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Mass Flow Controllers with 20+ Gas Select Function

$2,475.00

Item# FMA-2601A

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $2,475.00
5-9 $2,351.25
10-24 $2,301.75
25-49 $2,202.75
50-99 $2,153.25
100+ $2,103.75

In stock

Lead Time ( If not in Stock): 6 weeks

Mass Flow Controllers with 20+ Gas Select Function FMA-2601A FMA-2601A
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  • 130+ Gas Calibrations, Including: He, O2 , Neon, N2O, N2, Air, Argon, CO, CO2, Methane, Ethane, Propane, Butane, Acetylene, Ethylene, H2
  • Pressure, Temperature, Volumetric Mass Flow Simultaneously Displayed
  • Easy Operator Push Button Interface
  • NIST Traceability Standard
  • Full Scale Ranges from 0.5 SCCM to 3000 LPM
  • Response Time of 100 milliseconds Typical
  • Turndown Ratio of 200:1 Typical
  • Position Insensitive
  • Accuracy: ±(0.8% of reading + 0.2%FS)
  • RS232 Standard
  • No Warm Up Time

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Category
Media Type
Flow Range
Accuracy
Communications Protocol
Output Signal
Wetted Materials
Display
Max Operating Pressure
Max Process Temperature
Process Connection Type
Process Connection Size
Features

Product Specs

  • Accuracy Value ±(0.8% of reading + 0.2% FS)
  • Connection Type 8-pin circular mini DIN
  • Maximum Ambient Humidity 100% RH
  • Maximum Ambient Temperature 50°C (122°F)
  • Minimum Ambient Humidity 0% RH
  • Measurement Type Flow
  • Minimum Ambient Temperature -10°C (14°F)
  • Pulse Output 0 to 5 Vdc
  • Response Time 100 ms
  • Supply Voltage 12 to 30 Vdc for units 20 SLM and smaller
  • Wetted Materials Small Valve: 303 & 302 Stainless Steel
  • Turndown Ratio 100:1
  • Zero Shift 0.02%/ATM FS/°C
  • Repeatability ±0.2% FS

The FMA-2600A Series mass and volumetric flow controllers use the principle of differential pressure within a laminar flow field to determine and control mass flow rate. A laminar flow element (LFE) inside the meter forces the gas into laminar (streamlined) flow. Inside this region, the Poiseuille equation dictates that the volumetric flow rate be linearly related to the pressure drop. A differential pressure sensor is used to measure the pressure drop along a fixed distance of the LFE. This, along with the viscosity of the gas, is used to accurately determine the volumetric flow rate. Separate absolute temperature and pressure sensors are incorporated and correct the volumetric flow rate to a set of standard conditions. This standardized flow rate is commonly called the mass flow rate and is reported in units such as standard cubic feet per minute (SCFM) or standard liters per minute (SLM).

The controller uses a true proportional valve coupled to the flow body to control flow using the integral PID loop controller. Standard units include a 0 to 5 V output (4 to 20 mA optional) and RS232 communications. The gas-select feature and the setpoints can be adjusted from the front keypad or via RS232 communications. Volumetric flow, mass flow, absolute pressure, and temperature can all be viewed or recorded through the RS232 connection. It is also possible to multi-drop up to 26 units on the same serial connection to a distance of 46 m (150').


SPECIFICATIONS

Accuracy: ±(0.8% of reading + 0.2%FS)
Repeatability: ±0.2% FS
Turndown Ratio: 100:1
Control Response Time: 100 ms
Input Control Signal: 0 to 5 Vdc, RS232
Output Signal: 0 to 5 Vdc, RS232
Optional Input/Outputs: 4 to 20 mA, 0 to 10 Vdc
Operating Temperature: -10 to 50°C (14 to 122°F)
Zero Shift: 0.02%/ATM FS/°C
Span Shift: 0.02%/ATM FS/°C
Humidity Range: 0 to 100% RH, non-condensing
Excess Flow Rate: 2.4% FS
Wetted Materials: Small Valve: 303 & 302 Stainless Steel, FKM, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Brass, 430FR Stainless Steel, Silicon, Glass. Large Valve: 303 & 302 Stainless Steel, FKM, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, 416 Stainless Steel, Silicon, Glass.
-LSS (Option):316LSS, 303SS, 430FRSS, Perfluoroelastomer standard, FKM, EPDM, Buna, Neoprene Maximum Pressure: Mass Flow Controllers: 145 psig
To Use in Volumetric Mode: Near atmosphere, 15 psig recommended maximum. Volumetric flowmeters and controllers not certified for accuracy at mass flow rates above the rated flow range of the meter. They are designed for near atmospheric pressure conditions only. The recommended maximum operating pressure is 15 psig Minimum Differential Pressure Required:
5 SLM and under: 5 psid; 10 to 250 SLM:
15 psid; 500 SLM: 5 psid; 1500 SLM: 10 psid
Supply Current: 0.250 A for 20 SLM and under; 0.75 A for 50 SLM and above (typical)
Supply Voltage: 12 to 30 Vdc for units
20 SLM and smaller; 24 to 30 Vdc for units
50 SLM and larger
Electrical Connections: 8-pin circular mini DIN

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