TERMINAL STRIP
A 16-connector terminal strip allows connections for the following functions:
REMOTE
Connections here allow remote REZERO (AUTO-ZERO) and MARK (CHART MARK).
The functions operate identically to those on the front panel, but are initiated by a
switch closure to ground, or a low level TTL signal, from a remote instrument such as
an autosampler or integrator.
OUTPUT
Both 1 V and 10 mV outputs are provided. These outputs are identical to those from
the banana jacks described above, and merely provide a bare-wire alternative for con-
nections.
APP E
Connections are provided for both control and monitoring of working-electrode applied
potential. The EIN connector takes an externally applied voltage and adds it to the work-
ing electrode. Thus, if you apply 0.6 V to this connector, and 0.2 V via the front-panel
controls, the working electrode will be at 0.8 V relative to the reference electrode. The
correct value of 0.8 V will be displayed in the App E section of the front-panel display.
The EAPP connector can be used to monitor the applied potential with an external volt-
meter, and may be used in the self-test procedure (see Appendix I, page 41).
GEN
This section of the terminal strip concerns the generator electrode. The IGEN connector
provides an output for monitoring the current produced at the generator. Ranges are se-
lected at the rear-panel dip switches G and H (see below). Connect leads to IGEN and
GND to monitor this output. This is a 1 V signal.
Potential is applied to the generator electrode via a connection to WGEN. The WGEN
lead has a male pin connector at the electrode end and two wires at the other end. Con-
nect the male pin to the generator electrode, the insulated wire to the WGEN connector
on the terminal strip, and the bare wire to the GND connector of the terminal strip.
WGEN is LIVE whenever the CELL switch is ON. Therefore, disconnect the GEN lead
from WGEN when not using the generator. Alternatively, cover the live end of the lead
with an insulator (a 200
µ
L pipette tip works well). Otherwise, DAMAGE TO THE IN-
STRUMENT MAY RESULT!
EGEN ADJ
See GENERATOR-ELECTRODE POTENTIAL (Section 4.1, page 24) for a description of this
feature.
Section 4. Operating the Electrochemical Detector
28
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