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Instruction Manual
245364-V
May 2002
5-14 Circuit Analysis Rosemount Analytical Inc. A Division of Emerson Process Management
Model 755A
10
20K
.1uF
1
To Recorder
-
+
U13
Front
Panel
TEST
100X
50X
20X
1X
-
+
U16
5V
.1uF
10X
5X
2M
To Alarm and V/I
Amplifier Gain
(Jumper Selectable)
Recorder Output
(Jumper Selectable)
20K
R50A
20K
1M
200K
100K
20K
2
3
4
Recorder
Zero
Suppression
(Jumper
Selectable)
Continuously
Variable
Recorder
Zero
Suppression
(0% to 25%
Oxygen)
+REF
-REF
20K
75K
17.8K
25K
80%
8.33K
60%
25K
25K
25K
40%
20%
1V
100mV
10mV
Resistor Values are in Ohms.
Figure 5-10.Simplified Analog Output Circuit for Recorder (Showing Three Ranges)