eDAQ Picostat, Руководство пользователя

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30 eDAQ Potentiostats
power to the Picostat and carries the various control signals (for gain
range and filter selection) to and from the
e-corder . A cable is provided
with the Picostat for this purpose. The pin assignments are shown in
Figure 3–4 .
The Output connector can be used for the attachment of other eDAQ
Amps.
More information about the I
2
C connector can be found in your
e-corder Manual .
Grounding Connector
The Picostat back panel, Figure 3–3 , has a 4 mm grounding socket.
This enables connection of a Faraday cage (with the green grounding
cable included with the Picostat) the use of which can greatly diminish
electrical noise. The construction of the Faraday cage can range from a
simple cardboard box covered with aluminium foil, in which the
electrochemical cell is located, to a more sophisticated copper mesh
enclosure or sheet-metal box.
In all cases, it is essential that the Faraday cage be electrically
grounded to act as an effective shield against electrical interference.
The Picostat is supplied with a green colored ground cable terminated
with a 4 mm pin (attaches to Picostat back panel) and an alligator clip
(for attachment to Faraday cage) for this purpose. The Picostat itself is
grounded via its connection to the
e-corder unit which is in turn earthed
Digital Ground Regulated –17 V DC Reg8 V DC Reg17 V DC
Power lines
SCL DSC SDA DSD INT
I
2
C control signals
Digital Ground Regulated –17 V DC Reg8 V DC Reg17 V DC SCL DSC SDA DSD INT
I
2
C control signals
Input Output
1
6
9
5 5
9
6
1
Figure 3–4
The pin assignments for
the Input I
2
C DB-9
connectors.
▲ WARNING!
The I
2
C connectors are
for the power and
control of
eDAQ
Amps, page 2 , and
should not be used for
connection to any
other device.