CORETAKER® The first core sampler to float. A hard plastic
handle makes it easy to grip Sludge Interface Detector
Portable sludge interface detector Raven Model SID-10200 Wastewater Centrifuge
Suspended solids % by volume in 15 minutes! Process Control Kit
Your turn-key solution for solids control in activated sludge
plants Settlometer Kit
Mixed liquor and aerobic digester sampling Sample Tubes
Raven sample tubes are available in 19mm diameter and 17mm
diameter. Brightly marked to indicate % volume
Process
Control Kit
Turn-Key solution for solids control in activated
sludge plants
With the instruments below, you’ll receive
a complete instruction booklet to implement this
easy and cost effective method in your plant.
Obtain quick and reliable estimates of the suspended
solids concentration in % by volume of mixed liquor
and return and waste sludge samples.
Calibrate
electronic online equipment. The Raven method
is the tangible baseline. Operators have hands-on
physical samples and the basic formulas to
quantify and document events occurring in
the process.
Under control, you will make
adjustments to return activated sludge (RAS)
flow and waste activated sludge (WAS) with
confidence
Calibrate
electronic online equipment. The Raven method
is the tangible baseline. Operators have hands-on
physical samples and the basic formulas to
quantify and document events occurring in
the process. 
