Atlas Copco Power Focus 3000 User Manual

Statistic
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19 Statistics
Power Focus has extensive statistics functionality. The values are updated after each tightening, and can
be shown on the display in real time, or sent to a PC. It is also possible to send statistical reports to a
printer. On the front panel of PF there is a LED for statistical alarms.
Settings are made in PF Map>Pset>Statistic Programming. Statistics are calculated based on the following
result parameters:
Result
Unit
Description
Torque
Nm*
Final torque in selected tq presentation unit.
Angle
Deg
Final angle in degrees.
* = Other units can be used.
The following statistical results are calculated and displayed for torque and angle parameters:
Results
Description
# Results
Total number of results that the stat calculations are based on for the analyzed Pset.
Min
Lowest result in analyzed Pset
Max
Highest result in analyzed Pset
R
Range (Max - Min)
Low
% low tightenings in analyzed Pset
OK
% OK tightenings in analyzed Pset
High
% high tightenings in analyzed Pset
X
The mean value for the selected Pset
σ
Sigma. Shows the calculated standard deviation. σ
X
-3 σ
Mean - 3 sigma
X
+3 σ
Mean + 3 sigma
6 σ
6 sigma
Cr
Cr is a calculated viability number (capability). The lower the value, the better the process.
Cp
Cp is a viability factor. The higher the value the better process.
Cpk
Cpk is a viability factor. The higher the value the better process.
Cam
Viability factor. The higher the value the better the process.
Sub-group
results
Description
Min
Lowest result in the latest completed subgroup
Max
Highest result in the latest completed subgroup
R
Range for the latest completed subgroup

Atlas Copco Power Focus 3000 Specifications

General

Brand	Atlas Copco
Model	Power Focus 3000
Category	Control Systems
Language	English