Q45H/62-63 Residual Chlorine Transmitter

Brand: Analytical Technology Inc

ATI’s Residual Chlorine Transmitter is designed for on-line monitoring and control of chlorination systems. 

It is available in two versions: a Free Chlorine Monitor for drinking and cooling water systems, and a Combined Chlorine Monitor ideally suited for “chloraminated” drinking water. 

The Combined Chlorine System can also be used in wastewater effluents where sufficient ammonia is present prior to chlorination to result in a predominantly monochloramine residual. 

Unlike on-line colorimetric and most amperometric monitors, Q45H systems utilize a membrane-covered polarographic sensor that does not require the addition of chemical reagents. 

That means no more costly reagents to purchase or flow cells that require frequent cleaning. 

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

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. 

The Q45H Chlorine Monitoring System is easy to operate, requires minimal maintenance, and will not eat a hole in your operating budget with ongoing reagent requirements or component replacement costs.
Features
  • Free or Combined Chlorine monitoring
  • Loop-powered or battery operation
  • External 5-17 VDC version for solar power applications
  • Reagent free measurement
  • pH compensation for operation to pH of 9.5
  • Measurement from 0-200 ppb to 0-200 ppm
  • Constant-head flowcell simplifies operation
  • 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 Amperometric (Polargraphic) Membraned Sensor

Temperature Input

  • Pt100 in Sensor for Temperature Compensation

Power

  • 2- Wire unit: 17-30 Vdc, 25 mA Max.
  • Battery unit: Two AA Alkaline batteries
  • External DC: 5-17 Vdc, 10 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 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
  • RO Membrane Protection
  • Chloramination Systems
  • Cooling Towers
  • Wastewater Treatment
  • Food Wash Water

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