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DEFY HARSH ENVIRONMENTS

  • Electroplating Process
    Electroplating Rinse Water Monitoring
  • Cooling towers
    Cooling Tower Water Treatment
  • environmental water sensors
    Brine Concentration
  • Wet Scrubber

MONITOR YOUR CONDUCTIVITY

Controlling conductivity is a necessity in online water quality and process applications to prevent scaling and corrosion, reduce excessive water usage, optimize processes, and ensure quality. These next few paragraphs will teach you about toroidal conductivity and how it differs from traditional contacting methods of measuring conductivity

Conductivity indicates the presence of inorganic dissolved ions like calcium, magnesium, or sulfate, among others. Conductivity is nonspecific, meaning it can only indicate the total amount of ions present, not the amounts of specific ions. However, the relationship between conductivity and concentration is known for many ions. If you already know the chemical makeup of your solution, you can determine the concentration that correlates to the conductivity measurement.

If not controlled, these ions can wreak havoc on industrial equipment and pipes. In other applications, conductivity is measured to ensure quality of a product or purity of water.

TOROIDAL VS. CONTACTING

There are two types of conductivity sensors: contacting and toroidal. Toroidal conductivity is appropriate for applications like cooling tower water control, wastewater treatment, brine analysis, desalination, chemical processing, and other circumstances involving high conductivity or harsh environments. Contacting conductivity sensors are better suited to applications involving very pure water (conductivity less than 50 μS/cm).

HOW TOROIDAL WORKS

Toroidal conductivity sensors consist of two toroidal coils inside an inert plastic case (these toroidal coils are how the “toroidal” sensor gets its name). One toroid emits an electric field, and the other detects a small induced electric current proportional to the number of ions present (this induced current is why toroidal sensors may also be called “inductive” sensors). The two toroids form a transformer whose coils are interconnected by the resistance of the surrounding electrolytic solution.

In contrast to traditional contacting conductivity sensors, toroidal conductivity sensors do not cause polarization, do not become fouled, and rarely require maintenance. Reduced maintenance needs and increased reliability make toroidal conductivity sensors more cost-effective than contacting sensors over time.

BENEFITS OF TOROIDAL

  • No fouling, coating, or contamination of the sensor surface

The key parts of a toroidal sensor are the two toroidal coils. These coils are housed inside of an inert plastic case and therefore never touch the surrounding solution. Therefore, it’s physically impossible for the sensor surface to become fouled, coated, or contaminated, which is a common challenge for contacting sensors. However, note that the center bore must remain clear so that solution can flow through.

  • Improved accuracy due to no polarizing effects

Polarization occurs at current electrodes present in contacting conductivity sensors. Current electrodes, as their name suggests, require current flow to measure conductivity. In solutions with high conductivity, the current must increase to measure at the same voltage level, which causes ions to cluster around the electrode. This cluster of ions is called an ion cloud and causes conductivity readings to appear lower than they truly are.

Toroidal sensors measure conductivity via electric fields, not electrodes (this is why toroidal sensors may also be called “electrodeless” sensors). Therefore, toroidal sensors do not cause polarization and yield more accurate measurements in high conductivity applications.

  • More cost-effective over time

Due to their reduced maintenance requirements, a toroidal sensor used in a high conductivity environment will be more cost-effective than a contacting sensor over-time, despite posing a higher upfront cost.

Sensorex Toroidal Conductivity in the News

NOW WITH MODBUS FOR ROBUST INTEGRATION

The EX2000RS Toroidal Conductivity Transmitter, the newest and most sophisticated transmitter from Sensorex, features one 0/4-20mA output and one Modbus RTU or ASCII output for robust integration.

Click the button below to watch Erin Beacham, Product Manager at Sensorex, go through the setup menu of the EX2000RS.

BUY SENSOREX TOROIDAL INSTRUMENTATION

electrodeless conductivity measurement package
1/4 DIN Toroidal Transmitter

SensoPRO Toroidal Conductivity Monitoring System

$1,663.75$1,717.00

The SensoPRO Toroidal Conductivity Monitoring System delivers reliable conductivity monitoring with toroidal (inductive) sensor technology. The NEW EX2000RS toroidal conductivity transmitter has one 4-20 mA output, an RS-485 serial interface for use with Modbus RTU or ASCII, and can display conductivity, percent concentration, TDS, and salinity.

The durable Noryl-body TCS3020 Toroidal (Inductive) Conductivity / TDS Sensor is resistant to fouling, coating, and corrosion and requires virtually no maintenance.

  • Most reliable conductivity / TDS monitoring
  • Minimal sensor maintenance requirements
  • Displays conductivity, TDS, % concentration, and salinity
  • Robust integration with Modbus RTU or ASCII
  • Sensorex Guarantee: One year limited warranty

This rugged toroidal conductivity monitoring system is appropriate for harsh applications in Cooling Tower Water Treatment, Brine Concentration Measurement, Wet Scrubbers, and other environments involving high conductivity or high levels of dissolved solids.

Click here to watch a video demo of the EX2000RS setup menu.

Can’t find what you’re looking for or need a custom configuration? Contact Us!
Sensorex SKU: TCS3020/P1K/20/TL + EX2000RS

Product Description

The SensoPRO Toroidal Conductivity Monitoring System delivers reliable conductivity monitoring with toroidal (inductive) sensor technology. The NEW EX2000RS toroidal conductivity transmitter has one 4-20 mA output, an RS-485 serial interface for use with Modbus RTU or ASCII, and can display conductivity, percent concentration, TDS, and salinity.

The durable Noryl-body TCS3020 Toroidal (Inductive) Conductivity / TDS Sensor is resistant to fouling, coating, and corrosion and requires virtually no maintenance.

  • Most reliable conductivity / TDS monitoring
  • Minimal sensor maintenance requirements
  • Displays conductivity, TDS, % concentration, and salinity
  • Robust integration with Modbus RTU or ASCII
  • Sensorex Guarantee: One year limited warranty

This rugged toroidal conductivity monitoring system is appropriate for harsh applications in Cooling Tower Water Treatment, Brine Concentration Measurement, Wet Scrubbers, and other environments involving high conductivity or high levels of dissolved solids.

Click here to watch a video demo of the EX2000RS setup menu.

CA ResidentsProp 65 WARNING(S)

TCS3020

  • Measurement Range: 0-2,000,000 uS/cm
  • Temperature Range: 0-105⁰ C
  • Pressure Range: 0 – 150 PSIG
  • Body Construction: Noryl
  • Cable Length: 20 feet (6 meters)
  • Cable Connections: 6 conductor plus shields
  • Process Connection: 3/4″ MNPT for submersion, FC95C custom flow cell (2″) for in-line mounting
  • Warranty: One year limited warranty

EX2000RS

  • Measurement Range: 0.0 μ/cm-2000 mS/cm (auto)
  • Analog Output 1: Isolated DC 0/4 -20mA  corresponding to main measurement, max load 500 Ω
  • Communication: RS-485 Serial Interface, Modbus RTU or ASCII
  • Enclosure: NEMA 4X (IP65) polycarbonate. Weatherproof and corrosion resistant.
  • Mounting Options: Wall or panel mount.
  • Ambient Operating Temperature: 0° C to 50° C
  • Storage Temperature: -20° C to 70° C
  • Temperature Compensation: NTC-30K/PT-1000 Auto or Manual adjustment
  • Power Requirement: 100-240VAC ±10, 50/60Hz, 7W max
  • Warranty: One year limited warranty
  • Dimensions: 3.66” (93mm) x 3.66” (93mm) x 5.2” (132mm); 1/4 DIN
  • Weight: 1.1lb (0.5Kg)
  • One TCS3020 Toroidal (Inductive) Conductivity / TDS Sensor
  • One EX2000RS Toroidal (Inductive) Conductivity Transmitter
  • (In-line mount style) One FC95C 2” Keyed Slip Fit Flow Cell

SPECIFICATION SHEET FOR EX2000RS TOROIDAL CONDUCTIVITY TRANSMITTER

INSTRUCTION SHEET FOR EX2000RS TOROIDAL CONDUCTIVITY TRANSMITTER

SPECIFICATION SHEET FOR TCS3020 TOROIDAL CONDUCTIVITY / TDS SENSOR

CONDUCTIVITY TRANSMITTERS AND CONTROLLERS PRODUCT GUIDE

BOILER WATER TREATMENT APPLICATION NOTE

Conductivity is a key parameter for boiler control, as it directly relates to energy savings. Lack of conductivity control leads to operational problems like scaling inside the boiler, necessitating increased fuel consumption.

WET SCRUBBERS APPLICATION NOTE

Toroidal conductivity sensors and instruments should be used for scrubber control since the sensors are highly resistant to fouling. They are also recommended due to the high conductance of many scrubbing solutions and by-products.

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