Confirmation Of Performance Specifications; Items Of Performance Specification Check - Hitachi CHROMASTER 5160 Instruction Manual

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
lamp at 486 and 656 nm, and the bright line of Hg lamp at
254 nm.
Specification:
(3) Measurement of Baseline
• Conditions........................ Room temperature constant,
• Measuring wavelength..... 250 nm
• Specifications .................. Noise : 0.5 × 10
4 - 2
Wavelength accuracy of each bright line
shall be within ±1 nm.
air in flow cell, time constant
2.0 s,
Noise in data sampling period
400 ms
Drift in data sampling period
1600 ms
Drift : 1.0 × 10
2
-5
AU or less
-4
AU/h or
less
(when measured at
least 1 hour after
power-on)