Owner’s Manual - Regal Intensive Care Unit

7.Pull the knob off the shaft.

8.With a 1/2-in. wrench, remove the lock nut behind the knob (Figure 109).

9.Pull out the old potentiometer and attached wires.

Installation

1.Place the new potentiometer into the electronics compart- ment door from the rear. Note: Make sure that the three terminals on the rear of the potentiometer are on top (Figure 110).

2.Secure the potentiometer with the lock nut (Figure 109).

3.Replace the knob and tighten the lock screw.

Note: The three soldered wire terminals on the potentiometer are shown in Figure 110:

„Center terminal - wire goes to Terminal 1 on meter

„Front terminal - wire goes to Terminal 2 on meter

„

Rear terminal - not used

Rear Terminal

Center

Terminal

1

2

Front

Terminal

4.

Connect the wire from the center terminal

 

to Terminal 1 on the meter.

5.

Connect the wire from the front terminal

 

to Terminal 2 on the meter.

6.

Replace the wire tie you removed earlier.

7.

Observe the meter while you turn the

 

calibration knob. The calibration needle

 

should move in response to the knob.

8.

Close and secure the electronics com-

Figure 110. Wire Terminals on the Rear of the Potentiometer

 

partment door.

9.

Using the calibration knob, position the

 

calibration needle in the oxygen concentra-

 

tion meter to 20.5%.

10.

Plug the power cord into its wall outlet.

Form No. 702718 Rev. A March, 2005

97

Page 108 Page 110
Page 109
Image 109
Suburban Mfg 12019-01-NGFREP manual Wire Terminals on the Rear of the Potentiometer
Page 108 Page 110

12019-01-NGFREP specifications

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