Thermo Finnigan SpectraSYSTEM UV6000LP, Справочное руководство

Страница: 34 / 137

2-6 Thermo Electron January 2004
COMPUTER
CONNECTION
Connect your computer to the detector’s RS232 connector using the
RS232 serial cable (P/N A3598 - 030) and the 9-pin adapter
(P/N A3538-010).
ANALOG OUTPUT
CONNECTIONS
The analog signal cables are connected to the appropriate analog
OUTPUT terminals located on the detector rear panel; ch1 and ch2
+, –, and ground ( ) terminals. The cables provided in the installation
kit have 1/4-inch of bare wire at each end.
NOTE: Do not connect the detector’s ground terminals to any earth ground
on your data system. This would lead to an increased noise level and a
subsequent decrease in sensitivity.
The data system should have a floating ground input. Typically, the
positive and negative data system inputs are connected to the + and –
terminals of the detector respectively. The ch1 and ch2 – output
terminals of the detector are isolated from chassis ground and the
ground ( ) terminals are connected to chassis ground.
ANALOG OUTPUT
SETTINGS
The analog outputs are controlled by the wavelength, bandwidth, rise
time, and zero functions of the detector. These outputs can also be set
for 10 mV, 100 mV, or 1000 mV per AU using the switches located
on the rear panel and shown in Figure 2.3.