Siemens Pacemaker UM344-2 Manual de usuario descargar pdf (Pagina 64)

INSTALLATION UM344-2

September 1995

Ÿ Thermocouple wire must be handled with great care when being installed in conduit. Decalibration of

the wire can result by cold-working the metal conductor, an effect that can occur when the wire is drawn

through a conduit or damaged by rough handling or vibration.

4.4.5.2 Cables

Ÿ Mark or tag each signal cable conductor as either SIGNAL (+) or SIGNAL (-) to ensure correct

connection at the Transmitter.

Ÿ Mark or tag each sensor wire to be connected to a remote mounted transmitter to indicate its specific

transmitter terminal number (1, 2, 3) connection

EXAMPLE: 3-wire RTD tag descriptors: RTD (+) #1, RTDI #2, RTD (-) #3

Thermocouple tag descriptor: TC (+) #1, TC (-) #3

Ÿ Use pulling grips and cable lubricants for easier cable pulling. Pull cable through conduit into

Transmitter terminal compartment.

Ÿ Do not exceed the maximum permitted pulling tension on the cables. Maximum tension is normally

specified as 40% of the cable's breaking strength.

Ÿ Do not exceed the maximum conduit fill specified by the National Electric Code.

4.4.5.3 Access to Transmitter Terminal Compartment

Two terminal strips for signal (loop), MXC, test (milliammeter), and sensor connections are located inside

the shorter enclosure cap; see Figure 1-1. To access the terminal strips, simply unscrew the enclosure

cap protecting the terminal compartment.

This completes the mechanical installation.

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Siemens Pacemaker UM344-2 Manual de usuario Pagina 64