The AS16-N is a high-precision, single channel Near Infrared Range (NIR) absorption probe. The stainless steel turbidity probe, equipped with an Ingold-style port, is designed for use in vessels or inline applications.
The turbidity probe uses the light in the near infrared range (NIR) from 730 to 970 nm. A precisely defined, constant light beam penetrates the process medium. The attenuation of the light intensity, caused by absorption and/or scattering by dissolved and undissolved substances, is detected by a hermetically sealed photo diode.
The turbidity probe comes in six different optical path lengths (OPL) from 1 to 40 mm. The optical filter on the lamp side adapts the wavelength for specific applications and allows color-insensitive concentration measurements in the near infrared range (NIR). The turbidity probe AS16-N is available with a 100 mm extended insertion depth for larger vessels.
The seal-less, sapphire window design eliminates crevices and gaps to assure the highest level of sterility, cleanability and sensor integrity. The turbidity probe body demonstrates extreme durability and fulfills the CIP/SIP requirements demanded by ultra-sanitary process environments. NIST-traceable validation accessories are available as option for absolute measurement confidence.
Universal Turbidity Measurement with Probe Sensor C4000/AS16-N
NIR-Absorption
Typical Applications:
• Turbidity
• Filter Control
• Separator Outlet
• Large Process Pipes
Main Specifications:
Measurement Range: 0 - 4 CU
Various OPL‘s
Wavelength: 730 - 970 nm
Process Temperature: 0 - 100°C
Options: Validation, Long Version, Safety Port BT, Electro-Polished

Use with C4000 converter!