NIR turbidity sensor EXplore 171

light scatteringcompact4-20mA

Short description
EXplore 171 is a NIR turbidity sensor based on back-scattering for monitoring production processes in the food industry (e.g. dairies) and other process applications with medium to high turbidity. It is housed in stainless steel with a wear-free sapphire lens and integrated amplifier. Measurements are provided as a percentage value and output via the standard 4...20 mA interface.

Key features

• Compact design with integrated amplifier
• Wear-free sapphire lens
• Hygienic design, CIP/SIP-capable
• LED light source for long-term stable signal
• No calibration or parameterisation required
• Variants available according to EHEDG / 3-A

Versions / Options (selection)

• Measuring range: 0...100 % turbidity (option A)
• Wetted material: stainless steel 1.4435 / 316L
• Sealing material (wetted): without elastomer
• Process connections: G1/2" (metal-sealing) or Varivent N DN40-125 (EHEDG/3-A) or Tri-Clamp 1.5" / 2" (EHEDG/3-A)
• Interface: analog 4...20 mA

Applications

• Reliable phase separation
• Monitoring precipitation/flocculation processes
• Concentration measurement independent of colour
• Monitoring product changeovers
• Yeast harvesting

Technical characteristics / specifications

• Max. measuring range: 0–100 %
• Resolution: 0.1 %
• Accuracy: ±1.5 % of full scale
• Repeatability: ≤1 % of full scale
• Wavelength: 850 nm
• Light source: LED
• Material: stainless steel 1.4435 (316L)
• Surface: Ra < 0,37 μm
• Lens: sapphire
• Supply voltage: 24 V DC
• Process connection: G1/2" (standard; other options: Varivent, Tri-Clamp)
• Process temperature: -10...100 °C, 135 °C max. 2 hours (SIP)
• Process pressure: max. 20 bar (290 psi)
• Electrical connection: M12 5-pin
• Interfaces: 4...20 mA
• Protection class: IP69 (including connection cable)