GE Monitor UV-900 - C Reference Information: Technical Specifications; Operating Data and Performance; Flow Cell Specifications

Reference information C
Monitor UV-900 User Manual 18-1120-05 Edition AF 39
C Technical specifications
Operating data
Wavelength range 190–700 nm in steps of 1 nm,
3 wavelengths simultaneously
Bandwidth 4 nm
Wavelength accuracy ±2 nm
Wavelength reproducibility ±0.01 nm
Wavelength switch time < 500 ms (one cycle from 214 nm to
254 nm and back to 214 nm)
Linearity < 2% deviation up to 2 AU at 260 nm with
Uracil at pH 2
Noise (specified for 10 mm
flow cell)
1, 2
Single wavelength
short term (0.5–1 min)
long term (1–10 min)
Dual wavelengths
short term (0.5–1 min)
long term (1–10 min)
< 6x10
-5
AU at 230 nm
< 6x10
-5
AU at 230 nm
< 2x10
-4
AU at 230 and 254 nm
< 2x10
-4
AU at 230 and 254 nm
Drift
2)
< 2x10
-4
AU/h at 254 nm
Environment +4 to +40 °C
20–95% relative humidity
84–106 kPa (840-1060 mbar)
atmospheric pressure
1)
Measured with water at 1 ml/min, time constant 1 s.
2)
Typical values at room temperature after varm-up.
Flow cell
Max. flow rate 100 ml/min
Max. pressure 2 MPa (20 bar, 290 psi)
Backpressure Max. 0.5 bar at 2 ml/min with water at
25 °C
Liquid temperature range +4 to +40 °C
Optical path length
2 mm cell
10 mm cell
2 mm
10 mm
Cell volume
2 mm cell
10 mm cell
2 µl
8 µl
Degree of protection IP 21
Wetted materials PTFE (polytetrafluoroethylene)
PEEK (polyetheretherketone)
Titanium (palladium alloy)
Quartz (synthetic fused silica)
pH stability range 1–13, 1–14 (<1 days exposure)