System-c Instrumentation

Débitmètre massique à faibles pertes de charge MW-Series d'Alicat Scientific

Mass flow meter with reduced pressure loss MW-Series from Alicat Scientific System-c Instrumentation

Mass flow meter with reduced pressure loss MW-Series from Alicat Scientific

Mass flow meter

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Presentation

Whisper™ MW–Series Low Pressure Drop Mass Flow Meters measure mass and volumetric flow rates when there is little available system pressure, with pressure drops as low as 0.07 PSID (4.8 mbarD).

Whisper devices are built for processes with little available inlet pressure or a large amount of back pressure. These devices have a larger flow body and uniquely arranged laminar flow elements, resulting in pressure drops up to 10x lower than standard devices. Whisper instruments also utilize a much more sensitive pressure sensor package to take full advantage of the lower pressure readings.

Specs, features, and customization options

Alicat builds each instrument to order to meet your specific process needs. See additional configuration options below or speak with an applications engineer to optimize your device.

Devices are custom ranged from 0.5 SCCM full scale to 1,000 SLPM full scale.

Spec sheet for 0.5 SCCM full scale to 5 SCCM full scale ranges
Spec sheet for 10 SCCM full scale to 100 SLPM full scale ranges
Spec sheet for 250 SLPM full scale to 1000 SLPM full scale ranges

Standard specs

Full scale ranges: 0.5 SCCM to 1,000 SLPM
Measurement range: 0.01% – 100% of full scale
Accuracy: ±0.75% of reading or ±0.1% of full scale, whichever is greater
Optional high-accuracy: ±0.6% of reading or ±0.1% of full scale, whichever is greater
Repeatability: 0.1% of reading and 0.02% of full scale
Response time: 127 ms
Operating temperature: –10°C to +60°C
Full scale operating pressure: 60 PSIA (4.1 barA)

Features

Simultaneously measure volumetric flow, mass flow, gas pressure, and gas temperature.
Field-adjustable engineering units and STP/NTP conditions.
Select process gas from 98+ preloaded NIST-traceable gas calibrations.
Define and store 20 custom gas mixtures of up to 5 constituent gases.
Read measurements from the backlit display and control configuration using the integrated touchpad.
Optional integrated dual flow totalizers and alarms.

Technical features

Available ranges: max 0-1000 slpm, min 0-0.5 sccm/0-500 sμlm Flow measurement range: 0.01% – 100% of full scale. Standard accuracy calibration, NIST-traceable: +/- (0.8% of the reading + 0.2% of the full-scale range) Optional high-accuracy calibration, NIST-traceable: +/- (0.4% of the reading + 0.2% of the full-scale range) Repeatability: 0.2% of the full-scale range Typical measurement response time constant: 5-10 ms No warm-up time required Compatible gases: 98 pre-loaded selectable gas calibrations; additional mixtures definable with COMPOSER Operating temperature: -10°C to +60°C Max internal pressure (static): 45 psig (60 psia) / Max differential pressure (inlet to outlet): 15 psid / Proof pressure: 175 psig (190 psia)

Download the complete technical features