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Hach AS950 Basic Operations

Hach AS950
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Option Description
Delay Selects the sampling program to start when the start trigger occurs after a selected delay.
Refer to Table 7 on page 15 for the delay options.
Control Sets the sampling program to start (or start and stop) when the trigger occurs. Options: Start
& Stop or Start Only.
5. If External AUX is selected, select and configure each option.
Option Description
Delay Selects the sampling program to start when the signal is sent by the flow meter or a third-party
device after a selected delay. Refer to Table 7 on page 15 for the delay options.
Control Sets the sampling program to start (or start and stop) when the signal is sent by the flow meter or
third-party device. Options: Start & Stop or Start Only.
Select when the program stops
Select when the sampling program completes and sample collection stops (e.g., after a quantity of
samples are collected or after a time interval).
1. Push MENU.
2. Go to Programming>Sample Programming>Program End.
3. Select an option.
Option Description
None The sampling program operates continuously.
After Samples The sampling program stops after a set number of samples are collected.
Date and Time The sampling program stops at a set date and time.
Time Duration The sampling program stops after a number of hours (1 to 999 hours).
Calibration
Volume calibration
Calibrate the sample volume.
Note: Temporarily stop the sampling program before calibration. Push RUN/HALT, then select Halt Program.
Calibrate the sample volume—liquid detector enabled
Calibrate the sample volume with the liquid detector enabled to adjust sample volumes slightly.
1. Push MENU.
2. Select Hardware Setup>Liquid Detect>Status. Make sure that the liquid detector is enabled.
3. Put the intake tubing into the sample water or tap water.
Note: Use the sample water for best accuracy.
4. For the AWRS sampler, put a graduated cylinder under the distributor outlet or composite tube
support inside the AWRS cabinet.
5. For the refrigerated sampler, put a graduated cylinder under the distributor outlet or composite
tube support in the refrigerated cabinet.
6. For the portable sampler, put the tubing from the outlet side of the pump into a graduated
cylinder.
7. Push CALIBRATION, then select Volume>Sample Volume.
8. Push Next.
9. Enter the volume of sample to collect.
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Hach AS950 Specifications

General IconGeneral
Sample FrequencyProgrammable
TypePortable
Sampling MethodVacuum Pump
Temperature ControlRefrigerated
Bottle Configuration24 x 1L bottles
Power Supply12V DC
CommunicationRS-232
Sampler TypePortable or Stationary
Vertical Lift8.2 m
Enclosure RatingIP67
Number of SamplesUp to 999
Storage Capacity24 samples
Bottle Options1L

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