Flow vision FC 01- CA, User Manual

Page: 46 / 76

CONFIGURATION
46
Flow Meter | FC 01- CA
5 .10 Frequency output
(menu option:
FREQUENCY OUTPUT
)
The totalizer function of the FC01-CA has been expanded by the output of proportional quantity
pulses
. The function can only be displayed by version
FC01-CA-U1T4
(transistor outputs).
The proportional quantity pulses have been determined as follow:
Example: 1 pulse / 10.0 [litre]
The frequency output will supply
1 pulse per 10 litres (totalized quantity).
When the quantity-proportional pulses are assigned, the frequency of the frequency output must
no exceed 10 Hz. The limits that can be displayed are determined by the flow velocity range and
the pipe diameter.
Potential setting range of the frequency output: 1 pulse per 0.1 … 999.9 [litre], [m
3
], [gallons]
Behaviour of the frequency output when the max . frequency is exceeded
The max. frequency being exceeded will not cause the measurement to stop but will rather cause
the error output to signal error 60 on the display. This error is included in priority group III.
If a combination of priority III errors occurs simultaneously, they are indicated or stored in the
error memory observing the following sequence:
Error No. 20, 30, 60, 40, 41.
Behaviour of the frequency output when the measurement is stopped
When the measurement is stopped (as caused by priority II error and calling the configuration
or parameter selection menus), the pulses for the quantity already counted will be available.
Thereafter the output of pulses will be stopped, with the frequency output becoming high-
resistive until the measurement is restarted.
Behaviour of the frequency output when the content of the totalizer is deleted
The content of the totalizer may be deleted by simultaneously pressing
▲
UP and
▼
DOWN
=
▲
+
▼
in the main menu.
As the frequency output refers to the content of the totalizer, although its operation is not depend-
ent on the content of the totalizer, a totalized quantity that is smaller than that set per pulse will
not be lost.
This means that only the content of the totalizer is deleted.
1 pulse / quantity (totalizer unit selected)