User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
–
Totalizer configuration
– submenu which contains totalizer settings,
•
Reset now
– manual reset of the totalizer,
•
Reset mode
– turns on and off reset from logical channel,
•
Reset source
– allows to choose a logical channel from the list, which will reset
the totalizer, when value in this channel will be greater than 0,
•
Strobe mode
– turns on and off total flow calculating from logical channel,
•
Strobe source
– allows to choose logical channel from list, which will hold total
flow calculating in totalizer (this do not reset the totalizer and do not stops flow
measurement); total flow calculating is hold when value in this logical channel is
equal or lower than zero,
•
Counting direction
– turns on and off change of the counting direction,
•
Direction source
– allow to choose a logical channel from the list, which will
change the counting direction; counting direction will change when value in this
channel will be greater than 0,
An example of total flow configuring and displaying is shown in chapter
Application of Logical channel in the Hardware input mode and Data from other
channel for FT4 module
7.9.5.5.
Pulse flowmeter modules
FT
modules are equipped in two or four pulse flowmeters and same number of current
inputs, see
Appendices 8.5. FI2. FI4, FT2, FT4 – FLOWMETER MODULES
. Pulse
flowmeters are used to liquids, gases and bulk materials flow measurement, based on pulses
from sensor and calculating total flow in selected channel. Each pulse channel is equipped in
counting inputs:
Inp[n]1
,
Inp[n]2
and common ground
COM[n]
. All pulse channels are
galvanically separated from the device and from themselves.
The user can, thanks to
Scaling
parameter in Logical channel, see chapter
, interpret amount of pulses received by the device at its
discretion, which allows to cooperate with any kind of pulse sensors.
Current inputs are used to current measurement in typical ranges (0÷20 mA; 4÷20mA) and to
facilitate their connection, they are grouped and they have common ground, but it is isolated
from the supply voltage and other modules.
Pulse flowmeter parameters are:
–
Name
– each built-in input already has a name given by the device and user cannot
change it, for description of
Name
–
Unit
– parameter which displays the time base of the measurement,
–
Base unit
– defines unit which is used by the totalizer (for example when flow
measurement unit is m
3
/s, the base unit is m
3
) ,
–
Mode
– defines the time base which is used during the measurement (pulses per
second, pulser per minute, pulser per hour),
–
Low limit
– value which determines amount of pulses, bellow which in logical
channel will be displayed Lo state, but the actual flow value still will be used in total
flow calculation,
–
High limit
– value which determines amount of pulses , above which in logical
channel will be displayed Hi state, but the actual flow value still will be used in total
flow calculation,
–
Counting mode
– defines how the device should interpret signals on pulse inputs; it
has following options:
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