PC-505B Manual, Rev. 201013
Warner
Instruments
A Harvard Apparatus Company
15
FILTER TELEGRAPH
–
Output BNC reporting the filter setting in use. Telegraphs range from
0.2 to 2.0 V in 0.2 V steps as shown below.
Filter telegraph settings
Frequency (Hz)
telegraph out (V)
50
0.2
100
0.4
200
0.6
500
0.8
1k
1.0
2k
1.2
5k
1.4
10k
1.6
20k
1.8
Bypass
2.0
SYNC OUT
–
Sync out provides a TTL pulsed output for synchronizing an oscilloscopes or
other equipment with the internally generated 50/60 Hz
TEST PULSE
or
SPEED TEST
signal.
Rear panel connectors and controls
In addition to input and output BNC’s, the instrument
rear panel also contains the
headstage cable connector, calibration trimmers, and selector/function switches for
PSTAT
and
SPEED TEST
modes.
Headstage cable connector
–
The headstage connects to the instrument via an 8
–
pin DIN
connector.
PSTAT
switch
–
The
PC
–505B
is converted to operate as a potentiostat for voltammetric
measurements by a clockwise rotation of this switch. When switched
on
, the front
panel
PSTAT
indicator LED will light. In this mode, the maximum electrode voltage
hold potential is increased to ± 1 V and the
COMMAND IN
attenuator is modified to
allow command inputs up to ± 2 V.
SPEED TEST
is used to re
–
adjust the rear panel boost trimmers, normally only required
when replacing a headstage. These adjustments are factory set for the headstage
supplied with the instrument.
CMR
,
BOOST
, and
GAIN
trimpots are factory set. User adjustment may be required if a
headstage is replaced. Adjustments instructions are provided with the new
headstage.
