Gain Control Settings - Thermo Scientific SGD-O User Manual

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

Gain Control Settings

7-3