Technical Data 10
• 4 navigation and 2 function keys
• 2 multicolor LEDs for power and status
indication
• sealable security switch
Table 7: General technical data
10.2 Input channels
ExMFE5 input
board
• 3 NAMUR inputs [Ex ib Gb] IIC for LF pulses
(max. 2 Hz, min. pulse length 200 ms) or HF
pulses (max. 5 kHz) or messages. One of
these inputs can alternatively be used for
connecting an encoder index.
• analog input for a transmitter with 4 … 20 mA
interface [Ex ib Gb] IIC, alternatively suitable
for connecting transmitters with HART interface
(1 transmitter in burst mode
22
or up to 4 trans-
mitters in multidrop mode)
• input for Pt100 temperature transmitter in
4-wire technology, [Ex ib Gb] IIC
• all inputs galvanically isolated amongst each
other, and inputs and system
22
Burst mode is not supported by all transmitters.
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