GS-WCL100 — Free Chlorine Analyzer
Wall-Mount Panel
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Industrial Series: GS-WCL100

Free Chlorine Analyzer

Amperometric free chlorine analyzer with automatic pH compensation for drinking water distribution

Range
0–5 ppm (expandable to 20 ppm)
Accuracy
±0.02 ppm or ±2% of reading
Response
<60s T90
Output
4-20mA, RS485 Modbus RTU
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Product Overview

Overview

The GS-WCL100 is a wall-mount amperometric free chlorine analyzer with a membrane-covered electrode and an integrated pH sensor for real-time compensation of HOCl speciation drift — delivering ±0.02 ppm accuracy and sub-minute T90 response for drinking-water distribution and process-control dosing feedback.

Key Highlights
  • Built-in pH sensor for automatic HOCl compensation
  • Membrane-covered amperometric electrode (18–24 mo life)
  • Delayed-calibration alarm contact for operator alerting
  • Temperature-compensated output
  • IP65 / NEMA 4X wall-mount enclosure
  • 7–30 day calibration interval

Full Technical Specifications

Key Performance

Key Performance metrics for GS-WCL100
Metric Value Status
Range 0-5 ppm; expandable to 20 ppm confirmed
Accuracy ±0.02 ppm or ±2% of reading confirmed
Response <60s T90 confirmed
Output 4-20mA, RS485 Modbus RTU confirmed
Calibration interval 7-30 days confirmed

Specifications

Specifications for GS-WCL100
SpecificationValue
Range0–5 ppm (expandable to 20 ppm)
Accuracy±0.02 ppm or ±2% of reading
Response<60s T90
Output4-20mA, RS485 Modbus RTU

Deployment Environments

Common process environments where this model is evaluated.

Drinking water distribution booster stations
Entry-point free chlorine monitoring
Process water disinfection feedback
SCADA-integrated dosing control

Certification Scope

Standards are listed with scope and status so engineering review can verify the applicable enclosure, area, and safety case.

Certification scope matrix for GS-WCL100
Standard Scope Variant Status Document
CE Approval listed in v1 certification badges Project variant approved On request
IP65 / NEMA 4X Panel enclosure ratings listed in v1 certification badges and feature list Project variant approved On request
CE IP65 NEMA 4X

Request Documentation

Request technical datasheets, user manuals, certificates, and application notes for this model.

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Evidence Notes

application-note

Free-chlorine panel architecture for distribution and dosing feedback

The v1 applications place this analyzer in drinking-water distribution, entry-point monitoring, process-water disinfection, and SCADA dosing feedback. The architecture combines a membrane-covered amperometric electrode, integrated pH compensation, and panel outputs for aqueous free-chlorine control.

Technical / Engineering Details

Technical & Engineering Details

Secondary engineering detail — expand each topic for the full measurement, envelope, sample-system, calibration, and maintenance information.

01 Measurement Principle and Limits

How the measurement is bounded

Membrane-covered amperometric free-chlorine measurement uses an electrode signal with integrated pH compensation for HOCl speciation in water.

Requires

  • Stable sample flow through the online panel or bypass line
  • pH sensor health for HOCl compensation
  • Calibration interval set between the stated 7-30 day window according to water quality and site QA practice

Interferents and Limits

  • pH changes shift HOCl / OCl- speciation and require compensation
  • Membrane fouling or electrode aging can change response
  • Process water chemistry outside the selected free-chlorine method requires application review
  • Total chlorine and combined chlorine duty require a different method selection
  • Water temperature, pressure, flow, and pH numeric ranges are not stated in v1 source data
  • Chlorine-air area monitoring is outside this aqueous panel boundary
02 Operating Envelope

Use these limits as selection inputs, then confirm sample condition, ambient exposure, and materials before quotation.

Temperature
water temperature range not stated in v1 source data
Pressure
sample-line pressure range not stated in v1 source data
Outside This Envelope
  • Operation without stable sample flow through the panel or bypass line
  • Unverified pH compensation for water with large speciation shifts
  • Use as a chlorine-air area monitor
03 Sample System Boundary

Sampling mode, conditioning components, and exclusions define where the analyzer responsibility ends and the sample system begins.

Sampling Mode
extractive
Boundary Components
  • wall-mount panel
  • membrane-covered amperometric electrode
  • integrated pH sensor
  • sample bypass or online flow path
Boundary Exclusions
  • Not a stack, duct, or ambient-air chlorine detector
04 Calibration & Validation site-specific

Calibration method, interval, and traceability are shown only when structured data is available.

Zero / Span Method

Free-chlorine calibration workflow is site-specific; v1 states a 7-30 day calibration interval

Interval

7-30 days

05 Maintenance & Spares site-specific

Tasks, consumables, and access items are shown only when structured maintenance data is available.

Service Tasks
  • Inspect membrane-covered electrode condition during calibration rounds
  • Verify pH sensor response before relying on HOCl compensation
  • Use delayed-calibration alarm contact to alert operators when calibration is overdue
  • Review calibration interval when water quality, temperature, or dosing chemistry changes
Consumables
  • Membrane-covered amperometric electrode
  • pH sensor service parts
  • calibration standards
Cell Life
Membrane-covered amperometric electrode: 18-24 months stated in v1 features

Review GS-WCL100 against site conditions

Send gas range, sample temperature, pressure, moisture, and certification needs before final model selection.

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