Accurate, Color-independent Measurement

Primary and active sludge with different structures and colors, dark digested sludge and light lime sludge make the highest demands on the precise measurement of solids. Only SOLITAX sc solids probes with the patented dual scattered light method can satisfy these demands.

Self-cleaning Wiper Prevents Erroneous Values

The SOLITAX sc sensor's self-cleaning wiper prevents erroneous values and maintenance problems by preventing biological growth. Gas bubbles in the sample do not interfere with the measurement.

Excellent correlation to laboratory analysis

Comparisons between laboratory analysis and continuous suspended solids measurement using SOLITAX sc sensors show an exceptional correlation to mixed liquor, settled and thickened sludge. Online measurement not only saves time on manual analysis but also provides critical real time TSS measurements that can be used to operate the plant more efficiently.

Easy One-point Calibration

All SOLITAX sc probes are factory calibrated in conformity with DIN EN ISO 7027 for long-term calibration stability. Calibration is not necessary. If the probe is used to measure the solids content, a one-point calibration suffices. Multipoint calibration is available for nonlinear samples.

Improve overall efficiency of the plant

Any two SOLITAX sc sensors can be installed using one HACH sc200 Controller. Combinable with probes for O2, NO3, pH, etc. Any combination with other parameters helps improve process control.

What's in the box

Turbidity & Suspended Solids probe, controller, adapter, flange, user manual

Specifications

Accuracy:Turbidity up to 1000 NTU: 
without calibration < 5% of the measured value ±0.01 NTU
with calibration < 1% of the measured value ±0.01 NTU

Accuracy 2:Defined according to ISO/WD 13530.Turbidity Suspended Solids Less than of reading （depends on homogeneity of municipal activated sludge）

Cable Length:10 m （optional extension cables available）

Calibration:Turbidity Suspended Solids:Formazin or StablCal® Standard
Based on gravimetric TSS analysis with a correction factor procedure

Calibration Method:Turbidity: Formazin or STABLCAL Standard （at 800 NTU）. 
Suspended Solids: Sample specific, based on gravimetric TSS analysis with a correction factor procedure.

Certifications:CE certified to EN 61326-1, EN 61326/A1, EN 61326/A2, EN 61010-1

Detection Limit:Turbidity
Suspended Solids

Diameter Sensor:（diameter x length）
Insertion sensor: 60 mm x（2.4 x）

Flow:Flow Velocity 3 m/s （9.8 ft./s） maximum

Length:（diameter x length）
Insertion sensor: 12.4 in （ 315 mm ） （12.4 in.）

Maintenance Interval:1 h/month

Material:Optics Carrier and Sleeve: stainless steel 1.4571; Wiper Arm: stainless steel 1.4581; Wiper Rubber: silicone rubber （standard） Optional: Viton （LZX578）; Wiper Shaft: stainless steel 1.4571

Max. cable length Sensor-to-Controller:100

Measuring Principle:Infrared Duo scattered light technique for color-independent 
turbidity measurement Turbidity in accordance with 
DIN EN 27027 / TS equivalent DIN 38414

Measuring Range:Turbidity
Suspended Solids

Measuring Range TSS-Content:0.001 mg/L to

Measuring Range Turbidity:Suspended Solids 0.001 to 4000 FNU

Mounting:Through sidewall of a pipeline using a ball valve; minimum pipe size （4 in.） in carbon or stainless steel

Operating Temperature Range:0 to 40 °C

Pressure Limit:< 6 bar

Repeatability:< 3 %

Repeatability Turbidity:Defined according to ISO/WD 13530. Suspended Solids. Less than 1 % of reading

Response Time:Initial response in second

Response Time T90:1 to 300 s adjustable

Sample Temperature:>

Turbidity:Units of Measure Turbidity
Suspended Solids User selectable—NTU, FNU, or TE/F

Unit:Units of Measure
Turbidity
Suspended Solids: User selectable—g/L, mg/L, ppm, or % solids

Weight Sensor:2.4 kg