Thales Z-Max Operation And Application Manual page 61

Receiver initialization using the Power button:
When initializing the receiver using the power button, parameters will be reset
to default values, ephemeris and almanac information will be cleared, and the
SD card will be reformatted.
1. With the receiver powered OFF, press the Power button for at least 5
seconds.
2. The display will show "re-init", indicating the receiver is in the initialization
process.
3. The initialization process will take several minutes depending on the size of
the SD card. The front panel will continue to display re-init until the process
is complete. When complete, the receiver will be powered on and in the
normal state with the front panel displaying "SYSINFO" and the SD card is
ready to use.
After a complete reset, the receiver does not have current information about
where it is or where the GPS satellites are. If the GPS antenna has a
reasonably good view to the sky, within a few minutes, the receiver should
begin to track satellites and the SV/Power LED should blink green one or
more times between each red blink. It will blink green once for each satellite
that is being tracked.
Within 15 minutes of tracking a satellite, the receiver will acquire satellite
almanac data that provides the location of all the GPS satellites in the sky.
After almanac data is stored, acquisition of satellites and data recording
should begin within 10-20 seconds of a power cycle.
Step 8: Monitor System Operations
With the receiver powered up and operational, several receiver functions can
be quickly checked to get status information and ensure that everything is
working. Some of these functions are checked via the LEDs and some are
checked using the front panel display. While Chapter 4 provides much more
in-depth information regarding the front panel display and the menu tree,
these quick step-by-step procedures will supply a quick tutorial to the Front
Panel User Interface.
Power/Satellite Status
To verify that the power is on and all available satellites are being tracked:
1. Check the SV/Power LED.
2. It should blink RED once per second to indicate that power is on, and blink
GREEN several times between each RED blink. It will blink once for each
satellite that is being tracked. With the knowledge of how many satellites
are visible, verify that all available satellites are being tracked. The number
38 Z-Max Surveying System Operation and Applications Manual