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FW-E115-P-M_v0203_03_EN.docx
Reed-switch
The E115-P is suitable for use with flowmeters which have a reed-switch. To avoid pulse bounce
from the reed-switch, it is advised to select REED LP – low-pass noise filter, which limits the
maximum input frequency (see paragraph 3.3.7 for more information). Make sure the contact
resistance of the reed switch is less than 1V@2uA=500k Ohm.
Fig. 21: Terminal connections – Reed-switch signal input
NAMUR-signal
The E115-P is suitable for flowmeters with a NAMUR signal. The standard E115-P-PX is not able to
power the NAMUR sensor. If required the NAMUR sensor can be supplied via the 8.2V sensor
supply (terminal P3), only available with power supply type PD. See paragraph 3.3.7 for more
information.
Fig. 22: Terminal connections – NAMUR signal input
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