4.2 Confirmation of Performance Specifications
4.2 Confirmation of Performance Specifications
4.2.1 Items of Performance Specification Check
(1) Measurement of Light Source Lamp Energy (See 4.4.1)
•
Measuring wavelength: 250 nm
•
Reference at the time of installation
Energy indication of 150,000 or more at wavelength
250 nm
The indicated energy value has a slight difference among
the light source lamps due to their characteristics.
(2) Measurement of Wavelength Accuracy (See 4.4.1)
Check wavelength accuracy using the bright lines of D
2
lamp at 486 and 656 nm, and the bright line of Hg lamp at
254 nm.
Specification:
Wavelength accuracy of each bright line
shall be within
±
1 nm.
(3) Measurement of Baseline
•
Conditions........................ Room temperature constant,
air in flow cell, time constant
2.0 s,
Noise in data sampling period
400 ms
Drift in data sampling period
1600 ms
•
Measuring wavelength..... 250 nm
•
Specifications .................. Noise
: 0.5
×
10
-5
AU or less
Drift : 1.0
×
10
-4
AU/h or
less
(when measured at
least 1 hour after
power-on)
4 - 2
Summary of Contents for CHROMASTER 5160
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