CMRR 3.0E | User Manual
15
6.1.1.4
Electrode with Impedance
Select [Electrode with Impedance] and click the arrow button (or double click to have all the options to
show in the separated page) to choose whether to add 10
KΩ/47nF
parallel circuit to the test electrode
(Electrode with/without Impedance).
Adding 10
KΩ/47nF
to all or none of the electrodes is referred to
balanced test. Adding 10
KΩ/47nF
to one of the electrodes, or all the electrodes except one, with the
others in the opposite, is referred to imbalanced test. Available settings for CMRR 3.0E are as follows:
-
Electrode with Impedance: None, none of the electrodes is added 10
KΩ//47nF
parallel circuit,
balanced test
-
Electrode with Impedance: RA (LA/LL/V1~V6), only RA (LA/LL/V1~V6) is added 10
KΩ//47nF
and
the other electrodes are not, imbalanced test
-
Electrode with Impedance: All, all of the electrodes are added 10
KΩ//47nF
parallel circuit,
balanced test
-
Electrode without Impedance: RA (LA/LL/V1~V6), all of the electrodes are added 10
KΩ/47nF
except RA (LA/LL/V1~V6), imbalanced test
Figure 6-4, options in
“Electrode with Impedance”
6.1.1.5
DC Offset
Select [DC Offset] and use the arrow button to choose whether to add ±150 mV DC offset or not. ±150
mV DC offset has to be tested on the electrode with imbalanced test. For example, choosing [RA] for
[Electrode with/without Impedance] allows [±150 RA] to be chosen for [DC Offset]. There are 9 electrodes
available for ±150 mV DC offset in total: RA, LA, LL, V1, V2, V3, V4, V5, V6.
As per the circuit diagrams in related standards, ±150 mV can be added only to [RA] for imbalance and DC
offset testing.
