The enclosed models are best suited for harsh environments. The sealing lips on the extrusion keep out coolants and contamination. For applications where the Linear Encoders are used in very harsh environments, there are methods of extra protection (IP 64) beyond the enclosed unit´s standard set of sealing lips.

System resolution	Measuring length	Size	Type/Series
5 µm to 0,1 µm	to 520 mm	extremely small cross-section	MSA 170
10 µm to 0,1 µm	to 2440 mm	small cross-section	MSA 6xx
5 µ to 0,04 µm	to 2240 mm	small cross-section	MSA 7xx, MSA 8xx
10 µm to 0,1 µm	to 3040 mm	large cross-section, rigid mounting	MSA 3xx