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Mass Flow Controllers with 20+ Gas Select Function
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130+ Gas Calibrations, Including: He, O2 , Neon, N2O, N2, Air, Argon, CO, CO2, Methane, Ethane, Propane, Butane, Acetylene, Ethylene, H2
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Pressure, Temperature, Volumetric & Mass Flow Simultaneously Displayed
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Easy Operator Push Button Interface
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NIST Traceability Standard
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Full Scale Ranges from 0.5 SCCM to 3000 LPM
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Response Time of 100 milliseconds Typical
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Turndown Ratio of 100:1 Typical
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Position Insensitive
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Accuracy of ±1% Full Scale
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RS232 Standard
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No Warm Up Time
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View related products - Electronic Mass Flow Meters & Controllers
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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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† All dollar amounts on this site are shown in US currency.
Note: Comes complete with 24 Vdc universal power supply, 1.8m (6') cable, 8-pin male Mini- DIN connector, operator's manual, and NIST certificate.
Standard units are calibrated to air @ 5 psig for 0 to 1 LPM, 15 psig for 2 to 10 LPM, 30 psig for 20 to 100 LPM, and 50 psig for 200 LPM and greater.
For custom calibrations, add "-(*)" to the model number, no additional cost. *Specify gas, and inlet/outlet or backpressure for custom calibrations.
Calibrations done at ambient (25C/77F) temperature only.
To replace the standard RS232 communications with RS485, add suffix "-RS485" to the model number, add $120 to the price.
Standard input is 0-5V, for optional 4-20 mA input add suffix "-IN" to the model number, no additional cost.
Standard output is scaled to the mass flow rate. For volumetric flow rate as standard output add suffix "-VOL" to the model number. For "-VOL" controllers the control loop is set to volumetric as standard.
Optional secondary output are scaled the same as the primary output scale. For an alternate output scale add suffix "-V2T" for voltage scaled for temperature, "-I2T" for current scaled for temperature, "-V2P" for voltage scaled for pressure or "-I2P" for current scaled for pressure, no additional cost.
For units scaled in SCFH, add suffix "-SCFH" to model number, no additional cost. Please specify the desired range in SCFH.
For totalizer option, add suffix "-TOT" to the model number, add $120 to the price. Please specify resolution.
This is a 6-digit counter. Examples: For totalizing in liters with 1/100 liter resolution, the max count would be 9999.99. For totalizing in liters with 1 liter resolution, the max count would be 999999.
For a Remote Display, add suffix "-RD-*FT" to the model number, add $210 to the price. Replace the * in the suffix with the required length in whole feet, the maximum length is 3.6576 m (12'). Please note the optimum distance in feet is between 2.7 to 3 m (9 to 10').
Ethernet/IP, DeviceNet, Modbus and Profibus communications are also available for an additional charge.
Ordering Example: (1) FMA-2601A-I2 10-32 Thread Mass Gas Flow Controller with optional second channel output of 4-20mA, USD$94,665.00
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Part Number Builder |
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Option Descriptions
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(1)
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Flow Range
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Select
01 for 0.5 SCCM
02 for 1 SCCM
14 for 2 SCCM
15 for 5 SCCM
03 for 10 SCCM
16 for 20 SCCM
04 for 50 SCCM
17 for 100 SCCM
18 for 200 SCCM
19 for 500 SCCM
20 for 1 SLM
05 for 2 SLM
06 for 5 SLM
07 for 10 SLM
08 for 20 SLM
09 for 50 SLM
10 for 100 SLM
11 for 250 SLM
12 for 500 SLM
13 for 1000 SLM
21 for 1500 SLM
22 for 2000 SLM
23 for 3000 SLM
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(2)
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Output
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Select
Nothing(leave field blank) for None
-I for 4 to 20 mA output
-I2 for Two 4 to 20 mA outputs
-V2 for Two 0 to 5V Outputs
-I2T for Two 4 to 20 mA outputs second output for temperature
-V2T for Two 0 to 5V outputs second output for temperature
-I2P for Two 4 to 20 mA outputs second output for pressure
-V2P for Two 0 to 5V outputs second output for pressure
-VOL for Volumetric flow rate as standard output
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(3)
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Integrated positive shut-off valve
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Select
Nothing(leave field blank) for Standard
-P for Integrated positive shut-off valve (only available on models up to 20 SLM)
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(4)
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Input
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Select
Nothing(leave field blank) for 0 to 5V
-IN for 4 to 20 mA input
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(5)
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RS485
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Select
Nothing(leave field blank) for RS232
-RS485 for RS485
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(6)
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SCFH
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Select
Nothing(leave field blank) for Standard
-SCFH for Units scaled in SCFH
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(7)
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Totalizer
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Select
Nothing(leave field blank) for Standard
-TOT for Totalizer
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NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
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