Adjustable Insertion Electromagnetic Flow Meter

The complete lack of moving parts of this insertion flow sensor is the source of its reliability. There is no rotor to stop turning in dirty water and there are no bearings to wear out. Brass and stainless steel models withstand a variety of temperature, pressure, and chemical conditions. Reverse flow output and immersibility are optional. A rapidly reversing magnetic field is produced in the lower housing. As the fluid moves through this field, a voltage is generated that is measured and translated into a frequency signal proportional to flow rate. This square wave signal can be sent directly to a PLC, control or converted to 4 to 20 mA with the FTB700-T shown below (optional). A modular system of electronics can be attached directly to the flow sensor or remotely mounted. The FMG900 series can provide full indication of rate and total with the (optional) FTB700-D or just a 4 to 20 mA output with the (optional) FTB700-T blind transmitter. The adaptor fitting of the standard unit is a male NPT, and can be directly threaded into ordinary saddles or threaded weld fittings. The hot tap versions include an isolation valve, allowing hot-tap installation, or installation and removal under pressure. Hot tap units include the appropriate installation valve.

SPECIFICATIONS
Power: 12 to 24 Vdc, 250 mA
Flow Range: 0.28 to 20 ft/sec (0.08 to 6.09 m/sec) Connection Size
Standard Units: 1½ NPT male, hot tap models, 2 NPT male
Ambient Temperature: -17 to 72°C (0 to 160°F)
Fluid Temperature: 0 to 93°C (32 to 200°F)
Maximum Pressure: 13.8 bar (200 psi)
Minimum Conductivity: 20 microSiemens/cm
Shaft and Fitting: 316 SS or brass (depending on model)
Electrodes: Hastelloy^®
Electrode Cap: PVDF
Housing: Cast powder-coated aluminum
Valve: Bronze or SS (depending on model)
O-Ring: EPDM
Accuracy: ±1% of full scale
Output: Square wave pulse, opto isolated, 550 Hz @ 20 ft/sec 6 mA max, 30 Vdc forward flow standard (reverse flow optional)
Empty Pipe: Defaults to zero flow