BOD Sensor - VELP sensor - Used Laboratory Equipment and New Lab Instrument Supplies, UK

BOD Sensor - VELP

The micro-organisms already present or purposely seeded in a water sample containing biodegradable organic matter, use oxygen for their biochemical processes and produce an equivalent volume of carbon dioxide. If the process develops in a closed system and the carbon dioxide is absorbed by a strong alkali, a progressive decrease of internal pressure can be measured. The standard incubation time at 20C for a reliable measurement of BOD is now universally considered 5 days and the related value is then called BOD5. This corresponds with good reproducibility, considering all the aspects of the technique itself, to 70% of the so called BOD last, that is the value at the complete oxidation, that occurs after a period of 21-28 days.

Biochemical Oxygen Demand

The BOD Sensor manometric equipment has been developed by VELP according to international safety rules for workers and environment protection. An innovative, microprocessor controlled electronic measuring system (without mercury) allows BOD (Biological Oxygen Demand) determinations by manometric technique. The BOD Sensor has an ergonomic design developed and optimised for a handy use, easily reading and data retrieval. It is produced with the most advanced manufacturing techniques. The unit is to be placed on the sample containing bottle and, operating through a pressure sensor and an electronic card, shows on a display the actual BOD values. Five BOD values are memorized at 24 hours intervals allowing determinations also during week ends. At any time the current BOD value can be shown on the display, also after the standard 5 days period. The BOD Sensor is free from external electric connection.

Suitable for

• EPA, APHA, AWWA, WEF

Specifications

• Instrument BOD Sensor Volts 6 VDC Code F102B0133
• Complete of 2 lithium batteries type CR2430 Code 10000039
• Upon request Sensor Check Code A00000135

The Velp BOD Sensor Set are manufactured to ISO 9001 standard and are CE approved. All equipment is Brand New and comes complete with operating manual and a 2 year guarantee.