Thermo Scientific Dionex, Operator'S Manual

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3 • SP Sample Preparer Description
Doc. 065250-06 03/2020
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SP1 Component Functions
Component Description Function
Standard Valve
(ST/SV1) 3-way solenoid valve On: Directs stock standard to metering valve
(for calibration standard preparation)
Off: Stops flow of stock standard
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 SS
valve and loading pump for analysis
Off: Directs sample or check standard to waste
Sample/Standard
Valve (SS/SV5) 3-way solenoid valve On: Directs calibration standard to loading
pump
Off: Directs sample to loading pump
Dilution Vessel
Valve (DV/SV6) 3-way solenoid valve On: Directs calibration standard to SS valve
Off: Purges dilution vessel to waste
Metering Valve
(ME) 10-port, 2-position
valve Position 10–1: Delivers diluent and loop
contents to dilution vessel
Position 1–2: Loads stock standard into loop
for delivery to dilution vessel
Dilution Vessel Pressurized container Used to prepare calibration standards
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 Stepper motor pump Loads samples or standards to concentrator
column or 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 3-2. SP1 Components for Concentration or Direct Injection