Appendix d: nz-­‐cal component values – Multichannel Systems nanoZ manual User Manual

Page 43

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39

Appendix  D:  NZ-­‐CAL  Component  Values  

The following table shows the channel mapping for the bank of test resistors (1%
tolerance) and capacitors (5% tolerance) on the supplied NZ-CAL adaptor.

channel

R (MOhm)

C (nF)

channel

R (MOhm)

C (nF)

1

6.8

-

17

short circuit

-

2

10

0.1*

18

0.12

-

3

4.7

-

19

1.0

-

4

3.3

-

20

1.0

-

5

20

-

21

0.0051

-

6

2.2

-

22

0.51

-

7

1.0

-

23

0.010

-

8

1.5

-

24

1.0

-

9

10

-

25

-

100

10

1.0

-

26

-

10

11

1.0

-

27

-

1.0

12

0.82

-

28

-

0.22

13

8.2

-

29

-

0.033

14

1.0

-

30

0.020

-

15

13.3

-

31

1.0

-

16

open circuit

-

32

0.051

-

* R and C in parallel

The measured phase angle of pure resistors should be 0°, with an impedance
that is independent of test frequency, whereas pure capacitors should report a
phase angle of -90°, with an impedance magnitude that varies inversely with
frequency. For comparison, most electrophysiology electrodes will have a phase
angle between -50° and -80°, depending on the electrode metal and coatings.

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