Crystal DataLoggerXP Digital Pressure Gauge Software User Manual
Page 23
Data Logging with DataLoggerXP
21
XP2i Operation Manual
ultra Low Power (uLP) Mode
The XP2i can log for extended periods with Ultra Low Power Mode, activated by the key combinations explained in
Ultra Low Power Mode takes readings in Actual Mode, according to the set logging interval. The letters
ULP
replace the live pressure reading during
a recording. You must stop the recording to view the live pressure.
To begin or end a recording hold down the
(
units
)
button.
Note:
To maximize battery life and recording time in ULP Mode, limit your use of the backlight.
operating Behavior
Each time a data point is stored, the Peak High (
HI
) and Peak Low (
LO
) icons will blink, giving you visual feedback as data points are recorded. While log-
ging is active, the unit icon will blink.
XP2i reset or Battery change
Data collected by the XP2i will not be lost with a gauge reset or battery change, although any run in progress will be stopped. A reset or battery change will
affect the operation of the gauge’s real-time clock. When the XP2i is connected to DataLoggerXP and the logging parameters are set, DataLoggerXP also sets
the gauge’s real-time clock. However, if the gauge resets, or if the batteries are changed or become momentarily disconnected (if the gauge is dropped to the
floor, for instance), the real-time clock may be reset. When this occurs, the time stamps of subsequently logged data will no longer be correct. DataLoggerXP
reacts to this by attempting to resynchronize the gauge’s clock with the computer’s clock which will allow the time stamps to be correctly read. However, if
multiple resets have occurred with the gauge, only time stamps after the last reset will be fixed. When a reset occurs, it is stored as a run with a reset event and
no data.