select your process gas from any of the 98+ preloaded NIST-traceable gas calibrations in our gas list.
• Composer™: Define 20 custom gas mixtures of up to 5 constituent gases using our Composer™ firmware.
• Monochrome backlit LCD with integrated touchpad: Easily read measurements using the backlit display and control configurations with the user-friendly integrated touchpad.
• User-adjustable setpoint ramping & limits: Configurable ramp rates allow the process variable to be controlled as fast or as slow as desired, and configurable setpoint limits protect processes from inadvertent setpoint changes.
• User-adjustable standard temperature and pressure (STP) conditions: Quickly change reference conditions without need for recalibration.
• Valve close override and valve open override: Utilize alarms to quickly vent your system or stop all flow as needed.

Build and performance options

• Communication protocols: Analog, RS–232, RS–485, DeviceNet, EtherCAT, EtherNet/IP, Modbus RTU or TCP/IP, PROFIBUS, PROFINET
• Displays: Backlit monochrome or color; integrated or panel–mount
• Process connections: NPT, SAE, AN, BSPP/G, compression, VCR, or VCO fittings
• Elastomers: Viton, FFKM, EPDM, Silicone
• Calibration: High-accuracy; custom calibration points
• Aggressive gas compatibility: Models with wetted materials compatible with many pure corrosive gases and most refrigerant gases, in addition to all non-corrosive gases and a variety of liquids also available.

Valve options & PID tuning

Your mass flow controller may be customized with one of the following valving options to ensure optimal performance under your expected process conditions.

• MCD: small proportional control valve for flow ranges of 20 SLPM and below
• MCD with PCA designation: high-performance proportional control valve used for some applications with higher pressures
• MCPD: small proportional control valve with the largest orifice (not available for corrosive configurations)
• MCRD: nearly frictionless large Rolamite proportional valve for flow rates of 50 SLPM and above

Custom PID valve tuning ensures maximum performance for your specific process conditions.

Links

Product information

Product manuals

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