Compressed air mass flowmeter
A thermal mass flowmeter from AMS Instrumentation & Calibration can detect 6 to 600 SFPS (1.8 to 180 SMPS) in air or nitrogen. By inputting the pipe I.D., the flowmeter provides selectable mass flow units such as SCFM, lbs/hr and Nm3/h.
Accuracy is +1% of reading +0.5% full scale, with a repeatability of +0.5% of reading.
The 4-20 mA output is range adjustable from a 10:1 to 100:1 turndown.
Voltage output is also available and selectable in 0-10 Vdc, 0-5 Vdc, or 1-5 Vdc.
A new package design allows easy access to the ST98B-CA Series termination points and communication ports; the flowmeter comes in integral and remote configurations. The series is supplied in a weather-resistant NEMA 4X Enclosure rated for Division 2 areas. An RSserial port interfaces with an optional Communicator, a computer, or any ASCII terminal. The flowmeter sensing element is made up of two all-welded 316 stainless steel thermowells that protect its platinum resistance temperature detectors (RTDs). One RTD is heated relative to the reference RTD, and the temperature difference between the two is related to the process mass flow rate. The standard flow elements have adjustable insertion lengths of 1 to 12 inches. The process connection is a three-quarter inch male NPT with a Teflon ferrule rated to 150 psig [10 bar (g)], 200°F (93°C).
AMS Head Office is moving. From 8 July the new address will be
Unit 20, 51 Kalman Drive, Boronia
Victoria 3155.(03) 9017 8225
17-Jun-2006