Sokkia CX-52 Operator's Manual page 253

Time out (during measurement)
Measuring conditions are poor, and due to the insufficient amount of reflective
light, measuring could not be carried out within the time specified.
Resight the target. When using reflective prisms, effectiveness will be
improved by increasing the number of prisms used.
Too short
Input password has fewer than 3 characters. Password must have 3 or more
characters and 8 or fewer characters.
* * * * * * * *
The calculated result is too large to be displayed on the screen in its totality.
32. WARNING AND ERROR MESSAGES
245