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BOD-Measurement Technical data Meas. principle Inductive stirring system Manometric; mercury-free; electronic pressure sensor Ranges 0 - 40, 0 - 80, 0 - 200, [mg/l O 2 ] 0 - 400, 0 - 800, 0 - 2000, 0 - 4000 mg/l Accuracy* 0.5 % full scale at 20°C Applications BOD 5 , BOD 7 , OECD 301 F ... Result display Measurement parameter display Measurement period Auto result storage Storage interval Automatic start function Power supply BOD [mg/l]; 4 - digits ; 7 - segment LED BOD-range, volume, duration, time of measurement User-selectable, between 1 and 28 days Up to 28 results, depending on measurement period – hourly (1 day) – every 2 hours (2 days) – daily (3-28 days) – After temperature equalisation of samples – Can be switched off 3 alkaline-manganese batteries (“Baby” cells/size “C”) Battery life 1 year (normal use as BOD 5 meter – max. one reading a day); early warning before battery fails Interface RS 232 for printer or PC connection Clock Real-time clock Protection class IP 54 (sensor head) Dimensions 375 x 195 x 230 mm (L x W x H) including stirring unit Weight 3850 g, unit with bottles 5750 g, complete with stirring unit Housing ABS Approval CE * No standard is available to check the accuracy of respirometric oxygen uptake measurement. Tests with a glucose-glutamic acid solution having a known theoretical BOD have shown that the variation is approximately 5% in the range of 50…100 mg/l BOD, and 3% for higher range. Minimum Response or sensitivity of respirometric systems is about 0.05 … 1 mg/l. The microprocessor-controlled AQUALYTIC ® inductive stirring system is non-wearing and maintenance-free. In other words, there are no moving parts in the system. At regular intervals, the magnetic stirring rods are accelerated and slowed down again, taking them up to maximum speed and back down again. This ensures the centralization of the stirring rods. Stirring rods that move away from the centre of the bottle are re-centered quickly and reliably. The inductive actuation system guarantees maintenance-free operation (no need to replace drive belts or burnt-out drive motors) for many years. Highlights ■ Maintenance-free and non-wearing ■ Regular change in stirring speed ■ Automatic centering of stirring rods ■ No mechanical components in the stirring system Accessories Item Test set for AL606 We also supply a test set to check for correct operation of the AL606 BOD meter. The set contains 8 BOD CM1 test tablets that cause a defined oxygen consumption. The tablets are easy to use. Simply place a tablet in the BOD bottle, start the measurement process, read off the BOD value after 5 days, and then compare with the defined value. If this value is within the quoted tolerance, this means that the BOD measuring system is functioning correctly. Temperature equalisation during BOD measurement Order code Sensor head 2444430 BOD sample bottle 418644 Brown glass, 500 ml BOD sample bottles, Brown glass, 418645 500 ml, set of 6 bottles Cable for connection to a PC 2444440 serial 9-pins Inductive stirring system 2444451 for 6 samples, 110-240 V / 50-60 Hz Stirring rod 418637 Stirring rod remover 418638 Rubber gasket 418636 Chemicals: Potassium hydroxide solution 2418634 45 %, 50 ml Nitrification inhibitor (N-ATH) 2418642 50 ml Overflow flask, 21.7 ml 418664 Overflow flask, 56 ml 418655 Overflow flask, 94 ml 418656 Overflow flask, 157 ml 418657 Overflow flask, 244 ml 418658 Overflow flask, 360 ml 418659 Overflow flask, 428 ml 418660 Complete set 418654 Overflow flasks Test set, BOD CM test tablets, 418328 box with 8 tablets Temperature equalisation is essential prior to biological testing, as temperature has a major effect on biological activity. BOD measurements, for example, are always performed in a thermostatically controlled cabinet at a temperature of 20°C. For temperature equalisation, we recommend AQUALYTIC ® thermostatically controlled cabinets with a user-selectable temperature from 2°C to 40°C. 57 General Catalogue January 2010
Cabinets Thermostatically controlled incubators with standard / glass door Technical Data Design Models with glass door Fully insulated cabinet with universal temperature control unit Insulating glass door in an aluminium frame Temperature control unit The temperature controll unit fulfills the EMC requirements according IEC 61326 : Electrical equipment for measurement, control and laboratory use. Operation Splash-proofed keypad, 2 buttons with tactile feedback Highlights 58 Control range + 2 °C to + 40 °C, steps of 0.1 °C Climate class Temperature tolerance Display + 10 °C to + 32 °C, ± 1 °C, specified for a stirred 500 ml water sample in the centre of the cabinets. For BOD (T=20 °C ±0,5 °C) Backlit LED display Resolution 0.1 °C Fan Radial, output 320 m 3 /h Cooling/Heating Power supply Approval: Integrated powerful cooling and heating 230 V / 50 Hz CE ■ CFC free ■ Backlit Display ■ 2 °C to 40 °C ■ Adjustable in steps of 0.1 °C ■ 20 °C BOD determination ■ 4 °C Storage of waste water samples ■ 25 °C Enzyme activity (TTC test) ■ 37 °C Colony count Regularly updated information: www.aqualytic.com General Catalogue January 2010
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Content Photometer BOD Measurement
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Photometry Photometry 4 History Mor
Page 7 and 8: Photometry Photometer AL200 Reliabl
Page 9 and 10: Photometry Photometer AL200 8 Techn
Page 11 and 12: Photometry Photometer AL250 10 The
Page 13 and 14: Photometry Photometer AL250 Each AL
Page 15 and 16: Photometry Photometer AL250 Each AL
Page 17 and 18: Photometry Photometer AL250COD VARI
Page 19 and 20: Photometry Photometer AL400 Modern,
Page 21 and 22: Photometry Photometer AL400 Technic
Page 23 and 24: Photometry Photometer AL450 Dual Be
Page 25 and 26: Photometry Photometer AL450 24 Tech
Page 27 and 28: Photometry Spectrophotometer AL800
Page 29 and 30: Photometry Spectrophotometer AL800
Page 31 and 32: Photometry Reagents Development For
Page 33 and 34: Photometry Reagents Wave lengths λ
Page 47 and 48: Photometry Thermoreactors ET 108 /
Page 49 and 50: Photometry Reagents also suitable f
Page 55 and 56: BOD-Measurement BOD Measurement Sys
Page 57: BOD-Measurement Evaluation of measu
Page 61 and 62: Cabinets Spark-free* cabinets with
Page 63 and 64: Turbidity Meters Turbidity meters T
Page 65 and 66: Turbidity Meters Turbidity meter AL
Page 67 and 68: Turbidity Meters Turbidity meter AL
Page 69 and 70: Hand-Held Meters Hand-Held Meters S
Page 71 and 72: Hand-Held Meters 70 AL20pH Technica
Page 73 and 74: Hand-Held Meters Multi Parameter Ha
Page 75 and 76: Hand-Held Meters Hand-Held Meters S
Page 77 and 78: Hand-Held Meters MicroDirect (IP 67
Page 79 and 80: Flocculation Jar Tester Jar tester
Page 81 and 82: Rapid Tests MINIKIT Accurate and ea
Page 83 and 84: Rapid Tests AQUALYTIC ® Test Kits
Page 85 and 86: CHECKIT ® Comparator CHECKIT ® Co
Page 95 and 96: Comparator 2000+ Comparator 2000+ T
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Comparator 2000+ Comparator 2000+ T
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Applications of Reagents Parameter
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Index 116 Index A Alkalinity-m, tot
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Index S T Z Salinity Tablet Reagent
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