Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual - Manual (Page 48)

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Sampler operation
4.4.1 Sampler program overview
Table 3 outlines the menu for creating a basic sampling program.
Table 3 Basic program setup
Menu option Description
Bottles Enter bottle information.
Bottle quantity Select the number of bottles in the sampler (1, 2, 4, 8 or 24).
Bottle volume Enter the volume capacity of each bottle in milliliters or gallons (0.5–99.8 gal or 50–65000 mL).
Intake tubing Enter intake tubing information.
Tubing length
Enter the length of the intake tube from the strainer to the liquid sensor (3–99 ft or
100–3000 cm). An accurate length is necessary to obtain accurate sample volumes.
Intake tube type Select the size and type of tubing (¼ in. vinyl, 3 / 8 in. vinyl or 3 / 8 in. teflon)
Program delay
Delay starting the sampling program until specified time and day or until specified number of
counts is reached.
Enable/disable Select enable to use a program delay or disable to omit it.
Date and time If enabled, enter the date and time when the program will start (24 hour format).
Counts
If enabled, enter the counts from the flow meter when the program will start (1–9999 counts). If
counts is selected and the sample pacing is later set to time, the program delay will be disabled.
Sample pacing/collection Specify whether to collect samples at regular time intervals or regular flow volume.
Time based Collect samples at regular time intervals.
Pacing interval Enter the time interval, in hours and minutes (0:01–999:00).
Take first sample Select whether the program will start immediately or after the first time interval has passed.
Flow based Collect samples at a specified flow volume (requires external flow meter).
Take sample every Enter the flow interval that must expire between sample cycles, in counts (1–9999 counts).
Override time Select enable to force a sample to be collected if the flow volume is unusually low.
Time
If enabled, enter the maximum time between samples (0:01–999:00). Timer is reset each time a
sample is collected based on flow counts.
Take first sample Select whether the program will start immediately or after the first flow interval has passed.
Sample distribution For multiple bottle sampling, specify how the samples are delivered to the bottles.
Deliver samples to all Select whether each sample will be delivered to all bottles or not.
Yes Each sample will be delivered to all bottles.
End after last Program will stop after the last sample has been collected. Enter number of samples (1–999).
Continuous Sampler will continue collecting samples until stopped manually.
No Samples will be delivered to a subset of bottles (see Figure 27 on page 48 ).
Samples/bottle Enter the number of samples to be collected in each bottle (1–999).
Bottles/sample Enter the number of bottles that will contain the same sample.
Liquid sensor Enable/disabled. If disabled, the sample volume must be calibrated by time.
Sample volume
Enter the volume to be collected per sample. If bottles/sample mode is selected, each bottle
receives a full sample volume (100–10,000 mL).
Intake rinses Enter the number of times the intake tube will be rinsed before each sample is collected (0–3).
Sample retries Enter the number of sample retries to perform when a failure occurs (0–3).
Site ID
Enter a name for the sampling location (enter up to 12 characters). The site ID is used as the
preset name if the program is saved.
Advanced sampling Access the advanced sampling menu.
Done Finished creating basic sampling program. Prompts user to start or cancel the program.