Calculated Industries 4087 User Manual - — 51
U
ser
'
s
G
Uide
— 51
8. Find the Maximum Pitch Diameter:
R
PTCH+
SIZe
0.3331
INCH
R
WIRe
SIZe
$
0.04
INCH
* If no Wire Size is entered, the calculated Ideal Wire Size will be used
to find the 3-Wire Measurement.
Pitch Diameter – Known 3-Wire Measurement and Wire Size
You can also find the measured Pitch Diameter if you know
the 3-Wire Measurement and the Wire Size used to obtain the
measurement.
Find the Pitch Diameter of a 3/8-16, Class 2A (External) screw
with a 3-Wire Measurement of 0.3975 Inch obtained using a
0.040" wire:
KeySTROKe
DISPLAy
O O
0.
1. Enter the Thread Size:
3 / 8 t
SIZe
3/8 –
INCH
2. Enter the Threads per Inch and store the final Thread Size:
1 6 t
THReD
SIZe
$
3/8 –
16
INCH
3. Set the Thread Class to 2A:
2 g b
* (Thread Class)
eXT 2A
* If necessary, continue pressing
b
until the desired External Thread
Class is displayed.
4. Enter the Wire Size*:
. 0 4 g f
(Wire Size)
WIRe
SIZe
$
0.04
INCH
5. Enter the 3-Wire Measurement:
. 3 9 7 5 g R
(3-W Measure)
3WIRe
SIZe
$
0.3975
INCH
(cont’d)
KeySTROKe
DISPLAy