Zone 0
Explosive gas atmosphere present continuously or for long periods
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 20
Explosive dust atmosphere present continuously or for long periods
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: Remote I/O system
Brand: Pepperl+Fuchs
Series: FB Remote I/O
Functions: digital inputs, frequency/counter inputs, digital outputs, relay outputs, HART universal I/O, HART transmitter power supplies, HART output isolators, TC/RTD converters
Communication: MODBUS RTU, MODBUS TCP, PROFIBUS DP/DP-V1 (EasyCom, Unicom), PROFINET gateway
Backplanes: base, extension, redundant, universal
Channels per module: 1, 2, 4, 8
# Certifications
Installation: in suitable enclosures in Zone 1
Field circuits: Ex ia
Connected instruments: Zone 0, 20
Conformity (FB9215B2): EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU, NE 21
# Electrical
I/O module supply: 12 V DC via backplane (only with FB92** power supplies)
Digital inputs (FB1209B3): 8 channels, NAMUR sensors or dry contacts
Frequency input (FB1203B3): 0…15 kHz, counter, direction of rotation
Transmitter supply (FB7204B3): min. 15 V at 20 mA; 21.5 V at 4 mA
Power supply FB9215B2: 90…253 V AC, 50…60 Hz; outputs 5.4 V DC and 12 V DC
FB9215B2 capacity: 24 I/O modules and 1 bus coupler
# Mechanical
Occupied slots (I/O modules): 1
Ambient temperature (FB9215B2): -20…60 °C
Storage temperature (FB9215B2): -25…85 °C
Relative humidity (FB9215B2): 95 % non-condensing
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