HAZARDOUS AREAS INSTALLATION
MODE
RESET
CANCEL
ENTER
SERIES 1400 MICROCONTROLLER
Sensor Input Ribbon Cable
INTRINSICALLY SAFE
EQUIPMENT
NON INTRINSICALLY SAFE
EQUIPMENT
S1400
Power Supply
Enclosure
(explosion-proof)
with IS barrier
Explosion-proof
Conduit Seal
(provided by user)
Power from
120 VAC, 12 or 24 VDC
Sensor Input
Ribbon Cable
Seals MUST be
within 18 inches
(457 mm) of
power supply
Optional for non intrinsically safe
Normally Open sensors inputs.
Each LCDT-ISB provides for
(2) two channels.
LCDT-ISB
Barrier
(explosion-
proof)
Sensor Input Terminal Block
Sensor Inputs
(such as Murphy
SWICHGAGE
®
control instruments)
Wiring to Terminal Block.
Power and
Control Cable
Explosion-proof
Conduit Seal(s)
(provided by user)
IMPORTANT: An approved isolation barrier such as the LCDT-ISB
barrier for normally open sensors or a thermocouple type barrier
for normally closed sensors MUST be used between the sensor
switch and input terminals if the sensor output comes from any
energy storing device such as a relay or transistor.
S1400 Module
Green to ground
Black to sensor input
terminal block(for one channel)
White to sensor input
terminal block (one channel)
WARNING: For hazardous application requirements, the S1400 complete system must be installed in accordance with the
National Electrical Code (NEC) Class
I
, Division 1, Group D (article 504) specifications, and per Murphy drawing HC12046.
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