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8020216/19YN/V3-0/2020-12| SICK
O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-3K
Subject to change without notice
7
ELECTRICAL INSTALLATION
7
Electrical installation
All assembly work previously described must be completed (as far as applicable) before
starting installation work.
Carry out all installation work onsite unless otherwise explicitly agreed with SICK or
authorized representatives. This includes laying and connecting the power supply and
signal lines, installing switches and power fuses, and connecting the purge gas supply.
7.1
Electrical installation safety information
7.2
Connection overview
Pay attention to zone separation when installing and connecting device components (
“Application illustration DUSTHUNTER SP100 Ex-3K”, page 36
).
Connecting is done in three main steps:
1
Before connection work, establish potential equalization of devices to be connected.
2
Before commissioning: Make the connections for the device components, other than the
sender/receiver unit.
3
During commissioning: Establish the connections still required on the sender/receiver
unit at the measuring point.
NOTE:
Check device suitability before installation.
▸
Before installation, check that the type code and type plate match the intended
application.
●
Plan adequate line cross-sections (
see “Information on connection lines”, page 56
).
●
Line ends with plugs to connect the sender/receiver unit must have sufficient free
length.
●
The potential equalization line of the sender/receiver unit must be flexible enough to
allow the sender/receiver to be removed from the duct with the potential equalization
connected.
WARNING:
Endangerment of electrical safety during installation and maintenance work
when the power supply is not switched off.
An electrical accident can occur during installation and maintenance work when the
power supply to the device and lines is not switched off using a power isolating switch or
circuit breaker.
▸
Before starting work on the device, ensure the power supply can be switched off
using a power isolating switch or circuit breaker.
▸
Make sure the power isolating switch is easily accessible.
▸
An additional disconnecting device is mandatory when the power isolating switch
cannot be accessed or only with difficulty after installation.
▸
The power supply may only be activated again after the work, or for test purposes, by
personnel carrying out the work under consideration of valid safety regulations.
WARNING:
Endangerment of electrical safety through power line with incorrect rating
Electrical accidents can occur when the specifications for replacement of power lines
have not been adequately observed for the line.
▸
Always observe the exact specifications in the Operating Instructions when replacing
the power line (
