Thermo Scientific Dionex, Руководство оператора

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3 • SP Sample Preparer Description
Doc. 065250-06 03/2020
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SP2 Component Functions
Component Description Valve Position and/or Function
Standard Valve
(ST/SV1) 3-way solenoid valve On: Directs stock standard to metering valve
(for calibration standard preparation)
Off: Directs sample to metering valve (for
sample dilution)
Diluent Valve
(DI/SV2) 3-way solenoid valve On: Directs diluent to dilution pump
Off: Stops flow of diluent
Check Standard
Valve (CS/SV3) 3-way solenoid valve On: Directs check standard to sample valve
Off: Directs sample to sample valve
Sample Valve
(SM/SV4) 3-way solenoid valve On: Directs sample or check standard to ST
valve
Off: Directs sample or check standard to SS
valve
Sample/Standard
Valve (SS/SV5) 3-way solenoid valve On: Directs diluted sample or calibration
standard to loading pump
Off: Directs undiluted sample or check
standard to loading pump
Dilution Vessel
Valve (DV/SV6) 3-way solenoid valve On: Directs diluted sample/standard to SS
valve
Off: Purges dilution vessel to waste
Metering (ME)
Valve 10-port, 2-position
valve Position 10–1: Delivers diluent and loop
contents to dilution vessel
Position 1–2: Loads sample or standard into
loop for delivery to dilution vessel
Dilution Vessel Pressurized container Used to prepare calibration standards and to
dilute samples
Gas Valve
(SV8)
*
* The regulator for the gas valve is on the SP panel. The valve is behind the panel.
3-way solenoid valve On: Pressurizes dilution vessel
Off: Vents dilution vessel
Dilution Pump Stepper motor pump Delivers diluent to dilution vessel
Loading Pump
(SV9) Peristaltic pump Loads samples or standards to sample loop on
injection valve
Regulator/Valve
Manifold 3-way gas valve
manifold Regulates flow of high purity gas (typically
helium) to dilution vessel
Table 3-3. SP2 Components for Dilution of Direct Injection