Thermo Scientific SGD-O, User Manual

Page: 33 / 73

Adjusting the Gain Settings
Gain Control Settings
Thermo Fisher Scientific SGD-O User Guide
7-3
Table 7–1.
FSU setup to obtain required voltage reading
Pipe Size Source Size C13
(Default 330 pF) Gain Setting
(Default 1X)
2” HP 100 mCi 330 or 470 pF 1X or 2X
2” HP 145 mCi 330 or 470 pF 1X
2” HP 200 mCi 330, 470, or 680 pF 1X
3” HP 200 mCi 330 pF 1X
4” HP LP 200 mCi 330 or 470 pF 1X or 2X
6” LP 200 mCi 330 or 470 pF 2X
8” LP 200 mCi 220 or 330 pF 2X
10” LP 200 mCi 220, 330, or 470 pF 2X or 3X
Figure 7–2 shows how the jumpers and resistors work together to control
the gain of the AR1 op-amp.
Figure 7–2. Gain control of the AR1 op-amp
Gain Control
Settings