Calculated Industries 6414 - Manual (Page 47)

Q: I’ve taken several measurements for the same thing but the mea-
surements are different. Is something wrong with the DigiRoller?
A: When you are measuring a distance, you need to ensure that you
start and stop your measurement while holding the DigiRoller at
the same angle (preferably upright or vertical). If you do not, your
measurement may be inaccurate. When you move the unit from
an angled to a vertical position or vice versa, the unit will add or
subtract by as much as 4-8”, therefore changing the overall mea-
surement. Also, rolling the unit backwards will subtract measure-
ment units.
Q: My wheel “wobbles” when I roll the unit – is this normal?
A: When the wheel starts to wobble, you should check two things: 1)
check that the flat spot inside the wheel hole and the flat spot on
the axle shaft are aligned; 2) check that the hub cover is on finger
tight (approximately 1/2 additional turn after the wheel hub
cover touches the wheel surface).
45 – User’s Guide