Omega TX82B Manual de usuario descargar pdf (Pagina 15)

Figure 7-1

Wiring Diagram for TX82B Usage for FM (Factory Mutual)

SAFE AREA

APPARATUS

EARTHED BUS BAR

INTER-

CONNECTING

CABLES

SHUNT ZENER

DIODE

SAFETY

BARRIER

SAFE AREAHAZARDOUS AREA

NOTES:

Apparatus which is unspecified except that it must not be supplied from nor

contain under normal or abnormal conditions a source of potential with respect to

Earth in excess of 250V R.M.S. or 250V D.C.

The following output parameters apply; Vmax=12.5V, Imax=250mA, Ci=8.6uF,

Li=0mH

The Interconnecting Cable may be a twin pair, or a pair contained in a type A or

type B multicore cable provided that the peak voltage of any circuit contained

within the multicore does not exceed 60 volts.

The capacitance or inductance or inductance to resistance (4/R) ratio of the

Interconnecting Cable must not exceed the values specified for the barrier in use.

5 The electrical circuit in the Hazardous Area must be capable of withstanding

without breakdown an A.C. test voltage of 500V R.M.S. to Earth or frame for one

minute.

7.0 WIRING DIAGRAM

MODEL

TX82B

INDICATOR

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Omega TX82B Manual de usuario Pagina 15