HF124PEN_v0501_04
Page 18
7 - FLOWMETER
SIGNAL A
71
The F124-P is able to handle several types of input signal.
The type of flowmeter pickup / signal for input A “main flow” is selected
with SETUP 71.
Note:
The selections "active pulse" offer a detection level of 50% of the
supply voltage.
Read also par. 4.4.3. Flowmeter input terminal 09-11.
SIGNAL B
72
The F124-P is able to handle several types of input signal.
The type of flowmeter pickup / signal for input B “additive” is selected with
SETUP 72.
Note:
The selections "active pulse" offer a detection level of 50% of the
supply voltage.
Read also par. 4.4.3. Flowmeter input terminal 12-14.
TYPE OF SIGNAL
EXPLANATION
RESISTANCE
FREQ
.
/
M
V
REMARK
NPN
NPN input
100K
pull-up
6 kHz.
(open collector)
NPN - LP
NPN input
with low pass filter
100K
pull-up
2.2 kHz.
(open collector)
less sensitive
REED
Reed-switch input
1M
pull-up
1.2 kHz.
REED - LP
Reed-switch input
with low pass filter
1M
pull-up
120 Hz.
Less sensitive
PNP
PNP input
100K
pull-down
6 kHz.
PNP - LP
PNP input
with low pass filter
100K
pull-down
700 Hz.
Less sensitive
NAMUR
Namur input
820 Ohm
pull-down
4 kHz.
External power
required
COIL HI
High sensitive coil input
-
20mV
p.t.p.
Sensitive for
disturbance!
COIL LO
Low sensitive coil input
-
90mV
p.t.p.
Normal sensitivity
ACT_8.1
Active pulse input
8.1 VDC
3K9 10KHz.
External power
required
ACT_12
Active pulse input
12 VDC
4K 10KHz.
External power
required
ACT_24
Active pulse input
24 VDC
3K 10KHz.
External power
required