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MoniSpec-UVd - Model MSUVd -Dual Channel Absorption Sensor
The sensor model MoniSpec-UVd uses the principle of dual channel absorption to detect UV- Absorption in liquids. The measurement detector registers the UV- absorption caused by UV- absorbing substances and particles inside the product stream. The reference detector registers the absorption caused by particles within the product stream. Both of the signals are used to compensate the measurement results against effects caused by particle turbidity and coatings of the flow cell windows. Typical measurement wavelengths are 254 or 280nm. A typical wavelength for the reference channel is 545nm.
Two additional detectors are located next to the UV- lamp. These detectors register directly the lamp intensity at measurement and reference wavelength. Changes in lamp intensity caused by lamp aging or other factors are compensated by using these two additional detector signals. The micro controller of the Messenger transmitter uses the four detector signals to calculate highly stable measurement results. Calibration can be done in multiple ranges and measurement units.
The sensor is designed for continuous operation with long life time and low maintenance. Optional cleaning jets will allow a cleaning of the measurement windows in user determined intervals. The availability of multiple optical path lengths allows a wide span of ranges.
- Low maintenance
- Extended calibration interval: Typical 12 month
- Sight glass material: Sapphire, alternative Quartz
- Typical measurement wavelength 254nm or 280nm
- Typical reference wavelength 545nm
- Sight glass cleaning: Via cleaning jets
- Cleaning in place (CIP)
- Process connection: DIN, ANSI, SMS, NPT, APV, TH, …
- Optional air purge connection: 4mm
- UV254
- UV280
- Spectral absorption coefficient
- TOC
Operational areas:
- Chemical industry
- Petrochemical industry
- Water & Wastewater
- Bio technology
- Line size: DN 25 – DN 125 / ½“ - 4“
- Process pressure: PN16 / ANSI class 150
- Process temperature: maximum 90° (140°C short time)
- Sensor material: 1.4404 / 316L
- Sight glass material: Sapphire
- Gasket material: application specific
- Protection class: IP65 / NEMA 4X
- Measurement range: typical 0–2 AU
- Reproducibility: ± 1 %
- Detector: Silica diodes
- Measurement wavelength: 254nm or 280nm (other on request)
- Reference wavelength: 545nm (other on request)
- Cleaning: CIP (cleaning in place), Cleaning jets
- Optional hazardous area: on request