Configure Synchronized Sampling (Optional); Calibration; Volume Calibration - Hach AS950 Operation Manual

Note: When there are two sampling programs on the first sampler, the sampling program on the second sampler
starts when both sampling programs are complete.
Item to collect: Cascade/Synchronized sampling cable (9505100)
1. Connect the cascade/synchronized sampling cable to the AUX port on each sampler.
2. At the first (leading) sampler:
a. Push MENU.
b. Select Hardware Setup>AUX and I/O Port.
c. Make sure that Type is set to AUX.
d. Select Mode>Program Complete.
3. At the second sampler:
a. Push MENU.
b. Select Hardware Setup>AUX and I/O Port.
c. Make sure that Type is set to AUX.
d. Push MENU again.
e. Select Programming>Sample Programming>Program Start.
f. Select On Trigger, then push Next.
g. Select Trigger Type>External AUX.

Configure synchronized sampling (optional)

When one sampler is not sufficient to collect a large sample volume, when split sampling is
necessary or when mixed bottle sets (glass and poly) are necessary, connect two samplers and
configure them for synchronized (parallel) sampling.
The samplers collect samples at the same time. Every time the first (leading) sampler collects a
sample, the first sampler sends a signal the second sampler to collect a sample.
Item to collect: Cascade/Synchronized sampling cable (9505100)
1. Connect the cascade/synchronized sampling cable to the AUX port on each sampler.
2. At the first (leading) sampler:
a. Push MENU.
b. Select Hardware Setup>AUX and I/O Port.
c. Make sure that Type is set to AUX.
d. Select Mode>Sample Event.
3. At the second sampler:
a. Push MENU.
b. Select Hardware Setup>AUX and I/O Port.
c. Make sure that Type is set to AUX.
d. Push MENU again.
e. Select Programming>Sample Programming>Pacing.
f. Select Flow Weighted, then push Next.
g. Select Flow Source>AUX-Pulse.
h. Select Target, then enter 1 count.
i. Make sure that the Take First option shows " Immediately".

Calibration

Volume calibration

Calibrate the sample volume.
Note: Temporarily stop the sampling program before calibration. Push RUN/HALT, then select Halt Program.
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