Endress+Hauser SpectraSensors SS2100i-1, Обзорное руководство

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SS2100i-1 and SS2100i-2 Analyzer
3
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8 4900002288 rev. B 1-13-21
4. Confirm that the sample supply pressure under flowing conditions is
set to the approximate specified pressure. Refer to the analyzer
system drawings.
To start up the analyzer on process sample
1. Ensure the low pressure flare or atmospheric vent header shut-off
valve is opened for the sample flow effluent from the SCS.
2. Open the cell supply and cell return shut-off valves. Refer to the
analyzer system drawings.
3. If required, adjust the sample flow meter control valve(s) to the
specified flow for the measurement cell.
4. Adjust the sample flow meter control valve(s) to the specified flow
for the measurement cell.
Make sure that no liquid, solids, etc. are flowing through the
bypass by viewing the flow meter. If substances are present, shut
down the system and purge the sample transport lines. Refer
“Powering Down the Analyzer” on page 3-13.
Although the exact supply pressure setpoint is not critical, the
pressure at the sample system should be within 5 PSIG of the
specified supply pressure setpoint. There may be a difference
between the pressure readings at the sample tap and inside the
SCS due to the pressure drop in the sample transport line under
flowing conditions. If the pressure at the SCS under flowing
conditions is not sufficiently close to the specified setpoint, it will
be necessary to readjust the pressure regulator setpoint at the
field pressure reducing station to provide the required supply
pressure with the specified sample bypass flow.
This procedure can be completed during the system warm-up
process. Refer to the analyzer system drawings for all
recommended settings.
The adjustment setpoints of the analyzer flow meters and
pressure regulators will be interactive and may require multiple
adjustments until the final setpoints are obtained.
The analyzer system has been designed for the sample flow rate
specified. A lower than specified sample flow rate may adversely
affect analyzer performance. Contact Service if you are unable to
attain the specified sample flow rate. Refer to “Service Contact”
on page B-5.