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OxiTop ® Control B 6 measuring system

WTW benchtop meter OxiTop® Control B 6
WTW's meter to determine soil respiration OxiTop® Control B6
WTW's meter to determine soil respiration OxiTop® Control B6M

OxiTop® Control meter to determine soil respiration – lab procedure to determine the microbial soil respiration according to DIN ISO 16072

  • Different vessels for optimized adaptation to the application
  • Measurements for up to 99 days for special applications
  • Also suitable for AT4 measurements

The soil respiration measurement is used for the prognosis, inventory and control of remediation tasks, for biochemical degradation measurements of substances (pesticides, fungicides, fertilizer...) as well as to conduct toxicity tests.

This determination is possible with the OxiTop® Control System and special measuring vessel tested in practice with much precision, easily and at a reasonable cost.

For soil with higher CO2 development, the measuring vessel MG 1,0 is recommended. It has a larger opening (approx. 100 mm diameter) and you will easily be able to use large-volume CO2 absorber vessels for the subsequent quantitative CO2 determination.

To measure the soil respiration according to the AT4 directive, there is an especially designed package that contains measuring vessel with a capacity of 2.5 l as well as a special CO2 absorber with indicator.


Model Description Order no.
OxiTop®Control B 6 6 measuring points with 500 ml wide mouth bottle 208230
OxiTop®Control B 6M-2.5 6 measuring points for AT4 measurement 208231
OxiTop®Control B 6M 6 measuring points with 1.0 l container 208232

Technical Data

OC 110
Measuring range BOD standard and routine 0 to 4000 mg/l BOD
BOD special 0 to 400.000 mg/l BOD
Pressure 500 to 1350 hPa
Data sets (depends on measuring interval) 180 to 360 data sets per head
Measuring interval 0.5 h to 99 days
OxiTop®-C, OxiTop®-C/B
Measuring range 500 to 1350 hPa
Accuracy ±1 % v. Mw. ± 1hPa


Model Description Order no.
OxiTop® OC 110 Controller 208207
OxiTop®-C 6 6 Measuring heads 208822
OxiTop®-C 2 2 measuring heads 208823
OxiTop®-C measuring head 208830
OxiTop®-C/B Measuring head biogas 208831
AK 540/B Interface cable 902842
OxiTop® AD/SK Adapter/screw quiver for GL 45 thread 209016
OxiTop® AD Adapter 209017
OxiTop® SK Screw quiver 209018
NKI 500 CO2Absorber 209142
VS 45 Screw connection OxiTop® AD 209500
DI 45 Seal GL45 209501
ST-OxiTop® Storage rack for heads 209010
NHP 600 Sodium hydroxide pads 209140
NTH 600 Nitrification inhibitor 209331
OxiTop®PT Leakage test material 209334


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