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Strange Impedance Measurements Running cn0565_prod_tst and the included GUI

Thread Summary

The user encountered issues with the CN0565 measurement board, specifically with the Electrode 2 - Electrode 3 test failing. After reviewing the setup and measuring components with a multimeter, the board passed the test, likely due to a tolerancing issue. The board's serial number is 08-074522.
AI Generated Content
Category: Hardware
Product Number: CN0565

Sorry for the repeated posting,

I'm having some troubles with my CN0565 measurements board. When running cn0565_prod_tst in the included examples i get the following outputs:

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Electrode 0 - Electrode 1
R26_C56_C57 - R24_C54_C56
Rectangular: (40773.73828125+2632.3623046875j)
Polar: Magnitude:40858.622893227956 Phase(degrees): 3.6939028412330157 or 363.693902841233
Real Impedance: 40773.73828125
Imaginary Impedance: 2632.3623046875
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Electrode 0 - Electrode 1 - PASSED!
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Electrode 2 - Electrode 3
R22_C52_C54 - R18_C50_C52
Rectangular: (437.9356384277344-233.49783325195312j)
Polar: Magnitude:496.2951355176315 Phase(degrees): -28.065576356147155 or 331.9344236438528
Real Impedance: 437.9356384277344
Imaginary Impedance: -233.49783325195312
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Electrode 2 - Electrode 3 - FAILED!
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Electrode 4 - Electrode 5
R16_C48_C50 - R14_C46_C48
Rectangular: (2821.06591796875-22703.478515625j)
Polar: Magnitude:22878.075741263092 Phase(degrees): -82.91690383310427 or 277.08309616689576
Real Impedance: 2821.06591796875
Imaginary Impedance: -22703.478515625
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Electrode 4 - Electrode 5 - PASSED!
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Electrode 6 - Electrode 7
R12_C44_C46 - R10_C42_C44
Rectangular: (21292.71484375+447.63616943359375j)
Polar: Magnitude:21297.419645521302 Phase(degrees): 1.204350220059434 or 361.20435022005944
Real Impedance: 21292.71484375
Imaginary Impedance: 447.63616943359375
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Electrode 6 - Electrode 7 - PASSED!
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Electrode 8 - Electrode 9
R8_C40_C42 - R9_C38_C40
Rectangular: (462.4922790527344-961.8218994140625j)
Polar: Magnitude:1067.2396518007881 Phase(degrees): -64.31941494835138 or 295.6805850516486
Real Impedance: 462.4922790527344
Imaginary Impedance: -961.8218994140625
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Electrode 8 - Electrode 9 - PASSED!
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Electrode 10 - Electrode 11
R4_C36_C38 - R2_C29_C36
Rectangular: (10871.4755859375-22.801788330078125j)
Polar: Magnitude:10871.499498099889 Phase(degrees): -0.12017175687200571 or 359.879828243128
Real Impedance: 10871.4755859375
Imaginary Impedance: -22.801788330078125
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Electrode 10 - Electrode 11 - PASSED!
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Electrode 12 - Electrode 13
R1_C29_C33 - R3_C33_C37
Rectangular: (8365.4716796875-32475.75390625j)
Polar: Magnitude:33535.88687067878 Phase(degrees): -75.55512914823667 or 284.4448708517633
Real Impedance: 8365.4716796875
Imaginary Impedance: -32475.75390625
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Electrode 12 - Electrode 13 - PASSED!
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Electrode 14 - Electrode 15
R5_C37_C39 - R7_C39_C41
Rectangular: (160.69387817382812-9971.650390625j)
Polar: Magnitude:9972.945103395197 Phase(degrees): -89.07675422185 or 270.92324577815
Real Impedance: 160.69387817382812
Imaginary Impedance: -9971.650390625
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Electrode 14 - Electrode 15 - PASSED!
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BOARD STATUS: FAILED
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And on running the gui I see:
Neither of these matches any documentation I could find online for either the CN0565 measurement board or the breakable resistor array. I'm wondering if this board is defective, or if I'm missing a step in the setup.
Thank you for your time.
Alexander 
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