MP5™ Online Chlorine Analyzer for PVC-Tee Deployment


The Halogen MP5™ mid-flange housing (D-H1MF-P) allows the sensor to be inserted into a pipe, providing online near-time monitoring. The MP5™ is unaffected by flow or pressure and the PVC-Tee installation option allows for installing a bypass for fast yearly maintenance of the wear parts in the SensiCLĒNE™ system.

The MP5™ is the only chlorine analyzer certified for NSF-61 use in drinking water with no required waste stream and this deployment option takes full advantage of that approval.  The small footprint and available cellular telemetry option make this deployment a good choice for remote monitoring of grid hotspots, or end-of-line residuals reporting.

Unique Features

  • 5 Parameters in a single online near-time analyzer
    • Free Chlorine
    • pH
    • Temperature
    • Conductivity
    • Rapid Response ORP™*
  • Self-cleaning & low maintenance
  • No membranes or electrolyte
  • NSF-61: No waste stream required
  • Factory-calibrated, drift resistant
  • Unaffected by flow or pressure. Even dry pipes won’t ruin calibration.
  • Available display equipped with (4) 20mA and MODBUS RTU. Other communication protocols are available upon request.
  • 24 VDC or 90 to 240 VAC operation

Why Use the MP5™ in a PVC-Tee Deployment?

Flow Independent Measurement 

The sensor generates its own flow. Even relatively still tanks can be analyzed for water aging, nitrification, etc and cooling tower troughs can be monitored. The integrated pump creates a fixed velocity across the electrodes, which improves sensitivity while lowering the Signal-to-Noise Ratio.

No Waste Stream

Approved for NSF-61 usage, the MP5™ can be installed directly into a standard PVC-Tee in a drinking water pipe using the adapter sleeve and a collar in either PVC or Stainless options.

Once installed, operators gain accurate reporting of the water inside the tank or trough without having meters of sample tubing between the source and the analyzer, enabling faster, better decisions based on near-time data.  

Because there’s no waste stream, there’s no non-revenue water wasted for testing, making the PVC-Tee deployment for the MP5™ Chlorine Analyzer a great option for remote and off-grid reservoir monitoring

SensiCLĒNE™ Patented Self-Cleaning Technology

A patented electrochemical cleaning method called SensiCLĒNE™  resists polarization and adsorption of organics.  Motivated by the flow from the pump, captive polymer cleaning beads continuously abrade the sensor. This keeps the electrode surfaces, including the pH sensor, free from buildup, scaling, and biofouling. Solid metal electrodes last the life of the system. 

Easy Monitoring

A local display provides onsite viewing of parameters for up to 5 separate MP5™ units and a cellular telemetry option can cache and report at programmed intervals for off-grid monitoring.

Ease of Service

The annual wear-parts maintenance takes only minutes and does not affect calibration. Halogen’s removal tool (and available duo-drive adapter) makes installation quick and easy.

Manuals for Drinking Water & Wastewater Applications

Installation Manual

D20 Display/Controller & Sensor for use in Drinking Water and Wastewater applications.

Operating Manual

MP5 Online Chlorine Analyzer Manual (2024.06.12-v4.02) for use in Drinking Water and Wastewater applications.

Installation Manual

Installation Manual for MP5™ D-H1WT-P chlorine analyzer in Wet Tap deployment with remover tool  

Installation Manual

Download the Wear Parts Replacement manual for the SensiCLĒNE™ self-cleaning technology in MP5™ Analyzers

Monitor 5 parameters directly in drinking water pipes at flows from 0- 4m/s & up to 10 bar/150 psi. A retractor/removal tool is available (pictured at left). Wet Tap (or Hot Tap) housing can be deployed as a retractable NSF-61 in-pipe Chlorine analyzer.

The mid-flange housing (H1MF-P) and the associated 2″ adapter sleeve and collar kit make for an easy sidestream NSF-61 PVC Tee deploymentThis configuration fits an OTS 2” PVC Tee and requires a  threaded adapter (PT-01). 

The low-flange model (H1LF-P) adapts for side-stream monitoring to replace an existing control-board-mounted sensor or can be submerged in a clearwell. Submersible deployments use a standard 1” PVC Boom Mount. Flow Cell optional. 


Kit with flow-cell deployment (MKIT) and display controller along with a wall mounting plate,  provides a drop-in upfit sensor replacement.

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Battery power and remote telemetry for an MP5™ deployment. Use for outer grid monitoring, dead-ends, or other remote implementations.

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Leverage the dependability and low maintenance of the MP5™ for remote tank monitoring with battery power and remote telemetry.

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Retractable remover kit for MP5™ wet-tap analyzer (H1WT-P) in water pipes allows for maintenance without interrupting flows.

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This deployment uses a water-proofed low-flange MP5™ (H1LF-P), a sourced boom and harness, or can simply be placed in a tank or trough.

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Combine a mid-flange MP5™ (H1MF-P) with an adapter sleeve—in PVC or Stainless steel—sized for deployments in a 2″ PVC tee.

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Fits low-flange MP5™ (H1LF-P) and adapts for side stream and control board usage based on which flow cell type  is ordered. 

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Both 24V DC (DC20-L) and 120-240V AC (DC20-H) versions feature (4) 4-20 mA analog outputs, and an M-12 Connector, 3 relays, SD card. 

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Halogen Systems Inc's Chlorine Analyzers and Controller

Have Questions? Get Answers.

If the technologies and benefits listed above raise any questions, you may find the answer you’re looking for in the FAQ or Technologies pages. 

Our contact page also allows you to reach out with a specific question and we’ll get back to you as quickly as possible.