CHART Trifecta Pro Series, Руководство по эксплуатации продукта

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55 Product Manual - Trifecta
®
Pro Series
If the regular maintenance procedure is followed,
troubleshooting should not be necessary If problems do
occur, the following is a step-by-step troubleshooting guide.
If you are not familiar with normal Trifecta Pro Series
operation, please read the Operation section of this manual
before continuing
While troubleshooting the Trifecta Pro Series, there are five
things that should be monitored or checked for inconsistency
to aid in diagnosis:
1 Confirm all valves on the bulk tank and Trifecta Pro
Series are in their normal operating position
2 Confirm solenoids energize correctly by manually
“firing” them per the instructions in the Operations
section of the manual
3 Check for frost formation on lines which should not
have recently been active
4 Leak check all plumbing components
5 Check for discrepancies between analog gauges and
controller parameters
The above steps are described in greater detail below and
will lead you to the root of the malfunction
Confirm Valve Positions
• Confirm that the following manual override on all valves
are in the correct position:
– Bulk Tank Auxiliary Liquid Valve Open
– Bulk Tank Pressure Building Valve Open
• All five solenoid (15k) valves on Trifecta Pro Series –
manual override hand wheel in the “Out” position (fully
counterclockwise)
Normal Activation of Solenoids
Open HMI cover giving you access to the PLC screen Per
the Operations section of this manual, switch the controller
to “Manual” and open each solenoid Make sure all valves
energize accordingly
Troubleshooting
Frost Formation
Frost forms on all lines that have cold vapor or liquid flowing
through them The frost will begin to thaw when product is
no longer flowing through the lines.
The frost will be evident for any significant amount of flow
through the lines. Simply by looking at the frost formation, a
check valve and/or solenoid, which are leaking or inoperable,
can often be detected
Likewise, lack of frost on a line will indicate that product is
not flowing through the line and that a solenoid is stuck shut
or for some reason not firing properly.
Leak Check
Leak check all plumbing components, with special attention
to plumbing stack on tank and all connections to pressure
transmitters
• A leak at any point in the Trifecta Pro Series system will
result in loss of product
• A leak in the plumbing within the plumbing stack or
pressure transducers and transmitters can cause incorrect
values to be translated by the PLC These transducers
provide the input to the Trifecta Pro Series controller,
which tell it when to open and close solenoids Incorrect
values will cause the Trifecta unit to operate in a random
fashion and could cause supply issues downstream
Data from Main Screen and Analog
Pressure Gauges
Record Trifecta Pro Series and bulk tank parameters as
described in the Parameter Settings section of this manual
Compare these values to those on the analog gauges of the
tanks and the bulk tank (an example form is on the next
page )