FS series

FS series

FS series

Product catalog summary
General Description: The document describes the Universal Flow Monitors' Laminar Flow Element differential pressure flowmeters, suitable for clean, dry, non-corrosive, non-condensing gases. These meters provide mass flow output corrected for temperature and pressure, with applications in robotics, painting, and welding. They offer various outputs (4-20 mA, 0-5 V, pulse) and are NIST traceable and CSA certified.
Features: Key features include mass flow measurement with integrated temperature and pressure correction, visual readout of flow rate or total, programmable set points, intrinsic safety, no moving parts for reduced maintenance, and a wide turndown ratio for precision measurement.
Typical Applications: The meters are used in burner management, leak tests, gas consumption, gas blending, shielding gas, laser cutting, die casting, and robotics.
Specifications:
  • Flow Ranges: 0.005 - 1300 SLPM (0.01 - 2600 SCFH)
  • Max Pressure: 50 PSIG (3.4 Bar)
  • Accuracy: < +/- 1% of reading
  • Repeatability: ± 0.2% of full-scale
  • Response Time: 10-100 msec
  • Gas Compatibility: Non-corrosive, non-condensing
  • Operating Temperature: -13 °F to 176 °F (-25 °C to 80 °C)
  • Process Connections: 1/8"-3/4" NPT female
  • Display: LCD rate/total, multi-gas, alarms
Electrical Specifications:
  • Supply Voltage: 10–24 VDC
  • Supply Current: 22 mA max for 4-20 mA loop-powered transmitters
  • Output: 4-20 mA, 0-5 VDC, 0-10 VDC, 1-5 VDC, 2-10 VDC, Pulse Out
  • Electrical Connection: 5-pin or 8-pin connector
Principles of Operation: The flow of gas through a Laminar Flow Element generates a differential pressure proportional to the flow velocity and viscosity of the gas. Mass flow rate is determined using temperature and absolute pressure sensors to compensate for density variations.
Installation Dimensions: The document provides dimensions for various models, with optional mounting brackets available.
Ordering Information: Instructions are provided for selecting model codes based on material, seals, special options, output, thread type, gas type, and flow range.
See more

Catalog excerpts

FS series-1

FLOW Range FS Series CSA Certified CE Marked ® TYPICAL APPLICATIONS • Burner Management • Leak Tests • Gas Consumption • Gas Blending • Shielding Gas • Laser Cutting • Die Casting • Robotics General Description • Mass flow measurement with integrated temperature and pressure correction • Visual readout of flow rate or total, pressure, and temperature • Programmable set points • Intrinsically Safe • No moving parts reduces maintenance • Wide turndown for precision measurement at low or high flow • 10-point calibration (NIST Traceable certificate available) Laminar Flow Element differential pressure flowmeters are good for clean, dry, non-corrosive, noncondensing gasses. Corrected for temperature and pressure, it has a mass flow output. The EMI immunity and fast response (5 ms available) make the meters suitable for robotics’ applications (painting or welding). A variety of outputs are available (4-20 mA, 0-5 V, and pulse). NIST traceable and CSA units are Type 4 weatherproof. The accuracy is less than 1% of reading subject to limitations described in the Specifications section. The integrated LCD display can indicate flow rate or total as well as gas temperature and pressure. Calibration is done on air with empirically derived conversion factors. Oxygen cleaning optional. Sizes range from 1/8 to 3/4 inch threaded connections. Anodized aluminum is the standard material for the meter body and 316 Stainless Steel is available for use where external cor

 Open the catalog to page 1
FS series-2

Principles of Operation DIFFERENTIAL PRESSURE TEMPERATURE SENSOR ABSOLUTE PRESSURE DOWNSTREAM PRESSURE INPUT FLOW OUTPUT FLOW Laminar Flow Elements PRINCIPLES OF OPERATION: Flow of gas through a Laminar Flow Element generates a differential pressure between the absolute and downstream pressure sensors. This differential pressure is proportional to the flow velocity and viscosity of the gas. Mass flow rate is determined by utilizing the temperature and absolute pressure sensor to compensate for density variations of the gas. General Specifications Flow Ranges High Pressure Drop (2.6 psi)1 Turndown...

 Open the catalog to page 2
FS series-3

Installation Dimensions of FS Series OPTIONAL MOUNTING BRACKETS MODEL 100 SLPM 250 SLPM 500 SLPM 1000 SLPM Cable shown sold separately BROWN WHITE Alarm Common Chassis Ground GREEN WHITE BROWN 2 Signal Output LOAD 0VDC (4-20mA Loop Return) +24 VDC Chassis Ground BLACK BLUE Pin configuration: • 1: +24VDC • 2: 0VDC (4-20 mA loop return) • 3: Signal Output • 4: Tare • 5: Alarm 1 + • 6: Alarm Common • 7: Alarm 2 + • 8: Chassis Ground Pin configuration: • 1: +24VDC • 2: 0VDC (4-20 mA loop return) • 3: Signal Output • 4: Tare • 5: Chassi

 Open the catalog to page 3
FS series-4

How To Order Flowstream for a Single Gas Select the appropriate symbols to build a model code: Example: SERIES = FS Material for meter body Anodized Aluminum = E 316 Stainless Steel = I THREAD Type for Threaded Port N = NPT T = SAE B = BSPT Seals P = BSPP ® F Viton = Buna N = B Pipe size in Inches NPT SAE, BSPT, BSPP 1/8 = 1 2 1/4 = FLOW Range IN SLPM FLOW Range IN SCFH Gas Type Air Argon* Carbon Dioxide Helium Nitrogen Oxygen Hydrogen Methane ACCESSORIEs Mounting Brackets Accessory Cables Available for Pin Connector Meters Series Part Number Output Digital Visual Display with Output X2A = 4-20mA...

 Open the catalog to page 4

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.