Description
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
Typical Applications
Brewhouse Turbidity
Brewing Separator Control
Identification / Detection
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.
| AF56-F | ||
|---|---|---|
| Schematic | 
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| 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, 1.4571 (SS 316Ti), 1.4462, Titanium 3.7035 (Grade 2), Hastelloy 2.4602 (C22), Plastic TFM4215, PVC, … others on request | |
| Line size | 1/8 in. to 6 in. (DN 6 to DN 150), … others on request | |
| Process connection | Flanges (ASME, DIN, JIS), Clamps (TC, ISO, DIN), Female Threads (NPT, DIN), Sanitary Threads (DIN 11851), Tube Ends (DIN, ISO, OD), Varivent, … others on request | |
| Process pressure | 10 mbar to 100 bar (0.15 psi to 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 (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. | ||
