Hach SD900, Основное руководство пользователя

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Option Description
Sample volume The volume of each sample in mL (1 gal = 3785.4 mL). If bottles/sample mode is
used, each bottle receives a full sample volume (10–10,000 mL). Make sure that the
sample volume does not exceed the bottle volume. Sample volumes are rounded to
the nearest 10 mL.
Intake rinses The number of intake tube rinses before a sample is collected (0–3).
Sample retries The number of sampling tries after a sampling failure occurs (0–3).
Site ID The name for the sampling location (up to 12 characters). The site ID is used as the
preset name if the program is saved.
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.
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 19. If no, refer to Do not use variable volume on page 20.
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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