Water Quality & Instrumentation - Page 80

Manufacturer: Thomas Scientific Brand: WTW Model: 600544

Nephelometric or transmittance measuring-the nephelometric measurement at 90° scattered light is advantageous for lower turbidity, whereas the transmission measurement at 180° is beneficial for medium to high turbidity values: With increasing turbidity, restray and scattering effects between particles are growing bigger. The reduction of light intensity in this case leads to a more accurate result than a 90° nephelometric measurement. Therefore, lab meters for high values are equipped with several measuring options: ratio modes calculate the final result from different measured angles. For ratiometric measurements, there is no specific standard method to be followed; rather, procedures are established by the application or industry. White light has a higher sensitivity for small particles, however, the inherent coloration of the solution has a stronger disturbing effect in this case. The IR measurement is required by DIN ISO, the white light measuring by US EPA.

Manufacturer: Invacare Corporation Brand: Invacare

Disposable probes are designed to ensure that the probe does not fall off during the study - they contain an adhesive-style wrap that fits around the patients finger. They can be used for multiple use.Available in two sizes: Adult and PediatricAt Invacare, you will find everything you need for complete in-home respiratory monitoring.In addition, Invacare a full line of probes, including disposable probes, ear probes and wraps. Invacare offers a wide selection of pulse oximetry accessories including carrying cases, computer interface cables, software and more.10 Each / Case

Manufacturer: Oakton Instruments Brand: Oakton Instruments

Great for water, laboratory or plant use, the Oakton WD-35425-05 PT Testr 35 features single-junction pH electrodes for longer life and wider range of sample compatibility. Pin-style conductivity sensors feature stainless steel electrodes for chemical resistance and durability. Replaceable sensor module saves you money by reusing the meter body. Advanced features of the WD3542505 include auto-shutoff, user-adjustable temperature coefficient, self-adjusting TDS and salinity factor, and low-battery indicator. Up to 5 point pH calibration with NIST or USA autobuffer recognition

Manufacturer: Globe Scientific Brand: Globe Scientific

Globe Scientific Mira Cuvettes Segments Rack-Pack #5123, Case of 450

Manufacturer: Milwaukee Instruments Brand: Milwaukee

The Milwaukee Mi306 waterproof portable logging meter with probe displays conductivity, total dissolved solids (TDS), or salinity with temperature on the dual-measurement screen for a range of field testing applications. Automatic ranging for electrical conductivity (EC) and TDS sets the meter to the scale with the highest possible resolution. The auto-endpoint feature freezes the display automatically when the reading is stable. Choose from Automatic Temperature Compensation (ATC), Manual Temperature Compensation (MTC), or No Temperature Compensation (NOTC). The temperature coefficient value is user-selectable. Up to 250 data records can be stored, with logging on demand or auto-logging and an RS-232 port for data transfer to a computer. When the batteries are too weak to take the reading properly, the meter shuts down. The meter has an optional shut-off after five minutes of inactivity.The housing of the Mi306 meter is rated to IP 67 level of protection against dust and short periods of immersion in water. The 4-ring MA8513D/1 probe performs conductivity readings by applying an alternate current that creates a variable voltage. Accessories included with the meter are the MA814D/1 probe with DIN (Deutsches Institut für Normung) connector and cable, calibration solution, application software, and RS-232 connection cable.SpecificationsEC range (auto-ranging)0.0 to 29.99ΩS/cm;30.0 to 299.9ΩS/cm;300 to 2,999ΩS/cm;3.00 to 29.99mS/cm;30.0 to 200.0mS/cm;Up to 500.0mS/cm actual conductivity (the conductivity or value without temperature compensation)EC accuracy+ or – of reading (+ or – 0.05 ΩS/cm or 1 digit, whichever is greater)TDS (auto-ranging)0.00 to 14.99mg/L;15.0 to 149.9mg/L;150 to 1,499mg/L;1.50 to 14.99g/L;15.0 to 100.0g/L;Up to 400.0g/L actual TDS (the TDS value without temperature compensation) with 0.80 factorTDS accuracy+ or – 1% of reading (+ or – 0.053ppm or 1 digit, whichever is greater)Salinity (NaCl) range0.0 to 400.0%Salinity (NaCl) accuracy+ or – 1% o...

Manufacturer: General Tools Brand: General Tools Model: DOM551SD

General's Patented DOM551SD Data Logging Dissolved Oxygen Meter with Excel Formatted SD Card accurately measures dissolved oxygen concentration of liquid or air. Uses heavy-duty Polarography oxygen probe and precisely measures dissolved oxygen from 0 to 20 mg/L, as well as liquid temperature. It is easy to calibrate, supports automatic and manual data logging and time-stamps and stores measurements on SD memory cards. The sampling time is settable from 1 second to 9 hours. Features minimum/maximum memory and data hold. Automatically compensates for altitude and salt content of liquids. Features a 1.5 x 2.0 inch backlit liquid crystal display. Includes hard carrying case, oxygen probe, probe-filling electrolyte, two spare probe heads and diaphragm set, 2 GB SD memory card, user's manual and 1 Year Limited Warranty. Power source is 6 AA batteries or optional 9-VDC adapter.GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools. For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction. WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLS

Manufacturer: Thomas Scientific Brand: Biotek Instruments Inc Model: 6880G81EA

BioTek Instruments manufactures microplate instrumentation and software for life science research. The company, founded in 1968, is headquartered in Winooski, VT.

Manufacturer: HACH COMPANY Brand: Hach Company Model: LZV813

Hach 2100Q and 2100Qis Portable Turbidimeters provide confidence your measurements are right every time. On-screen assisted calibration and verification save you time and ensure accuracy. With an easy-to-follow interface, complicated manuals are not needed to perform routine calibrations. Single-standard RapidCal calibration offers a simplified solution for low level measurements. Data transfer with the 2100Q is simple, flexible, and doesn’t require additional software when used with the optional USB + Power module. All data can be transferred to the module and easily downloaded to your computer with a USB connection, providing superior data integrity and availability. With two different module options, you can customize connectivity and power to meet your unique needs.

Manufacturer: Datalogic Brand: Datalogic

EofC Overnight Replacement Comprehensive, 1 Year Renewal

Manufacturer: Shanghai Sanxin Instrumentation Brand: Apera Instruments, LLC Model: AI461

The Apera Instruments SX716 Portable Dissolved Oxygen Meter is an outstanding combination of the advanced electronics and sensor technologies. The meter can measure the parameters of DO and temperature of water solution with high accuracy. It is the most economical choice of a high-quality portable DO meter with a polarographic electrode. It is suitable for applications in the mining industry, power plant, environmental monitoring, and etc., especially good for in-field use. With its built-in microprocessor chip, elegant design, multi-functions, and user-friendliness, this meter has the following features: The intelligent functions of automatic calibration, automatic temperature compensation, data storage (100 groups), function setting, auto power off, and low voltage display etc. The meter adopts digital filter technology to intelligently improve meter’s response speed and accuracy. Smile icon will appear when reading is stable. Equipped with a polarographic DO electrode (2m cable) with built-in temperature and salinity sensors, which allows DO measuring mode to have auto temperature and auto salinity compensation and manual Barometric pressure compensation. It’s easy to use and accurate to measure. The Polarographic DO electrode has a special electrode calibration cap. The electrode polarization only takes 3-5 minutes. Electrode adopts a combo-style membrane cap, which is very convenient to use. Each DO electrode comes with three backup membrane caps. Meter's circuit board adopts SMT film-covering technology to improve meter’s performance reliability. Meter’s LCD has clear and bright backlit display. The meter is IP57 waterproof and dustproof. Comes with a Complete Test Kit and a TWO-YEAR Warranty for the meter. The company has designed and manufactured scientific analytical instruments such as meters and sensors for pH, conductivity, turbidity, and DO for over 25 years.