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Technical white papers, product data sheets, and documentation for water quality professionals.
Quick Answer
What technical resources does Halogen Systems provide?
This resource library includes technical articles, white papers, case studies, product manuals, brochures, and calibration guidance for Halogen amperometric chlorine analyzers — covering drinking water, distribution, Legionella control, monochloramine, and remote monitoring applications.
Blog
Product launches, technical deep-dives, and water treatment insights from the Halogen engineering team.
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Case Studies
Real-world deployments from utilities across the United States.
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Whittier, California
City of Whittier, CA
From one trial to four booster stations: Whittier reports more than two years of MP5 experience, no calibrations since installation, and reagent-free chlorine monitoring that keeps operator visits short.
Maui, Hawaii
County of Maui, HI
Maui describes MP5 groundwater monitoring at a remote site with low and variable sample pressure. Following the June 2024 pilot, the unit became a permanent part of operations.
Newport News, Virginia
Newport News Waterworks, VA
The Harwood's Mill evaluation compared the MP5 with a Hach CL17 and grab samples. The operations team reported stable readings and reduced maintenance checks during the evaluation.
Orange County, Florida
Orange County Utilities, FL
Orange County tested MP5 sensors with cellular monitoring across three treatment processes. Staff reported that trips for daily or weekly grab samples were largely eliminated, while periodic calibration checks continued.
Orlando, Florida
Iron Bridge Regional Water Reclamation Facility, FL
Iron Bridge evaluated the historical MP5T in a parallel loop alongside its existing sensor array. The source reports no calibration or maintenance during the initial three months of reclaimed-water testing.
Palm Beach County, Florida
Palm Beach County Water Utilities, FL
Instrumentation technician Vinny Guiel describes three MP5 units across water and wastewater facilities, reporting reliability, reagent-free operation and easier maintenance.
Lakewood, California
City of Lakewood, CA
Lakewood evaluated a flow-cell MP5 alongside a Hach CL17 and later installed a wet-tap sensor at a well. The wet-tap installation alerted operators to a low chlorine residual and enabled a response.
United Kingdom
Compton Durville, Wessex Water, UK
The Compton Durville report evaluates MP5 monitoring in high-iron borehole water and investigates fouling of the incumbent chlorine sensor. The MP5 was used for independent monitoring, not dosing control.
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Gainesville, Georgia
Sensus AMI Integration, Gainesville, GA
The Gainesville account describes continuous chlorine monitoring using Halogen sensors connected through the Sensus FlexNet network, supporting distribution-system visibility and demand-based flushing.
Technical Guidance
Field guides, calibration procedures, and technical notes for operators and engineers.
monitoring
Your Chlorine Sensor Is Lying to You — Here's 65 Days of Proof
A compelling data-driven look at how conventional chlorine sensors drift and misreport over time, with 65 days of side-by-side comparative data.
By Halogen Systems Inc.
Sensor AccuracyData AnalysisCalibration Drift
science
Technical Guidance Note: DPD and Total Chlorine Calibration
Detailed technical guidance on calibrating total chlorine measurements using DPD reference methods. Covers procedure, tips, and common errors. Version 1.2.
By Halogen Systems Inc.
CalibrationTotal ChlorineDPDTechnical Note
menu_book
Simple Guide: DPD and Total Chlorine Calibration
A straightforward field guide for operators performing DPD-based total chlorine calibration. Written for technicians — plain language, step by step. Version 1.0.
By Halogen Systems Inc.
CalibrationField GuideTotal ChlorineOperators
tune
Calibrating Total Chlorine with Free Chlorine
Explains the relationship between total and free chlorine measurements and how to use free chlorine references to calibrate total chlorine sensors accurately.
By Halogen Systems Inc.
CalibrationFree ChlorineTotal ChlorineMethodology
troubleshoot
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MP-5F / D20 Troubleshooter (all MP5 generations)
An interactive diagnostic tree that walks you through controller, connection, sample delivery, and calibration to a resolution or the right escalation. Access-code required.
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Guides & Interactive Tools
Download our buyer's guide, ROI calculator, technical reference, technology selector, and comprehensive chlorine analyzer guide — free with registration.
Published Articles
Featured in WaterOnline, AWWA Opflow, and other industry publications.
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Investigating Chlorine Monitoring Options for Water Conservation and Safety
How the City of Lakewood, CA solved its water waste and infrastructure challenges with a new in-pipe chlorine sensor. Published in AWWA Opflow, April 2025.
By Michael Santillan, Derwin Dy, Derek Nguyen & Michael Silveri
AWWA Opflow — April 2025
Case StudyLakewood CAWater Conservation
article
Less Waste, Easier Maintenance — Why You Need to Look at Amperometric Sensors
A comprehensive comparison of amperometric sensor technologies including membrane, bare electrode, and direct-insertion designs. Covers NSF-61 certification, flow independence, and self-cleaning systems.
By Michael Silveri
Water Environment Technology — March 2022
TechnologyAmperometricSensor Comparison
article
Streams of Information — A Breakthrough Sensor for Ballast Water Treatment
How Halogen Systems developed cutting-edge TRO sensor technology through a Navy SBIR program, leading to commercial deployment on 1,200+ ships worldwide.
By Office of Naval Research
ONR SBIR Success Story
MaritimeNavy SBIRBallast Water
article
Florida Utility Saves 2,080 Man-Hours With Just 5 Sensors
How a major Florida utility dramatically reduced labor costs and improved water quality monitoring by deploying five Halogen MP5 sensors across their distribution system.
By Halogen Systems
WaterOnline — March 2026
Case StudyLabor SavingsDistribution
article
Your Chlorine Sensor Is Lying to You — Here's 65 Days of Proof
A data-driven investigation showing how conventional chlorine sensors drift and misreport over time, with 65 days of side-by-side comparative data proving the accuracy gap.
By Halogen Systems
WaterOnline — March 2026
Sensor AccuracyData AnalysisCalibration Drift
article
Water Quality Data Now Available Through SENSUS AMI Systems From Anywhere
How Halogen Systems integrates with Sensus (Xylem) AMI infrastructure to deliver real-time water quality data alongside meter reads — accessible from anywhere.
By Halogen Systems
WaterOnline — November 2025
AMI IntegrationSensusRemote Monitoring
article
Office Of Naval Research Contract Leads To New Chlorine Sensor Technology
The story behind Halogen Systems' origin — how a Navy SBIR contract to solve ballast water treatment led to breakthrough amperometric sensor technology now used in municipal water systems.
By Halogen Systems
WaterOnline — November 2025
Navy SBIRInnovationCompany History
article
Eliminating Chlorine Sensor Pain Points With New Technology
A look at the common frustrations water operators face with traditional chlorine sensors — reagent costs, constant calibration, waste streams — and how new amperometric technology eliminates them.
By Halogen Systems
WaterOnline — November 2025
TechnologyPain PointsMaintenance
article
Sensors Are The Missing Link For Legionella Control In Buildings And Hospitals
Why continuous chlorine monitoring is the critical missing piece in Legionella prevention programs for large buildings, hospitals, and hot water systems.
By Halogen Systems
WaterOnline — November 2025
LegionellaHot WaterBuilding Safety
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9 Reasons Why Drinking Water Distribution System Monitoring Is Now Practical
Nine technological and economic factors that have made continuous chlorine monitoring throughout the distribution system practical and affordable for utilities of all sizes.
By Halogen Systems
WaterOnline — October 2025
DistributionMonitoringPractical Guide
article
Demand Based Flushing Using AMI And Water Quality Sensors
How integrating water quality sensors with AMI systems enables utilities to replace calendar-based flushing with data-driven, demand-based programs that save millions of gallons.
By Halogen Systems
WaterOnline — September 2025
AMI IntegrationFlushingWater Conservation
article
Chlorine Sensors Waste An Estimated 6.1 Billion Gallons Of Non-Revenue Water Every Year
The hidden cost of traditional chlorine analyzers: their required waste streams add up to 6.1 billion gallons of non-revenue water annually across the U.S. — and how in-pipe sensors eliminate it entirely.
By Halogen Systems
WaterOnline — July 2025
Non-Revenue WaterCost SavingsSustainability
White Papers & Technical Reports
Technical research and application guides from our engineering team.
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Water Quality Monitoring for Legionella Control
How new sensor technology makes it practical to monitor water quality throughout a building's hot water system for Legionella prevention.
By David J. Swiderski (HC Info) & Michael Silveri (Halogen Systems)
LegionellaHot WaterASHRAE 188
description
Monochloramine Measurement, Without Reagents
A continuous, reagent-free approach to measuring free chlorine and monochloramine on the same sensor — and the chlorine-forward control strategy it enables.
By Michael Silveri, Founder, Halogen Systems Inc.
MonochloramineChloraminationMP-TOTAL
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MP-5F: A New Standard in Accuracy
In Halogen’s test, sensors stayed within ±4% (spec: ±5%) across wide ranges of pH (6.5–8.5), temperature (10–35°C), and conductivity (156–10,000 µS) — outperforming competing sensors.
By Halogen Systems Inc.
AccuracyMP-5FpH Compensation
description
Demand-Based Flushing with AMI & Water Quality Sensors
How the City of Gainesville, GA uses Halogen sensors integrated with Sensus AMI to optimize flushing operations and reduce non-revenue water.
By Halogen Systems Inc. & Sensus (Xylem)
AMI IntegrationDistributionFlushing
description
Chlorine Analyzers Waste 6.1 Billion Gallons of Non-Revenue Water
Traditional sensors require a 70,000-gallon waste stream per year. The MP-5F eliminates this entirely with direct in-pipe installation.
By Halogen Systems Inc.
Water ConservationNon-Revenue WaterCost Savings
description
ORP versus Amperometry for Chlorine Measurement
A technical comparison of ORP and amperometric methods for TRO measurement. Covers electrode poisoning, ±30% ORP error, logarithmic response limitations, and why amperometry is the correct choice for quantitative control.
By Halogen Systems Inc.
ORPAmperometrySensor Technology
description
New Alternatives to Online DPD Instruments for TRO Measurement in BWMS
ACT-evaluated amperometric TRO sensor technology for ballast water management systems. Reagent-free, flow-independent, and DNV Type Approved.
By Halogen Systems Inc.
TROMaritimeSensor Technology
Product Data Sheets
Brochures
Product overviews and quick-reference guides for drinking water and maritime applications.
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MP-5F Drinking Water Brochure
8-page overview of MP-5F features, installation options, specifications, and customer testimonials.
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Operator Brochure
Quick-reference guide covering features, benefits, NSF-61 certification, and the no-maintenance advantage.
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Ballast Water TRO Brochure
Maritime TRO sensor models, IECEx certifications, installation diagrams, and SensiCLENE technology.
Product Manuals & Guides
Installation guides, product manuals, and quick start references for all Halogen products.
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D20 + MP-5F · R1.18
D20 + MP5F Free Chlorine (successor to MP5A) Product Guide — R1.18
Updated October 17, 2026. D20 controller and MP-5F free chlorine sensor. R1.18 installation, operation and maintenance guide.
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D20 + MP-TOTAL
D20 + MP-TOTAL Product Guide
Complete product guide for the D20 Controller Module paired with the MP-TOTAL chlorine sensor.
bluetooth
BTSB + MP-5F
Bluetooth SmartBox + MP-5F Product Guide
Product guide for the Bluetooth SmartBox (BTSB) paired with the MP-5F free chlorine sensor.
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BTSB + MP-TOTAL
Bluetooth SmartBox + MP-TOTAL Product Guide
Product guide for the Bluetooth SmartBox (BTSB) paired with the MP-TOTAL chlorine sensor.
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BTSB-C + MP-TOTAL
Battery-Operated BTSB-C + MP-TOTAL Product Guide
Product guide for the battery-operated Bluetooth SmartBox (BTSB-C) paired with the MP-TOTAL sensor.
build
MP-5F
MP5-A Operation & Maintenance Guide (earlier generation)
Operation and maintenance guide for earlier MP5-A sensors (current model: MP-5F). Covers setup, calibration, troubleshooting, and replacement parts.
plumbing
Wet Tap
Wet Tap Sensor Installation Manual
Installation manual for the wet tap direct-insertion sensor. Covers vertical and horizontal installation, component labels, and replacement parts.
rocket_launch
MP-TOTAL
MP-TOTAL Quick Start Guide
Quick start guide for mounting, connecting, and commissioning the MP-TOTAL sensor with the MKIT panel.
Need something specific?
Our engineering team can provide custom technical documentation, application notes, and integration guides for your specific deployment.
Contact EngineeringIs your chlorine analyzer the only reason this site needs a drain?
Explore the true installed cost of an analyzer waste stream, from sample piping and disposal infrastructure to lifecycle costs. Includes discharge calculations, mounting options, and a specification checklist.
Plan the system and record the result.
Field checklists
Prepare a pilot, wet-tap installation, D20 integration or remote site. Download a blank pilot record.
Use the checklists →Certifications and manuals
Check the exact model, assembly, firmware and certification scope before specifying a system.
Review certifications →Find the document for your job.
Filter by product family, task and document type. Search a revision or model name. Historical MP5/MP5A documents remain labelled by their original model; confirm firmware compatibility in the document before use. These documents are in English unless their title states otherwise.
63 documents found
City of Whittier Success Story
Revision: V2026.10.21 · Firmware compatibility: see documentThe Domino Effect of an Analyzer Waste Stream
Revision: See document · Firmware compatibility: see documentawwa opflow april 2025
Revision: See document · Firmware compatibility: see documentonr streams of information
Revision: See document · Firmware compatibility: see documentwet march 2022 amperometric
Revision: See document · Firmware compatibility: see documentMarine TRO Brochure
Revision: See document · Firmware compatibility: see documentMP5F Drinking Water Brochure
Revision: See document · Firmware compatibility: see documentoperator brochure
Revision: See document · Firmware compatibility: see documentCompton Durville Evaluation Report
Revision: See document · Firmware compatibility: see documentLakewood, California Case Study
Revision: See document · Firmware compatibility: see documentMaui County HI
Revision: See document · Firmware compatibility: see documentNewport News Success Story MATCH
Revision: See document · Firmware compatibility: see documentOrange County FL
Revision: See document · Firmware compatibility: see documentOrange County Ironbridge Case Study
Revision: See document · Firmware compatibility: see documentPalm Beach, Florida Case Study
Revision: See document · Firmware compatibility: see documentDNV Type Approval TAA00002XU
Revision: See document · Firmware compatibility: see documentBLE Power Data Sheet
Revision: See document · Firmware compatibility: see documentBT420 Data Sheet
Revision: See document · Firmware compatibility: see documentD20 Controller Data Sheet
Revision: See document · Firmware compatibility: see documentImmersion Data Sheet - MP5 Free & MP-Total (Draft 01)
Revision: See document · Firmware compatibility: see documentMP-HOT Data Sheet
Revision: See document · Firmware compatibility: see documentMP-ORP Data Sheet
Revision: See document · Firmware compatibility: see documentMP-TOTAL Data Sheet
Revision: See document · Firmware compatibility: see documentMP-5F Data Sheet
Revision: See document · Firmware compatibility: see documentMP-5F Pipe Installation Drawing
Revision: See document · Firmware compatibility: see documentWet-Tap Installation Data Sheet - Free & Total Chlorine - REV 2026-10-22
Revision: 2026-10-22 · Firmware compatibility: see documentBuyers Guide
Revision: See document · Firmware compatibility: see documentROI Calculator
Revision: See document · Firmware compatibility: see documentTechnical Reference
Revision: See document · Firmware compatibility: see documentTechnology Selector
Revision: See document · Firmware compatibility: see documentUltimate Guide Chlorine Analyzers
Revision: See document · Firmware compatibility: see documentBattery Operated BTSB C MP Total R1.003
Revision: R1.003 · Firmware compatibility: see documentBTSB MP Total R1.001
Revision: R1.001 · Firmware compatibility: see documentBTSB MP5A R1.001
Revision: R1.001 · Firmware compatibility: see documentD20 MP Total Complete Guide MASTER R1.06
Revision: R1.06 · Firmware compatibility: see documentD20 + MP5F Free Chlorine (successor to MP5A) Product Guide — R1.18
Revision: R1.18 · Firmware compatibility: see documentEarlier D20 MP5A Product Guide — R.01
Revision: R.01 · Firmware compatibility: see documentIM D H1WT P R1.004
Revision: R1.004 · Firmware compatibility: see documentMP Total Quick Start Guide
Revision: See document · Firmware compatibility: see documentMP5A CN01 Product Manual V4.02 06.13.24
Revision: V4.02 · Firmware compatibility: see documentpulp paper residual monitoring kit
Revision: See document · Firmware compatibility: see documentsensus omni installation detail
Revision: See document · Firmware compatibility: see documentCalibration total chlorine with free chlorine
Revision: See document · Firmware compatibility: see documentsensor accuracy 65 days of proof
Revision: See document · Firmware compatibility: see documentSimple Guide DPD and Total Chlorine Calibration (1.0)
Revision: See document · Firmware compatibility: see documentTechnical Guidance Note DPD and Total Chlorine Calibration (1.2)
Revision: See document · Firmware compatibility: see documentDistribution Water Quality Whitepaper
Revision: See document · Firmware compatibility: see documentUtility Leader Brief
Revision: See document · Firmware compatibility: see documentlegionella control whitepaper
Revision: See document · Firmware compatibility: see documentmonochloramine whitepaper
Revision: See document · Firmware compatibility: see documentMonochloramine vs TotalChlorine
Revision: See document · Firmware compatibility: see documentMP-5F Accuracy White Paper
Revision: See document · Firmware compatibility: see documentNitrification Early Warning
Revision: See document · Firmware compatibility: see documentnon revenue water whitepaper
Revision: See document · Firmware compatibility: see documentORP Versus Amperometry
Revision: See document · Firmware compatibility: see documentORP vs. Amperometry
Revision: See document · Firmware compatibility: see documenttro measurement bwms
Revision: See document · Firmware compatibility: see documentWhat Is the Best Chlorine Analyzer When Manganese and Iron Are Present
Revision: See document · Firmware compatibility: see documentWhat Is the Best Chlorine Sensor for Distribution Systems
Revision: See document · Firmware compatibility: see documentWhat Is the Best Chlorine Sensor
Revision: See document · Firmware compatibility: see documentMP-TOTAL Brochure
Revision: See document · Firmware compatibility: see documentRead the Water. Catch the Warning.
Revision: See document · Firmware compatibility: see documentWhat Happens Between Water Tests?
Revision: See document · Firmware compatibility: see document
Explore the cover feature →
IN THE PRESS · SEPTEMBER 2026
Halogen Systems in Municipal Water Leader.
The September issue features a conversation with Michael and Travis Silveri about Halogen’s path to municipal water monitoring.
Explore the featureAnswers for your next monitoring decision.
Reagentless Hach CL17 Alternatives: CLF10sc vs In-Pipe Sensors
Compare reagentless CL17 replacement options: Hach CLF10sc membrane panels and Halogen in-pipe sensors. Evaluate sample drains, maintenance and pilot requirements.
Read the guide →Chlorine Analyzer Water Savings & Carry-Water Flow
Calculate chlorine analyzer drain and carry-water savings. Compare sample-line flow, travel time and NSF/ANSI 61 in-pipe monitoring for water utilities.
Read the guide →ORP vs Chlorine Sensors: What Each Reading Means
Compare ORP and direct chlorine sensors. Learn why millivolts do not translate into a universal chlorine ppm value and which measurement your process needs.
Read the guide →Why pH Affects Free Chlorine Sensor Readings
Understand pH compensation in amperometric free chlorine sensors, flow-cell requirements and how to diagnose changing residual readings before recalibration.
Read the guide →Chlorine Sensor Calibration, Cleaning & Zero Checks
Plan chlorine sensor calibration, DPD verification, zero checks and electrode cleaning. Separate drift troubleshooting from model-specific maintenance procedures.
Read the guide →Membrane vs Membrane-Free Chlorine Sensors
Compare reagentless amperometric sensor designs, membrane caps, electrolyte and maintenance costs with online DPD chlorine analyzers before choosing a system.
Read the guide →Chlorine Sensor Outputs: 4–20 mA, Modbus & IoT
Specify chlorine sensor integration with 4–20 mA, Modbus RTU, PLCs and IoT gateways. Understand scaling, fault handling and Arduino or Raspberry Pi interfaces.
Read the guide →NEW APPLICATION GUIDES
Explore your next monitoring point.
Tank & reservoir chlorine monitoring
Simplify free or total chlorine monitoring in rooftop tanks and reservoirs. Direct immersion, no external sample pump, and fewer components to install and maintain.
Steam and boiler makeup-water chlorine monitoring
Track incoming disinfectant and evaluate chlorine removal in boiler makeup-water pretreatment. Define monitoring points, detection requirements and operator response.
Wastewater effluent chlorine monitoring
Plan continuous chlorine monitoring at wastewater disinfection and reuse points, with a practical checklist for residual species, fouling and verification.
Industrial process-water chlorine monitoring
Evaluate chlorine monitoring for plant utility water, process skids and internal distribution. Plan installation, verification and PLC integration together.
Power-plant cooling-water chlorine monitoring
Plan residual monitoring at cooling-water intakes, condenser circuits and blowdown. Review water chemistry, representative placement and DCS integration.
Chlorine breakthrough monitoring for fish hatcheries
Evaluate hatchery intake and post-treatment monitoring against the required low-level threshold, response time, reference method and alarm behavior.
Food and beverage utility-water chlorine monitoring
Identify chlorine monitoring points for incoming water, storage and utility distribution at food and beverage plants. Separate utility and food-contact requirements.
Residual chlorine monitoring before reverse osmosis
Plan chlorine monitoring around carbon treatment and RO feed water. Define residual species, low-level measurement requirements and breakthrough response.
Brewery-water chlorine and chloramine monitoring
Plan brewery residual monitoring before and after carbon filtration, with separate checks for chlorine, chloramine and RO feed-water requirements.
Low-residual monitoring after wastewater dechlorination
A specification checklist for low-residual measurement after dechlorination: required limit, matrix verification, sampling delay and control-system behavior.
Chlorine monitoring in produce wash and rinse water
Plan an application review for produce wash-water monitoring, covering sanitizer chemistry, changing loading, pH, installation and cleaning exposure.
Chlorine monitoring in CIP rinse water
Separate final-rinse monitoring from CIP cleaning chemistry. Review temperatures, chemical exposure, hygienic installation and verification before a pilot.