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  ie250a ip66-rated, elastomer-sealed 100-250 slm mass flow controller IM250A Mass Flow Controller, IP66-rated, Metal-sealed, 100 - 250 slm


  • Full Scale Flow Range
    100 to 250 slm (N2 equivalent)
  • Maximum Inlet Pressure
    150 psig
  • Normal Operating Pressure Differential
    25 to 45 psid
  • Proof Pressure
    1000 psig
  • Burst Pressure
    1500 psig
  • Control Range
    2% to 100% of Full Scale
  • Typical Accuracy
    ±1% of set point for > 20 to 100% Full Scale
    ±0.2% of Full Scale for 2 to 20% Full Scale
  • Repeatability
    ±0.3% of Reading
  • Resolution
    0.1% of Full Scale
  • Zero Temperature Coefficient
    <0.05% of Full Scale/°C
  • Span Temperature Coefficient
    <0.08% of Reading/°C
  • Inlet Pressure Coefficient
    <0.02% of Reading/psi
  • Typical Settling Time
    <3 sec typical above 10% Full Scale @ 50 psi
  • Warm-up Time
    30 minutes
  • Operating Temperature
    10° to 50°C
  • Storage Humidity
    0 to 95% Relative Humidity, non-condensing
  • Storage Temperature
    -20° to 80°C
  • Fitting Type
    Swagelok® 8 VCR®
  • External Leak Integrity
    <1 x 10-10 (scc/sec He)
  • Leak Integrity Through Closed Valve
    <1.0% of Full Scale at 40 psia to vac (<500 mTorr)
  • Wetted Materials
    316L S.S. VAR, 316 S.S., Elgiloy, 430FR, Buna-N, nickel, polyimide
  • Surface Finish
    10µ inch average Ra
  • Weight
    3 lbs (1.4 kg)
  • Enclosure Rating
  • Compliance
  • Power Requirements
    +15 to +24 VDC @ (<4 watts)
  • Flow Input Output Signal
    Voltage: 0 to 5 VDC
    Current: 4 to 20 mA
  • Analog I/O Connector
    15-pin Type "D" male
  • Temperature Display
    0 to 85°C
  • Temperature Resolution
  • Temperature Accuracy


High Performance Capabilities

The performance capabilities of the IM250A - fast settling time (< 2 seconds) and 1% of set point accuracy - exceed those of other typical high flow MFCs. Precise control is maintained down to 2% of the IM250A’s configured Full Scale. This performance, combined with the multi-gas/multi-range capability, extends the user’s ability to minimize high flow MFC inventory requirements.

Multi-Gas / Multi-Range Capability

Utilization of the multi-gas/multi-range feature is made simple through the device’s embedded software and standard Ethernet interface that requires no special software or hardware to operate, only a standard web browser and a PC. Already stored on the device are critical gas parameters for typical high flow rate gases. It’s simply a matter of selecting the gas and specifying the Full Scale flow range to configure the device. This interface also allows the user to perform device diagnostics, plot flow and store data for offline analysis.

IP66 Rated Enclosure

The IM250A mass flow controller is designed for use in harsh environments where resistance to liquid or dust ingress are essential. Applications include Biotech, Pharmaceutical, Food and Beverage where “hosedown” may be required in addition to industrial glass production where moisture and dust are present. With its IP66 rated enclosure, the IM250A meets these stringent requirements of these aggressive environments.

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