64 of 220 Anatel A643a Setup - Anatel A643a
RPS - June 2007 - Edition 12
Operator Manual Anatel
the Sample Time must be limited, the setting should allow a 60 mL sample flow through the
instrument with an additional 25 mL for each meter of 1/4” tubing traveled. Measure the flow
through the instrument during the preoxidation Sample Time and calculate the time necessary
for this volume of water. The flow rate can be checked and verified with a stopwatch or second
hand and a beaker or graduated cylinder.
To set the instrument’s Sample Time:
1) With the Times & Cycle Menu displayed, use the Up and Down Keys to specify
Sample Time.
2) Press Enter to access its parameter screen. The current Sample Timeis displayed in
an hour:minute:second format and represents duration, not clock time. The flashing
block cursor highlights the hour division.
3) Use the Up and Down Keys to specify the time division to be changed.
4) Press Enter to enable the Controller’s Edit Mode and the flashing block becomes an
underscore.
5) Use the Up and Down Keys to scroll until the desired period is displayed. A minimum
Sample Time of one minute is recommended for the best TOC analysis results.
6) Press Enter to update the setting and advance to the next time segment.
Fig 5-22 : Sample Time Screen
1 SENSOR NAME
Sample Time
00:01:00 h:mm:ss
S/T to change
Fig 5-23 : Sample Time Displayed
1 SENSOR NAME
Sample Time
00:03
:00 h:mm:ss
S/T to change
Fig 5-24 : Change Sample Time
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