MECHANICAL INSTALLATION
Mounting
The LCT-485 is designed to be attached to a 35 mm DIN rail via the included clip.
ELECTRICAL INSTALLATION
The LCT-485 is not certified for use in hazardous areas. It must only be
connected on the safe side of the Intrinsically Safe isolator or barrier.
3
*
Max. cable length 30 m
** Max. cable length 30 m (use of RS-485 Modbus repeater allows longer cable on the
Master side)
Connections with Intrinsically Safe Isolator
Connections with Zener Barrier
LCT-485
LCT-485
4
270 Ω
1
13 & 14
13 & 14
12
12
11
11
2
3
IS Isolator
Power
Supply
Sensor
4-20 mA*
+
+24 V DC
-
-
Indicator
(optional)
123°C
+
-
+24 V DC
-
4
270 Ω
1
2
3
RS-485
Modbus
RTU**
RS-485
Modbus
RTU**
Power
Supply
4-20 mA*
+
-
Zener
Barrier
Safe area
Safe area
Hazardous
area
Hazardous
area
Sensor
Indicator
(optional)
123°C
Screw Terminals
COM
12
4
2
14
RS-
LOOP+
GND
Power Supply
4-20 mA Loop
RS-485 Modbus RTU Slave
11
3
1
13
RS+
LOOP-
+24 V DC
