
Unit Operation
66
Sending a ServiceWatch Data
Logger Start of Trip
When the unit is turned on, press and hold the ENTER Key for
5 seconds to send a Start of Trip (SOT) marker to the unit
ServiceWatch Data Logger and the optional DAS Data Logger
(if equipped).
Figure 40: ENTER Key
Pretrip Test
A Pretrip Test verifies unit operation. The PRETRIP Key
allows either a Full Pretrip Test or an Engine Running Pretrip
Test to be initiated by the operator.
Pretrip Test Conditions
• The current unit settings are saved and restored at the end
of the Pretrip Test or if the unit is turned off and back on.
• The Pretrip Test can be run in either Diesel or Electric
Mode.
• The unit will auto switch from Diesel Mode to Electric
Mode or from Electric Mode to Diesel Mode during a
Pretrip Test if these features are enabled and the auto
switch conditions occur.
Conditions where Pretrip Tests are
not allowed
• Pretrip Tests are not allowed if any shutdown alarms are
present.
• Pretrip tests are allowed with some Check and Log alarms
present.
Pretrip Test Sequence
Pretrip tests proceed in the order shown below.
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