AM-D-ICS Digital Inductive Conductivity Sensor

AM-D-ICS  Digital Inductive Conductivity Sensor

Introduction

Inductive conductivity measurements from Inductive conductivity sensors (also called toroidal sensors) are used in applications that are susceptible to high fouling/coating, metal corrosion, high conductivity, and percent concentration due to the fact that their sensing elements (electrode coils) don’t come into direct contact with the process. These two matched (identical) coils are encapsulated in PP, PFA or PEEK protecting them from the adverse effects of the process, making them suitable for the following applications:

High conductivity

Fouling /coating (dirty applications)

Percent concentration (e.g. brine, cleaning solutions)

Processes susceptible to metal corrosion

Clean-in-Place (CIP), etc.

 

How Inductive Conductivity Sensors Work

The inductive conductivity measuring transmitter (1) generates an alternating electromagnetic field at the primary coil (5), which induces an electric current in the fluid (4). The intensity of the current depends on the conductivity, which is the total ion concentration in the fluid. The induced current generates another electromagnetic field at the secondary coil (3). The receiver (2) measures the induced current in the coil and thereby determines the conductivity of the fluid.

           

Technical Features

ü Wide Measuring Range :

Aumeascon’s Inductive Conductivity Sensors measure range is up to 2,000,000 microSiemens/cm. A built-in PT1000 resistance temperature detector (RTD) compensates the measured conductivity for changes in process temperature, max temperature is up to 180℃.

 

ü Low Maintenance Design :

The inductive conductivity sensor design eliminates polarization and electrode coating problems that commonly affect conventional contacting electrode-type conductivity sensors.

 

ü Withstands Harsh Environments :

The inductive conductivity sensor is available in sanitary (CIP) flange style and convertible styles in PFA, polypropylene(PP) and PEEK material. Selected sensors can withstand high pressures and temperatures.

 

ü Long life under harsh industrial conditions :

Constructed with erosion and abrasion-resistant PEEK (Poly Ether Ether Ketone), the AM-D-ICS has excellent chemical resistance in all solutions with the exceptions of fluoric acid or oxidizing concentrated acids. For stronger chemical resistance, PFA (Teflon) material is available for applications in hydrofluoric acid and oxidizing concentrated acids (e.g. nitric, sulfuric, oleum).

 

ü Versatile Mounting Styles :

Sensors can be installed using different mounting styles - immersion, insertion, union, and sanitary.

 

ü Accuracy in fouling, coating, and corrosion :

The AM-D-ICS has an accuracy of 5% of reading for any conductivity value (whether measured in rinse water or in concentrated acids).

 

Technical specification

Model	AM-D-ICS Inductive conductivity sensor
Type	Inductive
Cell constant	K=1.98cm-1
Measuring range	2μS/cm-2000 mS/cm
Resolution	0.1us/cm
Measurement accuracy	<measured value±5%
Response time	<2s
Repeatability	＜±2%
Communication Interface	RS485
Working environment	Pressure :0-21Bar
Operating Voltage	7-25VDC
Power consumption	≤0.2W

 

Sensor material option

Material	Working temperature
PP	-10-50℃ or -10-90℃
PFA	-20-50℃ or -20-120℃
PEEK	-20-50℃ or -20-180℃

 

Mainly Application

The inductive conductivity sensor has multi-level range calibration, and the material of the liquid-contacting parts (PP or PFA or PEEK) is highly resistant to chemical corrosion. Widely used, such as: acid, alkali, salt concentration measurement (seawater, electroplating solution, slurry, chemical quality monitoring, mixture separation). The sensor can be used alone with a third-party system solution or as a complete set with the AM-ICM Controller.

 

 

Industry	Application
Metals Finishing and Mining	Plating bath monitoring  Alkaline/caustic wash Rinse water Pickling processes Metals recovery Copper floatation Scrubbers
Chemicals and Refining	Acid production Caustic production Phosphates Fertilizers Detergents Glycerin Moisture detection Scrubbers Wastewater Oil well drilling mud Leak detection Alkylation  Spill detection
Food and Beverage	Brine concentration Desalting Cheese production Caustic peeling Pickle making CIP applications Rinse water control Sugar carbonation
Pulp and Paper	White, black and green liquor Stock washing Washand cooking liquor control Scrubbers Spill detection
Textile Manufacturing	Rinse water Dye baths Bleaching Mercerizing Acid washing Carbonizing and scouring baths
Natural Waters, Lakes, Streams, and Sea Water	Water pollution monitoring Salt intrusion Salinity
Clean Water Treatment	Ion exchange regeneration Reverse osmosis concentrate monitoring Softener regeneration Acid/caustic concentration control
Wastewater Treatment	Acid/caustic concentration control Spill detection
Steam Generation	Boiler blowdown Flue gas scrubbers