Hach-Lange SD900 Refrigerated Sampler, SD900 AWRS Basic User Manual - Manual (Page 18)

Option Description
Advanced sampling Goes to the advanced sampling menu. If necessary, configure the options in the
Advanced Sampling menu.
Run program The creation of the basic sampling program finishes. The sampler prompts the user to
start or cancel the program.
Figure 12 Two samples per bottle (left) versus two bottles per sample (right)
Time based collection
1. Select or enter the values for each option.
Option Description
Pacing interval Collect samples at regular time intervals, in hours and minutes (0:01–999:00).
Take first sample The program starts immediately or after the first interval.
Variable volume Specify whether the sample volumes vary (flow based). If yes, refer to Use variable
volume on page 18. If no, refer to Do not use variable volume on page 19.
Use variable volume
Sample pacing is constant time variable volume (CTVV).
1. Select or enter the values for each option.
Option Description
Select unit Select the flow units to use.
Map 4 mA input Enter the flow rate that agrees with 4 mA input.
Map 20 mA input Enter the flow rate that agrees with 20 mA input.
Average flow rate Specify the average flow rate for the site (1–999,999). The units are specified by
the units selected above.
Time volume desired Specify the total volume to be collected during the sample program (10–
10,000 ml).
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