Siemens Pacemaker UM344-2 Manual do Utilizador descarregar pdf (Página 68)

INSTALLATION UM344-2

September 1995

Standard ANSI color coding is used on insulated thermocouple or extension grade wire when the

insulation permits. Some insulations will use a colored tracer to indicate the lead polarity. Refer

to Table 4.2 for color code information and bare wire characteristics for identifying non-color

coded wires.

When connecting solid thermocouple extension wire, wire insulation should butt against the head

of the screw. The conductor should not be visible.

TABLE 4.2 Thermocouple And Extension Grade Wire Characteristics

ANSI TYPE POSITIVE LEAD NEGATIVE LEAD BARE WIRE

T/C METAL COLOR METAL COLOR CHARACTERISTICS

T Copper Blue Constantan Red Copper - yellow

Constantan - silver

J Iron White Constantan Red Iron - magnetic

Constantan - non-

magnetic

E Chromel Purple Constantan Red Chromel - shiny metal

Constantan - dull metal

K Chromel Yellow Alumel Red Chromel - non-magnetic

Alumel - magnetic

S Platinum & 10%

Rhodium

Black Pure Platinum Red ---

R Platinum & 13%

Rhodium

Black Pure Platinum Red ---

B Platinum & 30%

Rhodium

Gray Platinum with 0.6%

Rhodium

Red ---

3) Ohms-to-Milliampere Conversion - connect the OHM (+), OHM (-), and OHM I leads as shown

in Figure 4-13 detail E, Ohms Input.

4) Millivolt-to-Milliampere Conversion - Connect the mV (+) and mV (-) leads as shown in Figure 4-

13 detail F, mV Input.

Inspect each connection for strands of wire that could short to an adjacent terminal, for connection to

correct terminal, and for tightness of terminal screw.

Be certain that the shield braid is insulated from all terminals and the metal terminal enclosure.

6. Reinstall enclosure cap. Tighten cap to compress the internal O-ring.

IMPORTANT

Be certain that enclosure threads are coated with an anti-seize compound and

that the cap seal (O-ring) is in place before installing a cap. A typical compound

is Never-Seez by Emhart Bostik.

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