Proservo NMS81
Endress+Hauser 37
Environment
Ambient temperature range
Device –40 to +60 °C (–40 to +140 °F)
Display module –20 to +70 °C (–4 to +158 °F)
The readability of the display may be impaired at temperatures outside this
temperature range.
Classification of
environmental conditions
according to DIN EN
60721-3-4
4K5, 4K6, 4B1, 4M7, 4Z2, 4Z3, 4Z8
Storage temperature
–50 to +80 °C (–58 to +176 °F)
Humidity
≤ 95 %
Degree of protection
• IP68/66 according to DIN EN 60529
• Type 6P/4x according to NEMA 250
Electromagnetic
compatibility (EMC)
• Transient emissions according to DIN EN 61326, class B
• Interference resistance according to DIN EN 61326, Appendix A (Industry use) and NAMUR
recommendation NE21
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