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Chapter 3 Starting and Stopping this Device
(ii) Procedure for software version 6.0 or later
(1) Accurately apply the differential pressure that will serve as the reference for 0 % of the range to
the transmitter. In addition, check that there are no leaks.
(2) Touch “DN” on the glass window with the magnetic stick.
(3) When “WAIT” followed by “READY” is displayed, remove the stick from the window. When
“UNLOCK” is displayed, the external zero point adjustment function is enabled. With
“UNLOCK” displayed, if there is no operation with the magnetic stick for 45 seconds or more,
the external zero/span adjustment function will be automatically disabled.
(4) With “UNLOCK” displayed, touch “UP” or “DN” on the glass window with the magnetic stick
for 2 seconds or more.“ZERO.ADJ” will be displayed, and the zero point can be adjusted.
(5) If the output of the transmitter is less than 4 mA, keep touching “UP” with the magnetic stick
until the output reaches 4 mA. If the output of the transmitter is more than 4 mA, touch “DN”
with the magnetic stick. When the output is reduced to 4 mA, remove the stick from the
window to complete zero point adjustment.
(6) In adjustment for liquid level measurement, it is not necessary to actually drain the liquid to
the 0 % level. The output value (%) of the transmitter can be adjusted to the liquid level (%)
measured by a level gauge or the like.
Touch “DN” with the magnetic stick.
Wait for 3 seconds.
Remove the magnetic stick.
Touch “DN” or “UP” again with the magnetic
stick for 2 seconds or more.
When zero point adjustment is complete,
remove the magnetic stick.
With “UNLOCK” displayed, if there is no operation
with the magnetic stick for 45 seconds or more,
“LOCKED” is displayed for 3 seconds, after which
the external adjustment function is disabled.
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