Sokkia RADIAN IS, Operation Manual, Page: 26 / 74

20 RADIAN™IS
Chapter 3 Radian IS Components
compartment, will extend. If you attempt to insert the card
incorrectly, the card will not go all the way in, and the eject
button will not extend. In this case, do not force the card!
Remove it, orient it properly, and then re-insert it. After the card
is locked in place, close the access door.
To remove the data card, open the Radian IS access door to gain
access to the card. When the door is open, you will see an eject
button to the left of the card. You must push this button to
partially eject the card; then grasp the card and pull it all the
way out.
The data collection mechanism is designed to be robust and to
endure power interruptions (and similar disruptive events)
with minimum loss of data. In these situations, less than 5
minutes of data (prior to the disruptive event) are lost. When
possible, error messages are generated to identify problems as
they arise.
3.2.3 Battery
The Radian IS incorporates two internal Sokkia BDC46 Li-Ion
batteries (or equivalent).
While one of the internal batteries is powering the Radian IS,
the non-active internal battery can be replaced without
disrupting operation of the Radian IS. For information on
inserting and removing a battery, see Section 3.2.3.1, Inserting
and removing the battery, on Page 21.
CAUTION
Ejecting the data card during a data-recording session will
cause data to be lost. If the memory LED inside the
compartment is flashing, you know that data is being
recorded to the card. When no data is being recorded,
however, it is not necessary to turn the Radian IS off before
inserting or extracting a data card.