Standard Level Calibration; Level Calibration With A Tank Top Reference Stop - Honeywell FlexLine SmartServo 954 Service Manual

COMMISSIONING
7.6 Level calibration

Standard level calibration

Entity name
[Reference level]
[Accept reference]

Level calibration with a tank top reference stop

Entity name
[Calibrate]
[Tank top level]
Part No.: 4417340 Revision 1
Make sure the displacer is at the liquid surface. Perform a repeatability
test to ensure the displacer is on the product surface Determine the
product level by manual dipping. It is essential that the level is as stable
as possible.
Note: Make two or three manual dips and compare each reading to
ensure the manual dip value is correct.
Entity name Description
(SmartView)
[Reference level] Enter in this item the manual level.
(Product level)
[Accept reference] By giving this command, the level value entered in entity
(Product level) [Reference level]
cause an automatic reset.
A tank top reference stop is a mechanical device that can hold the
displacer at a reproducible position when the displacer is pulled up. This
device is placed above the motor limit switch high position. A Honeywell
Enraf tank adapter can be provided with such a facility.
1. Follow the procedure as described in section
2. Determine the tank top position; proceed as follows:
Entity name Description
(SmartView)
[Calibrate]
(Product With this command the displacer is pulled up until it is
level) halted against the tank top reference. Wait until the
displacer is settled.
[Tank top level]
Read the displacer level value and program that value in
(Product level) entity
For verification of the level calibration, refer to section
Do not perform this procedure with a "S0815316 stabigauge 90 mm" or the "S0815360
cptfe 25 mm" displacer, because this will cause damage to the drum.
Service Manual
954 SmartServo FlexLine
is accepted as product level. This will
[Tank top level].
7.6
8.8
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