40 Water/Wastewater Lovibond® BOD-OxiDirect BOD Measurement
BOD-OxiDirect sensor system for permits exact and convenient measurement of the Biochemical Oxygen Demand (BOD) based on the respirometric princi-ple. All results are shown in a big display directly in mg/l BOD without the need for time-consuming conversion using factors. In addition, the measuring period can be user-selected between 1 and 28 days.
with Direct Sample Selection and Interface The Lovibond®
The unit measures BOD levels via the pressure drop in the closed system during a defined period of time. Following measurement, the results are stored and can be called up to the display at any time. The inductive stirrer system not only mixes the sample but also ensures optimum gas exchange between sample and gas space in the sample flask. Alongside the BOD unit to determine BOD levels, a BOD system contains sample flasks, a non-wearing inductive stirrer system, overflow measuring flask to measure the sample volume, nitrification inhibitor and potassium hydroxide as an absorbent.
Main advantages
•Direct display of BOD values in mg/l •Direct sample selection User-friendly handling •User-selectable measuring period
•Result memory for up to 28 days (BOD5, BOD7, OECD...) •Measuring ranges from 0-40 mg/l to 0-4000 mg/l BOD
•Accurate measurements Autostart function following temperature equalisation of the samples •Environment-friendly as mercury-free
•Automatic stirrer rod centring by the inductive stirrer system •Interface RS232
Reader Reply Card no 133
SpectroDirect – Spectrophotometer for Water and Waste Water Testing
The SpectroDirect is a modern single-beam spectrophotometer with an excellent price / performance ratio that is specifically designed for water testing. The instrument is equipped with a wide range of pre-programmed methods based on the proven range of Lovibond®
tube tests, tablet
reagents, liquid reagents and powder reagents (Vario Powder Packs). The light source is a tungsten halogen lamp with flash function. The lamp is switched on only momentarily during of the measurement process, so there is no need for a warm-up period. The SpectroDirect is ready to perform a self-test as soon as it is switched on.
The light passes through an entry slot to the monochromator, where it is split into spectral ranges. The monochromator is a holographically produced, transparent grating. The movable mirror ensures that light of the desired wavelength is focused automatically so that it passes through the exit slot, into the sample chamber and therefore through the water sample. The light that is not absorbed by the sample travels to the silicon photodiode detector. This signal is then evaluated by a microprocessor and shown as a result in the display.
New methods
Test methods are continuously updated to suit market requirements. New methods can be added easily and quickly using software available on our website. You can find updates for new methods and additional languages on our website at
www.tintometer.de. Applications •Waste Water •Drinking Water •"Industrial Process Water" Industrial Process Water •Scientific & Research •Governmental and Private Laboratories Advantages •Wavelength range from 330 to 900 nm •Interface RS232
•Large illuminated graphic display •Touch-sensitive film keypad with logical layout
•Use of round vials and rectangular cells of different sizes without adapter . •16 user-specific methods* •Fast, easy lamp change •Software updates free of charge
Reader Reply Card no 134
TurbiCheck with Infra-Red Light Source (EN ISO 7027)
The compact Lovibond®
infrared turbidity meter TurbiCheck
is designed to allow fast, precise on-site testing. The unit measures the scattered light at an angle of 90°, as stipulated in EN ISO 7027.
The wide measuring range from 0.01-1100 TE/F = NTU = FNU makes the instrument suitable for various applications, ranging from drinking water to waste water. As infrared light is used for measurement purposes, the unit can be used to test both coloured and colourless liquids.
Highlights
•Range 0.01 - 1100 NTU •Measurement with infrared light at an angle of 90° •Measurement of coloured liquids •Easy handling
•600 tests without battery change
Delivery Content TurbiCheck turbidity meter as described above, complete with 4 turbidity standards <0.1, 20, 200 and 800 NTU, battery and test vials, in case.
Order code: 26 60 20 Reader Reply Card no 135
IET
Annual Buyers Guide 2009
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