Bowers Group Baty - Lever Type Dial Test Indicator BL Series - Manual

LEVER TYPE DIAL TEST
INDICATOR INSTRUCTIONS
For more information visit www.baty.co.uk
precision measuring instruments
Lever Type Dial Test Indicators
– BL Series
Please carefully review these instructions to ensure proper and accurate
use of your new Test Indicator.
Mounting of Mounting Shaft
Slide mounting shaft onto dovetail which is best suited for measuring and
tighten (fig. 1). Mount indicator rigidly and as close as possible.
Measuring
For accurate measurements the axis of the contact point must be perpendi-
cular to the measuring direction (fig. 2). If this is not possible, it is necessary
to multiply the reading on the dial with a correction factor, which depends
on angle ∂ (fig. 3). The correction factor is negligible for angles below 15º.
Angle ∂: 15º 30º 45º 60º
Correction factor: 0.96 0.87 0.70 0.50
Maintenance
No special maintenance is required. The bearings of the indicator must not
be oiled.
Example
Angle ∂ : 30º (estimated)
Reading on dial: .015"
Measurement value: .015" x .87 = .013"
fig. 3
fig. 1
fig. 2
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