Liquistation CSF48
10 Endress+Hauser
Mode of operation with a
sampling assembly
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Sampling steps with a sampling assembly
Sampling takes place in three steps:
1. Standby position
The plunger is in standby position in the assembly. The sample chamber is ventilated from the
outside.
2. Intake
The plunger is driven by compressed air into the sample flow. An adjustable hold time allows for
a representative blending of the sample in the sample chamber.
3. Drain
The plunger is in standby position in the assembly. The sample chamber is ventilated from the
outside. The sample is drained into the sample bottle(s).
Sampling assembly with optional rinsing valve
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Sampling steps with a sampling assembly
ARinsing valve
BCompressed air
CAtmosphere
The rinsing valve provides you with these additional functions:
• Draining under pressure - valve is connected to compressed air
- In the sampling setup menu, the function "Dosing under pressure" can be selected. This allows the
sample to flow under pressure into the sample bottle(s).
• Cleaning with compressed air or water
- In the sampling setup menu, the function "Cleaning" with air or water can be selected. Once you
select "before", "after" or "before and after every sampling", you can choose a cleaning position.
• In addition, you can select sample rinsing cycles in the "Cleaning before and after sampling" menu.
The system can be pre-rinsed up to 10 times with the current sample.
Automatic sampling using the sampling assembly is designed for aqueous samples. For highly
viscous samples, e.g. sludge >1 %, sampling can only be done directly into a container.
The air or water pressure must be set for the application in question using pressure reducing valves.
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