Hach AS950 AWRS, Operation Manual

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Option Description
Stormwater Dual sampling program for a stormwater application. The bottles in the sampler are
divided between the two sampling programs. For example, one sampling program has a
fixed time interval between samples. The other sampling program has a fixed flow
interval between samples.
Setpoint Sampling One sampling program for a setpoint (upset) application.
Enter the bottle and tubing information
Enter the number of bottles in the sampler, the bottle size and the intake tubing size.
1. Push MENU .
2. Go to Programming>Sample Programming.
3. Select an option.
Option Description
Total Bottles Selects the number of bottles in the sampler.
Bottles per
Program
3
Selects the number of bottles used by each sampling program. The bottles in the sampler are
divided between the two sampling programs.
Bottle
Volume Enters the volume capacity of each bottle. To change the units, select the units and push the
UP or DOWN arrow key.
Tubing Enters the length and diameter of the intake tubing. Length —Enters the length of the intake
tubing from the strainer to the liquid detector. Diameter —Selects the diameter of the intake
tubing 6.33 mm (¼ in.) or 9.5 mm (
3
/
8
in.).
Note: An accurate length is necessary to get an accurate sample volume.
Select the sample pacing
Select when a sample is collected. For example, set the sampling program to collect a sample at a
15-minute interval or a 100-liter flow interval.
1. Push MENU .
2. Go to Programming>Sample Programming>Pacing.
3. Select an option.
Option Description
Time
Weighted Collects a sample at a set time interval, such as every 15 minutes. Select this option for time-
weighted sampling.
Time Weighted —Sets The time interval between samples (1 minute to
999 hours). Take First —Sets the first sample to be collected immediately or collected after the
first time interval.
Flow
Weighted Collects a sample at a set flow interval, such as every 100 liters (or 100 gallons). Select this
option for flow-weighted sampling. An external flow meter or an optional flow sensor is
necessary. Refer to the sampler documentation to connect a flow meter or flow sensor.
Flow Source —Selects the source of the flow measurement signal: AUX I/O port (e.g, AUX-mA),
sensor port (e.g., Flow 1) or the optional IO9000 module (e.g., IO 1). A flow measurement
supplied through a sensor port or the IO9000 module is only available for selection if the flow
measurement is recorded to the data log. Refer to
Configure data logging on page 11. Override
—When enabled, collects a sample when the specified volume has not been measured within
the selected maximum time between samples. Enter the maximum time between samples.
When a flow-based sample is collected, the override timer is set to zero.
Target —Selects the
flow volume between samples (counts or analog input signal). Take First —Sets the first sample
to be collected immediately or collected after the first flow interval.
3
Available only when Custom Dual or Stormwater is selected. Refer to Select the type of
program on page 13.
14 English