Hitachi ChromasterUltra RS 6430 Instruction Manual page 55

(3) Measurement of Noise/Drift
For measuring noise and drift, refer to the instruction
manual for CDS (EZChrom or Empower).
Noise and drift need to be measured at wavelengths
250 nm.
 Specifications
 Noise 0.5  10
Conditions: Measuring conditions using standard
 Drift
a) 0.4  10
b) 0.4  10
whichever is greater.
Conditions: Measuring conditions using standard
5 - 3
-5
AU or less
flow cell:
poured methanol at 0.5 ml/min,
COARSE slit, bandwidth 4 nm,
smoothed chromatogram 250  10 nm,
reference 360 nm  50 nm, sampling
period 400 ms, response 2 s, ambient
temperature variation within 2 C (20 to
30C), and after 1 hr warm-up.
-3
AU/hr or less
-3
AU/hr/C or less
flow cell:
poured methanol at 0.5 ml/min,
COARSE slit, bandwidth 4 nm,
smoothed chromatogram 250  10 nm,
reference 360 nm  50 nm, sampling
period 1600 ms, response 2 s, and after
1 hr warm-up.
5.2