Real Time Water Quality Monitoring System / TECHNOLOGY

Extractive Aqualog 4000 /5000 UVS Previous ProductNext Product

Complete range of analyzers with sampling for Biological and Chemical Parameters

Overview

Aqualog series are on-line water analyser based on a high resolution UV-visible spectrograph. Our range of analyzers monitor simultaneously many different parameters for waste water treatment plants or river monitoring stations with an excellent stability and low operating cost. The spectrograph can measure organic matter, nitrate, colour, turbidity, phosphate and other metallic and non-metallic parameters. The UV – Vis analyser, is advantageous over conventional analyzers as it comes with parameter and its respective technology addition. A complementary UV-visible fluorescence module allows the measurement of aromatics hydrocarbons (PAH). Nephelometric turbidity by visible or infra-red laser diode is also available. The full UV-visible spectrum can also be used to monitor specific chemical process making the it an ideal instrument for chemical plants. External probes can be added for physicochemical parameters like pH, ORP, dissolved oxygen, conductivity and turbidity. Thanks to its automatic cleaning system and its extremely long life time lamp, the maintenance is roughly limited to the periodic refill of the inexpensive cleaning solution and eventually reagents depending on the parameters.

Innovation to UV – Vis Spectroscopy

• A high resolution spectrograph scanning wavelengths from 180 nm to 750 nm, with wavelength resolution and on-screen display of values at each wavelength is the master part. • Direct absorbance measurement for UVA, COD, BOD, TOC, NO3, Colour PO4 and Cr VI brings fast and stable measurements with a simple hydraulic circuit. The analyzers are factory calibrated and local multi-point calibration allows to get readings of COD, BOD and TOC under the UV alternative method for compatible applications. UV spectroscopy brings faster results than conventional methods like COD, BOD, TOC with much less maintenance once the correlation is determined. • The Analyzer allows to add additional modules for Gaseous parameters mainly Ammonia, Hydrogen Sulphide. A revolutionary method of Gas stripping allows to monitor total gas concentration and not in ionic form. This method allows to measure Ammonia and Hydrogen Sulphide separately and Ammonical Nitrogen in liquid phase. • Aqualog series of analyzers are designed for a non-clog operation, as the Analyzer comes equipped with a flow cell of different apertures of 1mm, 3 mm and 10 mm. This makes these analyzers advantageous for all levels of suspended solids. • The light source, being a pulsed Xenon Lamp, allows for 10 years of life as 10^9 flashes.

UV Absorbance Spectroscopy

1. Xenon Lamp
2. Flow Cell
3. Beam splitter
4. Peak Filter
5. Peak detector
6. Reference filter
7. Reference detector

UV Fluorescence

1. Xenon Lamp
2. Excitation Filter
3. Flow Cell
4. Emission Filter
5. Photomultiplier
6. Reference photo detector

Colorimetric method

1. LED
2. Flow Cell
3. Photo Detector
4. Reagent Pump
5. Reagent Tank

90 Degree light Scattering Nephelometry (Turbidity)

1. Laser Diode
2. Flow Cell
3. Photo Detector

UV Absorbance – Gas Stripping

1. Spectrograph
2. Beam Splitter
3. Liquid Flow Cell
4. Xenon Lamp (Liquid phase)
5. Xenon Lamp (Gas phase)
6. Gas flow cell
7. Gas pump
8. Stripping Pot
9. Temperature Probe

Features

User Friendly Interface

The colour touch screen and user friendly interface available in different languages which makes very easy to test or configure the analyser. A USB port is provided to download the last 24 hours recorded measurements as well as a diagnostic file containing the configuration and useful information for remote troubleshooting. The interface caters to test and troubleshoot each element of the analysers (light signal, pumps, solenoid valves, etc...). The diagnostics feature to understand the life of sensors and parts is the master part in this configuration.

Multiplexing System

Aqualog analyzers offer state of the art feature of multiplexing offering analysis of different streams (upto 6), in a single instrument. Addition of Electronically controlled solenoid valves and modifications in software caters to this feature in the analyser.

Up to 6 different streams can be selected

The Standard channels can be either duplicated (each one having its own 4-20mA output or MODBUS register), or measured sequentially to fit with the maximum of 16 Standard channels (a MODBUS register tells which stream is currently being measured).

Automatic Cleaning

To avoid deposits on the optical windows and tubing, all the analyzers have a built-in-automatic cleaning system that injects a 5 % sulphuric solution normally once a day. An auto-zero is performed at the same time to avoid any drift of the measurement.

Analyzer Specifications

Sample flow Recommended Recommended: 0 - 5 l/min
Sample pressure 0 - 4 Bar (0 - 1 Bar with sampling peristaltic pump)
Sample temperature 0 - 80 °C
Wet parts materials Quartz, Polypropylene, Polyethylene, FPM (Viton), PMMA
Measuring time 5 sec (except PO4, NO2, Fe, Cr (VI) : 3mn /, Cl2, Al : 2mn / SiO2 : 6 min)
Measurement interval 1 min to 720 min (If measuring time compatible) Physicochemical parameters may be continuous
Memory 5000 lines of measurements (up to 16 channels) with date and time
Consumption Cleaning solution Cleaning solution (5% sulfuric acid): 220 ml/day Reagent per measurement: Al: 0.5ml / Cl2, PO4, Fe, NO2, Cr(VI) : 0.6 ml / Sio2 : 1.2 ml
Maintenance interval Recommended: 6 months to 1 year (except for refilling)
Power supply 90 - 264 VAC 50/60 Hz 40 VA - 12v DC 3A maxi
Screen olour TFT LCD 320x240 pixels with LED backlight
Depending on model and configuration as per parameters
Communication RS232, Modbus or HTTP/Web interface, compatible with Windows7, with Internet Explorer version 9, Nexus 7 tablet under Android with Opera version 12.10, Apple I-phone 4S with Safari
RS485 for external probes (DO, TSS) USB
WI-FI (IEEE802.11B)
optional Ethernet (IEEE802.3) optional
Certifications TUV Rheinland, CE, EN 61010-1, EN 61326
Enclosure Stainless steel with epoxy coating, IP65, wall mounting brackets
Dimensions 230 x 340 x 190 mm (H x W x D) (Standard for BOD, COD, TSS)
Changes as per parameter specifications.
Weight 15 to 20 kg depending on the configuration

Parameter Specifications

Parameter Measurement Technology Standard Range Accuracy
UVA UV – Vis Spectroscopy 0-200 Abs/m
0-600 Abs/m 		± 2 %
COD UV – Vis Spectroscopy 0-100 mg/l COD
0-2000 mg/l COD
0 – 20000 mg/l COD		 ± 2 %
BOD UV – Vis Spectroscopy 0-100 mg/l BOD
0-1000 mg/l BOD
0-10000 mg/l BOD 		± 2 %
TOC UV – Vis Spectroscopy 0-100 mg/l TOC
0-1000 mg/l TOC
0-10000 mg/l TOC 		± 2 %
TSS UV – Vis Spectroscopy 0-1000 mg/l TSS
0-10000 mg/l TSS		 ± 2 %
Nitrate UV – Vis Spectroscopy 0-100 mg/l NO3 ± 2 %
Colour UV – Vis Spectroscopy 0-100 pt/Co
0-1000 pt/Co 		± 2 %
PAH (aromatics) UV Fluorescence 0-10 mg/l C6H6 ± 2 %
Oil in Water UV Fluorescence 0-100 ppm OIW
0-1000 ppm OIW 		± 2 %
Chlorophyll A 0-100 μg/l ChlA ± 2 %
Phosphate Colorimetry 0-2 mg/l P-PO4
0-20 mg/l P-PO4 		± 2 %
Chlorine Electrochemistry
UV -Vis Spectroscopy		 0 – 5 mg/l Cl2 ± 2 %
Nitrite UV – Vis Spectroscopy 0 – 5 mg/l NO2 ± 2 %
Aluminium Colorimetry 0 – 500 ppb Al ± 2 %
Iron Colorimetry 0 – 2 mg/l Fe ± 2 %
Silica Colorimetry 0 – 20 mg/l SiO2 ± 2 %
Cr VI Colorimetry 0 – 2 mg/l Cr VI ± 2 %
Turbidity UV – Vis Spectrophotometry 0 – 10 NTU
0 – 100 NTU
0 – 1000 NTU		 ± 2 %
pH Electrochemistry 0 - 14 ± 2 %
ORP Electrochemistry +/- 2000 mV ± 2 %
Dissolved Oxygen Optical Fluorescence 0 – 25 mg/l O2 ± 2 %
External TSS 90 degree light scattering 0 – 1500 mg/lit TSS
0 – 30000 mg/lit TSS		 ± 2 %
External Turbidity 90 degree light scattering 0 – 4 NTU
0 – 40 NTU		 ± 2 %
Conductivity Electrochemistry 0 – 2000 uS ± 2 %

Parts

Aqualog 4000 UVS Full spectrum UV-Vis absorbance Analyzer
Optical path: 1,3,10 mm
(4 multiplexing option)
Aqualog 4000 UVS/1 Full spectrum UV-Vis absorbance Analyzer
Optical path: 1 mm
Standard for inlet and outlet of waste water
Aqualog 4000 UVS/3 Full spectrum UV-Vis absorbance Analyzer
Optical path: 10 mm
For Drinking water
Aqualog 5000 UVS Full spectrum UV-Vis absorbance Analyzer
Optical path: 1,3,10 mm
(6 multiplexing option)
Note: Refer to product catalogue

Accessories

SAMPLING PUMP

Product Code: AN-P-EXT
External Peristaltic sampling pump for unpressurized water • Heavy duty brushless motor.
• Connected to analyzer electronics with timer for sampling, increasing life

SOLENOID VALVES

Product Code: AN-SV-EXT
External Valves for Multiplexing • Normally Open configuration
• Connected to analyzer electronics for sampling, increasing life of pump, tubing.

INPUT MODULES

Product Code: AN/IN-4-20-AQUVS
Input Modules for External probe/electrodes • Isolated 4 – 20 mA inputs upto 5

OUTPUT MODULES

Product Code: AN/OUT-4-20-AQUVS
Output Modules for External probe/electrodes • Isolated 4 – 20 mA outputs upto 5

COMMUNICATION

Product Code: AN-COMM-AQUVS
WiFi Interface for future norms • Connection to wireless network
• Secured tamper proof data transfer

COMMUNICATION

Product Code: AN-COMM-AQUVS
Ethernet or GSM Interface for future norms • Ethernet based on IEEE 802.3
• Dual band GSM with integral SIM card reader
• Secured tamper proof data transfe

COMMUNICATION

Product Code: AN-COMM-AQUVS
Cloud Data Logger Interface • Connection via SIM, LAN
• Secured tamper proof data transfer

Certifications

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Real Time Water Quality Monitoring System / TECHNOLOGY

Extractive Aqualog 4000 /5000 UVS Previous ProductNext Product

Complete range of analyzers with sampling for Biological and Chemical Parameters