Verify Level Calibration Against A Tank Top Reference Stop - Honeywell FlexLine SmartServo 954 Service Manual

OPERATION
Entity name
< SAT status >
< SAT level last fail >
< SAT last level executed >
< SAT minimum level
executed >
< SAT maximum level
executed >
< SAT highest number of
retries >
< SAT number of executed
tests >
< SAT time elapsed since
last SAT >
< SAT RTC last fail >
8.8 Verify level calibration

Verify level calibration against a tank top reference stop

Entity name
[Calibrate]
[Tank top level]
[Unlock]
Part No.: 4417340 Revision 1
Simple audit trail functionality is implemented by recording several SAT
related parameters.
Description
Shows the status of the SAT (idle, 1st attempt, 2nd attempt, 3rd
attempt, denied, fail, success).
Level at which a SAT last failed.
Level at which the most recent SAT was performed.
Lowest level at which a SAT has been performed since NOVRAM
initialization.
Highest level at which a SAT has been performed since NOVRAM
initialization
Highest number of retries observed during a SAT since NOVRAM
initialization.
Total number of SATs performed since NOVRAM initialization.
Number of minutes elapsed since the most recent SAT
successfully completed.
Date and time of the last SAT fail.
Note: for useful information the Real Time Clock (RTC) needs to be
set correctly (refer to section
When a tank adapter with a tank top reference stop is installed, the level
calibration of the 954 SmartServo FlexLine can be checked. Proceed as
follows:
Entity name Description
(SmartView)
[Calibrate] With this command the displacer is pulled up until it is
(Product level) halted against the tank top reference. Wait until the
displacer is settled.
[Tank top level] Request for the tank top value, which was established
(Product level) during level calibration. The level reading from the
gauge should not differ more than ±3 mm (±1/8") with
the value in entity [Tank top level].
[Unlock] Give an unlock command to cancel the calibrate
(Product level) command.
If the tank top value and the gauge reading differs more than the
specified value, the calibration procedure as described in section
should be repeated.
Service Manual
954 SmartServo FlexLine
7.3.4
7.6.2
253