Electrical Connection - ABB LLT100 Operating Instruction

2 L LT 1 0 0 | L A S E R L E V E L T R A N S M I T T E R | C I/ L LT 1 0 0 - E N R E V. A
1 Health & Safety
WARNING
Bodily injury
Read the LLT100 Operating Instruction
care fully before working with the product.
For personal and system safety, and for optimum
performance, make sure that you thoroughly un derstand
the contents before installing, using or maintaining this
instrument.
NOTICE
• All servicing of the equipment is to be per formed at
factory by qualified service person nel only.
• No user / operator adjustments inside the LLT100 level
transmitter are recommended by the manufacturer.
Product labels
Symbols that appear on this product are shown below::
Protective earth (ground) terminal.
Direct current supply only.
2
HART terminal – 2 wires
OI/LLT100-EN
HART terminal with heater option –
2 + 2 wires
Use wires and cable glands rated 90 °C (194 °F) minimum.

Electrical connection

Attention – location of ground
The Ground symbols is used to identify protective
earth conductor terminals.
Attention – direct current
Internal protective earth
(ground)
Cover lock screw M4
External ground
termination point
Positive (+)
Negative (–)
*Optional external
meter (+)
Internal protective earth
(ground)
External DC supply:
+24 V DC, 3 W
0 V (return)
Cover lock screw M4
External ground
termination point
Positive (+)
Negative (–)
*Optional external
meter (+)