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Alicat Scientific Whisper MCW Series Mass Flow Controller
Rp.54.149.000
- Availability:
- 6 - 8 WEEKS
- Product Code:
- MC
- Brand:
- Alicat Scientific
- Update Terakhir:
- 13 May 2017
-
Free delivery
-
Money back guarantee
The Alicat Scientific Whisper MCW series mass flow controller is an accurate, versatile and dependable instrument designed to take the guess work out of precision gas flow control. Suitable for a wide range of applications, the MCW series combines Alicat's innovative laminar flow technology with low-drop proportional control valves and high-sensitivity differential pressure sensors making them particularly well-suited to applications that have minimal differential pressure availability, such as leak checking, gas analysis and totalizing, or natural gas applications.
The Alicat Scientific's Whisper MCW Series was designed to exceed the requirements that customers place on mass flow controllers. Flow ranges are available from 0.5 standard cubic centimeters per minute to 500 standard liters per minute with a 200:1 turndown ratio and pressure drops as low as 3.6 mbar, or 0.052 psi. Basic accuracy is ±0.8% of reading ±0.2% of full scale. Calibrated and ready for use with 20 gases and 10 gas blends, The Whisper MCW series has a remarkably fast start-up time and a response time of just 10 milliseconds.
The Alicat Scientifics Whisper MCW Series mass flow controller is an extremely versatile instrument. In addition to mass flow measurements, the MCW Series also measures pressure, temperature and volumetric flow, meaning fewer instruments to buy and install. The MCW series meter can also be equipped with an Alicat 9V battery pack to make a stand alone secondary calibration standard or flow verification meter. Alicat's patented technology allows its mass flow controllers to have very few moving parts. All of the internal components are fixed in place resulting in very little physical change inside the mass flow meter. Little physical change in the flow cavity means higher rates of consistency and repeatability.
Alicat Scientific Whisper MCW Series mass flow controllers were designed to be used as a stand-alone device. All measured parameters are displayed in real time on the digital display. Any measured parameter can be brought to the center of the screen. The push button interface allows easy configuration of the meter without the need for computers, complicated software or scripts. The MCW Series features Gas Select which allows users to select from 30 gases and gas blends via the display or through the RS-232 interface. Remote displays are also available. Whisper MCW Series mass flow controllers are equipped with multiple analog inputs and outputs in addition to the RS-232 digital input and output.
Tags:
- Flow ranges from 0.5SCCM to 500 SLPM
- Very low pressure drop operation
- Multiple parameter measurement: Mass flow, volumetric flow, temperature, and pressure
- No warm up time
- Viton seals
- 50 psig max pressure
- 8-pin mini-DIN electronic connector
- Fully functional digital display
- Standard barrel type power connector
- Choice of 0 to 5Vdc, 0 to 10Vdc, 1 to 5Vdc, 4 to 20mA analog output or RS-232 digital output
- Choice of 0 to 5Vdc, 0 to 10Vdc, 1 to 5Vdc, 4 to 20mA analog input or RS-232 digital input
- User tunable PID valve tuning
- 30 user selectable on-board gas calibrations
- 200:1 turndown ratio
- NPT process connections
- Lifetime warranty
- SENSOR AND CONTROL PERFORMANCE:
- Mass Flow Accuracy at calibration conditions1: ±0.8% of reading and ±0.2% of full scale
- High Accuracy Option1: ±0.4% of reading and ±0.2% of full scale; Available for ≥5 SCCM models
- Repeatability (2σ): ±(0.2% of reading + 0.02% of full scale)
- Steady State Control Range2: 0.5–100% of full scale
- Typical Control Response Time: 30 ms to 63% of step change (T63), user adjustable
- Valve Function: Normally Closed
- Temperature Sensitivity: Mass flow zero shift and span shift: 0.03% of full scale per °C from 25°C
- Pressure Sensitivity: Mass flow zero shift and span shift: ±(0.08% of reading + 0.02% of full scale) per atmosphere from calibration conditions
- Operating Temperature Range: −10–60°C (expanded range available)
- Temperature Accuracy: ±0.75°C
- Operating Pressure Full Scale:60 PSIA
- Pressure Accuracy above 1 ATM: ±0.75% of reading
- Pressure Accuracy below 1 ATM: ±0.1 PSIA
- Totalizer Volume Uncertainty: ±0.5% of reading additional uncertainty
- Sensor Response Time: <1 ms
- Typical Indication Response Time3 127 ms (user adjustable)
- Typical Warm-Up Time: <1 s
- 1 Stated accuracy is after tare under equilibrium conditions. Extreme gas behavior (especially near state boundaries) can introduce additional flow uncertainties.
- 2 Achievable steady state control may be limited by user-configurable PID tuning and process conditions. Dynamic control performance is also limited by control response time, which may vary with the flow rate.
- 3 Indication response time includes user-adjustable averaging up to 255 ms.
- MECHANICAL:
- Minimum Operating Pressure: 11.5 PSIA common mode pressure (lower operating pressures available); Differential pressure must exceed model pressure drop, see below for details
- Maximum Operating Pressure: Damage possible above 80 PSIA common mode pressure; Damage possible above 15 PSID differential pressure
- Ingress Protection: IP40 (consult Alicat for weatherproofing options)
- Humidity Range: 0–95%, non-condensing
- Wetted Materials: 302 / 303 / 304 / 430FR stainless steel, Viton®, heat-cured silicone rubber, glass-reinforced polyphenylene sulfide, heat-cured epoxy, alumina, gold, brass, silicon, glass
- COMMUNICATIONS:
- Analog I/O Options: 4–20 mA, 0–5 VDC, 1–5 VDC, 0–10 VDC
- Digital I/O Options: RS-232 Serial by default; RS-485 Serial, Modbus RTU (over RS-232 or RS-485), Modbus TCP/IP, DeviceNet, EtherCAT, EtherNet/IP, Profibus
- Electrical Connection Options: 6 pin locking, 8 pin mini-DIN, 8 pin M12, DB-9, DB-15
- Power Requirements4: 12–24 VDC, 250 mA (290 mA if equipped with 4–20 mA output)
- Digital Data Update Rate4: 40 Hz at 19200 baud
- Analog Data Update Rate: 1 kHz
- Display Update Rate: 10 Hz
- Analog Signal Accuracy: ±0.1% of full scale additional uncertainty
- 4 Consult the individual operating bulletins for specific industrial protocol power requirements and data transmission specifications
- (1) Instruction Manual
Brochure/DatasheetDownload
Note: Prices are not binding at any time subject to change without prior notice
