Electromagnetic Flowmeter M-910
16
Operation manual
4.3.2 Frequency output
The frequency output is a galvanically isolated transistor NPN switch. Voltage drop on the switch is 1 V in the
made status. Maximum switched voltage is 50 V. Maximum switched current should not exceed 100 mA. Positive
output is on terminal 4, negative output is on terminals 5 and 7 (internally connected). Frequency range of the
output is from 10 Hz to 12 kHz.
Example of the frequency output connection:
For more information about frequency output see chapter “
Input and outputs configuration
”.
Note 1: Frequency, impulse and status outputs are galvanically connected to each other and galvanically isolated
from other electronic circuits.
Note 2: Active frequency output uses the power supply of the current output. Total current take-off from this
power supply (terminal nr. 1) must be less than 40 mA. Active frequency output is galvanically connected
to current output.
4.3.3 Impulse output
The impulse output is formed by a galvanically isolated transistor NPN switch. Voltage drop on the switch is 1 V
in the made mode. Maximum switched voltage is 50 V. Maximum switched current should not exceed 100 mA.
Positive output is on terminal 6, negative output is on terminal 5 and 7 (internally connected). Width of the impulse
can be set. Maximum frequency of impulse output is limited by impulse width. Maximum frequency is 50 Hz for
the shortest impulse 10 ms
Example of impulse output connection:
For more information about impulse output see chapter “
Input and outputs configuration
”.
Note 1: Frequency, impulse and status outputs are galvanically connected to each other and galvanically isolated
from other electronic circuits.
Passive
frequency output connection
Active
frequency output connection
Passive
impulse output connection
Active
impulse output connection