Instruction manual

9. Technical Information
9-40
RF-20A/20Axs
9.2 Specifications
∗
1: Indicates the reproducibility performance when the power is turned ON in the single wavelength mode and the wavelength is changed.
∗
2: Water raman peak measurement conditions: Ex 350 nm, RESPONSE = 1.5 sec
∗
3: Room temperature means the ambient temperature at the RF-20Axs.
Item RF-20A RF-20Axs
Light Source Xenon lamp
Xenon lamp
Low-pressure Hg (mercury) lamp (for
wavelength accuracy check)
Wavelength Range 0, 200 to 650 nm 0, 200 to 750 nm
Spectral Bandwidth 20 nm
Wavelength Accuracy ± 2 nm
Wavelength Reproducibility ± 0.2 nm
∗1
S/N
Water raman peak S/N of 1200 or
greater
∗2
Water raman peak S/N of 2000 or
greater
∗2
Cell Capacity 12 μL
Cell Maximum Withstand
Pressure
2 MPa {20 kgf/cm
2
}
Wetted Materials of Cell SUS316L, PTFE (fluorocarbon polymers), quartz
Cell Inlet, Outlet Tube Diameter SUS316L tubing 0.8 mm O.D. × 0.25 mm I.D.
Volume from the End of the Inlet
Tube to the Cell Center
15
μL45μL
Volume from the Cell Center to
the End of the Outlet Tube
16
μL21μL
Input Range for Cell
Temperature
− 4 to 40 °C, in steps of 1 °C
Temperature Control Range −
(Room temperature
∗3
−10 °C) to 40 °C
(Flow rate: less than 2 mL/min, Column
oven: less than 85 °C)
Simultaneous
Monitoring of 2
Wavelengths
Measured
Wavelengths
Any two wavelengths within the range of
200 to 650 nm
Any two wavelengths within the range of
200 to 750 nm
Sampling
Frequency
0.5 sec for one wavelength
Sensitivity Can be set at three levels: HIGH, MED, and LOW (× 1, × 32, × 1024)
Gain Can be set at three levels: × 1, × 4, × 16
Response
Time constant: 11 levels can be selected, equivalent to "no filter", 0.05, 0.1, 0.5, 1.0,
1.5, 2.0, 3.0, 6.0, 8.0, and 10.0 seconds.
Range
Can be set to 10 levels: Short, × 1, × 1/2, × 1/4, × 1/8, × 1/16, × 1/32, × 1/64,
× 1/128, and × 1/256