Electrical Safety Information - Sony Multiscan CPD-1304S Service Manual

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2.6 Electrical safety information

As for the installation, (de)commissioning and maintenance in general, reference is made to the
corresponding technical regulations. All national, local or corporate standards and regulations that
are usable to the location of the Q2 must always be taken into account and applied.
The electrical connections of Q2 must be matched to the connection plan
(see chapter 5.4.3). The power supply must be externally protected by a
fuse or an automatic circuit breaker. The over-voltage and current
protection for the wireing must be ensured by the power supply too.
The electrical connection of the Q2 may only be made via suitable
feedthroughs to the connection box of the device.
Standards and guidelines on the following topics must in particular be taken into account:

Electrical apparatus / devices for explosive gas atmospheres areas

Operation of electrical installations

Inspection and maintenance of electrical installations in hazardous areas

Installation of power installations with nominal voltages up to 1000V - tests - initial tests

Ordinance on Industrial Safety
Q2 has no On Off switch of its own. For functional or emergency purpose
the installation must be equipped with a switch or circuit breaker used as
disconnecting device. (Operating voltage range 48 V DC or higher)
This disconnecting-device (not part of the supply) must be located in the vicinity of the Q2
according to the Ex and electrical safety regulations. It should consider isolation of all power
supply conductors to the hazardous area and comply with the preconditions as mentioned in the
standard for where it is located. An example of such a device according to the ISO/IEC61010-1
is a circuit breaker which triggers within 120 seconds at a current of 200/U. At exactly 24V DC
this current is 8.3 A. A suitable value could be C4A circuit breaker.
The electrical entry must be installed on site and, if necessary, also re-
placed there to comply with explosion protection regulations. This should
only be done by authorized personnel who comply with the relevant regu-
lations. As a result, Elster GmbH is only be responsible for the correctness
of this work if it were performed by or on behalf of Elster GmbH.
The electrical installation must in any case comply with all usable laws and
regulations for the respective location (e.g. DIN, EN, VDE, UL etc.)
Housing and mounting structure must be included in the local grounding situation or potential
equalization. The device must be grounded by the ground screw at the bottom of the housing.
Operation of the device without potential equalization or wilful interruption
of this connection is prohibited.
Opening the device under voltage or working on its internal energized
electrical equipment is generally prohibited, especially in explosive areas.
Page 14 of 135 G a s Q u a l i t y A n a l y z e r
Safety information and warnings
GasLab Q2