Hitachi CHROMASTER 5160 Instruction Manual page 349

4.2 Confirmation of Performance Specifications
(1) After turning on power supply, set wavelength at 250 nm
and conduct warm-up for about 1 hour.
WL
Press key.
WAVELENGTH (190 – 600) nm
250
Press [numerical] keys [2][5][0], and then the [ENT] key.
(2) Carry out auto zero.
A/Z
Press key.
TIME WL
0.0 250
(3) Start the chromato-integrator and record the baseline for 15
minutes.
(4) From the recorded chart, figure out noise value according to
ASTM1657-98 (JAIMAS 0005-2008).
＊
R=n
∑
Noise value =
R=l
(Excerpt from JAIMAS 0005-2008)
4 - 4
ABS PROG LAMP
0.0000 1 D2
X X
1 3
X
2
Y
3
Y
2
Y
1
15 minutes
Y /n
(X is given in steps of 30
R n
seconds.)
[I]
CENTER
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