Select Minor Tick Marks on the Radial Scale Properties dialog box to define the appearance of tick marks on the scale of an individual linear gauge. Minor tick marks are marks placed in between intervals on the scale of a gauge.
By default, the gauge calculates the intervals automatically based on the minimum and maximum of the scale. If you specify an interval, this value will be used to determine how many tick marks are on the gauge. An interval offset is a constant value that is added to the interval on the scale.