Thermal Mass Flow Meters

Sage General Purpose - Blind

Overview

Flow Meter is thermal dispersion type, utilizing constant temperature difference method of measuring Gas Mass Flow Rate.

It contains two reference grade platinum RTD sensors clad in a protective 316 SS sheath. Features direct Mass Flow for gases, wide rangeability, low pressure drop, very low end sensitivity, and no moving parts.

Flow Meter is microprocessor based, does not have any potentiometers, and has RS232 communications that is accessible with optional cable assembly. Flow Meter is powered by 24 VDC or 115 VAC/ 230 VAC. The power dissipation is under 6 watts (e.g. under 250 ma at 24 VDC).

Electronics is with NEMA 4X Blind Enclosure. The electronics has a 4 to 20 ma opto-isolated output proportional to Mass Flow Rate as well as a 0 to 5 VDC output proportional to Temperature. Optionally, the 0 -5 VDC output can be configured to provide pulsed outputs of Totalized Flow (other output will be disabled).

Feature

• 24 VDC with current dissipation of less than 250 ma, or 115VAC/230 VAC
• No Display
• 4-20 ma isolated output of Flow Rate, and 0 - 5 VDC output of Temperature
• Configurable for Pulsed Outputs of Totalized Flow (in lieu of Flow Rate and Temperature)
• RS232 Communication and Software (upon request)
• Single Channel Operation
• Accuracy of +/- 1% of Reading +/- 0.5% of Full Scale
• Optional Diagnostics
• Common Units of Flow Outputs (Not Displayed): SCFM, SCFH, SCFD, SCCM, NCMM, NCMH, KG/S, KG/M, KG/H, KG/D, LBS/S, LBS/M, LBS/H, LBS/D, SLPM, SLPH
• Common Pulsed Outputs of Totalized Flow: SCF, SCF, SCC, NCM, KG, LBS, SL
• Common Units of Velocity Outputs (Not Displayed): SFPM, SFPS, NMPM, NMPS, NMPH
• Temperature Outputs (Not Displayed): °C and °F

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