Gonnheimer Elektronic F870S, Руководство пользователя

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F870S 3 Mounting and connection Page 13
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3 Installation and Connection
3.1 Mounting
3.1.3 Control unit FS870S
The control unit can be placed inside a hazardous area. The location (inside or outside the
enclosure) as well as the position is almost arbitrary.
The control unit has 4 holes on the rear plate for mounting, although fixing only with the
screw connection of intake or outlet is sufficient.
While mounting observe local safety guidelines and
the regulative DIN EN 60079-14.
The reference input of the device (M5 thread on the
left side) should be in the ex area.
If the device is mounted inside the Ex p- housing, the reference input
must be connect to the ambient by a pipe connection.
The solenoid valve(s) and the control unit (respec-
tively pressure monitor) should be mounted on the
enclosure as far away from each other as possible
(E.g. space diagonal arrangement), to achieve a total
purging.
3.1.4 Particle barrier
The control device contains a particle barrier according to EN 60079-2. Therefore it is al-
lowed to exhaust the purge medium direct onto the ex area.
3.1.5 Proportional solenoid valve
The proportional working solenoid valve (SVP…) should be mounted outside of the Ex p
cabinet. The mounting direction is arbitrary.
3.1.6 Operator panels BT8xx.x
° Operator panel BT871.0
The operating tableau BT871.0 (without rear) becomes directly mounted outside on the Ex
p- cabinet. Therefore 5 drillings must be made into the cabinet. Please refer the drilling
scheme in the appendix.
° Operator panel BT871.5
The operator panel BT871.5 contents a complete housing in protection class IP65. It could
be mounted arbitrary in hazardous area Zone 1. Please refer the dimension scheme in the
appendix for the position and diameter of drillings.
° Operator panel BT854.x
The BT854.0 consists of 2 signal lamps and an On/Off switch which are directly attached to
the Ex p- cabinet. For the BT 854.1 a key switch to active bypass mode is added. Please
refer the dimension scheme in the appendix for the position and diameter of drillings.
° Operator panel BT855.x