MSA SUPREMATouch - Page 131

SUPREMATouch
130
Installation
MSA
US
General:
- The site chosen for the installation of the system must ensure that no excessive electromag-
netic loads are present.
- The power supply connection must be equipped with a line filter of type FN 2060 (Schaffner)
or equivalent
- For the external 24-volt supply, a line filter of type FN 660 (Schaffner); 20 A or equivalent must
be provided.
- Care must be taken to ensure that the line filters are in good contact (low resistance) with the
mounting plate of the service cabinet.
- A clean grounding point must be provided for the potential ground.
- Power supply cables are to be kept away from remote measurement/data lines (> 30 cm).
- All cables, unless otherwise specified, must be screened (> 80% coverage); they are to be con-
nected to the rack.
- The rack is to be equipped with separate potential ground.
- The connection of the cable screen should be as short as possible.
- Cables for data transmission (CAN, RS232, etc.) must be screened. There must not be any
potential difference between the interface of the cable screen and ground. The cable screen
must have good contact with the housings of the plug connectors.
- The cables for remote racks must be laid protected against mechanical damages (CAN,
RS 232 etc.).
Fig. 59 MAT Module, connection of the screening
Connection of the Sensors:
(23) By means of the MAT module, directly to the rack:
The remote measuring cables for passive/active sensors must be screened (>80 % coverage),
and the cable screen is to be connected to the terminals provided.
The SUPREMATouch was performance evaluated at CSA for use with combustible gas detectors
only.
(24) By means of the MAT TS module in the service cabinet (40-way ribbon cable):