AS16-F Color probe with a filter adapter for NIST-traceablability

AS16-F mounted to a varivent housing commonly used in breweries

AS16-F probe mounted in a varivent housing looking through the pipeline

AS16 probe with a long length and large optical path length

AS16-F Color Probe

Single Channel VIS Absorption Probe

The AS16-F is a high precision absorption probe for direct installation into pipelines and vessels measuring visible (VIS) light absorption in liquid samples. Wavelength and optical path length can be individually configured to meet the process control requirements with the highest accuracy.

Used For

Color scale:
- CU (concentration units)
Color control
- for beer / water phase separation

Features

Benefits

Inline color measurement in demanding process conditions

No sampling or by-pass installation needed

Fast and accurate color measurements

Immediate detection of color changes to verify product quality

Hygienic probe design (3-A)

For pipe and vessel installation

Different wavelength modules available

Application optimized configuration

Optional validation accessories

Easy on-site / on-demand verification

The AS16-F is a precision absorption probe, which is designed for direct installation into pipelines and vessels and provides accurate concentration measurements with remarkable repeatability, linearity and resolution. A wide selection of different optical path lengths and insertion depths are available combined with optional calibration filters. The AS16-F uses a specific wavelength in the visible (VIS) spectrum to measure color in liquids with little or no turbidity.

Additionally, NIST-traceable calibration accessories provide absolute measurement confidence.

AS16-F
Schematic	OPL Windows Lamp module Optics modules (incl. filter) Detector module No window gaskets used
Measurement
Measurement principle	1- Channel Absorption of light
Measurement wavelength(s)	AS16-F:430, 550 or 620 nm
Detector(s)	1 silicon photodiode (hermetically sealed)
Measuring Range	AS16-F: any measuring range between 0 - 0.05 to 2 CU (depending on wavelength)
Optical path length	1, 5, 10, 20 or 40 mm
Calibration	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	< ± 0.05 % of respective measuring range
Repeatability	< ± 0.5 % of respective measuring range
Linearity	< ± 1 % of respective measuring range (specific to application)
Protection	all optical parts have an IP rating of IP65 or higher
Process Adaption
Material	wetted parts: stainless steel 1.4435 (SS 316L) dF < 1%, BN2 surface: N5: Ra < 0.4 μm (16 µinch) - electropolished housing: stainless steel 1.4571 (SS 316Ti)
Port connection	thread G1-1/4 in., ISO 228/1 for port AS25 (similar Ingold-port) diameter: 25 mm ( D= 25 H7) O-ring groove for 30 mm and for 60 mm port length
Port gasket	O-ring 18.64 x 3.53 mm EPDM (FDA / USP Class VI)
Insertion depth	35 mm (1.38 in.) + OPL at a port length of 60 mm (2.36 in.) 135 mm (5.31 in.) + OPL at a port length of 60 mm (2.36 in.)
Process pressure	0 - 20 bar (0 - 290 psi)
Windows	Sapphire (seal-less)
Installation accessories	weld-in ports Varivent adapter (50.00) clamp adapter (1.5 and 2.0 in.)
Temperature Ratings
Process temperature	permanent:0 - 100 °C (32 - 212 °F) peak 60 min/day:0 - 150 °C (32 - 302 °F) peak 90 min/day:0 – 130 °C (32 – 266 °F)
Ambient temperature	operation:0 - 40 °C (32 - 104 °F) transport:-20 - 70 °C ( -4 - 158 °F)
Calibration
Calibration adapter	none
Calibration adapter VB	Filter adapter FH03 for calibration filter used for sensor verification
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.