Manual Operation - Hach SD900 Manuel D'utilisation De Base

Option
Time
Take first sample
Use 4–20 mA input for the flow source
1. Select or enter the values for each option.
Option
Select unit
Map 4 mA input
Map 20 mA input
Take sample every Enter the total flow after which the sample has to be drawn.
Override time
Time
Sample volume
Restore the default settings
The restore option sets all of the program parameters to the default settings.
1. Push MENU.
2. Go to PROGRAM SETUP>RESTORE.
3. Select YES.
Start or stop a program
Use the RUN/HALT PROGRAM key to start or stop a program. Up to 12 user-defined start/stop
times/dates can be set. A program must be stopped before the program or system setup can be
changed.
1. Push RUN/HALT PROGRAM.
2. Select one of the options.
Option Description
Start Starts the currently loaded program. The status changes to RUNNING.
Halt Stops the program temporarily. The status changes to HALTED.
Resume The program resumes from the point at which it was halted. The status changes to
RUNNING.
Start over The program starts from the beginning. The status changes to RUNNING.
End program Stops the currently running program. The status changes to COMPLETE.

Manual operation

Use manual operation to collect a grab sample, move the distributor arm or operate the pump. For
additional information, refer to the expanded version of this manual.
Description
The maximum time between samples (0:01–999:00). The timer starts again after each
sample is collected.
The program starts immediately or after the first time interval.
Description
Selects the flow units to use.
Enter the flow rate that would agree with the 4 mA input.
Enter the flow rate that would agree with the 20 mA input.
Select enable to push a sample to be collected if the flow volume is unusually low.
The maximum time between samples (0:01–999:00). The timer starts again after each
sample is collected.
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). This option is skipped if variable
volume is selected.
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