AF56-F color sensor attached to a varivent sensor body comonly used in breweries

AF56-F color sensor mounted onto a sanitary thread flow cell

Color sensor mounted on a tri-clamp sensor body

AS56-F attached to a male sanitary thread sensor body

AF56-F Color Sensor

Single Channel Color Sensor

AF56-F is a high quality sensor for direct installation into pipelines measuring visible (VIS) light absorption of various liquid samples at a specific wavelength of 430 nm. The optical path length (OPL) can be individually configured to meet the process control requirements.

Used For

Color scale:
- CU (concentration units)
Color monitoring
- of CIP processes
- for interface detection in beverage production

The AF56-F is a precision color sensor which is designed for inline operation. Using light in the visible range (VIS) at 430 nm the AF56-F is used to measure color or color changes. A light reduction based on an increased intensity of the color is precisely detected.

Features

Benefits

Inline color measurement in demanding process conditions

No sampling or by-pass installation needed

Fast and accurate color measurement or color changes

Immediate detection of color changes to verify product quality

AF56-F
Schematic	Sensor Body Windows Filter Measurement detector Optics module Lamp module
Measurement
Measurement principle	1- Channel Absorption of light
Measurement wavelength(s)	AF56-F:430 nm
Detector(s)	1 silicon photodiode (hermetically sealed)
Measuring Range	any measuring range between AF56-F:0 - 0.5 to 2 CU
Optical path length	1 - 200mm
Calibration	Abs.: CU (concentration units) application specific calibration
Light source	special incandescent tungsten lamp 5.0 V DC, 970 mA typical life span: 3 to 5 years (25,000 to 40,000 hours)
Resolution	< ± 0.5 % of respective measuring range
Repeatability	< ± 1.0 % of respective measuring range
Linearity	< ± 2 % of respective measuring range (specific to application)
Protection	all optical parts have an IP rating of IP65 or higher
Sensor Body
Material	Stainless steel 1.4435 (SS 316L), 1.4539 (904 L), 1.4571 (SS 316Ti), 1.4462 (318 LN), Titanium 3.7035 (Grade 2), Hastelloy 2.4602 (C22), Plastic TFM™ 4215, ... others on request
Line size	1/8 in. to 6 in. (DN 6 to DN 150), ... others on request
Process connection	Flanges (ASME, DIN, EN, JIS), Clamps (TC, ISO, DIN), Female Threads (NPT, DIN), Sanitary Threads (DIN 11851), Tube Ends (DIN, ISO, OD),DIN 11864-1/-2/-3 (DIN, ISO, OD), Varivent (DIN, IPS, OD), ... others on request
Process pressure	0 - 100 bar (0 - 1450 psi) - higher on request depending on process connection, materials and design
Windows	1-Pyrex®, 2-Sapphire, 3-Sapphire Biotech
Window gaskets	Silicone (FDA), Viton® (FDA), EPDM / Kalrez® 6230 (FDA / USP Class VI), Kalrez® 4079, ... others on request
Temperature Ratings
Process temperature	permanent:0 – 100 °C (32 – 212 °F) peak (15 min/day):0 – 120 °C (32 – 248 °F)
Process Temperature OPTION SF	permanent:0 – 60 °C (32 – 140 °F) peak (15 min/day):0 – 80 °C (32 – 176 °F)
Ambient temperature	operation:0 - 40 °C (32 - 104 °F) transport:-20 - 70 °C ( -4 - 158 °F)
Pressure and temperature ratings specified herein may be subject to limitations - see instruction manual. The appropriate choice of material for all wetted parts is the sole responsibility of the user. Data given are subject to changes without prior notice.