OPERATION
Part No.: 4417340 Revision 1 Service Manual 247
954 SmartServo FlexLine
8 OPERATION
8.1 Repeatability test
With the repeatability test the displacer is raised for approximately 60
mm (2.4”) and then returns to the product surface. During the test, the
level dimension and level type on the display are replaced by
exclamation marks (!!! !!!) and the status field (I1) changes to [TG].
When the repeatability test is completed, the selected level dimension
and level type appears and [TG] is replaced by I1.
Entity name Entity name
(SmartView)
Description
[Test gauge]
[Test gauge]
(Product level)
Performs a repeatability test on the level measurement.
The level reading before and after the test may not differ more than 1
mm (1/16").
8.2 Lock test
The lock test command brings the displacer to the position,
programmed in entity [lock test motor limit switch level].
During the lock test, the level dimension and level type on the display
are replaced by exclamation marks (!!! !!!) and the status field (I1)
changes to LT. When the lock test limit switch level is reached, the
status field changes into BL (block).
Entity name Entity name
(SmartView)
Description
[Lock Test]
[Lock Test]
(Product level)
The Lock test raises the displacer to the programmed
[lock test motor limit switch level] position. Then the
gauge goes into block mode (BL). If
[Lock test motor limit switch level] is set higher than
[Motor limit switch high] the displacer stops at the
programmed [Motor limit switch high] position and stays
in lock test mode (LT).
The displacer will remain in one of these two positions until an unlock
command is given.
8.3 Freeze and block commands
Both the freeze and block commands stop the displacer at the current
position.
With the freeze command, the displacer remains in its position even
when the level reaches the displacer position. Hence, the level cannot
be followed and the high, low, high high and low low level alarms cannot
be generated.
The block command stops the displacer and, depending on how the
block mode (item BM) is set, the displacer will only move up with an
increasing level, or the block is cancelled when the level reaches the
displacer position.
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