IMPROVED FLOWSTREAM® FLOWMETERS WITH FIELD-SELECTABLE MULTI-GAS CAPABILITY
Description
Universal Flow Monitors, Inc. introduces a new and improved FlowStream® OFM Series of mass flowmeters for fast and accurate measurement of nonaggressive gases. The meters are designed for blanketing gas, purge gas, shielding gas, leak detection and other applications in industrial, medical and laboratory settings.
Field selectability of multiple gases is a new feature of FlowStream® meters for measuring mass flow rate of clean and dry gases. A user can easily program a FlowStream® meter for precise and reliable measurement of air, argon, carbon dioxide, helium, hydrogen, methane, nitrogen or oxygen. A gas is selectable by pushing buttons on the meter face. The span of the unit’s transmitted signal can be changed with push buttons as well.
Totalizing capability is now offered to increase a FlowStream® meter’s ability to measure, monitor and control the total amount of gas used in a process. The meters are available with programmable set points for flow as standard. A scaled pulse output for totalization is a new selectable option. Bidirectional and battery-operated units are now available.
A rapid response time of 5 milliseconds (ms) is another new selectable option for immediate detection of flow fluctuation in robotic applications and other automated systems. FlowStream® meters provide a fast 50 ms response as a standard feature. The 5 ms response time is user selectable by pushing buttons on the meter face.
FlowStream® meters can now read full-scale flow rates as low as .5 (five-tenths) SCM up to 1000 SLPM. The meters also can now accommodate operating pressures as high as 125 PSI. NIST traceable accuracies are +/- 1 percent for the majority of gases in the FlowStream® group and +/-2 percent for nearly all other gases in the group.
FlowStream® OFM Series mass flowmeters are rugged, cost-effective instruments that employ Laminar Flow Element technology. The meters are NEMA Type 4 watertight construction for use in wet areas. They are rated EMI immune for heavy industrial use and are electrically shielded for use near welders, motors and transformers. Intrinsic safety, including an appropriate barrier, is offered as an option.
FlowStream® meters are easy to use and simple to install. They do not require straight pipe runs and can be mounted in any orientation. They feature built-in alarm switches and are available with LCD readout displays for flow, pressure, temperature and total. Output options include current, voltage and frequency.
Universal Flow Monitors, Inc., located in Hazel Park, Michigan, has manufactured flow meters for a variety of industries for more than 20 years.
Field selectability of multiple gases is a new feature of FlowStream® meters for measuring mass flow rate of clean and dry gases. A user can easily program a FlowStream® meter for precise and reliable measurement of air, argon, carbon dioxide, helium, hydrogen, methane, nitrogen or oxygen. A gas is selectable by pushing buttons on the meter face. The span of the unit’s transmitted signal can be changed with push buttons as well.
Totalizing capability is now offered to increase a FlowStream® meter’s ability to measure, monitor and control the total amount of gas used in a process. The meters are available with programmable set points for flow as standard. A scaled pulse output for totalization is a new selectable option. Bidirectional and battery-operated units are now available.
A rapid response time of 5 milliseconds (ms) is another new selectable option for immediate detection of flow fluctuation in robotic applications and other automated systems. FlowStream® meters provide a fast 50 ms response as a standard feature. The 5 ms response time is user selectable by pushing buttons on the meter face.
FlowStream® meters can now read full-scale flow rates as low as .5 (five-tenths) SCM up to 1000 SLPM. The meters also can now accommodate operating pressures as high as 125 PSI. NIST traceable accuracies are +/- 1 percent for the majority of gases in the FlowStream® group and +/-2 percent for nearly all other gases in the group.
FlowStream® OFM Series mass flowmeters are rugged, cost-effective instruments that employ Laminar Flow Element technology. The meters are NEMA Type 4 watertight construction for use in wet areas. They are rated EMI immune for heavy industrial use and are electrically shielded for use near welders, motors and transformers. Intrinsic safety, including an appropriate barrier, is offered as an option.
FlowStream® meters are easy to use and simple to install. They do not require straight pipe runs and can be mounted in any orientation. They feature built-in alarm switches and are available with LCD readout displays for flow, pressure, temperature and total. Output options include current, voltage and frequency.
Universal Flow Monitors, Inc., located in Hazel Park, Michigan, has manufactured flow meters for a variety of industries for more than 20 years.
Specs
General Instrument Specifications • Flow Ranges: 500 SCCM full scale to 1,000 SLPM full scale, • 1 SCFH full scale to 2,100 SCFH full scale • Turndown Ratio: 100:1 • Maximum Operating Pressure: 100 PSIG • Burst Pressure: 200 PSIG • Pressure Effect on Accuracy: Less than 0.03% full scale / PSI (See Note 1) • Maximum Operating Temperature: 176 °F (80 ºC) • Minimum Operating Temperature: -13 °F (-25 ºC) • Temperature Effect on Accuracy: Less than 0.03% full scale / °F • Maximum Pressure Drop: Normal 2 PSI, Max 3.5 PSI (Individually listed under Multigas Flow Selection chart by port size and fl ow rate) • Process Connections: 1/4”-3/8”-1/2”-3/4” Available in NPT, BSPT, BSPP and SAE • Wetted Parts Sensors: Glass-fi lled nylon, alumina-based ceramic, silicon, gold, epoxy • Flow Body Internals: Anodized aluminum or 300 series stainless steel, Viton® or buna n seals • Enclosure Rating: Type 4 • Display: 4-digit LCD digital display, 0.35” high • Approvals: CE, CSA, Intrinsic Safety (all classes and divisions) with proper zener barrier. Electrical Specifications: • Accuracy (Including Linearity and Repeatability) • Flow: ± 1% of full-scale for fl owmeters sized from 15-566 SLPM (31-1200 SCFH) of Air ± 2% of full-scale for fl owmeters sized for lower than 15 SLPM (30 SCFH) of Air ± 2% of full-scale for fl owmeters sized for higher than 566 SLPM (1201 SCFH) of Air • Pressure: ± 1 PSI (See Note 2) • Temperature: ± 3 °F • Totalizer: ± 0.25% of full-scale (in addition to fl ow accuracy) • Output Signal Analog: 4-20 mA (2-wire loop powered) 0-5 V, 0-10 V, 1-5 V, 2-10 V 0-5 V Bi-directional (2.5 V = 0 fl ow) • Frequency: 0-1000 Hz, 200-1200 Hz 0-3V signal amplitude • Pulse: 1,250-5,000 pulses/minute, user selectable 0-3V pulse amplitude 2 msec pulse width • Response Time: user selectable 5 msec or 50 msec (to 63% of step change) for analog outputs, 50 msec (to 63% of step change) for frequency and pulse outputs • Alarms: 2 independent open-collector outputs (high/low fl ow rate) with corresponding LEDs. Open-Collector Rating 30VDC at 50 mA • Electrical Connection: 4- or 7-conductor shielded cable with pigtail • Supply Voltage: 10-30 VDC is standard 12-24 VDC for Intrinsically Safe 7.2-9 VDC for battery-operated units (See Note 3) • Supply Current: 22 mA @ F.S. fl ow (includes over-range) for 4-20 mA loop-powered transmitters 5 mA for voltage, frequency, and pulse outputs 3.5 mA for battery-operated units (See Note 3)