The Hach DR 2700 Spectrophotometer can perform over 130 analytical water quality tests using pre-programmed methods. It has a small footprint, touch screen interface, and accommodates various cell sizes. The instrument can be used with line power or a rechargeable battery, and stores up to 200 test results and 10 user programs. Data can be transferred to a computer via USB for analysis.
Incepted in 1988 by Dr. Lalit Kumar, Laser Science is India's premier distributor of Lasers and Spectroscopy instruments. Our range of products covers scientific and industrial laser systems, spectroscopy, microscopy & imaging systems. We distribute major brands that are reputable global market leaders in their respective fields. These names include Coherent Inc (USA), Femtolasers (Austria), Optronis GmbH, PCO AG (Germany), Beneq (Finland) and many others.
Incepted in 1988 by Dr. Lalit Kumar, Laser Science is India's premier distributor of Lasers and Spectroscopy instruments. Our range of products covers scientific and industrial laser systems, spectroscopy, microscopy & imaging systems. We distribute major brands that are reputable global market leaders in their respective fields. These names include Coherent Inc (USA), Femtolasers (Austria), Optronis GmbH, PCO AG (Germany), Beneq (Finland) and many others.
Easy line EL3000 series ABB CEMS Datasheet-continuous gas analyzersENVIMART
Easy line EL3000 series ABB CEMS Datasheet-continuous gas analyzers - ABB - Envimart JSC - www.envimart.vn - ĐT: 028 77727979 - sales@envimart.vn - Nền tảng cung cấp thiết bị, vật tư ngành nước và môi trường.
AAVOS International bvba has a wide range of online process instrumentation for many applications in chemical, petrochemical, oil, gas, food, beverage and pharmaceutical industry.
We will advise you to find the right equipment for your analysis of fluids, gasses and solids.
Process on-line analysers are offered as a solution to the efficiency of plant operation and offer huge paybacks. Our analysers are also applied for monitoring emissions and as safety measurement. http://aavos.be
Presentation Outline for Expanding Your High Performance Liquid Chromatography and Ultra High Performance Liquid Chromatography Capabilities with Universal Detection-Shedding Light on Non-Chromophore Compounds:
• Introduction to Charged Aerosol Detection
• How Charged Aerosol Technology Works
• Comparison with Evaporative Light Scattering Detectors
(ELSD)
• Examples of Applications
• Inverse Gradient Solution for Uniform Response
Designed for a multitude of applications from coasts to rivers, the Profiler is a small, lightweight & cost-effective solution for shallow water (<100 m). Deploy it on the bottom, on a buoy or on a mooring line. Aquadopp is complete including all parts required for a self-contained deployment with internal batteries & a datalogger. Additional configurations are available.
Outline of presentation:
Overview — Plating Baths and High Pressure Liquid Chromatography (HPLC)
Determination of Accelerator and Suppressor by HPLC and Charged Aerosol Detection
Sample Preparation, Calibration, Measurements
Comparisons to CVS data
Determination of Accelerator and Leveller by HPLC and Electrochemical Detection (ECD)
Coulometric Detection Mechanism and Design
Calibration and Measurements
Nickel Additives, Saccharin and Sodium Alkylsulfate
Gage Study Results
No single liquid chromatography (LC) detector delivers ideal results. Often with LC detectors one analyte responds more strongly than another, or may not respond at all. What is most desired is the ability to accurately measure a wide range of analytes with consistent response simultaneously.
Charged Aerosol detection (CAD) is a mass sensitive technique for determining levels of any non-volatile and many semi-volatile analytes after separation by liquid chromatography. This technique provides consistent analyte response independent of chemical characteristics and gives greater sensitivity over a wider dynamic range. An analytes response does not depend on optical properties, like with UV-vis absorbance, or the ability to ionize, as with mass spectrometry (MS). The presence of chromophoric groups, radiolabels, ionizable moieties, or chemical derivatization is needed for detection.
Water Analyzer Specialist, HUMAS Co. Ltd. Company Introduction Humas Co. Ltd. Korea
Humas is a technology-intensive company that consists of experts including the researchers who came from research institutes of Daedeok, Science Town, which is a Mecca for research and development activities in Korea, related to new materials and environmental technologies as well as professors of KAIST.
Since after the company was founded, we have dedicated ourselves to the development of the water quality analysis technology and now take pride in our competitiveness that allows us to compete with global top-notch companies in the sector of water quality analysis technology. We developed a water analysis kit that consists of about 70 items to be used currently in the water quality analysis, as well as a transportable water quality analyzer, a desk top type water quality analyzer and a physical-chemical spectrophotometer for us to provide services for our customers. Recently, we developed also on-line devices related to water quality (A turbidity continuous measuring device, an automatic chlorine measuring device, as well as a automatic device for measuring nitrogen and phosphorus) to provide a one-stop service related to water quality.
The Cloud Point test cell is first flushed through with a fresh sample. A small amount of sample is then isolated in the cell and allowed to settle for a predetermined period to allow any air bubbles or solids to separate. The sample cell is then cooled at a controlled rate by a Peltier cooler with excess heat being removed by a coolant. An optical detector senses when the sample is starting to become cloudy as waxy components start to precipitate. The temperature at which this occurs is taken as the cloud point
Overview of webinar:
Rechargeable, manganese-based, lithium-ion batteries (LiBs) are environmentally friendly, have a good safety record, and can be made at a lower cost than other metal-based LiBs. However, they have a shorter lifetime. Much research has been spent on improving product safety, cycle life, and product performance, yet understanding fundamental processes and degradation mechanism in LiBs remains a challenge. Identifying breakdown products and understanding degradation processes can lead to enhancing battery performance, improvements in product safety, and insight into component failure mechanisms.
Easy line EL3000 series ABB CEMS Datasheet-continuous gas analyzersENVIMART
Easy line EL3000 series ABB CEMS Datasheet-continuous gas analyzers - ABB - Envimart JSC - www.envimart.vn - ĐT: 028 77727979 - sales@envimart.vn - Nền tảng cung cấp thiết bị, vật tư ngành nước và môi trường.
AAVOS International bvba has a wide range of online process instrumentation for many applications in chemical, petrochemical, oil, gas, food, beverage and pharmaceutical industry.
We will advise you to find the right equipment for your analysis of fluids, gasses and solids.
Process on-line analysers are offered as a solution to the efficiency of plant operation and offer huge paybacks. Our analysers are also applied for monitoring emissions and as safety measurement. http://aavos.be
Presentation Outline for Expanding Your High Performance Liquid Chromatography and Ultra High Performance Liquid Chromatography Capabilities with Universal Detection-Shedding Light on Non-Chromophore Compounds:
• Introduction to Charged Aerosol Detection
• How Charged Aerosol Technology Works
• Comparison with Evaporative Light Scattering Detectors
(ELSD)
• Examples of Applications
• Inverse Gradient Solution for Uniform Response
Designed for a multitude of applications from coasts to rivers, the Profiler is a small, lightweight & cost-effective solution for shallow water (<100 m). Deploy it on the bottom, on a buoy or on a mooring line. Aquadopp is complete including all parts required for a self-contained deployment with internal batteries & a datalogger. Additional configurations are available.
Outline of presentation:
Overview — Plating Baths and High Pressure Liquid Chromatography (HPLC)
Determination of Accelerator and Suppressor by HPLC and Charged Aerosol Detection
Sample Preparation, Calibration, Measurements
Comparisons to CVS data
Determination of Accelerator and Leveller by HPLC and Electrochemical Detection (ECD)
Coulometric Detection Mechanism and Design
Calibration and Measurements
Nickel Additives, Saccharin and Sodium Alkylsulfate
Gage Study Results
No single liquid chromatography (LC) detector delivers ideal results. Often with LC detectors one analyte responds more strongly than another, or may not respond at all. What is most desired is the ability to accurately measure a wide range of analytes with consistent response simultaneously.
Charged Aerosol detection (CAD) is a mass sensitive technique for determining levels of any non-volatile and many semi-volatile analytes after separation by liquid chromatography. This technique provides consistent analyte response independent of chemical characteristics and gives greater sensitivity over a wider dynamic range. An analytes response does not depend on optical properties, like with UV-vis absorbance, or the ability to ionize, as with mass spectrometry (MS). The presence of chromophoric groups, radiolabels, ionizable moieties, or chemical derivatization is needed for detection.
Water Analyzer Specialist, HUMAS Co. Ltd. Company Introduction Humas Co. Ltd. Korea
Humas is a technology-intensive company that consists of experts including the researchers who came from research institutes of Daedeok, Science Town, which is a Mecca for research and development activities in Korea, related to new materials and environmental technologies as well as professors of KAIST.
Since after the company was founded, we have dedicated ourselves to the development of the water quality analysis technology and now take pride in our competitiveness that allows us to compete with global top-notch companies in the sector of water quality analysis technology. We developed a water analysis kit that consists of about 70 items to be used currently in the water quality analysis, as well as a transportable water quality analyzer, a desk top type water quality analyzer and a physical-chemical spectrophotometer for us to provide services for our customers. Recently, we developed also on-line devices related to water quality (A turbidity continuous measuring device, an automatic chlorine measuring device, as well as a automatic device for measuring nitrogen and phosphorus) to provide a one-stop service related to water quality.
The Cloud Point test cell is first flushed through with a fresh sample. A small amount of sample is then isolated in the cell and allowed to settle for a predetermined period to allow any air bubbles or solids to separate. The sample cell is then cooled at a controlled rate by a Peltier cooler with excess heat being removed by a coolant. An optical detector senses when the sample is starting to become cloudy as waxy components start to precipitate. The temperature at which this occurs is taken as the cloud point
Overview of webinar:
Rechargeable, manganese-based, lithium-ion batteries (LiBs) are environmentally friendly, have a good safety record, and can be made at a lower cost than other metal-based LiBs. However, they have a shorter lifetime. Much research has been spent on improving product safety, cycle life, and product performance, yet understanding fundamental processes and degradation mechanism in LiBs remains a challenge. Identifying breakdown products and understanding degradation processes can lead to enhancing battery performance, improvements in product safety, and insight into component failure mechanisms.
An in-depth presentation about International Commercial Terms that helps you understand this trade standard with the aid of intuitive pictures, charts and graphical interpretations.
Submersible H2S/Sulphide Probe Special Features:
- Sensors for H2S (amperometric micro-sensor), temperature, pH and depth
- Very easy sensor exchange
- Windows based software for display of chemical/physical units and diagrams
- Free selection of displayed parameters (H 2 S or total dissolved sulphide, T, pH)
- Titanium made housing and protection cage
- Subconn titanium connector
- Very small dimensions (48 mm diameter, 440 mm total length)
- Low weight of 1 kg
- Small and low-weight cable (6 mm diameter)
- Low running costs for chemical sensor replacement
www.envimart.vn - ĐT: 028 77727979 - sales@envimart.vn - Nền tảng cung cấp thiết bị, vật tư ngành nước và môi trường. Chuyên cung cấp vật tư cho dự án xử lý nước sạch, nước thải và môi trường. Envimart luôn đồng hành, tin cậy với đối tác nhà thầu, nhà tích hợp và người sử dụng.
Liquid Sensing: Visible light absorption spectroscopy and colorimetry are two fundamental tools used in chemical analysis. Most of these light-based systems use photodiodes as the light sensor, and require similar high input impedance signal chains. This session examines the different components of a photodiode amplifier signal chain, including a programmable gain transimpedance amplifier, a hardware lock-in amplifier, and a Σ-Δ ADC that can measure a sample and reference channel to greatly reduce any measurement error due to variations in intensity of the light source.
Gas Sensing: Many industrial processes involve toxic compounds, and it is important to know when dangerous concentrations exist. Electrochemical sensors offer several advantages for instruments that detect or measure the concentration of toxic gases. This session will describe a portable toxic gas detector using an electrochemical sensor. The system presented here includes a potentiostat circuit to drive the sensor, as well as a transimpedance amplifier to take the very small output current from the sensor and translate it to a voltage that can take advantage of the full-scale input of an ADC.
Elevate your water treatment game with our Intuition-9™ Series Controllers Brochure. Explore cutting-edge technology and features designed to enhance water quality control. Download now for a smarter, more efficient water treatment solution.
Tektronix keithley Product and Application update Q2 2016Jeff Sable
Tektronix delivers innovative, precise and easy-to-operate test, measurement and monitoring solutions that solve problems, unlock insights and drive discovery.
Monitoring water and process water with Titration and Colorimetry.
On line analyser for the automatic monitoring of water quality and process water.
PARAMETERS
Aluminium, ammonium, free chlorine, total chlorine, chlorides, chromium VI, hydrazine, iron, manganese, morpoline, peracetic acid, phenols, phosphates, silica, sulfates, hardness, TH, etc…
Laser HF Hagen Wergen 0918158933 Vat lieu nha khoa chinh hang gia sivatlieunhakhoa
Máy phẩu thuật cắt đốt cầm máu và trị liệu nha khoa đa năng bằng công nghệ Laser và cao tần F đến từ Đức 0918158933. Vat lieu nha khoa chinh hang gia si
*Tính năng:
-Thiết kế I-Cube với bàn phím điều khiển bằng màn hình cảm ứng 2 trong 1: Kết hợp công nghệ cắt đốt, giải phẩu, và nhiều phương pháp trị liệu khác bằng tia Laser tiên tiến và công nghệ cắt đốt cầm máu cao tần HF.
- Tùy chọn trang bị thêm tay kẹp tự khâu vết thương hở, không cần chỉ khâu.
- Làm lành, giảm đau vết thương bằng công nghệ điều trị bệnh lý bằng tia Laser Năng Lượng Thấp LLLT.
- Điều trị nha khoa bằng liệu pháp Quang Động Lực PDT bằng tia Laser.
- Với khả năng tùy chọn trang bị thêm tay Laser tẩy trắng răng bằng tia Laser với thuốc tẩy trắng răng MiraWhite từ chính hãng Hager Werken, Đức.
-Tay cắt đốt cao tần với mọi tính năng tiên tiến như: cắt đốt, cầm máu.
- Phẫu thuật tạo hình nướu.
- Diệt khuẩn tăng cường ống tủy bằng tia Laser sau khi ống túy đã được lấy và rửa sạch bằng dung dịch sát khuẩn.
https://www.facebook.com/386115188817133
Instrumentation: Liquid and Gas Sensing (Design Conference 2013)Analog Devices, Inc.
This session focuses on liquid and gas sensing in instrumentation applications.
Liquid Sensing:
Visible light absorption spectroscopy and colorimetry are two fundamental tools used in chemical analysis. Most of these light-based systems use photodiodes as the light sensor, and require similar high input impedance signal chains. This session examines the different components of a photodiode amplifier signal chain, including a programmable gain transimpedance amplifier, a hardware lock-in amplifier, and a Σ-Δ ADC that can measure a sample and reference channel to greatly reduce any measurement error due to variations in intensity of the light source.
Gas Sensing:
Many industrial processes involve toxic compounds, and it is important to know when dangerous concentrations exist. Electrochemical sensors offer several advantages for instruments that detect or measure the concentration of toxic gases. This session will describe a portable toxic gas detector using an electrochemical sensor. The system presented here includes a potentiostat circuit to drive the sensor, as well as a transimpedance amplifier to take the very small output current from the sensor and translate it to a voltage that can take advantage of the full-scale input of an ADC.
There are many other visible spectrophotometer, you can visit our official website if you are interested. Also you can contact us when you got any problem, the contact information can be found on our websites.
www.envimart.vn - ĐT: 028 77727979 - sales@envimart.vn - Nền tảng cung cấp thiết bị, vật tư ngành nước và môi trường. Chuyên cung cấp vật tư cho dự án xử lý nước sạch, nước thải và môi trường. Envimart luôn đồng hành, tin cậy với đối tác nhà thầu, nhà tích hợp và người sử dụng.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
BREEDING METHODS FOR DISEASE RESISTANCE.pptxRASHMI M G
Plant breeding for disease resistance is a strategy to reduce crop losses caused by disease. Plants have an innate immune system that allows them to recognize pathogens and provide resistance. However, breeding for long-lasting resistance often involves combining multiple resistance genes
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
The Evolution of Science Education PraxiLabs’ Vision- Presentation (2).pdfmediapraxi
The rise of virtual labs has been a key tool in universities and schools, enhancing active learning and student engagement.
💥 Let’s dive into the future of science and shed light on PraxiLabs’ crucial role in transforming this field!
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxRASHMI M G
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills MN
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
1. DW = drinking water WW = wastewater municipal PW = pure water / power
IW = industrial water E = environmental C = collections FB = food and beverage
DATA SHEET
DR 2700™
Spectrophotometer
More than 130 Analytical Methods and Chemistries
The Hach DR 2700 Spectrophotometer can be used for
more than 130 analytical methods. (Test parameters are
listed on page 3.) All of the chemistries and supplies
needed for these tests are available from Hach. The
spectrophotometer can store up to 10 user programs
and 200 data points, along with the ability to define
sample and operator ID.
Use a USB Memory Stick to Update the Instrument
or Transfer Data
Easily update DR 2700 Spectrophotometer systems and
transfer measurement data with a USB memory stick. Use
it to stay current as Hach releases new test methods and
chemistries. For simple storage and analysis, measurement
data is stored in .csv format for compatibility with common
spreadsheet and data management programs.
Runs on Either Line Power or Battery Power
Use the DR 2700 spectrophotometer in the lab with regular
line power or in the field with the optional, rechargeable
lithium battery.
Small Footprint and Large Touch Screen Interface
The small footprint of the DR 2700 Spectrophotometer—
only 8.5 by 13 inches—lets it easily fit into any lab. The
touch screen display is intuitive to use and ergonomic in
design. Saves testing and training time by allowing users
to easily find and select program functions.
Accommodates Multiple Cell Sizes and Sample
Delivery Methods
The DR 2700 Spectrophotometer holds several types of
Hach cells—including 1-in. square cells, 1x5-cm cells, and
16-mm round cells. Three adapters are included with the
spectrophotometer for other vial types such as 1-in.
round/AccuVac® cells, multipath 1-in./1-cm cells, 1x1-cm
square cells, and Pour-Thru™ cells. The optional Pour-Thru
cell kit is ideal for rapid liquid methods when high
throughput of analysis is needed.
Features and Benefits
DW
WW
PW
IW
E
FB
Spectrophotometry
The Hach DR 2700 Spectrophotometer has an intuitive
touch screen user interface and accommodates a wide
range of pre-programmed water analysis methods.
2. Specifications*
2
1. The spectrophotometer instrument shall be a multiwavelength
spectrophotometer designed for laboratory or field analysis of
multiple analytes.
2. The instrument shall be capable of measuring the following
substances or characteristics: alachlor; aluminum; arsenic;
atrazine; barium; benzotriazole; boron; bromine; cadmium;
chloride; chlorine dioxide; chlorine; chromium; cobalt; color;
copper; cyanide; cyanuric acid; dissolved oxygen; fluoride;
formaldehyde; hardness; hydrazine; iodine; iron; lead;
manganese; mercury; molybdenum/molybdate;
monochloramines; nickel; nitrogen (as ammonia, nitrate,
nitrite, total nitrogen); chemical oxygen demand; oxygen
scavengers; ozone; polychlorinated biphenyls; phenols;
phosphonates; phosphorus; potassium; quaternary
ammonium compounds; selenium; silica; silver; sulfate;
sulfide; surfactants; suspended solids; tannin and lignin; total
organic carbon; tolyltriazole; total petroleum hydrocarbons;
trihalomethanes; toxicity; volatile acids; and zinc.
3. The following tests shall conform to USEPA-approved
methods: arsenic; chlorine (free); chlorine (total); chlorine
dioxide; chromium (hexavalent); copper; fluoride; iron (total);
lead; manganese; nickel; nitrogen (nitrite); chemical oxygen
demand; phenols; phosphorus (reactive); phosphorus (total);
sulfate; sulfide; and zinc.
4. The wavelength range of the instrument shall be 400 to
900 nm with accuracy of ±1.5 nm, resolution of 1 nm, and
maximum bandwidth of 5 nm.
5. The instrument, depending on the test selection, shall
automatically select the wavelength.
6. Readout modes shall include transmittance, absorbance, and
concentration.
7. The interface of the instrument shall be graphical with touch
screen.
8. The instrument shall provide graphical display and be capable
of printing test results.
9. The instrument shall be equipped with storage capacity for
200 data points (date, time, results, sample ID, user ID) and
10 user-defined calibrations.
10. Information stored in the instrument shall be capable of being
downloaded in standard report format.
11. The instrument shall be capable of accepting 1-in. (25.4-mm)
round cells/vials, 1-in. square cells, 13-mm round cells,
16-mm round cells, 1x5-cm cells, and Pour-Thru cells with
1-in. path.
12. Power requirement shall be line voltage or optional
rechargeable battery.
13. The instrument shall be warranted for one full year against
defects in materials and workmanship.
14. The instrument shall be model DR 2700 Spectrophotometer,
manufactured by Hach Company.
Engineering Specifications
Operating Mode
Transmittance (%), Absorbance, and
Concentration
Source Lamp
Tungsten
Pre-Installed Programs
More than 130
Available User Programs
10
Data Storage
200 points
Export Capability
.csv (comma-separated values)
file format
Wavelength Range
400 to 900 nm
Wavelength Accuracy
±1.5 nm
Wavelength Resolution
1 nm
Spectral Bandwidth
5 nm
Wavelength Calibration
Internal, automatic at power-on,
visual feedback
Wavelength Selection
Automatic; based on selected method in
all modes except stored methods
Enclosure Rating
IP41 with lid closed
IP42 with Protective Cover
Operating Temperature
10 to 40°C (50 to 104°F)
Operating Humidity
80% relative humidity, non-condensing,
maximum
Storage Requirements
Temperature: -25 to 60°C (-13 to 140°F)
Humidity: 80% relative humidity, non-
condensing, maximum
Power Requirements
Line: 100 to 240 V; 47/63 Hz;
automatic changeover
Battery: Lithium-Ion 11 V/4400 mAh
Interface
USB 1.1 (10 ft. (3 m) cable, maximum)
Languages
English, French, German, Italian,
Spanish, Portuguese, Korean, Japanese,
Chinese, Czech, Danish, Dutch,
Hungarian, Polish, Romanian, Russian,
Slovak, Swedish, and Turkish
Connections
USB Master 1x
USB Slave 1x
Sample Cell Compatibility
1-inch square
1-inch round
1-cm square
1x5-cm
13-mm round
16-mm round
Multipath 1-inch/1-cm
Pour-Thru™ with 1-in. path length
Accessories
Included:
– 1-in. square matched glass
sample cells
– Cell adapters for 1-inch
round/AccuVac cells, 1x1-cm cells,
and multi-path 1-inch/1-cm cells
– Universal power supply, 100 to 240V,
47/63Hz, with plug adapters for EU,
GB, US, China
– Protective cover for storing adapters
Optional:
– Hach Pour-Thru cell
– External USB keyboard
– DataTrans™ Software
Dimensions
216 x 132 x 330 mm (8.5 x 5.2 x13.0 in.)
Weight
Without battery: 4.0 kg (8.8 lbs.)
With battery: 4.3 kg (9.5 lbs.)
*Specifications subject to change without notice.
3. Available Tests
The following table lists available tests and overall ranges for the Hach DR 2700 Spectrophotometer. The ranges may represent
more than one available test for the instrument. Consult your Hach representative, customer service, the Hach Products for
Analysis catalog (Lit. #2436), the Hach Laboratory and Field Products for Water Analysis catalog (Lit. #2401), or the Hach web
site at www.hach.com for complete details of all available tests for this instrument.
3
Parameter Range
Alachlor Low ppb
Aluminum 0.002 to 0.800 mg/L
Ammonia, Nitrogen 0.015 to 50.0 mg/L
Arsenic 0.020 to 0.200 mg/L
Atrazine Low ppb
Barium 2 to 100 mg/L
Benzotriazole 0.2 to 16.0 mg/L
Boron 0.02 to 14.0 mg/L
Bromine 0.05 to 4.50 mg/L
Cadmium 0.7 µg/L to 300 mg/L
Carbohydrazide 5 to 600 µg/L
Chloramine, Mono 0.04 to 10.0 mg/L
Chloride 0.1 to 25.0 mg/L
Chlorine Dioxide 0.01 to 1000 mg/L
Chlorine, Free 0.02 to 10.0 mg/L
Chlorine, Total 2 µg/L to 10.0 mg/L
Chromium, Hexavalent 0.010 to 1.00 mg/L
Chromium, Total 0.01 to 0.70 mg/L
Cobalt 0.01 to 2.00 mg/L
Color 15 to 500 units
COD (Oxygen Demand, Chemical) 3 to 15,000 mg/L
Copper 1 µg/L to 5.00 mg/L
Cyanide 0.002 to 0.240 mg/L
Cyanuric Acid 5 to 50 mg/L
DEHA (Diethylhydroxylamine) 3 to 450 µg/L
Dissolved Oxygen 6 µg/L to 40 mg/L
Erythorbic Acid (Isoascorbic Acid) 13 to 1500 µg/L
Fluoride 0.02 to 2.00 mg/L
Formaldehyde 2 to 500 µg/L
Hardness, Total 4 µg/L to 4.00 mg/L
(Calcium and Magnesium as CaCO3)
Hydrazine 4 to 600 µg/L
Hydroquinone 9 to 1000 µg/L
Iodine 0.07 to 7.00 mg/L
Iron, Ferrous 0.02 to 3.00 mg/L
Iron, Total 0.009 to 3.00 mg/L
Parameter Range
Lead 3 µg/L to 2.00 mg/L
Manganese 0.006 to 20.0 mg/L
MEKO (Methylethylketoxime) 15 to 1000 µg/L
Mercury 0.1 to 2.5 µg/L
Molybdenum, Molybdate 0.02 to 40.0 mg/L
Nickel 0.006 to 6.00 mg/L
Nitrate, Nitrogen 0.01 to 35 mg/L
Nitrite, Nitrogen 0.002 to 250 mg/L
Nitrogen, Total 0.5 to 150 mg/L
Nitrogen, Total Inorganic 0.2 to 25.0 mg/L
Nitrogen, Total Kjeldahl 1 to 150 mg/L
Ozone 0.01 to 1.50 mg/L
PCB (Polychlorinated Biphenyls) Low ppb
Phenols 0.002 to 0.200 mg/L
Phosphonates 0.02 to 125 mg/L
Phosphorus, Acid Hydrolyzable 0.06 to 3.50 mg/L
Phosphorus, Reactive 19 µg/L to 100 mg/L
(Orthophosphate)
Phosphorus, Total 0.06 to 100 mg/L
Potassium 0.1 to 7.0 mg/L
Quaternary Ammonium Compounds 0.2 to 5.0 mg/L
Selenium 0.01 to 1.00 mg/L
Silica 3 µg/L to 100 mg/L
Silver 0.005 to 0.700 mg/L
Sulfate 2 to 70 mg/L
Sulfide 5 to 800 µg/L
Surfactants, Anionic (Detergents) 0.002 to 0.275 mg/L
Suspended Solids 5 to 750 mg/L
Tannin and Lignin 0.10 to 9.00 mg/L
TOC (Total Organic Carbon) 0.3 to 700 mg/L
Tolyltriazole 1.0 to 20.0 mg/L
Toxicity 0 to 100% Inhibition
TTHM (Trihalomethanes, Total) 10 to 600 µg/L
TPH (Total Petroleum Hydrocarbons) Threshold, low ppm
Volatile Acids 27 to 2800 mg/L
Zinc 0.01 to 3.00 mg/L