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Scitec Instruments
UV Probe Selection Process

UV Probe Selection Process

Product catalog summary

UV Probe Selection Process

This document provides a structured guide for selecting a UV probe suitable for specific applications. The selection process is divided into four main steps:

Step 1: Selection of the Probe Housing

UV_Air: Stainless steel housing with Teflon diffuser for cosine correction, suitable for air applications.
UV_Cosine: Wide angle housing with cosine correction, water protection class IP68 inside and IP65 outside, includes mounting set.
UV_DVGW: Designed for water purification systems, compliant with DVGW W294-3 (2006).
UV_Water: Stainless steel housing with 10 bar water resistance, suitable for water applications.

Step 2: Spectral Characteristics

ABC: Measures broad band UV radiation (UVA, UVB, UVC) with a SiC detector chip.
C: Sensitive only to UVC radiation, also uses a SiC detector chip.
UV-Index: Measures UV-Index according to ISO 17166 CIE S 007/E (2000) – DIN 5050, with a linear sensor signal.

Step 3: Output Signal

4-20mA Output: Suitable for data bus inclusion, adjustable offset and amplification.
0-5V Output: Voltage output with adjustable offset and amplification.
Without pre-amp: Non-amplified, requires external amplifiers or laboratory equipment.

Step 4: Connector

5-pin plug: Stainless steel plug with M12x1 thread, various cables available.
Fixed cable: Cable fixed with the probe, default length two meters, IP65 rated.

Nomenclature

The product number is derived from a combination of the selected probe housing, spectral characteristics, output signal, and connector type. An example is provided for clarity: a probe with wide angle characteristics, for UV-Index measurement, with 4-20mA output and fixed cable is denoted as UV_Cosine_UV-Index_AMP4-20mA_cable.

Catalog excerpts

Within the first step you decide if your probe is working in air or needs to be waterproof. Furthermore you can select between different viewing angles of the probe > UV_Air o Handy and robust stainless steel housing o With Teflon diffuser for cosine correction o With male thread for comfortable mounting UV_Cosine o Special housing with wide angle characteristics and cosine correction o With male thread for comfortable mounting o Water protection class inside IP68, outside IP65 o Delivery with mounting set (locknuts and sealing ring) UV_DVGW o For the use in water purification systems o Compliant to the technical rule DVGW W294-3 (2006) o Spectral characteristic and angle behaviour given by DVGW rules UV_Water o Stainless steel housing with 10bar pressure water resistance o For the use in water o With ܓ thread for comfortable mounting > Page 1 Scitec Instruments Ltd Tel: +44(0)1209 314 608 www.scitec.uk.com size="-1">

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The spectral characteristics decide which UV wavelength range contribute to the sensors signal. ABC o For measurement of broad band UV radiation (UVA&UVB&UVC) o Extreme radiation hardness due to a SiC detector chip C o Only sensible to UVC radiation o Extreme radiation hardness due to a SiC detector chip UV-Index o For measurement of the UV-Index according to ISO 17166 CIE S 007/E (2000) Җ DIN 5050 o The sensor signal is linear to the UV-Index > According to the further processing of the sensors signal different output signals are available o 4-20mA current output (24V supply voltage) 4-20mA...

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