Baker Hughes Panametrics XDP, User Manual

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3.4 Powering up the system
Check the wiring connections and close both the XDP and
transmitter enclosures before applying power. Energize the
external disconnect device to power up the XDP. Allow the
transmitter to warm up for at least thirty minutes, before
taking measurements.
WARNING!
The XDP requires an external power
disconnect device such as a switch or
circuit breaker. The disconnect device must
be marked as such, clearly visible, directly
accessible, and located within 1.8 m (6 ft) of
the unit.
3.4.1 The enclosure window
The window at the top of the XDP enclosure includes the
components shown in Figure 9 below.
XDP
Display window
ENTER key
RIGHT arrow
DOWN arrow UP arrow
LEFT arrow
ESC key
Figure 9: The enclosure window
The XDP is factory-configured to display O2 ppm/pcnt with
a resolution of 0.01 as the default. However, changing the
gas label, the gas units, and the display resolution are easily
accomplished. See "Chapter 4. Setup" on page 19 , for
programming instructions.
IMPORTANT
The XDP magnetic keypad permits programming of the
instrument through the glass faceplate without removing
the cover. Thus, all programming procedures may be
performed while the unit is installed in a hazardous area.
3.4.2 Initial screen displays
Immediately upon power up, the digital display shows the
following sequence of informational screens, as the meter
performs its internal systems checks.
This is a typical example
of the first initialization
screen.
This is a typical example
of the second initialization
screen.
This is a typical example
of the final initialization
screen.
If the meter passes all of its internal system checks, the
following initial data screen appears:
Notice that the absence
of a valid signal has
triggered the low low
alarm (the LL symbol in the
lower right corner).
NOTE: The padlock icon at the upper right hand corner of
the above display indicates that the user program is locked
with password protection.
3.4.3 Starting the sample gas
Start the sample gas flow to the transmitter and allow a few
minutes for the system to reach equilibrium. The following
data screen should appear if the oxygen level is above the
low alarm setpoint and below the high alarm setpoint.
This is a typical display.
The actual oxygen
concentration of your
sample gas will be shown
here.
NOTE: Allow approximately 30 minutes for the sensor to
reach temperature equilibrium, to ensure accurate readings
Notice that the display shows the
slot number , the gas label ,
and the current time on the top line. The current data value
along with the units are displayed across the bottom of
the screen.
NOTE: Slot 0 is the main circuit board, slot 1 holds the XDP
circuit board, and slots 2-4 are normally not used.