Emerson Process Management Series 9110 Pcb Reference Drawings, Current Output Span & Load

Models: CI-9110 9110-00A Series 9110

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5.DMM #1 should read 4.995 V, ±.01 V

6.If the reading of step 5 is out of tolerance, adjust potentiometer R35 on CPU Board to correct.

7.Recheck both points and readjust if required.

5.8.2 Current Output Span & Load

The current output circuitry is provided with two calibration adjustments. Potentiometer R50 is used for span adjustment and R49 for load compensation. For these tests DMM #2 using the current measurement function is connected in series with a 250 ohm resistor load as shown in Figure 5-3. The pushbutton switch is used to jump the load.

1.Adjust input test circuit for 4.995 V on DMM #1.

2.DMM #2 should read 20 mA. If necessary, adjust pot R50 to correct.

3.Press load pushbutton while observing DMM #2. If current reading increases, adjust R49 CCW. If reading decreases, turn it CW. Repeat procedure until change is less than

±.02 mA.

4.Final reading should be 20 mA, ±.02 mA. If necessary, reset pot R50 and repeat procedure.

5.Calibration is complete. Restore unit to normal operating status.

5.9 PCB REFERENCE DRAWINGS

Table 5-1 below provides part numbers and drawing references (Figures 5-4 through 5-7) for the printed circuit boards provided with the Remote Set Regulator.

Table 5-1 - CPU Board & Termination Board Reference Table

Fig.

Assembly

Part #

Pag

 

 

 

e

5-4

Assembly, Analog Type CPU Board w/ Current Output (12V)

389615-03-0

5-9

5-4

Assembly, Analog Type CPU Board w/ Current Output (24V)

389615-06-4

5-9

5-5

Assembly, Analog Termination Board

389644-01-3

5-9

5-6

Assembly, Raise/Lower Type CPU Board w/ Current Output (12V)

389613-03-7

5-10

5-6

Assembly, Raise/Lower Type CPU Board w/ Current Output (24V)

389613-06-1

5-10

5-7

Assembly, Raise/Lower Termination Board

389616-01-0

5-10

Service

5-8

CI-9110

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Image 48
Emerson Process Management Series 9110, CI-9110, 9110-00A Pcb Reference Drawings, Current Output Span & Load