Siemens Pacemaker UM344-2 Manual de usuario descargar pdf (Pagina 128)

CALIBRATION AND MAINTENANCE UM344-2

September 1995

1. Turn off power to the transmitter and remove protective enclosure cap to access the LCD.

2. Snap a grounding wrist strap on wrist and connect ground clip to transmitter or mounting bracket.

3. As shown in Figure 4-10, disconnect cable from Digital Meter Board and slide cable from cable slot in

Board.

4. Connect the cable to the spare LCD. Restore power to the transmitter and check that the spare LCD

is functioning correctly. To repeat the test, use the MXC to TEST the transmitter.

5. If the spare LCD functions correctly, replace the defective LCD. Refer to Section 4.4.4.

If the spare LCD exhibits the original problem, replace the Electronics Module. Refer to Section 6.5.

6.3.4 Enclosure Thread Lubrication

Enclosure caps should turn smoothly and easily on the enclosure threads. These threads are factory

coated with a wet, paste-type, anti-seize compound such as Never-Seez by Emhart Bostik.

Ÿ Do not use force to thread a cap onto the enclosure.

Ÿ Be careful not to wipe off the lubricant while handling the transmitter.

Ÿ Recoat the enclosure threads if the cap is at all difficult to turn on the enclosure threads.

Ÿ Always inspect the enclosure O-ring for damage before installing a cap.

6.4 NON-FIELD-REPLACEABLE ITEMS

Ÿ Enclosure Cap Display Viewing Glass: Agency regulations do not permit field replacement of a

broken or damaged glass as this would invalidate the

enclosure's explosion proof rating. Replace the entire

damaged enclosure end cap assembly.

Ÿ Power/Sensor Input Terminal Strip: A damaged (unusable) terminal strip requires the

replacement of the enclosure body

Ÿ Electronics Baseboard: ---

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Siemens Pacemaker UM344-2 Manual de usuario Pagina 128