EXi-F
positive pressure smoke control system
„MERCOR” S.A. –
Specifications are subject to change without notice. Version DTR_EXIF_EN_20220516
Page
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Fig. 14.
mcr ICS digital pressure transmitter - general view
mcr ICR pressure regulator can be connected to 24 mcr ICS digital pressure transmitters. The
system components communicate via mcr BUS with high throughput and providing the highest safety
level. mcr BUS is a multi-master type bus where the data can be transmitted anytime by any device
connected to the bus, and each transmitter may immediately notify the pressure regulator on any
failure or alarm signal.
The components are connected in a loop to guarantee efficient operation of the entire system in
case of a single communication cable failure.
The line continuity is continuously monitored. The pressure converters send periodical status
information to the regulator to ensure continuous monitoring of the system status and detection of the
following failures:
line discontinuity,
mcr ICS digital pressure transmitter removed or faulty
alarm input discontinuity for mcr ICS,
digital pressure transmitter failure for mcr ICS.
The pressure source is connected via a flexible 8 mm dia. pressure line (5 m pressure line included
with the pressure transmitter).
Table 3.
mcr ICS pressure transmitter specification
Power supply
24±15% [V], AC/DC
Protection
Internal safety fuse, 140 [mA]
Operating temperature
-25
÷
55 [C]
Enclosure protection rating
IP44
Dimensions
135 mm x 135 mm x 65 mm
Installation
To flat surface with 2 screws
Cable grommets
Grommets - 4 PG11 cable glands with seal.
Electrical connection
Maximum wire diameter 2.5 [mm²], max. 1 wire per
terminal
Pressure connection
Pressure line connectors. Connectors outside the
enclosure, dia. 6 (mm)
Output
Differential interface, distributed system, galvanic
separation mcr BUS driver
Sensor range
Pressure -500 ÷ +500 (Pa)
