10*7 remote zero adjustment, Start signal requirements, Toshiba – Toshiba LF494 User Manual
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TOSHIBA
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10*7 Remote Zero Adjustment
On-slream zero adjustmciu in a
z e r o
flow rale condition can be started with an exiernal signal.
To do this, set D[ as a zero adjustment start signal. See R.2.9, “Digital I/O”
Start signal requirements:
Zero adjust men I
stari signal
{[ level
L level
! Zero
j
1C seconds ^ adjustment
start
20
seconds
The start signal must be set to H level firsi, then it must go to L level after Ihe passage of
more than
10
.seconds but not more than
20
seconds, as shown above. (If the signal does not
go to L level within liiis specified period, it will be ignored.) As soon as the signal goes to L
level, zero adjustment sequence starts.
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