82 Setting PowerLine Controller Operating Parameters
2. Type a value:
• For a UV detector, between 0.1 and 99.99 (seconds). (The default is 1 second).
Press Enter.
• For an RI detector, 0.2 (default), 1.0, 3.0, or 10.0. Press Enter.
• For a 431/432 conductivity detector, Slow (1.0 sec.), Std (0.5 sec.), or Fast (0.25
sec.).
Autozero
Specifies whether the detector should zero its output at every injection.
To set the Autozero parameter:
1. Move the cursor to the Autozero field for the particular detector.
2. Type 1 (default) to enable, or 0 to disable, the autozero feature.
3. Press Enter.
Note: See the appropriate conductivity detector operator’s manual for details about the
autozero operation that is controlled by 600 Controller events.
Polarity
Specifies whether the data output of the detector is positive or negative.
Note: This parameter affects only the detector 10 mV full scale output, except for the
Waters 431/432 in which case both the 1 V output and the 10 mV output are affected.
To set polarity:
1. Move the cursor to the Polarity field for the particular detector.
2. Type 1 for positive (default) or 0 for negative polarity.
3. Press Enter.
Balance
Besides the parameters described above, the 431/432 detector (Det #3) setup parameters
contain a field for manually setting the percentage of baseline offset of the external chart
recorder attached to the detector.
To set the baseline offset:
1. Move the cursor to the Balance field.
2. Type the appropriate offset percentage value.
3. Press Enter.