Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual - Manual (Page 59)

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Sampler operation
4.8.2 Volume calibration based on time
When the liquid sensor is disabled, the main sample volume, the
first flush storm volume (if storm water is enabled), and the rinse (if
rinses are > 1) must be calibrated manually.
The sample volume is calibrated for the volume specified in the
current program. If the sample volume is changed in the program,
the sample volume must be recalibrated for the new volume.
Procedure:
1. Make sure the liquid sensor is disabled by selecting PROGRAM
SETUP > MODIFY SELECTED > LIQUID SENSOR > DISABLE .
2. Press VOLUME CALIBRATION . Select one of the displayed
volumes to calibrate if more than one is listed.
3. If calibrating a sample volume, remove the outlet pump tube
from the fitting on the sampler and place the tube into a
graduated cylinder. Place the intake tube into the sample
source or tap water.
4. Select START . The pump will purge the intake tube and then
begin to collect a sample.
5. Stop the pump at the selected volume or rinse location:
• Sample volume: observe the volume in the graduated
cylinder and press the
STOP key when the volume
specified in the main program is collected.
• Rinse: observe the liquid as it travels up the intake tube
and press the
STOP key when the liquid reaches the liquid
detector.
• Storm volume: observe the volume in the graduated
cylinder and press the
STOP key when the volume
specified in the stormwater program is collected.
6. If the pump was stopped at the correct volume, select DONE . To
repeat the calibration select REPEAT .
7. Select another volume to calibrate or select DONE .
Note: All volumes must be calibrated before exiting the volume
calibration menu.
8. When finished, connect the outlet pump tube to the tube fitting
on the sampler.
9. Select START to start the sampling program or CANCEL to exit.