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BOD Measurement, WTW

OxiTop® complete packages are the first innovative mercury-free respirometric BOD measuring systems. Operation is very easy: BOD values can be measured up to 400,000 mg/l by taking pressure differential measurements in a closed sample system with a measuring head. The results are read off directly as a BOD value. The systems have an AutoTemp function for delayed start if the sample is too cold. The complete packages contain everything you need for BOD determination: from a high-grade stirring platform to sample bottles with measuring head, as well as all essential accessories and matching overflow graduated flasks.

1 OxiTop®

for "BOD self-checking measurements" according to DIN EN 1899-2 (H55)

  • For routine BOD measurement over 5 days, with automatic measured value storage. Other values can be called up by hand at any time.
  • Color coding of the measuring heads for inflow and outflow.
  • Measured values up to 4000 mg/l are read directly off the measuring head.
ArticleOrder No.
BOD self-check measurement OxiTop IS 680 81 68210

Inductive stirring system complete with 6 OxiTop® measuring systems including standard accessories
 
ArticleOrder No.
BOD self-check measurement OxiTop IS 1280 81 68211

Inductive stirring system complete with 12 OxiTop® measuring systems including standard accessories
 
ArticleOrder No.
BOD self-check measurement OxiTop IS 12-680 81 68212

Same as OxiTop® IS 12, but loaded with 6 OxiTop® mesauring systems and suitable for upgrading to 12 measuring systems


2 OxiTop® Control

with IR data transmission for "BOD self-checking measurements" according to DIN EN 1899-2 (H55) and special applications

  • OxiTop® control systems with infrared-controlled controller
  • Sample management for 100 samples with up to 12 parallel samples
  • Automatic issuing of sample number with check, evaluation and curve on graphic display
  • Convenient evaluation for standard and routine BOD (controller OC 100)
  • Special applications possible in addition (controller OC 110)
  • Running time can be set from 0.5 h to 99 days

Standard accessories:
amber sample bottles, barrods, stirring bar remover, NaOH pellets, rubber sleeves, one 164 ml and one 432 ml overflow graduated flask, 1 block of graph paper, nitrification inhibitor

 

Technical data:

Data sets per measurement:

180 to 360 (dependent on running time)

Running time of measurement:

0.5 hours to 99 days

Power supply:

3 mignon batteries (type AA); alkaline 1.5 V

Interface:

IR (infrared); RS 232 for PC communication

Ambient temperature:

storage -25°C to +65°C, operation +5°C to +40°C

Dimensions (H×W×D):

45 × 100 × 200 mm

Weight:

approx. 390 g


 

Applications

OxiTop® Control OC 100

OxiTop® Control OC 110

BOD routine

Single samples up to 4000 mg/l

Single samples up to 4000 mg/l

BOD standard

Parallel samples with statistical
evaluation up to 4000 mg/l
0.5 h - 99 days

Parallel samples with statistical
evaluation up to 4000 mg/l
up to 99 days

BOD special

-

Freely definable volumnes,
0.5 h - 99 days,
up to 400,000 mg/l BOD

Soil respiration

-

Free volume determination

OECD/aerobes

-

Free volume determination

Bio gas determination

-

Pressure mode p 500 – 1350 hPa
10 intermediate values


ArticleOrder No.
OxiTop® Control 680 81 68196

BOD measurement instrument for 6 measuring points, complete with OxiTop® OC 100 controller, OxiTop® IS 6 inductive stirring system for 230 V/50/60 Hz mains operation and 6 OxiTop® C measuring heads, incl. accessories
 
ArticleOrder No.
OxiTop® Control 1280 81 68198

BOD measurement device for 12 measuring points, complete with OxiTop® OC 100 controller, OxiTop® IS 12 inductive stirring system for 230 V/50/60 Hz mains operation and 12 OxiTop® C measuring heads, incl. accessories



Other complete packages for special applications on request.