Thermo Scientific Dionex, Руководство оператора

Страница: 50 / 228

Dionex Integral Systems Operator’s Manual
38
Doc. 065250-06 03/2020
3.6.3 Flow Paths and Valve Positions Used During Analyses
This section describes the flow paths and valve positions used to analyze
calibration standards, check standards, and sample streams.
Flow Paths and Valve Positions for Analyzing Calibration Standards
Analyzing a calibration standard consists of three main steps:
•
Step 1: Filling the loop on the metering valve with stock standard (see
Figure 3-17 ).
•
Step 2: Sending the loop contents and deionized water (the diluent) to
the dilution vessel (see
Figure 3-18 ).
•
Step 3: Purging the diluted standard from the dilution vessel and
loading it to the injection valve (see
Figure 3-19 ).
Figure 3-17. Analyzing Calibration Standards
Step 1: Filling the Metering Valve Loop with Standard
Standard
ST
SV1
NC
C
NO
Metering Valve
1
2
3
5
7
9
4
6
8
10
To waste
Plug
To waste
Plug
NC
C
NO
DI water in
Plug
To dilution vessel
DI
SV2
Dilution Pump
Valve Positions for Standard Analyses:
Filling the ME Valve Standard Loop
ST/SV1 = On
DI/SV2 = Off
CS/SV3 = Off
SM/SV4 = Off
SS/SV5 = Off
DV/SV6 = Off
GAS/SV8 = Off
ME = 1–2
Check
Valve