User manual

20 Operation and Maintenance Manual
Specifications
Technical Information — 355 SCD
Technical Information — 255 NCD
Sensitivity
*
* Burner temperature 800 °C, 80 SCCM air, and 60 SCCM hyrdrogen, test compound dimethyl sulfide in toluene.
Typical < 0.5 pg S/second (signal to noise 3.3:1)
Typical Selectivity g S/g C > 2 x 10
7
Linearity >10
4
Precision and Stability
†
† Based on thiopene in benzene at 1 ppm mass sulfur, 1 µL injection split 1:10, 30 m, 0.32 mm ID, 1 µm thick CP
wax (n=10 for 2.5 hours; n=42 for 72 hours).
Subject to change without notice.
<2% RSD 2 hours
<5% RSD 72 hours
Ozone flow through the Post Ozone Restrictor 20-30 mL/min at 3-6 psig
Typical reaction cell pressure 4 - 8 Torr RV5 Oil Sealed Pump
6 - 12 Torr Dry Piston Pump
Typical Burner Pressure 250-400 Torr operating
Typical Burner Temperature 800 °C
Typical Air Flow Rate 65 SCCM recommended
3-10 SCCM recommended with FID adapter
Typical Hydrogen Flow Rate 40 SCCM recommended
Signal Output Ranges 0-1V, 0-10V
Typical time to reach 800 °C from room
temperature
10 min typical(120 VAC, 60 Hz)
Typical safety shroud outside temperature <65 °C at 800 °C Burner temperature typical
Recorder output 0-1 V or 0-10 V
Sensitivity <3 pg N/second (signal to noise 3:1) in both N
and nitrosamine modes
Selectivity g N/g C > 2 to 10
7
in N mode (selectivity in
nitrosamine mode is matrix-dependent)
Linearity >10
4