The ISM 5.0 from Greyline Instruments accurately measures flow of conductive liquids in full pipes. It installs through a tap in the pipe wall and works on a wide range of pipe sizes. The dual-electrode sensor and continuous auto-zero function provides high accuracy — even at low flow rates. It is electromagnetic with no moving parts, with a simplified hot tap insertion design. It installs in 3- to 72-inch diameter pipes, and has selectable 4-20mA, 0- to 5-volt or 0- to 10-volt outputs, with a 0 to 500 Hz frequency output and scalable pulse output. It can be easily installed in new pipe systems or by hot tap in pressurized pipes with flowing liquids. There are no moving parts, so obstruction to flow and pressure drop is minimal. Installation through a full port ball valve allows easy retraction and reinsertion without shutting down flow. 888/473-9546;

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