Installing the Gas Analyzer 37
Connecting the Electrical Leads - Safety Information
ATTENTION
Follow all applicable national safety regulations for the installation and
operation of the electrical apparatuses as well as the following safety
instructions
Equipotential Bonding
The external equipotential bonding connections of the control unit and the
analyzer unit must be connected to the local potential equalization. The
local potential equalization must be connected before any other
connections are made. The capacity of terminals is of max. 4 mm
2
.
Risks of a Disconnected Equipotential Bonding
The gas analyzer can be hazardous if the equipotential bonding is
interrupted inside or outside the device or if the equipotential bonding is
disconnected. Carrying out work on the equipotential bonding or the
equipotential bonding connection is prohibited if there is an explosion
hazard.
Lay electrical lines in such a way that they are non-detachable
The electrical lines, including the connections between the analyzer unit
and the control unit, must be non-detachable.
Connecting Cable of the EL3060-Uras26 Analyzer Unit
The non-detachable connecting cables for data transmission and the 24
V DC supply are an integral component of the flameproof case of the
analyzer unit. In each case, they are 10 m long and may not be
shortened to a length of less than 1 m.
Screened Leads
Screened leads must be led through the metal screwed cable glands. The
braided shield must be placed on the screwed cable glands.
Separate Laying
Signal lines must be installed separately from the power supply lines.
Analog and digital signal lines must be laid separately from each other.
Unused Screwed Cable Glands
Unused screwed cable glands must be sealed with sealing plugs. The
cap nuts on the unused screwed cable glands must be non-removable.
Before Connecting the Power Supply
Before connecting the power supply, it must be ensured that the mains
voltage is in the permissible range 100…240 VAC for operation of the gas
analyzer.
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