I. Product Introduction:

       YYDG-J low conductivity electromagnetic flowmeter adopts dual-frequency excitation drive technology, with two mode options: 6.25/75HZ and 6.25/160HZ. Low frequency ensures zero point stability, while high frequency can effectively overcome noise interference caused by slurry, low conductivity and other media. Slurry type electromagnetic flowmeter is a high-precision instrument based on Faraday electromagnetic induction principle for measuring conductive liquids, widely used in metallurgy, petrochemical, pharmaceutical, food, papermaking, thermal power and water treatment industries.  

       Slurry type electromagnetic flowmeter: dual-frequency excitation drive technology, maximum excitation frequency 160HZ; rich self-diagnosis functions: such as empty pipe, broken excitation, etc.; noise suppression and anti-interference functions for more stable flow measurement; minimum conductivity for low conductivity media application can reach 1us/cm.

II. Product Features:

       With parameter wizard function for quick and accurate product setting;

       With wiring self-check diagnosis function to prevent wiring errors;

       Free switching between Chinese and English menus.

       Rich data recording functions, including power on/off records, parameter modification records, historical data records, etc.;

       Noise suppression and anti-interference functions;

       With rich self-diagnosis functions, such as empty pipe, broken excitation, etc.;

       Sensor magnetic field simulation, high-frequency electromagnetic sensor, matched with dual-frequency excitation technology to achieve stable measurement of slurry and low conductivity;

       Flexible product iteration and backward compatibility;

       Minimum conductivity for low conductivity media application can reach 1us/cm.

III. Industry Applications:

       Water supply and sewage treatment

       Chemical and pharmaceutical industries

       Food and beverage industry

       Mining, concrete and cement industries

       Pulp and paper industry

       Metallurgical industry

IV. Product Parameters: 

• Pipe Diameter	DN15~DN200
  Accuracy Class	0.2 class, 0.3 class, 0.5 class
  Measurable Flow Velocity Range	0.005m/s~12 m/s
  Power Supply Type	85V~265V.AC; 20.4V~28.8V.DC
  Input/Output	(4~20)mA.DC, frequency output, relay output
  Communication Method	RS485, HART
  Explosion-proof Parameters	Exd eia llCT4~T6 Gb, Exdb ll CT6 Gb, Extb lllC T80°C Db
  Lining Material	DN15-DN200: PFA/F46; DN32-DN200: F4; DN50-DN200: Neoprene, Polyurethane
  Protection Class	Integrated type: IP67; Split type: Sensor IP68, Converter IP67
  Structure Type	Flanged type, Wafer type, Sanitary clamp type
  Electrode Material	316L, HC, Hb, Ti, Ta, Pt, Tungsten carbide, etc.
  Flange and Wrapper Shell Material	Carbon steel, Stainless steel
  Excitation Method	Excitation frequency: 6.25 Hz/75Hz, 6.25 Hz/160Hz; Excitation current: 200mA, 250mA
  Minimum Measurable Conductivity	1us/cm
  Display	Dot matrix LCD: 128x64, yellow-green backlight
  Display Information	Instantaneous flow, forward cumulative flow, flow velocity, reverse cumulative flow, output frequency, output current, flow percentage, converter temperature, time and date, flow curve, etc.
  Display Language	Supports both Chinese and English display modes
  Unit Setting	Supports cumulative units: m3, L, t, kg, gal, lb, ft3; Time units: s, min, h, day; Flow units can be any combination of the above units
  Buttons	Infrared buttons (no need to open the cover)
  Shell Material	Aluminum alloy
  Shell Coating	Anti-corrosion polyurethane, blue/white
  Electrical Interface	M20x1.5, G1/2, NPT1/2 internal thread, φ10 cable hole, other connection forms can be customized
  Ambient Temperature	-40°C~+60°C