User guide

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Technical Data for MCP Moderate Flow Mass Flow Controllers
0 to 50 slpm Full Scale through 0 to 250 slpm Full Scale
Alicat MCP mass ow controllers are tted with a high performance valve for low pressure applications.
The following specications are applicable to Alicat MCP-Series Mass Flow Controllers only.
Please Note Maximum Pressure of 80 psig.
Standard Operating Specications (Contact Alicat for available options)
Performance MCP Mass Flow Controller
Accuracy at calibration conditions
after tare
± (0.8% of Reading + 0.2% of Full Scale)
High Accuracy at calibration conditions
after tare
± (0.4% of Reading + 0.2% of Full Scale)
Repeatability ± 0.2% Full Scale
Zero Shift and Span Shift 0.02% Full Scale / ºCelsius / Atm
Operating Range / Turndown Ratio 0.5% to 100% Full Scale / 200:1 Turndown
Maximum Controllable Flow Rate 102.4% Full Scale
Typical Response Time 100 ms (Adjustable)
Warm-up Time < 1 Second
Communications / Power MCP Mass Flow Controller
Monochrome LCD or Color TFT
Display with integrated touchpad
Simultaneously displays Mass Flow, Volumetric Flow, Pressure and Temperature
Digital Input/Output Signal
1
Options RS-232 Serial / RS-485 Serial / PROFIBUS
3
Analog Input/Output Signal
2
Options
0-5 Vdc / 1-5 Vdc / 0-10 Vdc / 4-20 mA
Optional Secondary Analog
Input/Output Signal
2
0-5 Vdc / 1-5 Vdc / 0-10 Vdc / 4-20 mA
Electrical Connection Options 8 Pin Mini-DIN / 9-pin D-sub (DB9) / 15-pin D-sub (DB15) / 6 pin locking
Supply Voltage 12 to 30 Vdc (15-30 Vdc for 4-20 mA outputs)
Supply Current 0.250 Amp
1. The Digital Output Signal communicates Mass Flow, Volumetric Flow, Pressure and Temperature
2. The Analog Output Signal and Optional Secondary Analog Output Signal communicate your choice of Mass
Flow, Volumetric Flow, Pressure or Temperature
3. If selecting PROFIBUS, no analog signal is available. PROFIBUS units do not have the display. See PROFIBUS
specications for PROFIBUS supply voltages and currents. (www.alicat.com/probus)
Operating Conditions MCP Mass Flow Controller
Mass Reference Conditions (STP) 25ºC & 14.696 psia (standard — others available on request)
Operating Temperature −10 to +50 ºCelsius
Humidity Range
(Non–Condensing)
0 to 100%
Maximum Pressure 80 psig
Mounting Attitude Sensitivity None
Valve Type Normally Closed
Ingress Protection IP40
Wetted Materials
303 & 302 Stainless Steel, Viton®, Silicone RTV (Rubber), Glass Reinforced Nylon,
Aluminum, Brass, 410 &416 Stainless Steel.
If your application demands a different material, please contact Alicat.
Range Specic Specications
Full Scale Flow Mass
Controller
Pressure Drop
1
at FS Flow
(psid) venting to atmosphere
Mechanical
Dimensions
Process Connections
2
MCP 50 slpm 7
4.4”H x 5.4”W x 1.6”D 1/4” NPT Female
MCP 100 slpm 20
MCP 250 slpm 60 5.0”H x 6.3”W x 1.6”D 1/2” NPT Female
1. Lower Pressure Drops Available, please see our WHISPER-Series mass ow controllers at www.alicat.com/whisper.
2. Compatible with Beswick®, Swagelok® tube, Parker®, face seal, push connect and compression adapter ttings. VCR and
SAE connections upon request.