Zone 1
Explosive gas atmosphere likely to occur in normal operation
Zone 2
Explosive gas atmosphere unlikely to occur and, if it does, only for a short period
Zone 21
Explosive dust atmosphere likely to occur in normal operation
Zone 22
Explosive dust atmosphere unlikely to occur and, if it does, only for a short period
# General
Product type: Incremental and absolute encoder for hazardous areas
Brand: Pepperl+Fuchs
Housing diameter: 58 mm (RVI58X/RSI58X) · 70 mm (RVI70E) · 78 mm (78E)
Pulse count: up to 5000 (incremental)
Resolution: singleturn up to 16 bit · multiturn up to 14 bit (78E)
Shaft: Solid · recessed hollow (by series)
# Certifications
Certifications: ATEX, IECEx (RVI70E, 78E) · Ex-NEPSI · KOSHA (RVI70E) · UL (RVI58X)
Ex protection: Ex d, gas zone 1/2 and dust zone 21/22 (78E) · Group II and Group I (RVI70E, 78E)
# Electrical
Output: Push-pull 10…30 V · RS-422 · SSI · 0/4…20 mA · CANopen · DeviceNet · PROFIBUS · Ethernet
# Mechanical
Connection: 1…20 m cable · cable glands (78E)
Rotational speed: max. 6000 rpm (incremental) · max. 3000 rpm (78E)
Housing material: Aluminium or stainless steel 1.4404 (78E), seawater-resistant (RVI70E)
# Environmental
Degree of protection: IP66 / IP67
Operating temperature: -40…+70 °C (RVI70E, 78E)
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