Toc; General Tab - Hach Anatel PAT700 User Manual

Setup

5.3 TOC

5.3.1 General tab

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The TOC icon allows you to modify the settings for the TOC operating mode. Any
changes are stored in the settings file and become the defaults.
Figure 33 TOC setup dialog box, general tab
Flush time text box allows you to specify the amount of time to flush the cell prior to
beginning a TOC analysis. You may specify a time in hh:mm:ss format between 00:00:00
and 23:59:59. The default value is 00:01:00.
Cycle time text box allows you to specify the minimum amount of time between
automatic TOC analyses. Any value less than the actual elapsed time causes the next
analysis to begin immediately. You may specify a time in hh:mm:ss format between
00:00:00 and 99:59:59. The default value is 00:00:00.
Use pump checkbox determines whether or not to use the pump for online sampling.
You may enable or disable this option. If enabled, the analyzer turns the pump on any
time water needs to be drawn from the online water source to the cell. If disabled, the
analyzer does not use the pump for this action. Due to the potential risk of damage to the
pump by using it with a positive pressure water source, enabling this option displays a
message asking you to confirm this choice. The default setting for this option is disabled.
Note: Using the sample pump on a pressurized system could damage the pump. Do not use the
pump on a pressurized system.
Bypass flow during analysis checkbox allows you to enable or disable bypass flow.
Bypass flow enables continuous flow of sample water through the analyzer, bypassing
the analysis cell, during TOC analysis. The bypass valve is open when the sample is
captured and closed when the analysis is complete. If enabled, the bypass flow valve
opens at the beginning of the flush. If disabled, this valve remains closed. The default
setting is disabled.