eDAQ e-corder, Manual

Page: 27 / 112

Chapter 3 — The Dual Picostat 23
Electrode Cable
The Dual Picostat is supplied with two three-lead electrode cables, with
each lead terminated by an alligator clip. The Reference and Working
electrode leads are shielded to protect the signals from external
interference. The alligator clips allow connection to a wide variety of
electrodes. The leads are color-coded to indicate the type of electrode
to which they should be attached (
Table 3–1 ).
For normal three-electrode use, the reference electrode must never be
connected to either the auxiliary or working leads, otherwise the current
that would be passed through the reference electrode could effectively
destroy it as a reference potential source.
If two-electrode operation is required the auxiliary and reference
electrode leads (red and yellow) can be attached to the single ‘counter
electrode’. The green electrode lead is attached to the working
electrode.
When attaching the cable to the Dual Picostat make sure that the red
dot on the cable connector is aligned with the top of the Dual Picostat
electrode connector,
Figure 3–2 . Insert the cable connector and push
gently until it locks into position. To remove the cable pull the knurled
connector body gently until it disengages. Do NOT twist the connector,
or pull on the cable! The cables can be left in position when not in use
which will extend cable life-time by minimising ‘wear and tear’.
The Power Indicator
Located at the left of the front panel is the Power indicator, Figure 3–1
which will illuminates when the unit is powered up.
Color Electrode
Yellow Reference
Green Working
Red Auxiliary
Status
Power
Trigger
Table 3–1
Color-coding on the
leads of the electrode
cables.