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A B B M E A S U R E M E N T & A NA LY T I C S | I N S T R U C T I O N
LST300_Terminals Description
- with Wiring Suggestions
Electrical connection
Make sure no power supply for LST300 before
installation.
Engineer must electrostatic discharge or use a
wristband before connecting the cable to the
LST300.
Ensure that the power supply is within the range
(12-42 V DC)
When the terminal cover of LST300 is opened, the
transmitter should be protected from dust and
moisture.
Figure 1. Cable Connection Area
Hot swappable power
supply is not recommended
Hot swap power supply (4 -
20 mA HART) is not
recommend for LST300.
Warning
–
Please turn off the power
Physical
supply before connecting the
Injury
LST300 to the power supply.
Electrostatic discharge
will cause material
damage
Open caps do not provide
contact protection, which
means touching conductive
devices can damage
Attention
-
electronic devices
Property
(sometimes beyond repair)
Loss
due to electrostatic
discharge. Do not touch
conductive devices.
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Related Manuals for ABB LST300 Series
Summary of Contents for ABB LST300 Series
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Page 1: Electrical Connection
— A B B M E A S U R E M E N T & A NA LY T I C S | I N S T R U C T I O N LST300_Terminals Description - with Wiring Suggestions Hot swappable power Electrical connection supply is not recommended... - Page 2 According to IEC 61000-4-2，the contact ESD Before installing the protection voltage of LST300 connectors is 4 kV transmitter in dangerous area, while the air ESD protection voltage is 8 kV. ABB Attention the red plug must be strongly recommends using wristbands or Important removed.
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Page 3: Analog Output
Analog output Ground Connection The LST300 needs to be grounded at the terminals, The LST300 has a 4-20 mA analog output for as shown in Fig. 2. transmitting measurements and alarms. LST300 has two ground connectors (PE). 20 mA output and power input are Effective grounding connection is needed transmitted on the same wire. - Page 4 Wiring Follow the following steps to connect the transmitter: 1. Remove the cover on one of the two electrical connection ports on the upper sides of the transmitter housing. 2. Install various adapters and bushings on the inch NPT internal threads of connection ports, if necessary, to conform to factory wiring (conduit) standards.