Solartron 1287 - 5 Bandwidth; Pstatbw}; Gstat Bw

5 BANDWIDTH
Various bandwidths
may be selected for the
cell polarization control loop.
This is
to ensure the stable operation of the SI
1287,
as a potentiostat or galvanostat, in
the measurement of various cells.
5.1
{PSTATBW}
>>
The remote command for the
Potentiostatic Bandwidth
is
PB
/. Refer to
Chapter
4,
Section 6.4.
There is a selection of ten types of
bandwidth ([type
A] to
[
type J]) to suit the cell
type; this is detailed in Section 5.3.
5.2
{G
STAT BW}
>>
The remote command for the Galvanostatic Bandwidth is GB7. Refer
to
Chapter
4,
Section
6.4.
There
is a
selection
of
three
types of
bandwidth
([type A] to [type C]) to suit the
cell
type; this is detailed in
Section
5.3.
5.3
CONTROL LOOP BANDWIDTH SELECTION
The
type and the approximate bandwidths are listed
in
Table 3.3. Note
(from
footnotes of Table
3.3)
that some
bandwidths are
reduced
when
"limit" or
"cutout" is selected for the overload
type.
(See Section
2.2.)
Table 3.3
Bandwidths Available
Type Approx. Bandwidth
Galvanostat:
[Type A] 1 50kHz**
[Type B] 100kHz**
[Type C]
>7.5kHz***
Potentiostat:
[Type A] 600kHz*
[Type B] 360kHz*
[Type C] >lMHz*
[Type D] >600kHz*
[Type E] 24kHz*
[Type
F] 8kHz
[Type G] 2.4kHz
[Type H] 800Hz
[Type
1]
80Hz
[Type J]
8Hz
*
12Hz when limit or cutout selected for
O/L
type.
**
25kHz when limit or cutout selected for
O/L
type. Stable with capacitive cells when
standard
resistor
<1000.
***
5kHz
when limit or cutout selected for O/L type.
JWS
/
S!
1 287 User Guide / Issue AF
3.13