TURBIDITY SENSOR - AQTU- 660NM.

The AQUAMATIC turbidity sensor AQTU-660NM is designed for detection of suspended solids or turbidity. The sensor operates in sea water, lakes or swimming pools, as well as in more inhospitable locations such as rivers, industrial process plants, settling tanks or sewage treatment works.
A special beam- and reflector construction allows the user to modify the instrument to the particular environment. It may be used for either profiling or monitoring. Maximum beam-length ¹/₂ meter.

The sensing element (the receiver) which is unaffected by ambient light or 50 Hz powered light, consists of a photo diode connected to a temperature compensated auto-range output amplifier.
The light source (the transmitter) is equipped with a special control to ensure constant output independent of age effects and temperature influence.

Features include a pressure stable and waterproof construction designed for easy maintenance at
sea. Small dimensions, high accuracy and good long time stability.

SPECIFICATIONS
Turbidity range : 100% - 0 % - (Calibration in other units available (NTU/FTU)).
Accuracy : + 0.2 % - (Path length dependent).
Repeatability : + 0.1 %
Response time - sensor : 3 m sec. - 63 % of accurate value.
Response time - electronic : 20 msec. - (200 msec. optional).
Resolution - 12 bit. : 0.03 %
Output - mantissa : 0 - 5 volt DC - special output available on request.
exponent : 0, 0.5, 1.0 and 1.5 volt DC as 10^o, 10¹, 10² and 10³.
Linearity : + 0.5 % per ^oC temperature sensitive.
Stability : Drift less than + 1.0% over 1 months.
Depth : 175 dbar or 250 psi. (max. 600 dbar profiling/300 dbar monitoring).
Detection of : Organic material (2 - 6 m) and non-organic material (0.2 - 0.6 m).
Vibration - Shock : 10 to 2000 Hz - 10 - 30 G in 10 m sec.


AQUAMATIC, Ellebrinken 99, 8520 Lystrup, Denmark, Phone: +45 86 17-31-44,
E-mail: aquamatic@aquamatic.dk