Select When The Program Stops; Configure Cascade Sampling (Optional) - Hach AS950 Operation Manual

Start the program on a trigger (optional)
To do upset sampling, configure the sampling program to start on a trigger.
1. Push MENU.
2. Go to Programming>Sample Programming>Program Start>On Trigger.
3. Select an option.
Option Description
Setpoint Sets the sampling program to start when one or all of the selected channel alarms occur.
External AUX Sets the sampling program to start when the external flow meter or a third-party device that is
connected to the AUX I/O port sends a signal to the sampler. Refer to the flow meter
documentation to configure the signal.
4. If Setpoint is selected, select and configure each option.
Option Description
Setpoint Selects the channel alarm(s) for the trigger. The user-configured channel alarms show. To
configure more channel alarms, select Add New Alarm and refer to
alarms
Start Trigger Sets the sampling program to start when one or all of the channel alarms occur. Options: All
Alarms or Any Alarm.
Delay Selects the sampling program to start when the start trigger occurs after a selected delay.
Refer to
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
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
None
After Samples
Date and Time
Time Duration

Configure cascade sampling (optional)

When one sampler is not sufficient to collect a large sample volume over a long time interval,
connect two samplers and configure them for cascade (series) sampling.
The sampling program on the second sampler starts when the sampling program on the first
(leading) sampler is complete (last sample is complete).
20 English
on page 12.
Table 11 on page 19 for the delay options.
Description
The sampling program operates continuously.
The sampling program stops after a set number of samples are collected.
The sampling program stops at a set date and time.
The sampling program stops after a number of hours (1 to 999 hours).
Table 11 on page 19 for the delay options.
Select and configure the