UVAS plus sc Sensor
UVAS plus sc Sensor
Hach’s UVAS plus sc digital UV probe is designed for the “reagent free” determination of organic load (using SAC or spectral absorption coefficient) directly within a sample medium or using a specially designed bypass flow cell.
This self-cleaning optical sensor delivers reliable measurements in near real time. With its stainless steel housing, this instrument can be deployed within the most challenging sample conditions.
The UVAS plus sc is commonly deployed within 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 & monitoring efficiency of UV disinfection .
The UVAS plus sc can be connected to all Hach SC controllers thus providing versatile output options such as:
• 4-20 mA
UV absorbing organic constituents (SAC2540) can be crossed checked on the laboratory DR6000 spectrophotometer.
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.
Application Drinking Water; Clear water Cable Length 10 m fixed cable at sensor Configurations Sensor only Controller Sensor only Diameter 70 mm Length 333 mm Maintenance Requirements 1 h/month in standard applications Material Sensor enclosure: stainless steel 316, 1.4571, single sealed body
Wiper axle: stainless steel 1.4104
Cable gland: stainless steel 1.4305
Cable gland seal: PVDF
Profile carrier: stainless steel 1.4310
Wiper arm: stainless steel 1.4581
Wiper profile: Silicone
Measuring window: Suprasil (quartz glass)
Measurement method UV absorption measurement (unique 2-beam technique)
SAC 254 in accordance with DIN 38404 C3
Measuring Interval ≥ 1 min Measuring Principle UV absorption measurement (patented 2-beam technique) Measuring Principle 2SAC 254 in accordance with DIN 38404 C3 Operating temperature range 2 – 40 °C Parameter SAC Path Length 50 mm Pressure Range 0.5 bar Range 0.01 – 60 1/m Reference Wavelength 550 nm Region US Service Interval 6 months User Maintenance 1 h/month Warranty 12 months Weight 3.6 kg What’s included? SAC probe, user manual
Various UVAS models are available depending on your requirements.
Please consult with Aqualab before ordering.
Available models include:
UVAS sc, 50 mm (Sensor Only)
Product number# LXV418.99.90002
UVAS sc, 1 mm (Sensor Only)
Product number# LXV418.99.10002
UVAS sc, 2 mm (Sensor Only)
Product number# LXV418.99.20002
UVAS sc, 5 mm (Sensor Only)
Product number# LXV418.99.50002
UVAS sc Sensor, 2 mm, with SC200 Controller
Product number# 2976400
UVAS sc Probe, 50 mm, with SC200 Controller
Product number# 2976500
UVAS sc Sensor, 5 mm, with SC200 Controller
Product number# 2976600
UVAS sc Probe, 1 mm, with SC200 Controller
Product number# 2976700
- UVAS sc, 50 mm (Sensor Only)
UVAS plus sc Brochure - AUSUVAS-Brochure-AUS.pdf
Download now Manuals
UVAS plus sc User Manual- AUSDOC023.54.03230.pdf
Download now Additional files
UVAS plus sc Technical Diagram - AUSUVAS-sc-LXV418-Drawing.pdf
UVAS plus sc Advance Online InstrumentationL2165.pdf
UVAS plus sc Using UV Absorption to Monitor Organics in Drinking WaterDOC030.53.10100.Feb16_Master.pdf
UVAS plus sc Using SAC in Dairies & Milk ProcessingSAC-in-Influent-Wastewater-Dairies-Milk-Processing-Plants-2.pdf
UVAS plus sc Using SAC in the Paper IndustrySAC-Measure-to-Control-Ozone-System-in-Paper-Industry.pdf
UVAS plus sc Using SAC254 as an Oxygen Demand PredictorSAC254-as-Oxyen-Demand-Predictor.pdf
UVAS plus sc Using SAC254 Measurement Yields Operational Savings in the Paper Production Ozone SystemOnline-SAC254-Measure-Savgs-Paper-Prod-Ozone-Sys.pdf
UVAS plus sc Using SAC254 Measurement Provides Rapid Detection of Load Changes in Dairy Processing DischargeOnline-SAC254-Detect-Chgs-Dairy-Process-Discharges.pdf
UVAS plus sc Using Organics in Drinking WaterDOC030.53.10098.Jan16_EN-US.web.pdf
UVAS plus sc Using SAC254 and TOC Measurement of Airport RunoffContinuous-SAC254-Measure-Airport-Runoff-Waters.pdf
UVAS plus sc Using SAC254 Determination of Organic Pollutants Is Key in Real-time Wastewater Treatment Process ControlContinuous-SAC254-Determtn-Organ-Pollut-Real-time-Ctrl.pdf
- Optional Accessories
UVAS plus sc Stainless Steel pole mount kit
Product number# LZY714.99.53520
UVAS plus sc Flow Cell unit (2mm)
Product number# LZX869
UVAS plus sc Flow Cell unit (5mm)
Product number# LZX867
UVAS plus sc Flow Cell unit (5mm) - Clear
Product number# LZX866
UVAS plus sc Replacement Wiper Blades (20 x 50mm) - 10 pack
Product number# LZX119
UVAS plus sc Replacement Wiper Blades (5 x 1mm) - 5 pack
Product number# LZX148
- UVAS plus sc Stainless Steel pole mount kit