Applicable for Upstream + Downstream
Optical Sensor For Backscattering Measurement
EXspect 271 is a highly accurate, compact NIR turbidity sensor for use in a range of medium- and high-turbidity process applications in the food industry, including dairies.
Last updated: January 12, 2023
NIR backscattering sensor in compact design
The EXspect 271 is a highly accurate, compact NIR turbidity sensor for use in a variety of medium- and high-turbidity process applications in the food industry, such as in dairies. It’s a reliable back scattering sensor with an integrated transmitter thanks to its compact and durable structure in the stainless steel housing and non-wearing sapphire lens.
The turbidity value can be output via the standard interface 4…20 mA and displayed directly in the display in percent or a freely defined customer-specific unit. There are two alarm limits that can be set.
|Technical Specifications*||*Subject to change without notice|
|Measuring range max.||0-100 %turb|
|Accuracy||± 1,5 % from measurement value|
|Reproducibility||≤ 1 % from final value|
|Wetted material||Stainless steel 1.4435 (316L)|
|Surface||Ra <0.37 µm e-polished|
|Measuring window (lens)||Sapphire|
|Supply voltage||24 V DC|
|Contact||NO or NC configurable 150 mA|
|Process connection||Thread G1/2"|
|Process temperature||-10...90 °C, 141 °C max. 2 hours (SIP cycle)|
|Process pressure||0...20 bar (290 psi)|
|Electrical connection||M12 connector 5-pin or 8-pin (digital parameterisable)|
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