Section 4. Operation
Polarity of Remote Stir
Control
The factory-set polarity for control of the remote stir line is active low (e.g., low signal turns
stir ON, high signal turns stir OFF). If opposite stir control polarity is needed (e.g., active
high), then remove the jumper on the C3 printed circuit board (Figure 8) and place it on
only one pin. The jumper is accessible after removing the side panel near the switches on
the C3.
Figure 8. Location of Remote Stir Control Polarity Jumper
Front Panel Controls and
Connections
1. Power LED. LED is lit when C3 is powered (on/off switch is located on back panel).
2. Stir-LED. LED is lit when stir is turned on, either manually or remotely.
3. Stir Control. Switch to manually control stirrer or to select remote control.
4. Stir Rate Switch. Switch for selection of one of 16 available stir rates.
5. Gas Purge LED. LED is lit when gas purge is turned on for sample vial, either
manually or remotely. When LED is off the gas flows through the blanket line.
6. Gas Purge Control. Switch to manually control gas flow to purge or blanket lines or
to select for remote control.
7. Gas Purge Flow Control. Needle valve control of gas flow to purge and blanket lines.
8. Latch/Ground Socket for Faraday Cage.
9. Reference Electrode Lead. White lead connected to reference electrode.
10. Gas Purge and Blanket Lines.
11. Working Electrode Lead. Black lead connected to working electrode.
12. Auxiliary Electrode Lead. Red lead connected to platinum wire auxiliary electrode.
13. Standard Addition Port.
14. Cell Top Height Adjustment Knob.
15. Stir Motor.
JMP1
Section 4. Operation
12
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