Pavone Systems MC 315 Series, Техническое руководство, Страница: 5 / 62

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INTRODUCTION
The MC 315 is a weighing unit designed and manufactured in accordance with directive 2014/34/
EU, fit for use in locations with potentially explosive atmospheres in compliance with norms EN 60079-
0:2018, EN 60079-11:2012, and EN 60079-26:2015.
Operation is allowed in zones 1, 21, and 2, 22 (1, 2 for gases, 21, 22 for powders) as per Directive
ATEX 2014/34/EU.
Operation in zones subject to the risk of explosion is safe because the indicator uses low energy, which
is not sufficient to trigger explosions either with power sparkles or with excess temperatures (class T4).
The weighing terminal features a centralized CPU, a LED display, a membrane keyboard, and a se-
parate power pack, which should be located in a safe zone or placed in a separately ATEX-certified
enclosure when installed in a dangerous zone; such power pack is made up of a dedicated AL-AX
power unit or an AL-BX battery pack.
The unit can be placed on a table or hung on the wall by means of an optional bracket.
The display ensures easy reading of weight, unit status, configuration parameters, and errors.
The multi-function 21-key keyboard ensures smooth performance of the following functions: ZERO,
TARE, GROSS/NET switching, weight set point set-up, configuration, and calibration, both theoretical
and actual.
The optical fiber connection allows to convey to a safe zone the information required to calculate, via
the S3xx interface, the analogue voltage or current output, IN-OUT, RS232, and RS485, without using
any Zener barriers.
Two RS485 serial ports with ASCII or MODBUS protocol allow remote connection for a maximum of
32 addressable devices, both in a safe and in a dangerous zone, using specific Zener barriers.
Two optoinsulated inputs are also available and can be connected with devices both in a dangerous and
in a safe zone, as well as 6 photorelay outputs that can be connected with devices in a dangerous zone.
Available versions:
•
MC 315: weight indicator with optical fiber output, 2 RS485 serial ports. Supports the
ASCII and Modbus RTU continuous protocols. Two inputs and 6 outputs.
•
MC 315/X: version with XXXXX.
• MC 315/XXX: XXXXXXXXXXXXX.