Thiết bị đo lưu lượng  Tokyo Keiso  NLZ Series Metal Tube Type Variable Area Flowmeter Model : NLZ1111-ZZRF2-1**2/AT/AC/Z  Tokyo Keiso Tag No. : 40-FG-7001-17  same as per Old Mfg No. F20-404802-2

The NLZ series is a compact, metal tube type variable area flow meter with a face-to-face dimension of 250 mm.
This series consists of NLZ1000 (general type and intrinsically safe type) and NLZ2000 (flameproof type). Each model has various types including a local indication without power supply type and a field bus type. The NLZ series can measure flow rates of any processes and devices.
The standard material for the wetted parts is 316L stainless steel.
Fluororesin lining is also available for highly corrosive fluids. As optional indicator and transmitter functions, alarm output, 4–20 mA DC output, HART^® communication, and FOUNDATION^® Field bus can be added. The NLZ series has acquired JPN, ATEX, IECEx, NEPSI, and KOSHA explosion proof certifications.