The pointers are designed for discrete electric signalling of the end positions of the stop valve from DN 150 to 1400 mm, can be used on other units and structures, where it is necessary to register the end positions of moving parts with the angle of rotation not more than 90. Pointers are designed for operation in conditions normalised for execution UHL, category 1.1 according to GOST 15150-69, but for operation at temperatures from minus 60 to plus 55 C and the upper value of relative humidity 98% at a temperature of 25 C and lower temperatures without condensation of moisture.
Place of placement: outdoors. The pointers have the explosion protection level "explosion-proof electrical equipment", type of explosion protection "flameproof enclosure", explosion protection marking 1 Ex d IIB T4 Gb and can be installed in hazardous areas.
The pointers are not a measuring instrument, but have accuracy characteristics with magnetically controlled hermetically sealed flip contacts (reed contacts) MKS27103 B
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