Wetted Parts: 303 & 302 Stainless Steel, FKM Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Silicon, Glass. Supply Current: 35 mA typical current draw 100 mA available supply recommended Supply Voltage: 7 to 30 Vdc (15 to 30 Vdc for 4 to 20 mA output) The primary trade-off for response time is signal noise A variable register allows response time to be field adjustable to a certain extent via RS232 communications. Response Time: 10 ms typical default response time for 63.2% of a step change. These flowmeters are also available in a portable version for use in the field (-B models). It is also possible to multi-drop up to 26 units on the same serial connection to a distance of 125'. Pressure ratings of 3,000, 6,000, 8,000, and 10,000 psi available for most sizes. Operate over a wide range of temperatures. Volumetric flow, mass flow, or absolute pressure, and temperature can be viewed or recorded through the RS232 connection. For use with unique Hoffer high pressure 316/316L or carbon steel mating flange kits, supplied complete with SAE J429 Grade 8 high yield strength bolts and O rings. The gas select feature can be adjusted from the front of the keypad or via RS232 communications. Standard units include a 0 to 5 V output (4 to 20 mA optional) and RS232 communications. This standardized flow rate is commonly called the mass flow rate and is reported in units such as standard cubic feet per minute (SCFM) or standard liters per minute (SLM). Separate absolute temperature and pressure sensors are incorporated and correct the volumetric flow rate to a set of standard conditions. This, along with the viscosity of the gas, is used to accurately determine the volumetri flow rate. Inside this region, the Poiseuille equation dictates that the volumetric flow rate be linearly related to the pressure drop along a fixed distance of the LFE. A laminar flow element (LFD) insdie the meter forces the gas into laminar (streamlined) flow. The FMA-1600A Series mass and volumetric Omega's flow meters use the principle of differential pressure within a laminar flow field to determine the mass flow rate.
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