Tokyo Keiki UFL-30, Installation & Operation Manual

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II-14
[Totalized pulse width]
When FW INTG (forward flow totalized pulse output) or BW INTG (reverse flow totalized pulse
output) is set as relay operation output, the width of the totalized pulse (i.e. time when the relay
output is being created with the inverted output OFF) is set.
Totalized pulse width can be selected from the following.
20ms, 100ms, 500ms, 1000ms
Note
Carefully select totalized pulse width taking into consideration the totalized count up rate.
Set the totalizing unit so that the relationship between pulse width
‘a’ and pulse
interval ‘b’ is a b.
Pulse Width Max. Output Rate
20ms 25 pulses/sec.
100ms 5 pulses/sec.
500ms 1 pulse/sec.
1000ms 1 pulse/2 sec.
Note
Totalized pulse is not an active output signal but a passive output signal as relay contact output..
[Setting of no receiving echo warning (ROFF ALARM)]
The relay output for no received signal warning for multi-path measurement can be set so that a
warning is generated when all paths do not receive signals (AND) or if one of the paths does not
receive a signal (OR).
[Logic inversion]
Relay logic can be inverted.
Independent ON/OFF settings can be made for each relay channel.
(
‘a’ relay operates at OFF, and ‘b’ relay operates at ON.)
a b
a b