6700 Portable Sampler User Manual - Isco

Turning on Master/Slave
Sampling
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Enter the Hardware setup.
Step through the rain gauge
and YSI 600 setup screens
until you see:
MASTER/SLAVE?
YES NO
Select YES to put the sampler
in the master/slave mode.
When you no longer need
master/slave sampling, return
to this screen to turn the
master/slave feature off.
PressSTOPtwicetoreturnto
the main menu.
Bottle Full Detect
BOTTLE FULL DETECT?
YES NO
6700 SAMPLERS
MASTER/SLAVE SAMPLING
Master/slave sampling lets you operate two samplers as a master/slave
pair. The master sampler disables the slave until the
master completes its sampling program. The samplers then
reverse roles with the second sampler becoming the master.
Setting Up Master/Slave Sampling
1. Turn on master/slave sampling in both samplers.
2. Install the samplers.
3. Connect the samplers with the Master/Slave Interconnect
Cable by attaching the cable to the sampler’s flow-meter connectors.
If your installation includes a flow meter or flow logger,
use the Master/Slave-to-Flow-Meter Cable instead.
4. Decide which sampler is to be the master sampler; the master
sampler should be the sampler with the program you want to
run first.
5. Turn the master sampler on and run its sampling program by
selecting RUN. After at least 5 seconds, turn the slave sampler
on and select RUN from its main menu.
How Does It Work?
The master sampler sends a disable signal out its flow meter connector.
The slave sampler, receiving the signal is held disabled
until the master sampler completes its program.
When using a flow meter or flow logger a Master/Slave-to-Flow-
Meter Cable must be used. This cable is constructed so that the
pacing instrument receives only the event marks. Therefore, a
connected flow meter will not receive a bottle number signal nor
will it be able to control the sampler inhibit.
BOTTLE FULL DETECT
The sampler can detect a full bottle condition when collecting
samples in a single bottle (composite sampling). When the sampler
detects a full bottle, it stops the sampling routine. A bottle
full condition will also stop a sampling routine that is set to RUN
CONTINUOUSLY.
The Bottle Full Detect screen allows you to enable or disable this
feature. Selecting “YES” enables the sampler to detect a full bottle
and stop the sampling routine. Selecting “NO” disables this
feature. The Bottle Full Detect setting is part of the sampling program.
Because it is a program setting, full bottle detection can be
enabled or disabled for each of the four extended programs. If the
Bottle Full Detect setting is critical to your sampling program,
always check this Hardware setting after you select a different
Extended Program.
This feature relies on a post-purge after each sample. When using
the Bottle Full Detect, ensure that postsample purges greater than
100 (see page 97) are used.
Bottle Full Detect is always disabled in the Normal Programming
mode.
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