Bacharach PCA 400 - Button Sound; Inactivity Timeout; Post-Purge Period; Carbon Monoxide (CO) Zero

0024-9551 Revision 1
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PCA
®
400 User Manual
4.4 Button Sound
The analyzer includes a sound transducer which beeps to signal when a button has
been pressed. The audible notification can be turned OFF and ON by changing the
user preferences.
Enabling / Disabling Button Sound
f To enable / disable Button Sound: Main Menu  Settings ( )  Button Sound  select
No or Yes
4.5 Inactivity Timeout
When enabled, the Inactivity Timeout feature will cause the analyzer to POWER DOWN if no
touch screen or keypad activity occurs within the selected duration.
Enabling / Disabling Inactivity Timeout
f To change the inactivity timeout settings: Main Menu  Settings ( )  Inactivity Timeout
 select None, 20-minutes, 30-minutes or 60-minutes
4.6 Post-Purge Period
Purge feature at shutdown; if enabled, species a duration time (None, 1, 5, or 10 minutes)
during which the analyzer’s pump will remain on in order to purge gases from the analyzer
and probe after a shutdown request has been initiated.
Enabling / Disabling Post-Purge Period
f To change the Post-Purge Period settings: Main Menu  Settings ( )  Post-Purge Period
 select None, 1-minute, 5-minutes or 10-minutes
4.7 Carbon Monoxide (CO) Zero
Congures the analyzer’s CO zeroing process to be done either manually or automatically.
Manual Zero
When the CO channel is set to Manual Zero, the analyzer does not zero the CO sensor to
ambient conditions during start up. In this mode, the “fresh air zero” established during
manual mode setup is stored in memory and used for the measurement of CO.