BOD

BOD measurement is an important measurement of the effects of domestic and industrial waste water on sewage plants and outflow points. The sensor system BD 600 is a 6 sample system that allows precise measurements of BOD based on the manometric principle. Manometric respirometers relate oxygen uptake to the change in pressure caused by oxygen consumption while maintaining a constant volume. Due to the modern integral pressure sensors, it is not necessary to use mercury for the measurements. The BOD values are stored automatically in the sensor memory at regular intervals and can be called up on the large-format display at any time without the need for time-consuming conversion using factors. This means that test series that end on a Sunday can be evaluated during the following week without any problem. Measurement series can be stored on USB stick/ SD card or transferred via USB cable to evaluate the data on a computer. The measurement period is user-selectable between 1 and 28 days to suit the application. While short measurement periods are useful for scientific applications, standard BOD measurements typically extend over a period of 5 days - and manometric determination of OECD, for example, generally takes place over a period of 28 days.

Scope of supply:

• BD 600, complete unit with 6 or 12* sensor heads and control unit with batteries
• Power supply unit incl. Y-cable for common power supply of BD 600 and stirring unit
• Inductive stirring unit
• 6 or 12* sample bottles
• 6 or 12* rubber gaskets
• 6 or 12* magnetic stirring rods
• 1 overflow flask, 157 ml
• 1 overflow flask, 428 ml
• 1 bottle, 50 ml potassium hydroxide solution
• 1 bottle, 50 ml nitrification inhibitor solution
• 1 instruction manual
• remote control

Specifications
Measuring principle:	respirometric, electronic pressure sensor
Ranges:	0 - 40, 0 - 80, 0 - 200, 0 - 400, 0 - 800, 0 - 2000, 0 - 4000 mg/l O2
Measurement period:	User-selectable, between 1 and 28 days
Power supply:	100-240 V, battery buffered or via power supply using Y-cable
Protection class:	IP 54 (sensor head)
Interface:	USB host port (USB stick), USB device port (computer), SD card
Clock:	Real time
Application:	BOD5 / BODF / OECD301F

The special bottle neck of the Karlsruhe bottles absorbs the water which is displaced by the stopper of the electrode. This construction guarantees clean working and ensures at the same time that the test results are not adulterated by unwanted entry of oxygen into the samples.

Alternative Clamps for oxygen determination bottles acc. to Winkler

The incubators from Lovibond® are designed for continuous tempering for different applications, mainly for the determination of BOD, the storage of wastewater samples, and the determination of enzymatic activity. The temperature range is +2°C up to +40°C and can be regulated in steps of 0,1°C. Temperature tolerance is defined with +/- 1°C respectively +/- 0,5°C (at 20°C). Low engergy consumption due to reinforced isolation. The interior of the cabinets is equipped with sockets for connecting stirrers. Illuminated LED display with actual / setpoint display.

• Temperature range 2 °C to 40 °C, continuously adjustable in steps of 0.1 °C
• Low power consumption
• Illuminated LED display of preset and current temperatures
• With natural refrigerant R600a
• Ideal for BOD determination at 20 °C
• Power sockets inside the incubator

Alternative Thermostatic cabinets TC, with glass door

OxiTop^®-IDS wireless measuring head with Bluetooth^® LE technology for operation with Multi 3620 IDS or Multi 3630 IDS. For routine BOD readings also operable without IDS multiparameter instrument. OxiTop^®-IDS/B with enhanced pressure range up to 1.5 bar and H₂S resistant pressure sensor for biogas measurement.

• Memory for 360 measuring points
• 3 operating buttons
• Backlit graphic LCD
• Control LED
• Volume pre-selection
• For routine BOD readings measurement duration selectable (1 to 7 days)
• Display of measuring curve
• Display of current readings
• Intermediate values available

Accessories Wireless module for WTW® measuring instruments Alternative Measuring heads OxiTop®-i

Measuring systems for the reliable determination of 90 to 999 ppm BOD. Complete with sensor heads and multi-position magnetic stirrer.

• The sensor heads are screwed directly onto the BOD bottles
• Automatic storage of 5 results in 24-hour intervals
• Measured readings in mg/l (ppm) can be read directly on the sensor at any time
• Protected against splashing water (IP 54)

Scope of supply BOD sensor system 6: 6-position magnetic stirrer, each 6 BOD sensors incl. batteries, 500 ml brown glass bottles, KOH reservoirs and magnetic stirring rods
Scope of supply BOD sensor system 10: 10-position magnetic stirrer, each 10 BOD sensors incl. batteries, 500 ml brown glass bottles, KOH reservoirs and magnetic stirring rods

Specifications
BOD range:	90 ... 999 ppm
Display:	LED (3 digits)
IP code:	IP 54

Accessories

With NS 19 cone glass stopper.

Karlsruher BOD bottle with NS19 conical ground joint.

With vent, level display and stopcock. Blue solid-coloured (for light protection). Additional lid for easier cleaning.

VD series: With distributor frits and compressed air connection without cooling coil.
VDT series: With distribution frits and compressed air connection, with internal stainless steel cooling coil and connection for recirculation thermostat. 2x connections inlet / outlet cooling water: 2x ¾" with screwed on ½" connection with nozzle approx. 13 mm. Third connection for ventilation with 6 mm nozzle.