ITVC Series – Intelligent Total Valve Controller IOM-ITVC-LB-04
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7
Start-up
The following checks should be added to the procedures described in the chapter START-UP of the document
IOM-
ITVC-Basic
LB start-up
7.1
LB start-up
the digital inputs and outputs should be according to the wiring diagram
the reading of the pressure transmitter should be correct and according to working pressure of the pipeline. If
the configuration is 1oo2,1oo3 or 2oo3 check that the deviation is less than 5%. View the values by the
procedure described in the paragraph “Visualization of pressures” in the manual IOM-ITVC-Basic.
check that no Alarm, MRT alarm or Warning is present (Led of pushbutton should be off).
check the settings of Line Break parameters. In particular check that the parameters “Maximum and Minimum
pressure” are according to the operating pressures of the pipeline
Check that parameter “Max pressure drop ACQVC” is set “available” and the value is correct
open the actuator, and set “Enable” if the operating mode is “Acqui Valve Control”.
Check that icon in the HOME page of ITVC display is .
If the ITVC is fitted with battery pack see the procedure in the paragraph “Battery option” to enable it.
If the pressure drop rate in the pipeline is unknown, it is suggested to proceed as follows:
set the parameter “Max pressure drop ACQVC” as “not available”
set the parameters “Max pressure increase” and “Max pressure decrease” as available and enter a small value,
to generate warning as described in the previous paragraphs.
Keep the system in operation for a significant time and then check the LB warning in the “Measurement”
menu. View the “Max pressure increase and decrease in the “
Monitor
” page of the Line Break parameters
(Operating mode).
Clear the Warnings. Set the “Max pressure increase” and “Max pressure decrease” as not available” or enter a
value higher than the reading in the “Monitor” page. Clear the reading in the “Monitor” page.
Set the “Max pressure drop ACQVC” as “available and enter the value measured by the above procedure.
7.2
LB-d start-up
The digital inputs and outputs should be according to the wiring diagram
The reading of the pressure transmitter should be correct and according to working pressure of the pipeline.
Deviation should be less than 5%. View the values by the procedure described in the paragraph “Visualization
of pressures” in the manual IOM-ITVC-Basic.
Check that no Alarm, MRT alarm or Warning is present (Led of pushbutton should be off).
Check the settings of LB-d parameters. Set the parameter “Enable”
Check that icon in the HOME page of ITVC display is .
If the ITVC is fitted with battery pack see the procedure in the paragraph “Battery option” to enable it
8
Installation and Maintenance
Refer to document
IOM-ITVC-Basic
. No additional instruction are requested for Line Break function.
If ITVC is fitted with battery pack, see paragraph “Battery option” in this manual
Summary of Contents for ITVC Series
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