IS-Series: Intrinsically Safe Mass Flow Controllers & Meters for Hazardous Environments
IS-Series Intrinsically Safe Mass Flow Controllers & Meters are designed for use in hazardous environments, with Class 1/Div 1 hazardous area classifications.
- Hazardous area certifications: Class 1, Zone 1, Group IIC, T4; Class 1, Div. 1, Group A,B,C,D,T4.
- Fast, multivariate data. Immediately upon powering up, control either mass flow, volumetric flow, or pressure and display instantaneous flow, pressure, and temperature readings, in your choice of engineering units.
- Easy integration. Inline or NeSSI SP76 compatible, custom process ports and electrical connectors, and your choice of Modbus RTU or serial communications for easy integration into your process.
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Device specs and customization options
Quick Specs
IS-Series performance
- Available full scale ranges: 0.5 SCCM to 250 SLPM
- Steady state control/measurement range: 0.01% – 100% of full scale (10,000:1)
- Standard accuracy calibration, NIST-traceable: ±0.6% of reading or ±0.1% of full scale, whichever is greater
- Optional high-accuracy calibration, NIST-traceable: ±0.5% of reading or ±0.1% of full scale, whichever is greater
- Repeatability: ±(0.1% of reading + 0.02% of full scale)
- Typical control response time: as fast as 25 ms
- Warm-up time: <1 s
IS-Series operating conditions
- Compatible gases: 98+ preloaded selectable gas calibrations
- Operating temperature: –20°C to +70°C
- Humidity range: 0-95%, non-condensing
- Ingress protection: IP66 (dust tight and protected against heavy seas or powerful jets of water)
- Full scale operating pressure: 160 PSIA
- Max differential pressure: 75 PSID
- Proof pressure: 200 PSIA
- User selectable reference conditions (defaults): 25°C & 1 ATM (STP) and 0°C & 1 ATM (NTP)
Device Ranges & Full Specs
Devices are custom ranged from 0.5 SCCM full scale to 250 SLPM full scale with controllable/measureable ranges of 0.01% to 100% of full scale.
Device Features
Included with each device
- Multi-variable process measurements: Simultaneously measure mass flow, volumetric flow, gas pressure, and gas temperature.
- User changeable units of measurement: Change the unit of measurement for pressure, flow, or temperature from our extensive list of engineering units.
- Gas selectability: Select your process gas from any of the 98+ preloaded NIST-traceable gas calibrations in our gas list.
- Gas Select COMPOSER™: Define 20 custom gas mixtures of up to 5 constituent gases using our Gas Select Composer™ firmware.
- Monochrome backlit LCD with integrated touchpad: Easily read measurements using the backlit display and control configurations with the user-friendly integrated touchpad.
- User adjustable setpoint ramping & limits: Configurable ramp rates allow the process variable to be controlled as fast or as slow as desired, and configurable setpoint limits protect processes from inadvertent setpoint changes.
- User adjustable standard temperature and pressure (STP) conditions: Quickly change reference conditions without need for recalibration.
- Valve close override and valve open override: Utilize alarms to quickly vent your system or stop all flow as needed.
Request at time of purchase | Free
- Optional integrated totalizers & batch control: Totalize mass flow every 1 ms for precise tracking of total flow over time and use batch control to dispense precise volumes.
Device Customization Options
Build and performance options
- Communication protocols: Analog, RS–232, RS–485, Modbus RTU
- Displays: Backlit monochrome or color; integrated or panel–mount
- Process connections: NeSSI SP76 compatible; M5, 10-32”; 1/8”, 1/4“ NPT; BSPP, SAE, and VCR
- Wetted Materials: 302, 303, 304, and 316L stainless steel; FKM, alumina ceramic, glass, gold, heat-cured epoxy, heat-cured silicone rubber, polyamide, silicon
- Calibration: High-accuracy; custom calibration points
Accessories | Sold separately
- Process port fittings and filters
- Power supplies
Not exactly what you’re looking for?
- Check out our other flow or pressure control and measurement solutions.
- Our expert team of applications engineers is available to provide additional information, discuss your application, or answer any questions you may have.
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