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3.10.1. DO output settings
Description
●
Selects the total pulse and status (warning and flow rate switch, total switch, etc.) output.
●
DO output types (common to DO1 and DO2):
Settable range
Not used
All alarm
Device error
Process error
Range-over/Pulse range-over :
Negative flow direction
Forward total flow pulse
<Note> Only DO1 is set for forward total flow pulse.
Contact operation
Operation ON
Operation OFF
●
When the contact operation setting is "Operation OFF", DO is output when the power is turned ON.
●
Before setting, confirm in advance that you want to change the DO output.
<Note> DO output specification
DO1/DO2
For specific key operations, refer to the example in
3.10. Status settings
:
: Does not use the contact output.
:
: Contact output is activated upon instances of device error or process error
:
: Contact output is activated when a circuit error (memory, etc.) or a temperature circuit
error occurs.
:
: Contact output is activated when no waves are received or waves are unstable.
: Contact output is activated when the instantaneous flow rate exceeds the upper limit
of 120% or lower limit of -20% of the range.
Contact output is activated when the flow rate total pulse output exceeds the maximum
frequency limit.
:
: Contact output is activated when the flow is in the reverse direction.
:
: Outputs the forward total flow pulse.
:
: Normally OFF
:
: Normally ON
Open collector, contact capacity 27.5 V DC, 100 mA
:
When total pulse output is selected
(Note: Refer to
3.10.2
100 pulses/sec or less (at full scale flow rate)
Pulse width: 5 ms, 10 ms, 50 ms, 100 ms, 200 ms
0.
Total flow pulse setting (total rate, pulse width))
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