Q45H/65 Chlorine Dioxide Transmitter

Brand: Analytical Technology Inc

ATI’s Chlorine Dioxide Transmitter is designed for on-line monitoring and control of industrial disinfection systems. 

Chlorine Dioxide is a powerful disinfecting agent used to treat potable water, cooling water, and food processing wash water.
 
To ensure proper disinfection while minimizing disinfection by-products, the concentration of disinfectant must be precisely maintained. 

The Chlorine Dioxide system features a unique membrane-covered polarographic sensor that does not require the addition of chemical reagents. 

All that’s needed is a constant flow of water across the face of the sensor, and this is provided by a simple constant-head flowcell.

The sample water is unaffected by the measurement and can be safely discharged back into the process. 

The Q45H system has no moving parts, so there are no pumps or motors that burn out or tubing breaks that create maintenance nightmares. 

All normal maintenance items are included with each system. 

This model system responds to chlorine dioxide with minimal interference from any residual chlorine that may be present.
Features
  • Low maintenance membraned sensor
  • Loop-Powered or battery-operation
  • External 5-17 VDC version for solar power applications
  • Interference-free measurement
  • Measurement from 0-200 ppb to 0-200 ppm
  • Constant-head flowcell simplifies operation
  • Sealed flowcell option for recirculation systems
  • Large, easy-to-read LCD display
  • Clear, menu-driven user interface
  • NEMA 4X (IP-66) enclosure
  • Wall or pipe mounting bracket standard
  • Built-in PID controller

Specifications

Display Range

  • 0-200 ppb, 0-2.000, 0-20.00, 0-200.0 ppm or mg/L

Accuracy

  • +0.5 % of Selected Range or 0.02 ppm

Repeatability

  • 0.3 % of Selected Range or 0.01 ppm

Sensitivity

  • 0.05 % of Selected Range

Linearity

  • 0.1 % of Selected Range

Temperature Drift

  • 0.1 % of Span/°C

Sensor Type

  • 2E Amperometiric (Polargraphic) Membraned Sensor

Temperature Input

  • Pt100 in Sensor for Temperature Compensation

Power

  • Battery unit: Two AA Alkaline batteries
  • External DC: 5-17 Vdc, 10 mA Max.
  • 2-Wire unit: 17-30 Vdc, 25 mA Max.

Analog Outputs

  • 2-Wire unit: Single 4-20 mA DC, 450 ohms Max.
  • Battery unit: Two 0-2.5 Vdc, 50K ohms minimum
  • External DC: Two 0-2.5 Vdc, 50K ohms minimum

Output Isolation

  • 600 V Galvanic Isolation

Enclosure

  • NEMA 4X (IP-66) Polycarbonate, V-0 Flammability

Mounting Options

  • Wall or Pipe Mounting Bracket Supplied

Conduit Entries

  • Two PG-9 Cord Grips, 0.16-0.31” Diameter Cable

Ambient Temperature

  • Operating: -40° to + 60° C
  • Storage: -40° to + 70° C

Ambient Humidity

  • 0-95 %, Non-Condensing

Size

  • 4.4”H x 4.4”W x 3.5”D (111 x 111 x 90 mm)

Weight

  • 2-Wire or External DC unit: 1 lb (0.45 Kg)
  • Battery unit: 2 lbs (0.9 Kg)

Certifications

  • CE marked to BS EN 61326-1:2006 Standard
  • UL and CSA General Purpose

Chlorine Dioxide Sensor

  • Membrane-Covered Amperometric (Polarographic)

Optional pH Sensor

  • pH Sensor, With or Without Preamplifier

Sensor Materials

  • PVC & 316 Stainless Steel

Sensor Response Time

  • 90 % in 60 Seconds

Sensor Temperature Limits

  • 0-50° C

Sensor Pressure Limits

  • 0-50 psig

Sensor Cable

  • 25 ft. (7.5 m) Standard

Sensor Flowcell

  • Clear Acrylic Constant-Head Overflow or Sealed Acrylic Flowcell

Sensor Sample Flow Rate

  • 7 - 15 GPH (0.5 - 1.0 LPM)

  • Potable Water Treatment
  • Food Wash Water
  • Poultry Processing
  • Wastewater Treatment
  • Cooling Towers
  • Paper Mills

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