BOD ÖLÇÜM CİHAZLARI
according to EN 1899-1/EN 1899-2; official EPA method
- with ProfiLine Oxi 197i see p. 65
|"BOD self-check measurement"|
worldwide approved method according to the self-check regulations
- OxiTop® Control see p. 69
|OxiTop® Control OC 110 for special measurements see p. 70/74
- Biogas determination
- Soil respiration
|With inoLab® BSB/BOD 740|
|flexible and powerful
This laboratory oxygen meter has been specially developed for BODn measurements.
BOD measurements are determined by regulation EN 1899-1 and is EPA approved.
You can store up to 7 of your own routines for frequently occurring dilution ratios. A
maximum of 30 measuring samples each with 18 dilutions allow the management
of up to 540 diluted samples. The inoLab® BSB/BOD 740 can also be used as a
conventional high-end oxygen meter (For technical data such as inoLab® Oxi 740
refer to page 33).
|With ProfiLine Oxi 197i|
Laboratory oxygen meter ProfiLine Oxi 197i with self-stirring
|With OxiTop® and OxiTop® Control|
The advantages of OxiTop® and OxiTop® Control: simple operation, improved
|OxiTop® Complete Sets|
|for 6 or 12 Measuring Vessels|
|The complete packages have been assembled so that they contain everything necessary to carry out the measurements. The make up of each package depends on the application and varies by number of vessels, controllers and utensils for sample preparation. Special stirring platforms were developed in order to maintain a constant temperature and guarantee optimum oxygen distribution in the sample. These stirrer platforms have space for either 6 or 12 standard bottles or 6 large vessels for special applications.|
|BOD self-check measurement|
OxiTop® IS 6, IS 12
|Complete packages for 6 or 12 simultaneous measurements
Measurement using OxiTop® is based on pressure measurement in a closed system: microorganisms in the sample consume the oxygen and form CO2. This is absorbed by NaOH, creating a vacuum which can be read directly as a measured value in mg/l BOD.
|BOD self-check measurement - for a larger number of samples|
OxiTop® Control 6, OxiTop® Control 12
of up to 100 samples
Automatic sample ID
Worldwide approved method
|The Controller OC 100 and OC 110|
. Simultaneous sample management with option of grouping up to 100 OxiTop®-C measuring heads.
. Data call-up of one parallel sample with statistical evaluation and as individual data.
. Automatic calculation and graphical display of BOD value.
. Data transfer even through glass doors.
. Protocol and documentation of data via Achat OC communication program in combination with a PC
. GLP and AQS with inspection intervals for calibration with
the OxiTop® PM calibration tablets
|OxiTop®-C Measuring Head|
|. Instead of the display and keys, the OxiTop®-C measuring|
head has an infrared interface with which it communicates
with Controller OC 100 or OC 110. By "pointing" the
controller at an OxiTop®-C measuring head it can be
identified and started, data can be called up or deleted
and sampling progress can be displayed...
. Storage racks
For safe storage of OxiTop® measuring systems and OxiTop®-C measuring heads, for 6 measuring heads each.
. Marking rings
For identification of BOD bottles for OxiTop® instruments.
with OxiTop® Control OC 110
|The investigation and monitoring of biological cleaning treatment processes are becoming more and more important with respect to the environmental requirements such as wastewater treatment, soil remediation and waste treatment.|
|Determination of soil respiration|
OxiTop® Control B6 / BM6
|Soil respiration measurements are used for forecasting, surveying
and checking remediation work, for biodegradability measurements
of substances (pesticides, fungicides, fertilizers, etc.) as
well as for carrying out toxicity tests.
|Determination of biodegradability|
OxiTop® Control A6 / A12 and S6 / S12
The determination of the biodegradability should be checked before "new" chemicals
The CO2 produced is removed from the gas space by means of an absorber so that
OxiTop® Control AN6 / AN12
|Anaerobic degradation processes take place in the absence of oxygen. In order to be able to fill the gas space above the sample with inert gas the measuring bottle has a septum sealed nozzle. When anaerobic degradation has taken place the dissolved CO2 can be driven off and then removed from the gas space by means of a CO2 absorber. The resulting pressure difference is proportional to the CO2 concentration, the remaining overpressure is proportional to the methane concentration. The degradation process can be comfortably followed in the "pressure" operating mode.|
|Thermostat box with forced air circulation
for 68 °F (tolerance 67.1 - 68.9 °F / 20 ±0.5 °C)
OxiTop® Box is a benchtop model with hinged clear-view
cover which can accommodate a maximum of either 12
OxiTop® simultaneous measurements or 20 Karlsruhe bottles.
To incubate samples at a constant, desired temperature during the reaction period, a thermostat cabinet is necessary. WTW offers thermostat cabinets in various sizes with a variably adjustable temperature range of 50 °F - 104 °F (10 °C - 40 °C) and a power supply of 230 V/50 Hz. Temperature accuracy lies at ±1 °C deviation from the set temperature.