The document discusses a 45 second process for determining if an ANOVA or XBAR&R gauge repeatability and reproducibility (GRR) test will pass at 10% or 5% without fully developing the test program or loadboard. It offers to provide information on how instrument specifications, qualification sample location, and infrastructure can affect GRR. The tool described allows the user to input specification limits, conditions, number of instrument errors, and receive advice on measurement ranges that will achieve the desired GRR.

1. To all the test engineers out in test land. If your manager says that you an unlimited amount of time
and money to develop and tweak your test program and redo loadboards that have problems, then
read no further.
If however, you are interested in learning a 45 second process to KNOW that ANOVA GRR or
XBAR&R GRR will pass at 10% or 5%, please contact me. Skype: venanzio0812, email:
analog_test@runbox.com
Learn how much the instrument specification alone affects GRR.
Learn how qualification samples location affects GRR.
Learn how to put infrastructure in place so that 45 seconds of time spent per test will allow you know
before the test program is written and before the loadboard is built to avoid lost time and lost money.
Select USL, LSL, condition, and # of instrument errors. The tool will advise which ranges will achieve
the desired GRR.
USL Value 80.6482645E-3 72.0000000E+0 Condition (Amperes) >10% GRR
LSL Value 26.6666667E-3 10% GRR 5% GRR
Float Voltage 000.0000000E+0 ±100% ±100%
Mode MV Sample Selection Criteria: Change on ListData Sheet M2
#Instrument Errors 20 NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE NO TARE
RANGE LOWEST
CAPABLE
VALUE
(LCV)
LSL/LCV
>1.1 OK
DIFFERENCE
CAPABILITY
(mV)
USL
ERROR
(V)
LSL
ERROR
(V)
(USL-LSL)/ΔCV
>1.1 OK
TSR
WORST
CASE
SIGMA FOR
GRR
INSTRUMENT
SPEC
CONTRIBUTION
GRR ANOVA
INSTRUMENT
SPEC
CONTRIBUTION
GRR XBAR&R
USL
% ERROR
LSL
% ERROR
DIFFERENCE
CAPABILITY
% ERROR
Base Instrument instr Mode Range
MFHP-GANG 6 V/I - Pulse MV 2V/72A 24.24E-03 1.100 49.07E+00 1.24E-03 1.21E-03 1.100 288.02E+00 187.42E-06 7.90% 8.49% 1.54% 4.55% 4.55%
MFHP-AWG-GANG 6 AWG V/I MV 2V/72A 24.24E-03 1.100 49.07E+00 1.24E-03 1.21E-03 1.100 288.02E+00 187.42E-06 7.90% 8.49% 1.54% 4.55% 4.55%