Product description

The MHF15 is a compact optical level limit switch that is easy to commission. The sensor is based on SICK's energetic photoelectric proximity sensor technology, which has been tested and optimized over a number of decades. This sensor has a simple, robust and reliable construction. The use of high-quality materials, such as stainless steel 1.4404 and polysulfone, combined with the IP 69K-rated housing, provides reliability not only on the process side, but also in situations where there are adverse ambient conditions outside the tank. In addition, fast, hassle-free commissioning does not require medium calibration, reducing commissioning costs and maintenance. The optical technology makes the MHF15 particularly well-suited to use with water-based media.

Product features

• Robust level monitoring in liquid without additional requirements
• Small, compact design; no medium calibration required
• Process temperature up to 55 °C, process pressure up to 16 bar
• IP 67 and IP 69K enclosure rating
• Process connection G ½
• Highly medium resistant due to stainless steel housing 1.4404, polysulfone apex
• Output available as PNP or NPN transistor
• FDA-compliant, UL

Customer benefits

• Small, compact sensor ideal for difficult installation conditions with limited space
• Quick commissioning without medium calibration saves time and money
• No moving mechanical parts reduce maintenance and eliminate the need to recalibrate -- even after long periods of use.

Applications

• Level monitoring in aqueous and water-based liquids
• Dry running protection for pumps
• Level control in cleaning system flushing units

The MHF15 features a polysulphone prism as lens. Due to the different refractivity of water and air, the photoelectric reflex switch will either receive a total reflection or not and thus can trigger the switching signal.

MHF15

• Process connection: G 1/2
• Process temperature: –25 °C ... +55 °C
• Electrical connection: M12x1, 4-pin
• Enclosure rating: IP 67, IP 69K

Model name	Signal output	Switching mode	Part No.
MHF15-21NG1PSM	1x PNP	Normally closed	1052237
MHF15-21NG1HSM	1x PNP	Normally open	1052273
MHF15-21NG1TSM	1x NPN	Normally open	1052274
MHF15-21NG1NSM	1x NPN	Normally closed	1052272