HF110PEN_v0501_04
Page 31
Reed-switch:
The F110-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 filter (read par. 3.2.3.)
NAMUR-signal:
The F110-P is suitable for flowmeters with an Namur signal. The standard F110-P is not able to
power the Namur sensor, as an external power supply for the sensor is required. However, a 8.2V
sensor supply voltage (terminal 11) can be provided with power supply type PD, PF, PM.
Terminal 12-13: Type IB – external reset (option):
With this function the total can be reset to zero with an external switch. The Total resets only when
the switch opens. When closed Total still counts but the ”Clear Total” function is disabled (see
chapter 2).
The input must be switched with a potential free contact to the GND-terminal number 12.
INTERNAL EXTERNAL
Namur signal input
10
Common ground unit
SIGNAL
9
GND
shielding
Namur
820 Ohm
11
(Type PD, PF, PM: +8.1V)
+8.1V DC
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