ISCO 6700SR, Instruction Manual, Page: 109 / 190

6700SR Refrigerated Sampler
91
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 con-
nectors. If your installation includes a flow meter or flow log-
ger, use the Master/Slave-to-Flow-Meter Cable instead.
4. Decide which sampler is to be the master sampler; the mas-
tersampler 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 con-
nector. The slave sampler, receiving the signal is held disabled un-
til 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 in-
strument receives only the event marks. However, when using this
configuration, a connected flow meter will not receive a bottle number
signal, and it cannot enable or disable the samplers.
Bottle Full Detect
The sampler can detect a full bottle condition when collecting sam-
ples in a single bottle (composite sampling). When the sampler de-
tects a full bottle, it stops the sampling routine. A bottle full
condition will also stop a sampling routine that is set to RUN CON-
TINUOUSLY.
The Bottle Full Detect screen allows you to enable or disable this fea-
ture. 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 set-
ting is critical to your sampling program, always check this Hard-
ware 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 93) are used.
Bottle Full Detect is always disabled in the Normal Programming
mode.
Bottle Full Detect
48
BOTTLE FULL DETECT?
YES NO