BOD Sensor Velp analysis system

BOD Sensor is an extremely reliable innovative solution for the determination of BOD, without the us (more)e of mercury. Easy to use, fast and simple. It screws directly onto the bottle containing the sample and a pressure transducer microprocessor transfers the BOD value directly to the display (in mg / l) and automatically stored in the BOD sensor (5 measurements at 24 hour intervals, offering the possibility of making the analysis even during the weekend). The BOD value can also be obtained directly from the display at any time, even after five days. Measurement is available on 4 different scales - 90ppm, 250, 600 and 999 BOD. For higher values, the measurement can be measured by diluting the sample. The BOD Sensor System 6 is a complete package for analyzing 6 samples simultaneously, consisting of a 6-position stirring base, BOD sensors, dark glass bottles, carbon dioxide absorption caps and magnetic stir bars. The BOD Sensor System 10 is a complete package for analyzing 10 samples simultaneously, consisting of a 10-position stirring base, BOD sensors, dark glass bottles, carbon dioxide absorption undercaps and magnetic stir bars. The stirring base has been designed to meet the user's needs, it is comfortable, guarantees a high quality stirring and the small footprint allows to accommodate up to 5 bases of 6 positions (30 samples) or 3 of 10 positions ( 30 samples) in a VELP incubator (FOC 200E). Determine the BOD value in 5 steps! To better analyze the BOD values ​​with the innovative VELP Scientifica systems, based on the respirometric technique, capable of providing highly reliable results, just 5 easy and simple steps are enough: 1. Add the magnetic stir bar to the dark glass bottle, add the sample and place the CO2 trap filled with the necessary reagents 2. Incubate everything 3. Screw in the sensor 4. Monitor the activity of microorganisms 5. Read the BOD value (ppm or mg / l), based on the change in pressure inside the bottle due to the activity of microorganisms Technical features: Sensor display: 3-digit LED display Bod measurement: mg/l (ppm) directly on the display BOD scales: 90, 250, 600, 999, 4000 ppm, Higher values after dilution Bottle volumes:  500 ml Data storage: BOD values at 24h intervals Sensor construction material: Technopolymer Power: BOD Sensor System 6 2 W; BOD Sensor System 10 2 W Sensor battery type: CR 2430 Power supply: BOD Sensor System 6 Sensors: 2x3V lithium batteries Stirring Station: 230V / 50-60Hz or 115V / 60Hz BOD Sensor System 10 Sensors: 2x3V lithium batteries Stirring Station: 230V / 50-60Hz or 115V / 60Hz

Viscotek TDA 305 Triple Detector Array This was removed from a university lab where it was surplus t (more)o requirements. The unit powers up and the screen is working. It is in good cosmetic condition with minor marks.

This Leco AMA254 Mercury Analyzer was removed from a university lab where it was surplus to requirem (more)ents. The unit powers on and is in reasonably good cosmetic condition but there is some surface rust visible on some of the components inside the unit. The glass window has been previously damaged, but has been repaired to a good standard. The Quicksilver software has been loaded onto a PC and communicates with the instrument. Included with it are; Manuals: 1x AMA254 Advanced Mercury Analyzer Operating manualWindows version 5.03 1x LECO AMA254 Advanced Mercury Analyzer Instruction manualSoftware Version 4.0X 1X ALTEC Quality Control Report on AMA254The unit is in good cosmetic condition it is not clear if any bits of the report are missing. CDs: 1x LECO AMA254 Mercury AnalyzerVersion 4.04Part No. 159-136-404 1x AMA254 (CD copy)Version 5.0.3-3Ser No. 216051145 3x LECO Coal Reference Material contents weight 50g Part Nos.502-685Sulfur % 1.16 ± 0.05ppm Mercury 0.040 ± 0.008 502-686Sulfur % 4.16 ± 0.14ppm Mercury 0.065 ± 0.017 502-687Sulfur % 2.06 ± 0.07ppm Mercury 0.130 ± 0.011

15 stirring positions, 100% maintenance-free and wear-free by inductive 2mag-Magnetic-Drive concept  (more)for powerful mixing of solutions, power reserves up to 3,000 ml per stirring point, 100% synchronized speeds, jerk-free stirring even at low speeds. Fully encapsulated and hermetically sealed stainless steel housing, IP68, water-, dust-, and germproof, extremely robust construction and performance, easy to clean and maximum resistance, submersible in water- resp. oil baths, suitable for the use in CO2-incubators and ovens. Stirring points: 15 Stirring point distance: 65 mm Stirring volume/stirring point: 1 – 3000 ml Speed range: 100 – 1,600 rpm Stirring power (max.): 40 W Material housing: Stainless steel Permitted operation conditions HT-version:  up to +200°C in air, up to +95°C in water submerged Dimensions (WxDxH): 245 x 375 x 38 mm Weight: 9.5 kg

MARSHALL Select MS-VP250 Chemical Protected Diaphragm Vacuum Pump, 250 mbar Ultimate Vacuum 253 mbar (more) (190 Torr) Pumping Speed 12 L/Min Number of Heads 1 Head Features - Provides clean and uncontaminated air exhaust with a built-in filter - Automatic cooling exhaust system allows for 24-hour continuous use - Customizable vacuum and gas velocity settings for specific applications - TEFLON surface treatment protects against gas corrosion, enhancing durability - Delivers a pumping speed of 12 L/Min for effective operation - Achieves a vacuum level of 253 mbar (190 Torr) for efficient performance The MARSHALL Select MS-VP250 Chemical Protected Diaphragm Vacuum Pump is designed for efficient and reliable operation in environments that require clean and uncontaminated air exhaust. This pump features an oil-free design with a built-in filter, ensuring that the exhausted air remains free from contamination. The MS-VP250 is equipped with an automatic cooling exhaust system, allowing for continuous 24-hour operation, making it ideal for demanding laboratory and industrial settings. Its pressure-adjustable design enables precise control of vacuum and gas velocity to meet specific application requirements. The pump's TEFLON surface treatment provides robust chemical and corrosion resistance, ensuring durability even when exposed to harsh gases. With an ultimate vacuum of 253 mbar (190 Torr) and a pumping speed of 12 L/Min, the MS-VP250 delivers efficient vacuum performance. It features 6 mm inlet and outlet flanges, operating within a temperature range of 7°C to 40°C. The pump runs quietly with a noise level of less than 60 dBa, making it suitable for environments where low noise is essential. Its compact design, measuring 7.7 x 3.8 x 6.1 inches, and a weight of 7.6 kg, make it easy to fit into various setups. The pump is equipped with nitrile butadiene rubber valves for reliable operation and requires a motor power of 75W, compatible with electrical requirements of 110/220V, 50/60Hz. The MS-VP250's distinctive orange color not only enhances its aesthetic appeal but also signifies its robust anticorrosive and chemical resistance properties, making it a reliable choice for a wide range of vacuum applications.INCLUDED: The MARSHALL Select MS-VP250 Chemical Protected Diaphragm Vacuum Pump, 250 mbar includes: - Operator's Guide - Manufacturer's Documentation - 1 Year Manufacturer's Warranty

The offered instrument / system is fully functional tested and ready to use. FURTHER DETAILS TO FOLL (more)OW