Status Output Out3; Current Output; Feasible Output Configurations - COMAC CAL FLOW 32 Installation And Technical Conditions

The status output OUT3 is specified for sending the FAULTY STATE information, whereas
the faulty state is one of the two states:
This failure output is active and it is implemented identically as OUT1/OUT2, on connector
pin 5.
Note: - The failure status is indicated by open outputs!
The current output is also active. The positive output of the current loop is connected to 5.
The loop resistance must not be higher than 600Ω. As standard, it is set in such a way that
with the maximum flow Q
loop current is 4mA. The current value is directly proportional to that of the flow in the
sample.
The flow limits of the current output are arbitrarily adjustable by the manufacturer during
production (float data type) by means of the service communication interface.
In case of a failure or due to the loss of power, the current output falls under 4mA (usually to
3mA) and thereby a higher-level system can detect the error state.
Active current loop example:
OUT1 (impulse)
impulses in flow direction
impulses in flow direction
impulses in both flow directions
impulses in flow direction
impulses in flow direction
FLOW 32 manual

Status output OUT3

- Defective flow sensor
- Measured signal is beyond limits (signal cannot be measured)

Current output

the loop current is 20mA and with the zero or negative flow, the
max

Feasible output configurations

OUT2 (status/impulse)
impulses in flow direction
impulses in reverse flow direction
flow direction
impulses in flow direction, phase-
flow monitoring (in flow direction
Page 10 (total 18)
shifted
only)
Analog OUT
4-20mA in flow direction
4-20mA in flow direction
4-20mA in both flow
directions
4-20mA in flow direction
4-20mA in flow direction
COMAC CAL s.r.o.