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Page 16
FL_F116P_v1702_01_EN
3.1.8
EXPLANATION OF SETUP-MENU 7 - FLOWMETER
The F116-P is able to handle several types of input signal. The pickup / signal is selected with:
SETUP 71 (Input A), Read also chapter 4
SETUP 72 (Input B), Read also chapter 4.
The selections "active pulse" offer a detection level of 50% of the supply voltage.
7
FLOWMETER
71/72 SIGNAL
TYPE OF SIGNAL
EXPLANATION
RESISTANCE
FREQ. / mV
REMARK
NPN
NPN input
100 kΩ pull-up
max. 6 kHz.
(open collector)
NPN-LP
NPN with low pass filter
100 kΩ pull-up
max. 1.2 kHz.
(open collector)
less sensitive
REED
Reed-switch input
1 MΩ pull-up
max. 600 Hz.
REED-LP
Reed-with low pass filter
1 MΩ pull-up
max. 120 Hz.
Less sensitive
PNP
PNP input
100 kΩ pull-down
max. 6 kHz.
PNP-LP
PNP with low pass filter 100 kΩ pull-down
max. 1.2 kHz.
Less sensitive
NAMUR
NAMUR input
820 Ω pull-down
max. 4 kHz.
External power
required
COIL-HI
High sensitive coil input
-
min. 20 mV
pp
Sensitive for
interference!
COIL-HI (option ZF)
min. 10 mV
pp
COIL-HI (option ZG)
min. 5 mV
pp
COIL-LO
Low sensitive coil input
-
min. 80 mV
pp
Normal sensitivity
8-1 DC
Active pulse input
detection level 8.2V DC
3.9 kΩ
max. 10 kHz.
External power
required
12 DC
Active pulse input
detection level 12V DC
4 kΩ
max. 10 kHz.
External power
required
24 DC
Active pulse input
detection level 24V DC
3 kΩ
max. 10 kHz.
External power
required
3.1.9
EXPLANATION OF SETUP-MENU 8 - ANALOG OUTPUT
A linear 4-20mA signal (option AB: 0-20mA or option AU: 0-10V) output signal is generated that
represents the flow rate. The settings for the flow rate influence the analog output directly. The
relationship between the flow rate and the analog output is set with the following settings.
8
ANALOG OUTPUT
81
output
If the analog output is not used, select disable to minimize the power
consumption (e.g. save battery life-time).
Option AP: When a power supply is available but the output is disabled, a 3.5mA
signal will be generated.
82 rate-min
Enter here the flow rate at which the output should generate the minimum signal
(0)4mA or 0V - in most applications at zero flow. The number of decimals shown
depend upon setup 23. The engineering units/time (e.g. L/min) are dependent
upon setup 21 and 22.
83 rate-max
Enter here the flow rate at which the output should generate the maximum signal
(20mA or 10V) - in most applications at maximum flow. The number of decimals
shown depend upon setup 23. The engineering units/time (e.g. L/min) are
dependent upon setup 21 and 22.