Water Quality & Instrumentation - Page 129

Manufacturer: Thomas Scientific Brand: Molecular Bio Products (Auto Equip) Model: 1424922

Thermo Scientific Fluoro Filter for Fluoroskan Ascent Micro plate Fluorometer.

Manufacturer: YSI Brand: YSI

The YSI 550A-12CC instrument is a dissolved oxygen (DO) and temperature meter for measuring DO in fresh, sea, or polluted water in the field, with a 12’ cable-probe assembly and a backlit LCD to enable reading in dark or dimly lit areas. This microprocessor-based, digital meter has automatic temperature compensation for DO, automatic salinity compensation (0 to 70ppt) for DO, and altitude compensation for calibration. The weighted, quick-sinking polarographic probe has a field-replaceable electrode module and screw-on cap membrane. It runs on 4 alkaline C-cell batteries (included), has a waterproof case with Ingress Protection 67 (IP67), and has European Conformity (CE) certification. DO meters are commonly used in water-quality testing applications. SpecificationsDO (%) range0 to 500%DO (%) resolution0.1% air saturation or 1% (selectable)DO (%) accuracy0 to 200%: + or - 2% of reading or 2% air saturation, whichever is greater; 200 to 500%: + or - 6% of readingDO range (mg/L)0 to 50 mg/LDO (mg/L) resolution0.01 mg/L or 0.1 mg/L (selectable)DO (mg/L) accuracy0 to 20 mg/L: + or - 0.3 mg/L or 2% of reading, whichever is greater; 20 to 50 mg/L: + or - 6% of readingTemperature (°C or °F) range, resolution, and accuracy-5 to +45°C, 0.1°C, + or - 0.3°CDimensions9 x 4.7 inches / 22.9 x 11.9cm (H x W)Weight (with batteries)2 lb. / 0.91kgH is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right.p> Dissolved oxygen (DO) meters measure the amount of dissolved oxygen present in water. The amount of DO helps to determine, for example, drinking water quality, the health of lakes or streams, and aquatic organism sustainability. A probe, also called a sensor or electrode, is inserted into the sample to perform the measurement, and the results appear on the meter display. Applications include sewage and water treatment plants, pollution control, fish farms, and various types of manufacturing. YSI manufactures instruments, sensors, and software for...

Manufacturer: Thomas Scientific Brand: YSI Model: 626400

YSI ProOBOD probe uses optical measurement technology for BOD applications. Optical technology provides greater measurement stability, and reduces probe maintenance and calibration costs for long-term savings. Auto-stirring mechanism provides faster response time and ensures a representative sample. OBOD probe has a keyed military spec connector design allowing the OBOD to be easily removed from the meter. Rubber overmolding allows for comfortable handling from any angle. Optical DO technology reduces maintenance Smart sensor retains calibration-no need to recalibrate when switching instruments. Fits standard 300 mL US/Japan or International BOD bottles. Self-stirring probe ensures a representative sample and improves response time

Manufacturer: Unico Brand: Unico

S1100 Series is a 20nm model and is designed for use with 1/2" round tubes or 10mm square cuvets. Optional tube holders are also available for COD, 3/4" and 1" round tubes. An adapter is supplied at no additional charge for 10mm square cuvets. High quality silicon photodiode detector and 1200 lines/mm grating assures high performance. One-touch blanking and built-in, automatic filters for easy operation. Large digital display allows quick and easy readings. Optional Windows® XP/7 software for easy data collection and application expansion to Standard Curve and Kinetics, Abs. and %T. Data can be easily exported to Microsoft Excel® for further processing and analysis. Model S1100 measures Absorbance, Transmittance; standard includes a USB data port. Each Series 1100 Spectrophotometer comes complete with a manual, 12 round optical glass cuvets, a square cuvet adapter, and dust cover.

Manufacturer: Harvard Bioscience Brand: Biochrom WPA Model: 80-3000-45

The Biochrom WPA CO8000 is a robust, easy to use instrument dedicated to the measuring of the density of cells in suspension such as E. Coli, yeast, cells and other cell cultures. This hand held instrument has an integral battery allowing it to be taken to where the cell cultures are growing e.g. in incubation cabinets, under anaerobic conditions or even in a fume hood or safety cabinets. This robust instrument will accept a variety of cuvettes and tubes- including 10, 12, and 16mm diameter test tubes meaning it can be used with Erlenmeyer side arm flasks. With no warm up time, just switch it on and it’s ready to use giving you results that are comparable to larger, more expensive spectrophotometers. The cell density of the cultures can be measured and the results stored in the memory. The results are given in Absorbance Units (OD). Once all measurements are taken, the up to 99 sample results can be viewed on the easy to read screen or the instrument can be connected to a PC or printer and the results downloaded. This low maintenance instrument uses an indefinite life LED with fiber optics and no filters. The rechargeable battery automatically recharges when connected to the mains and allows up to 1 month's normal use (under normal conditions) on a single charge. It is easily cleaned with ethanol or sterilized with formaldehyde or ethylene oxide. It is important to note that cell cultures are turbid samples, so the Absorbance (OD) measured is due to light scattering, and not due to molecular absorption. Clumping together of cells will also affect readings, so the medium they are suspended in will also make a difference. This means that the actual reading obtained is very dependent on the collecting area of the detector after the sample and the optical geometry of the system. These vary depending on the make and model of instrument, so differences in readings between types of instruments are to be expected.

Manufacturer: YSI Brand: YSI

Measure temperature and dissolved oxygen simultaneously using highly accurate thermistors and YSI's proven polarographic technology for dissolved oxygen. The fastest DO response times on the market. Measurements are fast and easy with one-hand operation, an easy-to-use backlit display, automatic push-button calibration, and a weighted, quick-sinking probe. The YSI550A DO has a built-in calibration chamber, low-battery indicator, direct salinity, and altitude compensation. The instrument provides simultaneous readings of oxygen and temperature. Dissolved oxygen readings are automatically compensated for temperature. The PE membranes are also faster responding and require far less flow dependence. The replaceable electrode decreases any down time due to old or damaged electrodes. Simply unscrew the old electrode, replace it with a new one, and calibrate. No need to send it in or to replace the whole cable assembly. Cables: 50 foot lengths. Medium: fresh, sea, or polluted water. Parameter Compensation: automatic temperature compensation for dissolved oxygen, automatic salinity compensation with manual salinity input from 0-70 ppt for dissolved oxygen, altitude compensation for calibration. Power: 4 alkaline C-cells; Over 2000 hours at 25 degree C. Dissolved Oxygen (Percent): steady-state polarographic sensor, 0 to 500 percent air saturation range, 0 to 200 percent: +/-2 percent of reading or 2 percent air saturation, whichever is greater; 200 to 500 percent: +/-6 percent of reading accuracy. 0.1 percent air saturation or 1 percent; selectable resolution. Dissolved Oxygen (mg/L): Polarographic sensor, 0 to 50 mg/L range, 0 to 20 mg/L: +/-0.3 mg/L or 2 percent of reading, whichever is greater; 20 to 50 mg/L: +/-6 percent of reading accuracy, 0.01 mg/L or 0.1 mg/L; selectable resolution. Temperature: thermistor sensor, -5 to 45 degree C range, +/-0.3 degree C accuracy, 0.1 degree C resolution. Measures 9" length by 4-11/16" width.

Manufacturer: YSI Brand: YSI Model: 251105Y

The pHotoFlex line of colorimeters is the newest addition to YSI's full range of colorimeters. These rugged, waterproof, multiparameter colorimeters are ideal for laboratory and field testing. The instruments feature a large, backlit display, waterproof rating, data logging with the ability to export data to a computer using LSdata software, user-defined programs and a 2-year warranty.

Manufacturer: Thomas Scientific Brand: Molecular Bio Products (Auto Equip) Model: 1424202

Thermo Scientific Fluoro Filter for Fluoroskan Ascent Micro plate Fluorometer.

Manufacturer: Thomas Scientific Brand: Thermo Chromatography Model: DWA-926

Thermo Brand Deuterium Lamps offer Best-in-Class spectral stability as well as superior lamp lifetime to insure that you get full value from each and every lamp. These lamps are engineered to be sure you get the right fit for your instrument every time. Low cost long-lasting deuterium lamps to fit most spectrophotometers and detectors.

Manufacturer: YSI Brand: YSI

The YSI 55 instrument is a handheld dissolved oxygen (DO) meter for field use, with a backlit LCD to enable reading in dark or dimly lit areas, and probe that is a non-detachable polarographic sensor, with a 25’ cable. The probe body has stainless steel to add durability and sinking weight. The meter has automatic temperature compensation, manual salinity compensation (0 to 40 ppt), and altitude compensation (0 to 10,000’). It runs on six AA alkaline batteries (included), is European Conformity (CE) compliant, and is water-resistant with Ingress Protection 65 (IP65). DO meters are commonly used in water-quality testing applications. SpecificationsDO (%) range0 to 200% air saturationDO (%)accuracy+ or - 2% saturationDO (%)resolution0.1% air saturationDO (mL) range0 to 20 mg/LDO (mL) accuracy+ or - 0.3 mg/LDO (mL) resolution0.01 mg/LTemperature range-5 to 45°CTemperature accuracy+ or - 0.2°CTemperature resolution0.1°CWeight0.77kg / 1.7 lbDimensions24.13 x 8.89 x 5.6cm / 9.5 x 3.5 x 2.2 inches (H x W x D)H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Dissolved oxygen (DO) meters measure the amount of dissolved oxygen present in water. The amount of DO helps to determine, for example, drinking water quality, the health of lakes or streams, and aquatic organism sustainability. A probe, also called a sensor or electrode, is inserted into the sample to perform the measurement, and the results appear on the meter display. Applications include sewage and water treatment plants, pollution control, fish farms, and various types of manufacturing. YSI manufactures instruments, sensors, and software for environmental water quality monitoring and testing. The company, founded in 1948, is headquartered in Yellow Springs, OH.What’s in the Box?YSI 55 meter25’ cable and probe(6) AA alkaline batteries