Thermo Scientific SGD-O, User Manual

Page: 35 / 73

Adjusting the Gain Settings
Gain Control Settings
Thermo Fisher Scientific SGD-O User Guide
7-5
Times Setting Comment
X4 W1 W3 jumper This parallels R5 and R37 and adds R36 to the
circuit, changing the current to the op-amp.
X5 W2 8.25 kohm
resistor used as W3 jumper,
instead of the wire
Using the resistor instead of the wire provides
more versatility to adjusting the current in the
feedback loop to the op-amp.
X6 W2 8.25 kohm
resistor used as W3 jumper
+ R36 changed to 4.12
kohm
Using the resistor instead of the wire provides
more versatility to adjusting the current in the
feedback loop to the op-amp. An 8.25 kohm
resistor soldered parallel onto R36 will change
R36 to 4.12 kohm.
X7 W3 Everything else remains at default values.
X8 W2 W3 jumper Everything else remains at default values.
Figure 7–3.
C13 in the control circuit of the FSU detector