SMC Networks ISA3 Series Operation Manual page 88

○Zero-clear function
The displayed value can be adjusted to zero if the pressure being measured is within 7%F.S of the zero
point set at the time of
default settings
(The zero clear range varies by ±1%F.S. due to variation between individual products.)
When the SUP port side pressure or OUT port side pressure is displayed on the sub display, if the SET and
DOWN buttons are pressed for 1 second or longer simultaneously under atmospheric pressure, the main
display shows [- - -] and the display value is reset to zero.
○Key-lock function
The key-lock function is used to prevent errors occurring due to unintentional changes of the set values. If
the SET button is pressed while the keys are locked, [LoC] is displayed on the sub display (left) for
approximately 1 second.
(Each setting and peak/bottom values are displayed with UP and DOWN buttons.)
<Operation - Without security code input ->
(1) Press the SET button for 5 seconds or longer in measurement mode. When [oPE] is displayed on the
main display, release the button.
The current setting [LoC] or [UnLoC] will be displayed on the sub display.
(To release key-lock repeat the above operation.)
(2) Select the key-locking/un-locking with UP or DOWN button, and press the SET button to set.
.
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4 How to use
No.PS※※-OMW0009-A