FLAME DETECTOR

THICKNESS GAUGE

AUTOMOBILE EMISSION GAS ANALYZER

SAMPLING SYSTEM

SA-9 Spectra Analyzer
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 Description

SA-9 spectrometer probes use standardized spectral algorithms taking in to account the complete absorption spectrum of the water (200 - 750 nm in case of UV/Vis probe) for determination of organic sum parameters such as COD, TOC, BOB and DOC. Furthermore, SA-9's spectral compensation for light absorbing particles and turbidity provides a unique method that allows the monitoring of dissolved organic substances without the need for sample pre-treatment.

 

The validated spectral calibrations, that use multiple wavelengths for monitoring of each parameter, allow much more accurate and robust measurements than with where single wavelength measurement.

 

Using field special calibrations, it is even possible to distinguish various fractions of organic carbon groups using specific features of the absorption spectrum. In particular relations between particular parts of the spectrum and (bio) degradability or organic substances have been established. Such relations allow optimization of the treatment processes used to reduce organic contaminations, for example biological processes in waste water treatment plants. In this latter case, optimization is made possible by the on-line monitoring of the amount of organic substances that can be degraded by micro-organisms (BOD). Using this knowledge, the amount of waste that is fed into the treatment plant can be managed in such a way that the activated sludge is able to most efficiently reduce the organics or alternatively nutrient dosing can be controlled which ensures an optimal concentration at all times (no under or over-dosing).

 

 Measuring Scale & Optic Path Length

Application

WWTP
     Influent/    Sewer

WWTP
     Aeration

WWTP
     Effluent

River water

Drink water

Path length

2mm

5mm

1mm

5mm

5mm

35mm

NO3-N mg/l

0.5-10

 

0.1-20

0.2-25

0.3-70

0.1-10

COD mg/l

25-3750

10-1500

 

2-500

 

 

BOD mg/l

20-1250

10-500

 

2-300

 

 

TOC mg/l

 

 

 

 

1-150

0.1-20

DOC mg/l

 

 

 

 

0.5-75

0.1-10

SAC25 Abs/m

5-750

2-300

 

2-300

2-300

0.1-40

TSS mg/l

25-2500

10-1000

100-8000

2-500

 

 

Turbidity NTU/FNU

 

 

 

 

5-1400

0.5-150

O3 mg/l

 

 

 

0.1-10

 

0.1-10

H2S mg/l

0-25

0-50

 

 

 

 

System

UV-Vis    Spectrum (190~720nm)

Measuring    principle

Spectral    analysis

Optical path    length

2/5/20/35 mm

Light source

Xenon flash    light

Accuracy

±2% of reading

Resolution

±0.5% of scale

Temperature    range

-10°C up to    +50°C

  •  Technical

  •  Interface

    RS232, RS485,    9600; div. protocols, e.g. Modbus

    Modbus for the    connection with other sensors

    USB

    Ethernet, 10    MB/s, div. protocols, e.g. TCP/IP

    GSM, GPRS


 

  •  Parameter

    SAC254

    COD

    TOC/DOC

    NO3-N

    SS

    Phenol

    O3

    H2S

    Color    Hazen-t/f

     

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