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HXSolutions Technology
MY / WATER MEASUREMENT
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Core water quality

PUBLISHED SPEC · VARIANT CONFIRMED AT QUOTATION

SERIES REFERENCE IMAGE · Exact model photography is confirmed at quotation.

ST-604
Inline chlorine sensor

Measures chlorine concentration in electrolysis or bleach streams as a percentage by mass. Direct optical measurement and temperature compensation support continuous disinfectant monitoring.

MeasurementChlorine · 0.0–2.00% mass/massDetection limit0.01%MethodUV absorbance with RTD temperature compensation
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Application fit

What to check before quotation.

Use the specifications below to assess whether this model fits your application. HXST will confirm the exact variant, accessories and installation context at quotation.

Technical data

Specifications

ST-604 / 50233
Measurement
Chlorine · 0.0–2.00% mass/mass
Detection limit
0.01%
Method
UV absorbance with RTD temperature compensation
Outputs
2 × isolated 4–20 mA analog and RS-485 Modbus
Power
22–26 VDC · 2 W
Installation
1/4 inch OD Teflon tubing through optical channel or ST-001 3/4 inch UPVC tee
Wetted material and rating
UPVC and quartz · IP67
Operating limits
Up to 100 psi (6.9 bar) · 4–49 °C (40–120 °F)
Selection note

Confirm the current model-specific revision, chemical compatibility and installation format before quotation.

Configuration & support

What to discuss with HXST

Application

Share the water or sample context, target measurements and intended use.

Configuration

Share the installation point, outputs, controller or field workflow requirements.

Support

Discuss accessories, operating conditions and guidance needed for the quotation.