Shimadzu SPD-20A - Page 38

228-90095F
3
8
 Upper limit of the light intensity when the identification no. is “228-42031B”
Cell SE RE
When using a standard cell 2200 mV 2200 mV
When using a semi-micro
cell
1400 mV 2200 mV
If the value is over the upper
limit, the operational
amplifier needs to be
modified.
When using a micro cell Modification is unnecessary.
 Upper limit of the light intensity when the identification no. is “228-42031C”
or“228-53021”
Cell SE RE
When using a standard cell 3100 mV 3100 mV
When using a semi-micro
cell
2000 mV 3100 mV
If the value is over the upper
limit, the operational
amplifier needs to be
modified.
When using a micro cell Modification is unnecessary.
7.1.3.2 Procedure to check the light intensity
(1) Attach a new D2 lamp and light it up.
(2) Fill the flow cell with deionized water
(3) Set the wavelength to 220 nm.
(4) Check light intensities SE/RE. If the value is over the standard value, lower
the gain of the pre-amplifier (PB-1 ASSY) by the procedure described below.
Modification is unnecessary if the light intensity is under the upper limit.