6100CR Refrigerated Sampler - Isco

6100CR Refrigerated Sampler
Section 1 Introduction
sampler previously detected a fault in the tower, it will test the
tower before it rotates the rack. The same will occur if the
sampler previously detected a fault in the valve actuator, and the
valve actuator must be returned to the normal position if it is
not. Also, if the needle is not fully raised, the sampler will raise it
before rotating the rack. The sampler raises the needle and
returns the valve actuator to the normal position so they will not
interfere with the rotation of the rack. Rack Reset will not have
an effect when the sampler is in the running state.
1.4.11 Manual Purge Pressing the Manual Purge key when the sampler is in the
standby state will bring up the following screen:
MANUAL PURGE
STRAINER PRE-COOLER
Selecting strainer will cause the sampler to open the flow valve
so liquid will flow from the sample source through the strainer
and valve. The liquid will be diverted by the valve and will not go
through the sample pre-cooler or the actual bottle-filling mechanism,
but will flow out through the bypass drain line. The flow
can be stopped by pressing the ON/OFF key, or the Clear/Exit
key. The Purge will also be stopped after a fifteen minute
time-out. This function is useful for checking out the operation of
the system, as well as purging air from the system after the
strainer housing has been opened for cleaning.
Similarly, selecting PRE-COOLER will cause the sampler to open
the valve so the liquid will flow through the strainer, pre-cooler
and the needle mechanism that fills the sample collection bottles.
None will flow through the bypass. It exits the system through
the sample overflow drain line. This selection does not cause the
sampler to open a sample vial or put the sampling needle mechanism
into a sample vial.
Therefore, no liquid is introduced into a vial and no vials are contaminated
by this operation. This operation is useful to verify
that the system is functional, and that the valves open properly
so the liquid can flow through the system. The operation is also
useful to purge air from the pre-cooler upon initial installation
and if it is drained during subsequent maintenance operations.
The Manual Purge selections can also be useful if the sampler is
not to be used for some period of time and it is desired to flush
the system with clean water. If the inlet line is disconnected from
the sample source and connected to clean water, these selections
will make the sampler open the valves so clean water can flow
through the system.
1.4.12 Manual Sample This key allows you to take a sample any time the 6100CR is in
Standby, but it will not do manual sample within a running
program. When you press this key, the unit will place a sample in
the next bottle.
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