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首頁 儀器與試劑 線上監控主機與感測器 Controllers & Sensors 有機污染物 水中有機物線上控制器與感測器 UVAS sc Probe with sc200 Controller
水中有機物線上控制器與感測器 UVAS sc Probe with sc200 Controller
Hach UVASsc 有機物分析儀採用國際通用技術,高精確的紫外光吸收方法。


Continuous UV 254 Absorbance/Transmittance measurements can be used to protect plant treatment processes from high organic loads. Analysis range of 50mm probe is 0.01-60 m-1.

Use for the following applications: protection of treatment plants from industrial dischargers, monitoring shock loads from internal plant processes, control of activated sludge processes, control methanol feed in BNR based on organic loading, final effluent monitoring and monitoring efficiency of UV disinfection processes.
● 國際通用技術,經過驗證、精確的紫外光吸收方法
● 樣品無需預先處理,反應分析速度快,不需任何試劑、無需取樣設備
● 傳感器有機械自清洗功能
● 浸入和流通池兩種安裝方式可供選擇
含有共軛雙鍵或多環芳烴的有機物溶解在水中時,對紫外光有吸收作用。因此,透過測量這些有機物對254nm 紫外光的吸收程度,以特別吸光係數SAC254來表示測量結果,作為衡量水中有機污染物總量的物理量。在一定條件下,SAC254可換算並顯示為COD、BOD、DOC、TOC值。儀器通過雙光束系統,達到濁度自動補償。
Continuous, Automatic Early Warning Systems
Use the Hach UVAS plus sc UV Absorbance/Transmittance Sensor to continuously protect plant treatment processes from high influent organic loads. Operators can use the continuous readings of UV absorbance or transmission to watch for sudden changes in organic load that would require alternate treatment procedures.
Control Activated Sludge Processes
Activated sludge processes require precise balancing of organic load, aeration, and nutrients. Continuous trending of the organics in the system with the UVAS plus sc sensor can help operators know how to balance other factors resulting in cost and time savings.
Self-cleaning Wiper System
With the UVAS plus sc sensor submerged in the sample stream, the detector windows are automatically cleaned by a built-in wiper that eliminates surface films or particles that can diminish accuracy.
Monitor Efficiency of UV Disinfection Process
UV light transmittance (UVT) is critical in the delivery of dose in a UV reactor. The delivered dose is determined by, among other things, the UVT of the source water, the intensity of the UV lamps, and the flow rate of the water source. UVT can be affected by many factors, from a simple change in the seasons to storm events. Potential changes in UVT should be considered in a UV disinfection system for optimized dose delivery. Hach's UVAS plus sc is designed to provide continuous UVT measurement of pre-disinfected source water. Operational costs related to sampling for UVT may be reduced with continuous online measurement. Data can immediately be incorporated into the operation in real time.
Self Diagnostics and Easy Maintenance
Diagnostic routines built into the UVAS plus sc sensor reduce the need for extensive calibration and maintenance. Only semi-yearly inspection and replacement of the wiper and seals is needed.
Organic Constituents Method Range Reagent Set(s) USEPA Compliant?
  Absorbance-Transmittance 0 - 1500 m-1    
Application Notes Type Language Size Date Edition
Continuous Determination of Organic Loading in Wastewater 
Hach White Paper C9
  English US 124 KB 2009-03 Ed1
Continuous SAC254 Determination of Organic Pollutants Is Key in Real-time Wastewater Treatment Process Control 
Application Solution AS-SAC2
  English US 161 KB 2005-04 Ed1
Continuous SAC254 Determination of Organic Pollutants Supports Management of Municipal Collection Systems 
Application Solution AS-SAC1
  English US 280 KB 2005-04 Ed1
Continuous SAC254<sub> </sub>and TOC Measurement of Airport Runoff Streamlines Separation of Polluted and Unpolluted Waters 
Application Solution AS-SAC3
  English US 209 KB 2005-04 Ed1
  English US 498 KB 2016-02 Jan 16
New Integrated Panel Features Multiple Instrument Probes for Proactive Source Water Monitoring. Replacing a clutter of instruments with a compact panel brings confidence in source water monitoring. 
Hach White Paper
  English US 801 KB 2008-07 Ed1
Online SAC254 Measurement Provides Rapid Detection of Load Changes in Dairy Processing Discharge 
Application Solution AS-SAC7
  English US 294 KB 2005-10 Ed1
Online SAC254 Measurement Yields Operational Savings in the Paper Production Ozone System 
Application Solution AS-SAC4
  English US 1 MB 2005-04 Ed1
SAC254 as Oxyen Demand Predictor: the Relationship and Correlation of Oxygen Demand Parameters and SAC 
Application Solution AS-SAC6
  English US 191 KB 2005-04 Ed1
SAC254 Sensor for Reagent-free, Sampling-free Monitoring of Organic Materials in Drinking Water Treatment 
Application Solution AS-SAC5
  English US 182 KB 2005-04 Ed1
The Spectral Absorption Coefficient (SAC) in the Influent of Industrial Wastewater Treatment Plant for Diaries and Milk Processing Factories 
Hach White Paper C9
  English US 98 KB 2009-03 Ed1
  English US 950 KB 2016-03 Feb 16
Datasheets/Brochures Type Language Size Date Edition
Advanced On-line Instrumentation Helps Facility Meet BNR Goals 
  English US 712 KB 2014-08  
Complete Water Analysis for Chemical and Refining industry 
  English UK 1 MB 2016-06 Mar16
  English US 1 MB 2017-03 Feb17
UVAS plus sc UV Absorbance/% Transmittance Sensor Data Sheet 
  English US 243 KB 2014-03 Rev 3
Manuals Type Language Size Date Edition
sc200 Controller Basic User Manual 
  English US, French, Spanish, Portuguese, Chinese, Japanese, Korean, Thai 2 MB 2017-01 Ed 8
sc200 Controller Full User Manual 
  English US 1 MB 2017-01 Ed 8
UVAS sc Sensor User Manual 
  English US 592 KB 2014-11 Ed 4A
Software/Firmware Type Language Size Date Edition
SC1000 Certified Multi-Sensor-DTM Software Package 
Zip file
  English US 11 MB 2014-04 Version 1
sc200 Controller Software 
Extract file to your PC. Carefully read instructions: Instructions Software Upload sc200. Includes all available languages.
  English US, English UK 962 KB 2018-01 Version 2.05