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Yokogawa ADMAG CA Magnetic Flowmeters

Yokogawa ADMAG CA Magnetic Flowmeters
Yokogawa ADMAG CA Magnetic Flowmeters


The ADMAG CA magnetic flowmeter adopts a system to pick up the electromotive force generated in a fluid by electrodes provided outside a ceramic pipe through the capacitance of the pipe. In addition, the flowmeter employs a prominent high-frequency excitation method that reduces flow noise in low conductivity fluid.

ADMAG CA magnetic flowmeter is excellent at measurement in ultra-low conductivity fluids down to 0.01 microS/cm, adhesive fluids, or slurry fluids. Since ADMAG CA employs a non-wetted electrode construction, picking up the signal voltage by electrode plates provided outside a ceramic pipe through the capacitance of the pipe.

Features: ADMAG CA Series Capacitance Magnetic Flowmeters
Ultra-low conductivity fluid measurement
  Capacitance type electrodes and very high impedance head amplifier of ADMAG CA make ultra-low conductive fluid measurement possible. High-frequency excitation reduces the effects of flow noise.
Adhesive fluid measurement
  Non-wetted electrodes solve the measurement problem of sticking insulating material.
Slurry fluid measurement
  Non-wetted electrodes are free from electric noise resulting from slurry colliding with the electrodes. Stable measurement in highly concentrated slurry fluids is possible.
High accuracy, +/- 0.5% of flow rate for ultra-low conductivity
  For measurement of fluids with minimum conductivity of 0.1 microS/cm.
  No adhesion, corrosion, or clogging greatly reduces maintenance costs. ADMAG CA is ideal for processes that used to need regular cleaning.
150 mm and 200 mm sizes
  ADMAG CA is the first* ceramic capacitance type magnetic flowmeter in the world that supports 150 mm and 200 mm sizes, for even greater flexibility in applications.
Downloads for ADMAG CA:

General Specifications


Specifications: ADMAG CA Series Capacitance Magnetic Flowmeters
Size (mm) 15-100 150, 200
Excitation High frequency
Flow span (m/s) 0.5-10
Min. fluid conductivity (µS/cm) 0.01 1
Protection IP67, NEMA4X, JIS C0920 watertight type
Hazardous area classification FM, CSA, TIIS(JIS) -
Accuracy ±0.5% of flowrate (0.1 µS/cm min.) ±1% of flowrate (1 µS/cm min.)
Repeatability ± 0.1% of flowrate (1 mm/s min.)
Lining material Ceramic
Electrode Construction Non-wetted plate electrodes installed on outside of ceramic tube
Fluid pressure -0.1 MPa to 4 MPa: Ceramic lining size 50 mm or smaller
-0.1 MPa to 2 MPa: Ceramic lining size 80 mm or greater
Fluid temperature -10 deg C to 120 deg C
Process connection JIS 10K/20K/F12, ANSI 150/300, DIN PN10/16: Wafer
Output signal 4-20 mA DC, pulse, or alarm (transistor contact: 30 V DC, 200 mA max.)
Function Variable damping time (1 sec min.), self-diagnostics, loop test, BRAIN communication
Indicator 7-seg. LCD with back light
Power supply voltage 80-264 V AC/47-63 Hz or 100-130 V DC, 20.4-28.8 V DC
Maximum power consumption 14 W


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