2 create a sampler program, 1 tips and techniques, Sampler operation 4.4.2 create a sampler program – Hach-Lange Sigma SD900 Portable User Manual
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Sampler operation
4.4.2 Create a sampler program
Create a sampler program to set up the sampler for automatic
sampling routines.
Procedure:
1. Select
PROGRAM SETUP
from the main menu.
2. Select
MODIFY ALL
. The first parameter, bottle quantity, will be
shown.
3. Select the number of bottles in the sampler. The next
parameter, bottle volume, will be shown.
4. Enter the volume of the individual bottle(s). Use the
LEFT AND
RIGHT
ARROW
keys to move the cursor left or right. Use the
UP
AND DOWN
ARROW
keys to change the value. Change the
units if necessary (gal or mL) with the arrow keys.
5. Continue to select or enter values for each parameter until
complete. Refer to
available options for a basic sample program.
4.4.2.1 Tips and techniques
Refer to
and
for help with sample programming.
Table 4 Tips and techniques for the basic sampling program
Parameter
Tips and techniques
Bottle quantity
When 1 bottle is selected, the full bottle shut-off device is enabled and the distributor
is disabled. When more than 1 bottle is selected, the distributor diagnostic
is enabled.
Intake tubing
The sampler uses the intake tubing information to determine sample volume. If the
intake tubing information is not accurate, the sample volume will not be accurate.
Program delay
If the program delay is set to counts and sample pacing is set to time, the program
delay will be disabled.
Sample pacing—flow
Each time a sample is collected based on flow counts, the override timer is reset.
Sample distribution
If the bottle quantity is 1, the sample distribution option will not be available.
See
for a description of samples per bottle vs. bottles per sample.
Bottles per sample—use bottles per sample when the sample volume is larger than
one bottle can hold.
Samples per bottle—the distributor arm will not advance to the next bottle until the
specified number of samples has been delivered to the current bottle.
Liquid sensor
If the liquid sensor is disabled, the sample volume must be calibrated manually.
Sample volume
The sample volume must be entered as mL (1 gal.= 3785.4 mL).
Make sure that
the sample volume does not exceed the bottle volume. Sample volumes are
rounded to the nearest 10 mL.