User's Manual

1673 OPERATION MANUAL REV A
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2.7. CONTROLLER LCD DISPLAY
2.7.1. The LCD display provides information that is supplemental to the basic
operation of the 1673 RFD. The LCD is rated for -20 to 70 ºC (-4 to 158 ºF). At low
temperatures, the LCD may unreadable. In most cases, the standard LED indicators are
sufficient to complete blasting operations. In the event the display becomes unreadable
due to low temperature, normal display operation should be restored as the unit comes
back within the normal temperature range.
2.7.2. Whenever a switch is pressed, the LCD display’s backlighting function will be
enabled. After 30 seconds of inactivity, the backlighting will automatically turn off to
save battery power.
2.7.3. When the Controller is turned on by pressing the ‘ON’ switch, The Controller
goes through a series of self-tests. Once the self-testing is complete, The Controller will
show the default screen of Figure 2-5.
Figure 2-5 Controller Unit Default Screen
2.7.4. UNIT TYPE: This informs the user this is a Controller Unit (yellow box).
2.7.5. GPS ACCURACY: If the unit is equipped with GPS, data received from
satellite signals are used to record date, time, and positional information in the history
log. The GPS accuracy is a number (0-3) which represents the calculated accuracy of
the reported data. A GPS rating of ‘0’ indicates GPS has not been acquired. The highest
rating of ‘3’ indicates an accuracy of approximately 3 meters (10 feet) and the recorded
positional data is considered ‘data ok’. GPS takes approximately 1 minute to acquire
after the unit is turned on. GPS signals are not available in underground installations,
inside vehicles, or where the unit is surrounded by metal. The GPS unit will remember
the date and time when no signal is available. You can check the actual GPS