The HACH EZ1035 online silicate analyzer uses a molybdate colorimetric method compliant with ASTM standards for measurement. The system is well-designed, combining flexibility, long-term stability, intuitiveness, and scalability, minimizing downtime and maintenance requirements. At the same time, by combining robust engineering design with high-quality materials, we maximize uptime and meet our customers' evolving needs, providing factories with powerful, efficient, and future-ready solutions.

Application Industries:

Wastewater, drinking water, electricity, industrial processes, surface water

Instrument Features:

1) The instrument uses a colorimetric method, conforms to ergonomic design, and is compact in size.

2) High precision and accuracy, robust and durable.

3) Wide measurement range, optional internal dilution function, expandable up to 100ppm measurement range.

4) Built-in pre-diagnosis function helps quickly locate instrument faults and reduces downtime.

5) Multiple analog and digital output options.

6) Supports multi-channel analysis (2, 4, or 8 channels available).

Technical Specifications
Parameters	Si
Analysis method	Molybdate was used for colorimetric measurement at 630 nm wavelength, complying with standard ASTM 4500-SiO2-C
Measurement range	0.005-0.25mg/L, 0.005-0.5mg/L, 0.01-1 mg/L, 0.05-5mg/L, 0.1-10mg/L, 0.25-25mg/L, 0.5-50mg/L, 0.75-75mg/L, 1-100mg/L (optional).
Precision	≤ 1% F.S., use standard solution
LOD	≤ 5 μg/L
Interference	Tannins, large amounts of iron, sulfides, and phosphates are interfering, as well as large amounts of color and turbidity interference, fats, oils, proteins, surfactants, and tar
Analysis cycle	10 minutes (diluted + 5 minutes).
Automatic cleaning	Yes
Calibration	Automatic, 2 points, frequency freely set
Verification	Automatic, frequency can be freely set
Ambient temperature	5-35°C±5°C (avoid direct sunlight and rain), relative humidity 5-95% (no condensation).
Reagent storage	Store at 10-30℃
Sample pressure	Through the external overflow container
Sample flow rate	100 - 300 ml/min
Sample temperature	10-30℃
sSample quality	Allows particle diameter ≤ 100μm, < 0.1 g/L; Turbidity < 50 NTU
Power supply	110-240VAC，50/60Hz； Maximum power consumption: 120VA
Instrument air source requirements	Dry, oil-free, and compliant with ISA-S7.0.01-1996 "Instrument Air Quality Standard"
Deionized water	Used for cleaning and/or dilution
Drainage	Atmospheric pressure external discharge, discharge pipe diameter ≥ 32 mm
Grounding	Uses a >2.5 mm² grounding cable, drying and cleaning a low-impedance (<1Ohm) grounding electrode
Simulated output	4x/8x 4-20mA, maximum load 500Ω
Digital output	Optional: Modbus (TCP/IP, RTU), PROFINET, Profibus DP, Ethernet IP
Alarm	Fault alarm, maintenance alarm, instrument activity
Protection level	Analyzer Cabinet: IP55; PC panel: IP65
Material	Hinge section: hot-formed ABS; Door: acrylic; Wall-mounted section: powder-coated galvanized steel
Size (HxWxD	688 mm x 460 mm x 340 mm
Weight	40kg
Verification	Compliant with CE/ETL certification

Mailing Address: Building B, No. 168 Jinyan Road, Jianxin Town, Cangshan District, Fuzhou

Postal Code: 350007

Customer Service Hotline: 400-668-8627

Main Line/Fax: 0591-83305533/83305866

Email: fgwater@fuguang.com

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