Masoneilan SVI3 Installation and Maintenance Manual
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Controller outputs are separated internally from ground by a current sense resistor or a
control transistor
.
Dual channel barriers apply excessive loop resistance and cause
compliance voltage problems. An Intrinsically Safe galvanic isolator operates with all three
types of output channels, isolated, grounded or separated from ground, and provides
sufficient compliance voltage. The galvanic isolator must be certified by the manufacturer
to be HART
®
compliant if the HART
®
connections are supported on the safe area side of
the isolator
.
See Figure 41 on page 119. onsult barrier and isolator manufacturer for
devices rated for use with the SVI3 I
.
S. entity parameters in Hazardous Area Approvals.