Instrumentation · Engineering · Package · PLC
0755-82221901 sales@ainstru.com

SURFACE 7sc high-range online turbidity meter

SURFACE 7sc high-range online turbidity meter
7sc high-range online turbidity meter
HACH SURFACE
The Surface Scatter 7sc high-range turbidimeter uses the scattered light monitoring principle. The sample flows into the inclined turbidimeter body at a flow rate of about 1 to 2 liters per minute. The liquid overflows the horizontal plane at the top of the turbidimeter body, forming a flat measuring plane. A strong beam of light is directed at the liquid surface at a certain angle. Suspended particles in the sample emit scattered light, and a detector placed above the liquid surface detects the 90-degree scattered light.

Application Industry:

The Surface Scatter 7sc high-range turbidimeter is suitable for the drinking water/wastewater/industrial process water industries, measuring the turbidity of water with high suspended solids content such as raw water and sedimentation tank effluent.

Instrument Features:

  • This high-range turbidimeter uses Surface Scatter technology, reducing interference for reliable and accurate results.

  • The optical components do not contact the water, eliminating the need for frequent probe cleaning and reducing maintenance.

  • Wide measuring range up to 0~9999NTU.

  • Corrosion-resistant materials allow detection of high-temperature samples.

  • Equipped with a reference calibration plate for more convenient monitoring of the instrument's current status.

  • Can be connected to the standard sc200 or sc1000 controller

Technical Specifications

  • Measuring range:    0~9999NTU

  • Accuracy:    At 0~2000NTU, ±5% of reading

  • or ±0.1NTU, whichever is greater;

  • At 2000~9999NTU, ±10% of reading

  • Sample flow rate:    1.0~2.0L/min

  • Power supply:    220 VAC, 50 Hz, 40 VA

  • Sample temperature:    High temperature  0-70℃, standard 0-50℃

  • Analog, digital, alarm signals:    Please refer to the technical specifications of the sc200 or sc1000 standard controller

Ordering Guide

  • 2977200    SS 7 sc turbidimeter; including sc200 controller

  • 2977300    SS 7sc high-temperature sample turbidimeter (HST); including sc200 controller (dual channel)

  • 2978500    SS 7 sc turbidimeter;  including sc200 controller (single channel)

  • 2978600    SS 7 sc high-temperature sample turbidimeter;  including sc200 controller (single channel)

  • LPV431.52.00002    SS 7 sc turbidity sensor only; sc200 controller not included

  • 466912-22    Automatic flushing assembly 220 Vac

  • 46680-00    Debubbler

  • 2461-49    4000 NTU standard solution 500 mL

  • 57960-00    Sensor extension cable 7.6 m

  • 52215-00    1NTU, ICE-PIC verification module

  • 26601-53    20.0NTU, 1L STABLCAL verification and calibration standard solution

  • 26598-53    1.0NTU, 1L, STABLCAL verification and calibration standard solution

  • 44156-00    FORMAZIN calibration kit (including 4000NTU Formazin (500mL), TenSette pipette and calibration bucket)

  • 2461-49    Formazin standard solution, 4000NTU, 500mL

  • 44153-00    Calibration bucket, 1L (Note: Calibration bucket must be ordered separately)

Source: Public information from the HACH Water Quality website

Municipal Wastewater Treatment

Municipal Wastewater Treatment · HACH-ONLINE — Application Case

Project Background

The project covers the inlet, biological and outlet stages of a municipal plant. The work centres on HACH-ONLINE and the core task is continuous outfall monitoring with Hach online instruments.

Operating Challenges

The medium and duty are characterised by high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. So HACH-ONLINE cannot be specified generically — it calls for configured by monitoring range, reagent replacement interval and conditioning.

Solution

The Ainstru engineering team worked through the online water-analysis line: integrating around each online monitoring point. The configuration involves configured by monitoring range, reagent replacement interval and conditioning, with these requirements in view: stable compliance with Grade 1A discharge limits and online data reporting.

Results

Since start-up the system has run steadily; the practical result is steady reagent and consumable supply, making upkeep predictable.

Food & Beverage

Food & Beverage · HACH-ONLINE — Application Case

Project Overview

The site is dosing, pasteurising, filling and CIP stages. The customer wanted HACH-ONLINE properly configured on the existing plant, with the aim of continuous outfall monitoring with Hach online instruments.

Technical Challenges

What actually causes trouble is syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. All of this means the HACH-ONLINE configuration has to involve configured by monitoring range, reagent replacement interval and conditioning.

Configuration

Supply and installation were organised through the online water-analysis line: integrating around each online monitoring point. On site this meant configured by monitoring range, reagent replacement interval and conditioning, checked line by line against: food-safety and hygienic design per 3-A / EHEDG.

Performance

After commissioning the outcome is steady reagent and consumable supply, making upkeep predictable, and the readings are now used for process tuning.

Chemical & Pharmaceutical

Chemical & Pharmaceutical · HACH-ONLINE — Application Case

Site Conditions

This is a Chemical & Pharmaceutical customer whose plant is at reactors, metering vessels and finished-product tanks. The main task was continuous outfall monitoring with Hach online instruments.

The Problem

The difficulty lies in highly corrosive media with solvents and crystallisation, partly in explosive atmospheres; at the same time corrosion plus Ex protection shortens instrument life and makes downtime costly. Specification therefore means configured by monitoring range, reagent replacement interval and conditioning.

What We Did

We took a online water-analysis line approach — integrating around each online monitoring point. Delivery was built around configured by monitoring range, reagent replacement interval and conditioning, with point-by-point checks on: Ex certification and GMP traceability of records.

Operating Outcome

In service the system performs as intended — steady reagent and consumable supply, making upkeep predictable, with routine maintenance falling noticeably.

Power & Energy

Power & Energy · HACH-ONLINE — Application Case

Application Context

boiler feedwater, turbine condensate and FGD/DeNOx systems is a typical Power & Energy duty. The project started from HACH-ONLINE, focusing on continuous outfall monitoring with Hach online instruments.

Process Constraints

drift under high temperature and pressure, with very costly unplanned outages, and high temperature and pressure with both steam and saline water only amplify it. The HACH-ONLINE specification must therefore cover configured by monitoring range, reagent replacement interval and conditioning.

Delivery Approach

Delivery was handled as the online water-analysis line — integrating around each online monitoring point. Execution centred on configured by monitoring range, reagent replacement interval and conditioning, together with compliance with power-industry codes and unit availability targets.

Field Results

Operation shows the benefit clearly — steady reagent and consumable supply, making upkeep predictable, with confidence in this measuring point improving markedly.