BioLogic BCS-810 - Troubleshooting; Control; Measurement Issues; EIS Verification: Dummy Cell BCS

BCS-8xx series installation manual
67
9 Troubleshooting
9.1 Control / measurement issues
9.1.1 EIS verification: Dummy Cell BCS
To verify the working state of the EIS option of your instrument, it is possible to use the DC-
BCS Dummy Cell. This Dummy Cell is only designed for verification purpose, and is not ac-
curate enough to be used as a metrological standard.
The aim is to perform an EIS measurement on the DC-BCS, and to fit the data using the fol-
lowing equivalent circuit: R1 + C2/R2 + C3/R3 + M4. The calculated values have to be com-
pared to the values in the table below.
Component
Value expected
R1
8.109 Ohm
C2
16.87e-6 F
R2
10.33 Ohm
C3
1.062e-3 F
R3
19.89 Ohm
Rd4
24.61 Ohm
t4
18.84 s
a4
0.9462
Fig. 68: DC-BCS component values and expected curves.
It is possible that the calculated values do not exactly match the values above because of the
component tolerances.