Crystal DataLoggerXP Digital Pressure Gauge Software - Manual (Page 6)

Functions  4
XP2i Operation Manual
clear
zero
resetting (clearing) recorded Peak Values
Peak values can only be cleared when displaying either a Peak High or Peak Low recorded pressure. Press the
(
clear
)
button for at least ½ second. Dashed
lines will briefly appear across the display indicating that both Peak values have been cleared. Both Peak High and Peak Low values will then display the cur-
rent applied pressure. Pressing the
(
clear
)
button while either the Peak High (
HI
) or Peak Low ( LO ) icon is displayed will not affect the zero value. If you
need to rezero the gauge, you must turn off both peak icons by pressing the
(
peak
)
button.
clear
zero
Zero
If you attempt to zero the gauge while applying a pressure which exceeds the Zero Limit (set in ConfigXP, defaults to 20 psi),
the command will be ignored and “--HI-” will be displayed.
X to Zero the XP2i
Turn off peak indication by pressing the
(
peak
)
button repeatedly until the HI and LO icons are off, then press the
(
zero
)
button for at least ½ second when
the gauge is vented to atmosphere.
The display will then briefly flash all dashed lines (
), indicating that it has been re-zeroed. Absolute gauges will now indicate gauge pressure.
!
WaRninG: this gauge can display zero pressure when connected to a source of pressure! do not rely on the display indication before disconnecting—
it may not be indicating true pressure. never disconnect pressure instrumentation without first relieving system pressure!
X to clear the Zero Value on an XP2i
Turn off peak indication as described above, then press and hold the
(
zero
)
button until the display changes from (
) to ( ).
This is especially useful for absolute gauges that have been zeroed to use for gauge pressure measurement.